JP7022877B1 - Waterway construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To construct a seamless canal / canal with less water leakage by excavating the ground at low cost and in a short construction period, and to reduce the amount of ready-mixed water used to reduce the uneven subsidence of the canal. To build. SOLUTION: A large number of side formwork KS to be a waterway embankment and a formwork surface are arranged in a row on the left and right groove walls of a waterway installation groove SM in which the ground GR is excavated, and a core formwork is provided at an intermediate position of the same side surface formwork. KNs are lined up long in the groove direction, construction sections are set in the groove direction, and improved soil in which a hardening agent or solidifying agent is mixed in the soil in the space between the side formwork KS and the core formwork KN. To form a waterway embankment by compacting the upper surface to a predetermined height, then demolding the core formwork KN, and then injecting ready-mixed concrete into the space where the side formwork was demolded to form concrete solidified material. The formwork is formed, and the formwork is composed of a pre-seam construction zone, an intermediate construction zone, and a succession construction zone, and the pre-seam construction zone and the succession construction zone of the preceding and following construction zones overlap each other, and the improved soil is put into each construction zone and compacted. [Selection diagram] FIG. 4

Description

The present invention relates to a construction method for constructing a continuous long waterway without a seam on the ground surface of a flat ground.

Conventionally, the method of constructing a waterway on a flat ground is to first excavate a waterway installation groove SM with the required width and depth on the flat ground for a long time along the planned waterway direction, and to prevent the groove from collapsing, a sheet pile on the groove wall surface. Drive Y to stabilize the groove. First, ready-mixed concrete is driven into the bottom surface of the groove to a predetermined thickness to produce a concrete batholith 50. After that work, first, two sets of parallel vertical wide area formwork 53, 54 for forming the left and right canal embankments 51, 52 of a predetermined thickness on the concrete bottom 50 in the channel installation groove drilled are constructed. (See FIGS. 21 and 22).

On the concrete bottom plate 50, the face plates 530 and 540 of the formwork are placed on the bottom surface of the groove at predetermined intervals (dimensions of the thickness of the embankment) on the two sets of formwork 53 and 54 on the left and right that form the thickness of each embankment on the left and right. Must be held vertically and firmly. Therefore, in addition to the space holding member 550 for maintaining the space between the face plates (control panels) of the formwork, a large number of support members 560 outside the formwork must be provided between the same surface plate and the sheet pile row of the groove wall surface (FIG. 21, 22). The lateral load acting on these formwork holding members is pressed against the row of continuous sheet piles Y driven into the ground and received. Then, ready-mixed concrete was poured into the two sets of formwork 53 and 54 on the left and right to form the canal embankment bodies 51 and 52 made of concrete.

In this conventional method of constructing canal embankments 51 and 52, the distance between the formwork (face plate) 530, 540 of each embankment and the groove wall (sheet pile Y) of the canal installation groove SM is required to be at least 670 mm, and the width is wide. It is necessary to excavate a wide water channel installation groove SM, and it takes time and effort to install the formwork 53 and 54, which increases the work cost. Further, since ready-mixed concrete is used for forming the concrete batholith 50 and the left and right embankments, the cost is high. Further, there is a problem that the length of the face plates 530 and 540 in the groove direction is limited, and a gap is generated in the formwork joint portion to easily cause water leakage.

Further, a great deal of labor and cost are required for setting and piping processing of the ready-mixed concrete pump for pouring a large amount of ready-mixed concrete.
In addition, the weight of the canal embankment formed of ready-mixed steel becomes heavy, and the weight of the canal embankments 51 and 52 may cause unequal subsidence of the canal embankment and the canal.

Japanese Unexamined Patent Publication No. 64-6405

The problem to be solved by the present invention is to solve the problems of the conventional canal embankment construction method, to enable a seamless canal embankment so that there is no water leakage at the seams, and to set the mold. An excellent canal embankment that can greatly reduce the labor time, reduce the amount of ready-mixed concrete used, and construct a canal embankment in a short construction period with low construction cost, and the constructed canal embankment has less uneven subsidence. Is to provide a construction method for.

The configuration of the present invention that solves this problem is
1) Perform the following steps (a), (b), (c), (e), (f), (to), (chi), (ri), and (nu) in the above order, and use soil and improved soil mixed with a hardening agent or solidifying agent on the ground surface. A canal construction method in which a canal is constructed by forming and solidifying a continuous canal embankment with no long seams. A groove excavation process in which a channel installation groove having a dimension deeper than the water depth of the channel is excavated long in the direction of the planned channel.
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting multiple left and right side formwork along the groove wall surface so that they can be attached and detached and fixed to the ground.
D: In the section Ki or a section in which a part of one or more sections thereafter is added, it is planned to be molded and solidified in the channel installation groove after the step of installing the side formwork of c. The middle position of the side formwork rows in which the core formwork with a predetermined height and a predetermined width d is installed on the left and right sides by stacking one or more stages to form a recess that becomes a water channel of the waterway embankment. The process of installing core formwork, which forms a core formwork row by arranging multiple rows along the groove direction.
E: _The side surface of the c. The side frame rows formed by installing a plurality of the left and right groove wall surfaces of the water channel installation groove in the mold installation process, and the left and right side mold rows in the core mold installation process of the d. In the section of length L1, which is the pre _- seam section of the section Ki in which the two form sets with the plurality of core form sets of the predetermined height arranged in the middle position in the groove direction are installed, this and this In addition to the partial input of the improved soil in the successor section of the section Ki _-1 before the overlap, the improved soil is charged so as to be sufficiently filled to the planned height of the embankment, and the upper surface of the filled soil is compacted. The improvement is made so that the space between the side frame row and the core form frame row is sufficiently filled up to the planned embankment height in the intermediate section of section Ki length L ₀ without compaction. The soil is charged and the improved soil charged so as to be filled in the intermediate section is compacted from the upper surface thereof, or this and the upper surface of the improved soil introduced in the previous seam section are compacted together to compact the section Ki. A waterway embankment with _a length L1 of the seam section and a length _L0 of the intermediate section was constructed, and in the successor section of the section Ki, the improved soil was placed at a height lower than the height of the embankment in the groove direction. _The process of constructing the waterway embankment of the section Ki, where the length of the successor section of length L1 is left at the height of the unfinished embankment.
F: After the step of constructing the waterway embankment body of the section Ki of the said section, if the side frame sequence and the core form frame row are not installed in the next section Ki ₊₁ the steps of the steps c and d are repeated. A side frame row and a core frame row are set up in the section Ki ₊₁ and then the length L ₁ of the previous joint section and the length L ₀ of the intermediate section in the next section Ki ₊₁ are the same as in the process of E. Filling and charging of improved soil at L ₀ + L ₁ and compacting to construct a channel embankment, and lowering the height of the improved soil to be added to the remaining successor section in the groove direction. Perform the process of constructing the waterway embankment body of the above-mentioned e as an unfinished embankment body, and repeat the injection and compaction of the improved soil and the injection of the unfinished improved soil in the section Ki _{+ 2} which is increased by 1 to the construction order i ₊₁ below. In the process of extending the canal embankment to extend the canal embankment for a long time,
G: When the improved soil of the canal embankment constructed long by the steps of c, d, e, and f is solidified, the recess formed by demolding the core mold from the canal embankment is described. The process of forming a recess to make a waterway through which water flows in the waterway embankment,
H: The improved soil is poured into the bottom of the recess formed in the channel embankment in the step of forming the recess to form the bottom of the channel by pouring a predetermined thickness into the bottom of the channel, and the remaining recess space is used as the channel. Construction process,
Li: If the canal embankment is formed and solidified after or during the process of constructing the canal, the side formwork is released from the ground and pulled out from the canal installation groove to create a space for the side formwork traces. When a formwork occurs, a process of strengthening the formwork, in which a grout or cement-based solidifying agent is injected from the ground surface into the generated space and the space is filled with solidified material to firmly construct the canal formwork in the ground,
N: A process of connecting a canal that connects the canal of the constructed canal embankment to another canal of another water system at the upstream / downstream canal connection part 2) A waterway is constructed by forming and solidifying a long seamless continuous waterway embankment with soil and improved soil mixed with a hardening agent or a solidifying agent on the ground surface by constructing the steps of, ri, and nu in the above order. A. Waterway construction method a: In the ground where the waterway is constructed, a waterway installation groove that is wider than the width of the waterway embankment of the waterway to be constructed and deeper than the water depth of the waterway is excavated long in the direction of the planned waterway. Grooving process,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting a large number of left and right side formwork along the groove wall surface so that they can be attached and detached and fixed to the ground.
Yo: In the section Ki or the section of the previous joint section and the section of the intermediate section after that, one or more sections.
As the core formwork, a stackable core formwork that can be stacked in multiple stages to different heights is used, and the bottom core formwork is placed at the intermediate position between the left and right side molds. A large number of rows are laid on the bottom of the channel groove, then the improved soil is filled up to the height of the bottom core formwork, compacted at that height, and then the next core formwork is stacked and the next stage. The process of putting the improved soil into the space between the core formwork and the side formwork, filling it up to the height of the next core formwork, and then tightening the filled improved soil is the core formwork. By repeating each time the core formwork is stacked and raised, the core formwork is stacked up to a predetermined height, and the space between the stacked core formwork and the side formwork of the predetermined height is improved soil. In the successor section of the section Ki, the improved soil formwork is set to the height of the incomplete embankment so that the height gradually decreases in the groove direction at a low height. And the process of loading and compacting each step of the improved soil,
T: After the step of charging and compacting each stack of Yo, if the side frame row and core mold row are not installed in the next section Ki _{+ 1} , the steps of C and Yo are repeated to the next. A channel embankment was constructed by adding and compacting the improved soil at L ₀ + L ₁ with a length L ₁ of the previous joint section of section Ki ₊ 1 and a length of L ₀ of the intermediate section, and the remaining successor section The waterway embankment construction process was carried out to make the unfinished embankment body so that the height of the improved soil to be added was gradually reduced in the _direction of the _ditch . By repeating the installation of the stacking core mold, the injection and compaction of the improved soil in the pre-seam section and the intermediate section, and the input of the unfinished improved soil in the successor section, the channel embankment is extended for a long time. Body extension process,
Re: When the improved soil of the canal embankment constructed long by the steps of c, yo, and ta is solidified, the recess formed by demolding the core mold from this canal embankment is the canal embankment. The process of forming a recess as a water channel through which body water flows,
H: The improved soil is poured into the bottom of the recess formed in the channel embankment in the step of forming the recess to form the bottom of the channel by pouring a predetermined thickness into the bottom of the channel, and the remaining recess space is used as the channel. Construction process,
Li: After the step of constructing the water channel of Chi, when the side formwork is released from the ground and pulled out from the waterway installation groove to generate a space of the side formwork trace, the generated space is grouted from the ground surface. Alternatively, the process of strengthening the embankment to firmly construct the canal embankment in the ground by injecting a cement-based solidifying agent and filling the space with solidified material.
N: A process of connecting a canal that connects the canal of the constructed canal embankment to another canal of another water system at the upstream / downstream canal connection 3) , To', Chi', Li', and Nu are carried out in the above order to form a long, seamless continuous channel body with soil and improved soil mixed with a hardening agent or solidifying agent on the ground surface. A waterway construction method that constructs a waterway by solidifying a: A waterway installation groove that is wider than the width of the waterway embankment of the waterway to be constructed and deeper than the water depth of the waterway is provided on the ground where the waterway is constructed. Groove excavation process for long excavation in the planned channel direction,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting multiple left and right side formwork along the groove wall surface so that they can be attached and detached and fixed to the ground.
D: In the section Ki or a section in which a part of one or more sections thereafter is added, it is planned to be molded and solidified in the channel installation groove after the step of installing the side formwork of c. The core formwork having a predetermined height and a predetermined width d is installed on the left and right sides of the side formwork row by stacking one or more stages to form a recess forming a water channel of the waterway embankment. The process of installing core formwork, which forms a core formwork row by arranging multiple rows along the groove direction at intermediate positions.
E': _In the section Ki of the section Ki having the predetermined length L2 along the groove of the channel installation groove, or in the section where a part of the section in the subsequent one or more construction order is added, the section of c. The side frame rows formed by installing a plurality of the side frame installation steps on the left and right groove wall surfaces of the water channel installation groove, and the left and right side frame rows in the core frame installation process of D. This is for the section of length L1 which is the pre _- seam section of the section Ki in which the two form sets are installed with the plurality of core form sets of the predetermined height arranged in the middle position in the groove direction. In addition to the partial input of the improved soil in the successor section of the section Ki _-1 before overlapping with, the improved soil is input in multiple times so as to be sufficiently filled to the planned height of the embankment, and each input is performed. The upper surface of the improved soil is compacted, and the space between the side frame row and the core type frame row is sufficiently filled up to the planned embankment height in the intermediate section of section Ki length _L0 . The improved soil is poured into the improved soil in a plurality of times, and the upper surface of the improved soil is _{compacted each} time the improved soil is added. In addition, the improved soil was poured into the successor section of the section Ki so that the height gradually decreased in the groove direction at a height lower than the height of the bank _body , and the successor section of length L1 was not completed. The process of constructing the waterway embankment of the section Ki that keeps the height of the body,
F': After the process of constructing the waterway embankment in the section Ki of the section E', if the side frame sequence and the core frame sequence are not installed in the next section Ki _{+ 1} , the steps c and d are repeated. In the section Ki _{+ 1} , a side frame row and a core frame row are installed, and then the length L ₁ of the previous joint section and the length L ₀ of the intermediate section of the next section Ki ₊₁ are the same as in the process of the above-mentioned e'. Filling of improved soil with L ₀ + L ₁ to construct a channel embankment by compaction at each injection, and for the remaining succession section, only make the height of the improved soil to be added low so as to gradually decrease in the groove direction. In the process of constructing the waterway embankment, which is the _{unfinished embankment} of The process of extending the canal embankment, which extends the canal embankment for a long time by repeating the injection of unfinished improved soil in the successor section,
G': If the improved soil of the canal embankment constructed long by the steps of c, d, e, and f solidifies, the recess formed by demolding the core mold from this canal embankment. Is the process of forming a recess, which is a channel through which water flows in the channel body.
J': The improved soil is poured into the bottom of the recess formed in the channel embankment in the step of forming the recess in the above-mentioned g', and bottomed out to form the bottom of the channel, and the remaining recess space is used as the channel. Waterway construction process,
Li': If the canal embankment is formed and solidified after or during the process of constructing the canal of Chi', the side formwork is released from the ground and pulled out from the canal installation groove to trace the side formwork. When a space is created, a glaut or cement-based solidifying agent is injected from the ground surface into the created space, and the space is filled with solidified material to firmly construct the canal formwork in the ground. ,
N: A process of connecting a canal that connects the canal of the constructed canal embankment to another canal of another water system at the upstream / downstream canal connection part 4) , Wo, Wa, Nu are carried out in that order, and a long seamless continuous canal embankment is formed and solidified on the ground surface with soil and improved soil mixed with a hardening agent or solidifying agent. A: A channel installation groove that is wider than the width of the channel and deeper than the depth of the channel to be constructed in the ground where the channel is constructed. Groove excavation process for long excavation,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting multiple left and right side formwork along the groove wall surface so that they can be attached and detached and fixed to the ground.
D: In the construction section where the section Ki or a part of one or more sections thereafter is added, the channel embankment to be molded and solidified in the channel installation groove after the step of installing the side formwork of c. Multiple grooves of core formwork with a predetermined height and a predetermined width d at the intermediate position of the side formwork rows installed on the left and right sides by stacking one or more stages to form a recess forming a water channel of The process of installing core formwork, which forms a core formwork row by arranging them in a row along the direction.
E: _The side surface of the c. The side frame rows formed by installing a plurality of the left and right groove wall surfaces of the water channel installation groove in the mold installation process, and the left and right side mold rows in the core mold installation process of the d. In the section of length L1, which is the pre _- seam section of the section Ki in which the two form sets with the plurality of core form sets of the predetermined height arranged in the middle position in the groove direction are installed, this and this In addition to the partial input of the improved soil in the successor section of the section Ki _-1 before the overlap, the improved soil is charged so as to be sufficiently filled to the planned height of the embankment, and the upper surface of the filled soil is compacted. In the intermediate section of section Ki length L ₀ without compaction, the improved soil is filled so that the space between the side frame row and the core type frame row is sufficiently filled up to the planned embankment height. The improved soil charged so as to be filled in the previous joint section and the intermediate section is compacted from the _upper surface thereof, and the length L1 of the previous joint section and the length _L0 of the intermediate section of the section Ki are set. A waterway embankment is constructed, and the improved soil is poured into the successor section of section Ki so that the height gradually decreases in the groove direction at _a height lower than the height of the embankment, and the successor section of length L1 is constructed. Is the process of constructing the waterway embankment of the section Ki, which leaves the height of the unfinished embankment.
F: After the process of constructing the waterway embankment in section Ki of the above section, if the side frame and core frame are not installed in the next section Ki _{+ 1} , the steps of c and d are repeated. A side frame row and a core frame row are installed at Ki ₊₁ and then L ₀ of the length L ₁ of the previous joint construction section and the intermediate section length L ₀ of the next section Ki ₊₁ in the same manner as in the process of E. Filling and charging of improved soil at + L1 and compacting to construct _a channel embankment, and the remaining successor construction area is incompletely charged so that the height of the improved soil to be charged is gradually reduced in the direction of the ditch. The process of constructing the waterway embankment body of the above-mentioned e as a embankment body is carried out, and the waterway is similarly added by repeating the injection and compaction of the improved soil and the injection of the unfinished improved soil in the section Ki _{+ 2} which is increased by 1 to the construction order i ₊ 1. The process of extending the waterway embankment to extend the embankment for a long time,
Le: If the canal formwork is formed and solidified after or during the process of extending the canal formwork to the above, the side formwork is released from the ground while leaving the core formwork inside the canal formwork. When a space of side formwork traces is generated by pulling out from the canal installation groove, a grout or cement-based solidifying agent is injected from the ground surface into the generated space to fill the space with solidified material, and the outside of the canal embankment is formed. The process of strengthening the formwork to firmly build in the ground,
W: The recess formed by demolding the core mold from the canal embankment that has been constructed for a long time by the steps of c, d, e, and f and the improved soil of the canal embankment is solidified is the canal embankment. The process of forming a recess to make a water channel through which water flows,
W: Construction of a waterway in which the improved soil is poured into the bottom of the recess formed in the waterway embankment in the process of forming the recess in the above and bottomed out to form the bottom of the waterway, and the remaining recessed space is used as the waterway. Process,
N: The process of connecting the canal of the constructed canal to the canal of another water system at the upstream / downstream canal connection 5) The following a, b, ha, yo, ta, ru, so A waterway is constructed by forming and solidifying a long seamless continuous waterway embankment with soil and improved soil mixed with a hardening agent or a solidifying agent on the ground surface by constructing the steps of, wa, and nu in that order. A. Waterway construction method a: In the ground where the waterway is constructed, a waterway installation groove that is wider than the width of the waterway embankment of the waterway to be constructed and deeper than the water depth of the waterway is excavated long in the direction of the planned waterway. Grooving process,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting multiple left and right side formwork along the groove wall surface so that they can be attached and detached and fixed to the ground.
Yo: In the section Ki or the section of the previous joint section and the section of the intermediate section after that, one or more sections.
As the core formwork, a core formwork that can be stacked in multiple stages to reach a predetermined height is used, and the bottom core formwork is placed at the bottom of the channel groove at the intermediate position between the left and right side surface forms. After arranging many rows on the top, fill the improved soil to the height of the bottom core formwork, compact it at that height, then stack the next core formwork, and then stack the next core formwork. The process of putting the improved soil into the space between the formwork and the side formwork, filling it up to the height of the core formwork of the next stage, and then tightening the filled improved soil is the step of the core formwork. By repeating each time the formwork is stacked and raised, the core formwork is stacked up to a predetermined height, and the space between the core formwork and the side formwork of the predetermined height stacked is improved soil. In the successor section of section Ki, the improvement soil filling is at a low height and the height is set to the height of the incomplete embankment so that the height gradually decreases in the groove direction. And the process of filling and compacting the improved soil,
T: After the step of filling and compacting the section Ki of Yo, if the side frame row and the core mold row are not installed in the next section Ki _{+ 1} , the step of filling and compacting of C and Yo is performed. Repeatedly fill and inject improved soil in the length L ₁ of the previous joint section of the next section Ki ₊₁ and L ₀ + L ₁ of the intermediate section length L ₀ , and compact it to construct a channel embankment, and the remaining successor The construction area will carry out the waterway embankment construction process, which will be an unfinished _embankment with only a low input so that the height of the improved soil to be input will gradually decrease in the direction of the _ditch . In the same way, the installation of the stacking core mold, the injection and compaction of the improved soil for each stack of the core mold in the previous joint construction area and the intermediate construction area, and the input of the unfinished improved soil in the successor construction area are repeated. In the process of extending the canal embankment, which extends the canal embankment for a long time.
Le: If the canal formwork solidifies after or during the process of extending the canal embankment, the side formwork can be fixed to the ground while leaving the core formwork inside the canal embankment. When the space of the side formwork trace is generated by unraveling and pulling out from the canal installation groove, a grout or cement-based solidifying agent is injected from the ground surface into the generated space, and the space is filled with solidified material to form the canal embankment. The process of strengthening the formwork to firmly build the outside in the ground,
S: Improvement of the canal embankment that was constructed long by the steps of C, Yo, Ta, and Lu. The process of forming a recess as a water channel through which water flows,
W: Construction of a waterway in which the improved soil is poured into the bottom of the recess formed in the waterway embankment in the process of forming the recess in the Soviet Union to form a bottom of the channel by pouring a predetermined thickness into the bottom of the channel and using the remaining recessed space as the channel. Process,
N: A process of connecting a canal that connects the canal of the constructed canal embankment to another canal of another water system at the upstream / downstream canal connection part 6) , Lu, wo, wa, nu are carried out in that order to form and solidify a long seamless canal embankment with improved soil mixed with soil and a hardening agent or solidifying agent on the ground surface. A canal construction method a: A canal installation groove that is wider than the width of the canal bank body of the canal to be constructed and deeper than the depth of the canal is planned to be constructed in the ground where the canal is to be constructed. Groove excavation process for long excavation in the direction,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting a plurality of left and right side formwork along the groove wall surface so that they can be detachably attached and fixed to the ground.
D: In the construction section where the section Ki or a part of one or more sections thereafter is added, the channel embankment to be molded and solidified in the channel installation groove after the step of installing the side formwork of c. Multiple grooves of core formwork with a predetermined height and a predetermined width d at the intermediate position of the side formwork rows installed on the left and right sides by stacking one or more stages to form a recess forming a water channel of The process of installing core formwork, which forms a core formwork row by arranging them in a row along the direction.
E': _In the section Ki of the section Ki having the predetermined length L2 along the groove of the channel installation groove, or in the section where a part of the section in the subsequent one or more construction order is added, the section of c. The side frame rows formed by installing a plurality of the side frame rows on the left and right groove wall surfaces of the waterway installation groove in the side frame installation process, and the left and right side frame rows in the core frame installation process of the d. In the section of length L1, which is the pre _- seam section of the section Ki in which the two form sets with the plurality of core form sets of the predetermined height arranged in the middle position in the groove direction are installed, this and this In addition to the partial input of the improved soil in the successor section of the section Ki _-1 before the overlap, the improved soil is input in multiple times so as to be sufficiently filled to the planned height of the embankment, and each time it is input. The upper surface of the improved soil is compacted, and the space between the side frame row and the core frame row is sufficiently filled up to the planned embankment height in the intermediate section of section Ki length _L0 . The improved soil is added in a plurality of times, and the upper surface of the improved soil is _{compacted each} time the improved soil is added. After construction, the improved soil was poured into the successor section of section Ki so that the height gradually decreased in the groove direction at a height lower than the height of the embankment, and the successor section of length L1 was _an unfinished embankment. The process of constructing the waterway embankment of the section Ki, which remains at the height of
F': After the process of constructing the waterway embankment in the section Ki of the section E', if the side frame sequence and the core frame sequence are not installed in the next section Ki _{+ 1} , the steps c and d are repeated. In the section Ki _{+ 1} , a side frame row and a core frame row are installed, and then the length L ₁ of the previous joint section and the length L ₀ of the intermediate section of the next section Ki ₊₁ are the same as in the process of the above-mentioned e'. Filling and charging of improved soil at L ₀ + L ₁ to construct a channel embankment, and the remaining succession section is only low input so that the height of the improved soil to be input is gradually reduced in the direction of the ditch. The process of constructing the canal embankment as an unfinished embankment is carried out, and in the following section Ki ₊₂ , which is increased by 1 to the construction order i ₊ 1, the canal embankment is similarly added and compacted and the unfinished improved soil is added. The process of extending the waterway embankment to extend the body for a long time,
Le: If the canal formwork is formed and solidified after or during the process of extending the canal embankment, the side formwork with the ground remains in the canal formwork while the core formwork is left inside the canal embankment. When the space of the side formwork trace is generated by releasing the fixation and pulling out from the waterway installation groove, a grout or cement-based solidifying agent is injected from the ground surface into the generated space to fill the space with solidified material, and the waterway is described. The process of strengthening the formwork, which firmly constructs the outside of the formwork in the ground.
W: The recess formed by demolding the core mold from the canal embankment, which was constructed for a long time by the steps of c, d, e', and f'and the improved soil of the canal embankment was solidified. The step of forming a recess as a water channel through which water flows in the channel body,
W: The improved soil is poured into the bottom of the recess formed in the waterway embankment in the step of forming the recess to form a bottom of the channel by pouring a predetermined thickness into the bottom of the recess, and the remaining recess space is used as a channel. Waterway construction process,
N: A process of connecting a water channel that connects the water channel of the constructed water channel embankment to another water system water channel at the water channel connection portion upstream and downstream. The structure is such that the ground contact portion to be grounded to the ground upper surface of the side formwork is provided so as to project in the horizontal outward direction from the upper part of the side formwork. The waterway construction method 8) demolded from the above 1) to 6) described above, in which a separate pile is penetrated through the ground contact portion and driven deep into the ground so that the side formwork can be quickly attached to the ground. The core formwork and the demolded side formwork were reused as the core formwork / side formwork in the section Kj of the later construction order j to reduce the number of formwork used, 1) to 7 above. ) Any of the described waterway construction methods 9) When the core formwork is installed at the bottom of the waterway installation groove at the intermediate position of the left and right side formwork, the position of the lower part of the core formwork is fixed. A plurality of anchor members are driven into the ground at the bottom of the groove at the lower peripheral edge of the core formwork so that the installation position of the core formwork does not move during the waterway construction work so that an accurate waterway can be constructed. The waterway construction method described in any of the above 1) to 8) 10) The waterway installation groove at the place where the waterway to be constructed is curved also changes with the same curvature, and the left and right side formwork are also used. Can be arranged in a plane so as to be curved with the same curvature, and the core form can be arranged in a plane with the same curvature so as to be at an intermediate position between the left and right side formwork to form a curved portion of the water channel. 11) The canal construction method according to any one of 1) to 9) described above. For the canal construction method according to any one of 1) to 10), the formwork is installed along the left and right groove wall surfaces of the canal installation groove. A side formwork with a predetermined width of _l0 ,
The side formwork has a ground contact portion that touches the upper surface of the ground where the channel installation groove is excavated, a mountain-shaped rising portion that rises from the groove side end of the ground contact portion and extends in the groove direction, and a groove of the rising portion. The waterway extends from the side tip to the bottom of the waterway installation groove and defines the outer left and right surfaces of the waterway embankment, and the front and rear end positions of the width _l0 of the formwork side surface. It has front and rear plate-shaped partition plates that are bent until it touches the side surface of the installation groove.
Further, the grounding portion has a structure in which a pile hole for driving a pile for fixing the formwork to the ground is provided. Side formwork 12) The side formwork is integrally molded with a material made of FRP. It is in the side formwork described in 11) above.

According to the present invention, the side formwork and the core formwork to be installed in the excavated waterway installation groove are prepared by manufacturing a high-strength resin formwork such as FRP of a certain shape at the factory, and the left and right side surfaces. The formwork can be easily fixed to the ground of the groove by staking, etc., and the formwork can be set by simply installing the core formwork in the middle position of the left and right side formwork, so the left and right face plates can be set as before. There is no need to assemble the two sets on-site using the support members, which can be greatly reduced compared to the number of steps required for this conventional formwork setting, and moreover, a hardener or solidifying agent is applied to the ground soil in the waterway embankment. Since the improved soil mixed with the formwork is used, it is cheaper than the formwork and the specific gravity can be as low as 1.4 to 1.5, so the construction material cost can be greatly reduced and the created formwork canal. The weight of the body is also lightened, and the occurrence of uneven subsidence is reduced. Further, the waterway embankment body of the present invention is prepared for each section, but by overlapping the pre-seam section and the successor section of the section with the input and compaction of the improved soil, the section is seamless and continuous. It enables the construction of embankments and has the excellent advantage of less water leakage in the waterways. Further, since it is not necessary to assemble the formwork and support the strength of the formwork by using the face plate at the site, the man-hours for the formwork and setting can be greatly reduced, and the cost and the construction period can be shortened. Although ready-mixed concrete is used, since the ready-mixed concrete injection is closer to the inside of the groove for installing the ready-mixed concrete, it is easy to set the ready-mixed concrete pump truck and pipe the pumping pipe for the ready-mixed concrete injection work.

Furthermore, in the invention in which the core formwork can be stacked in multiple stages to make it taller, and the work of adding and compacting the improved soil for each stacking is performed, the scaffolding member can be placed on the top of the core formwork. Or, it becomes a load receiving member for the installation of heavy cargo handling equipment, and facilitates the movement of workers and the temporary lifting place for compaction equipment.
Further, since the conventional large mold framework is not required, the excavation width of the channel groove can be shortened, the excavation volume can be reduced to less than half, the sheet pile driving can be eliminated, and the construction can be greatly simplified.

FIG. 1 is a process explanatory diagram showing steps a, b, and c common to the first, second, and third embodiments. _FIG . ₂ shows the section allocation of sections K1, K2, K3 _, ... It is explanatory drawing of the section setting process of b which shows the overlap state of the construction area. FIG. 3 is an explanatory diagram showing a plan arrangement state of the side formwork and the core formwork common to the first to sixth embodiments. FIG. 4 is a process explanatory diagram showing the process of setting the core formwork and charging / compacting the improved soil in Examples 1 and 4. FIG. 5 shows the two-time input of the improved soil in the pre-seam section and the successor section in Examples 1 and 4, the subsequent compaction (molding) work, and the one-time input of the improved soil in the intermediate section. It is explanatory drawing which shows the process of compaction (molding). FIG. 6 is an explanatory diagram showing a process of core demolding common to Examples 1, 2, and 3. FIG. 7 is an explanatory diagram showing the steps of removing the side formwork of Examples 1, 2 and 3 and injecting ready-mixed concrete, and the completed state of the water channel in the solidified state. FIG. 8 is a cross-sectional view of the side formwork and the core formwork used in Examples 1 to 6. FIG. 9 is an explanatory diagram showing the steps a, b, and c of Examples 4, 5 and 6. FIG. 10 is an explanatory diagram showing the molding of the improved soil of the two-stage type of charging and compacting the improved soil for each stage of the core formwork of Examples 2 and 5. FIG. 11 shows the installation state of the side formwork and the one-stage core formwork showing the two steps of adding and compacting the improved soil in Examples 3 and 6, and the process of filling and compacting the improved soil. It is a figure. FIG. 12 is an explanatory diagram showing a plan arrangement state of the side formwork and the two-tiered stacking core formwork and the work process thereof in Examples 2, 3, 5, and 6. FIG. 13 is an explanatory diagram showing two stages of improved soil and compaction in the pre-seam section and the successor section of each section of Examples 2, 3, 5, and 6. FIG. 14 is an explanatory diagram showing a process of demolding the core formwork of Examples 1, 2 and 3 and adding and bottoming out the improved soil. FIG. 15 is an explanatory diagram showing a process of removing the side formwork of Examples 1, 2 and 3 and injecting ready-mixed concrete. FIG. 16 is an explanatory diagram showing an input filling and compaction process for each stage of improved soil for forming a channel embankment using the core form of the two-stage stack of Example 5. FIG. 17 is an explanatory diagram showing a process of removing the side formwork and injecting ready-mixed concrete in Examples 4, 5 and 6. FIG. 18 is an explanatory diagram showing a process of demolding the core formwork of Examples 4, 5 and 6 and adding and bottoming out the improved soil. FIG. 19 is a plan view showing a canal and a canal embankment in a portion where the canal embankment is curved. FIG. 20 is a cross-sectional view showing the shapes of the canal embankment, the side formwork, and the core formwork along the XY lines of FIG. FIG. 21 is an explanatory diagram showing a conventional method for constructing a concrete canal levee body. FIG. 22 is an explanatory view showing the planar arrangement of the left and right embankment forming formwork in the conventional concrete canal embankment.

In the present invention, the core formwork is first demolded to bottom out the water channel, then the outer side formwork is demolded, and ready-mixed concrete, ground, etc. are poured into the space after the side formwork is demolded. The inventions of claims 1, 2 and 3 in the form of the procedure of the process and the side formwork are first removed while the core formwork is left in the waterway embankment, and the grout and ready-mixed concrete flow into the space. The inventions of claims 4, 5 and 6 are in the form of a procedure in which the core mold is demolded and bottomed out after the ground / ready-mixed concrete has solidified. Both are included in the invention of the present application.

Moreover, even in the invention of the above-described embodiment, as in the inventions of claims 1 and 4, the core formwork having a predetermined height is a one-stage formwork having a predetermined height, or a side-mounted core formwork having a predetermined height in a plurality of stages. A one-time injection method in which the improved soil is collectively injected, filled, and compacted in a deep space of a predetermined height between the side formwork and the core formwork of a predetermined height by installing it in the middle position of the frame. There is a form. When the lowermost core formwork is installed so that the core formwork can be stacked as in the inventions of claims 2 and 5, the improved soil is poured and filled up to the height of the lowermost core formwork. After compacting, the core formwork of the next stage is stacked, the improved soil is charged and filled by the height of the stack, and then the compaction work is repeated up to the number of stages to charge the improved soil to the specified height. -There is a form of input filling and compaction method for each core stack that is filled and compacted. The latter method of charging, filling, and compacting each stack is preferable because the improved soil can be sufficiently compacted and the canal embankment after solidification of the strongly improved soil can be made stronger. Further, the former one-time injection method is mainly adopted when the water depth of the waterway is shallow. In the case of a deep water channel, the latter core formwork can be stacked, and the split loading and compaction method for each stacking or the multiple loading and compaction method described below is adopted as in claims 3 and 6. Will be done.

Further, in the inventions of claims 3 and 6, the one-time charging and compaction method as in the inventions of claims 1 and 4 and the stacking type core form as in the inventions of claims 2 and 5 are placed in the lowermost stage. In addition to the charging filling compaction method for each core stack, the improved soil is charged and the upper surface is compacted each time the child formwork is stacked one or two stages, and the above method is eclectic. As a method of, after arranging a core formwork of a predetermined height at an intermediate position, the improved soil is poured into the space between the core formwork and the side formwork in a plurality of times until the predetermined height is reached. Then, there is a method of compacting the upper surface of the improved soil charged at each loading a plurality of times, which is the embodiment of the inventions of claims 3 and 6.

Further, in the present invention, the lengths of L ₁ in the pre-seam section, L ₀ in the intermediate section, and L ₁ in the successor section are 2 L ₁ + L ₀ = L ₂ , and the work sections K ₁ , K ₂ , and so on. It is divided into K ₃ , ..., and the sections K ₁ , K ₂ , K ₃ , ... are divided along the groove of the waterway groove, and the construction is carried out in order i. L ₁ and the length L ₁ of the successor section of the previous section are overlapped in the same section of L ₁ . In the successor section of the previous section Ki, only a part of the improved soil is put in, and it becomes the previous joint section of the next section Ki ₊₁ . The improved soil can be put in, filled, and compacted without any need, and a canal embankment body can be constructed for a long time by the improved soil with seamless and continuous water leakage. Also, if the side formwork / core formwork used in the front work area is removed and then reused in the rear work area, the number of side formwork / core formwork required for construction can be reduced. can.

(See Example 1 / FIGS. 1 to 8)
Hereinafter, Examples 1 to 6 of the present invention will be specifically described with reference to the drawings.

In each of Examples 1 to 6, a plan is set to set a plurality of construction sections i having a length of 2L ₁ + L ₀ for a canal installation groove having a predetermined width in which the ground is excavated in the direction of the planned canal. do. Each construction zone Ki is divided into a pre-seam construction zone with a length L ₁ to be constructed first, an intermediate construction zone with a long L ₀ in the middle, and a succession construction zone with a length L ₁ which is the tip of the construction zone Ki. Then, the construction zone is set so that the previous joint construction zone of the construction zone Ki having a length L ₁ and the successor construction zone of the previous construction zone Ki _-1 with a length L ₁ overlap. The predecessor construction area of the construction area Ki and the successor construction area of the previous construction area Ki _- 1 overlap, and the improved soil should be gradually reduced to a height below the specified height in the construction of the successor construction area of the construction of the previous construction area Ki _-1 . Only a part of the amount is charged into the soil, and the height is gradually reduced in the groove direction. In the construction of the previous joint construction area of the next construction area Ki, the improved soil is poured until it reaches a predetermined height and compacted. Alternatively, it may be compacted at the same time as the compaction of the improved soil introduced in the next intermediate section. In the intermediate section of the section Ki with a length L ₀ , the improved soil is put in to a predetermined height and compacted, and in the successor section of the section Ki with a length L ₁ , the height of the improved soil gradually decreases as described above. The successor section and the previous section, which are at the same position in the front and rear sections, are improved to the specified height by the front and rear sections Ki so that only a part of the soil is added and the height of the added improved soil is gradually lowered. Add soil and compact it. Therefore, in Examples 1 to 6, the canal embankment body can construct a seamless canal. Therefore, the problem of water leakage can be solved from the conventional seam.

(Explanation of Features of Examples 1 to 6 / Example 1 / Refer to FIGS. 1 to 3, 4 to 8)
Example 1 shown in FIGS. 1 to 8 is an embodiment of the invention according to claim 1 of the present invention, which is suitable for constructing a water channel having a shallow water depth, and is suitable for forming a water channel embankment as shown in FIG. The improved soil is poured into the space between the long outer left and right side formwork and the long core formwork placed in the middle of the left and right at one time, and after the filling is completed, the ground surface is compacted, and then Fig. 6 As shown in Fig. 7, the core formwork was first demolded, and the improved soil was poured into the recesses and bottomed out to form a water channel, and then the outer side formwork was demolded as shown in FIG. It is a seamless water channel structure in which ready-mixed concrete, which is a grout cement-based solidifying agent, is injected into the outer space to hold the outside of the water channel formwork of the improved soil with concrete solidified material.

(See Example 2 / Seamless Figures 1 to 3, 9, 10, 12 to 15)
Example 2 shown in FIGS. 1 to 3, 9, 10, 12 to 15 is an example of the invention according to claim 2 of the present invention. In the second embodiment, after the outer left and right side formwork is installed, as shown in FIG. 10, the lower core formwork of the upper and lower two-tiered stacks that can be set to a predetermined height is provided at the intermediate position of the same side surface formwork. After arranging multiple rows in the groove direction, as shown in FIG. 10, the first improvement soil up to the height of the lower core formwork and its addition into the space between the side formwork and the core formwork. After compaction on the surface of the improved soil, the upper core formwork was stacked, and the improved soil was added twice on the improved soil that was compacted the first time, and the upper surface of the improved soil (predetermined height). By adding improved soil for each core stack to compact the upper surface of the formwork and compacting the upper surface of the formwork, a channel formwork shown in FIG. 13 at a predetermined height is formed, and then the middle as shown in FIG. Demold the child formwork first, put the improved soil into the recess to bottom out, then demold the outer left and right side formwork as shown in FIG. 15 and grate or cement in the space. This is an example of injecting ready-mixed concrete as a system solidifying agent and holding the outside of the waterway embankment with concrete solidified material.

(See Example 3 / FIGS. 1 to 3, 11 to 15)
Examples 3 shown in FIGS. 1 to 3 and 11 to 15 are examples of the invention according to claim 3 of the present application. In the third embodiment, as shown in FIG. 11, the core formwork in which the outer left and right side formwork are arranged in a long row and then stacked to a predetermined height is the lowermost core in the middle position of the left and right side formwork. After installing the formwork, the improved soil is poured in multiple times, and the upper surface of the improved soil is compacted multiple times each time it is poured, so that the improved soil can be charged and compacted to the specified height. As shown in FIG. 13, a channel embankment body made of improved soil is formed, and then, as shown in FIG. 14, the core formwork is demolded and further improved soil is put into the recessed space behind the core formwork. After bottoming out, as shown in FIG. 15, the outer side formwork is demolded, and the ready-mixed concrete of grout or cement-based solidifying agent is injected into the demolded space to the outside of the channel embankment of the improved soil. This is an example of protecting the formwork with concrete solidified material.

(Examples 4, 5, 6 / FIGS. 9, 16-18)
Examples 4, 5 and 6 are examples of the invention of claims 4, 5 and 6 of the present application, and in the previous embodiments 1, 2 and 3 of Examples 1, 2 and 3, the core formwork is used. Instead of demolding first, as shown in FIG. 17, the order of demolding is the demolding of the outer side formwork first, and the ready-mixed concrete of the grout cement-based solidifying agent is injected to the outer concrete. This is an example in which the core formwork is demolded as shown in FIG. 18, and the improved soil is poured into the recesses of the demolding to bottom out to form a water channel after protecting the outside with a solidified material. In Examples 4, 5 and 6, the procedure for adding and compacting the improved soil is the same as in Examples 1, 2 and 3, but the demolding of the side formwork and the core formwork is reversed. This is an example of demolding in the procedure. However, the results of constructing canals and canals of improved soil protected by seamless concrete solidification are almost the same, and although the process procedure is different, almost the same canals and canals are constructed. It can be done.

(Explanation of Codes of Examples 1 to 6)
In Examples 1 to 6, the same reference numerals are given to the same configurations and common configurations.
G ₁ is the waterway construction method of Example 1, G ₂ is the waterway construction method of Example 2, G ₃ is the waterway construction method of Example 3, G ₄ is the waterway construction method of Example 4, and G ₅ is Example 5. The waterway construction method of G6 indicates the waterway construction method of Example ₆ . GR is the ground on a flat surface for constructing the waterway of the present invention, and _SM is a waterway installation groove having a groove depth of about 650 mm and a left and right groove width of 9000 mm, which is excavated wider than the planned waterway and deeper than the planned waterway. Is the groove wall surface of the channel installation groove, ST is the channel body made of the improved soil formed by the present invention, SR is the channel constructed by the channel embankment, and KS is the groove wall surface SM ₀ on the left and right of the channel installation groove SM. The side frame of an integrally molded FRP product with a mounting height of approximately 750 mm, KS ₁ is a horizontal grounding part that is long in the groove direction and is provided so as to project horizontally from the top of the side frame, and KS ₁₁ is the same ground. The side frame KS is detachably attached to the ground GR by driving a stop pile TK into the two pile holes provided in the portion. KS ₂ is a mountain-shaped rising portion that rises from the groove side end of the grounding portion KS ₁ of the side formwork KS, and KS ₃ is a planar shape that is bent from the groove side of the rising portion KS ₂ and hangs downward by about 650 mm. The side surface portion KS ₄ that serves as the formwork surface is a partition plate that is bent at right angles to the groove wall surface SM ₀ at the front and rear ends of the side surface portion KS ₃ , and has the strength to withstand the pressure from the improved soil. It is generated in ₃ and stops the entry of the improved soil in the groove wall surface SM ₀ direction and the movement in the groove direction inside the side surface portion KS ₃ . TK is a pile that is driven into the pile hole KS ₁₁ of the grounding part KS ₁ of the side formwork KS to fix the side formwork KS to the ground GR, and KN is a two-stage stacking type box-shaped core type with upper and lower stages. KN ₁ is a lower core form of KN, KN ₁₁ is a pair of left and right parallel face plates constituting the lower core form KN ₁ , and KN ₁₂ is an upper and lower inside of the same surface plate KN ₁₁ . The horizontal bent part provided at the end, KN ₁₃ is a vertical bent part bent inward at the front and rear ends of the same surface plate KN ₁₁ , and KN ₁₄ is a box-shaped core type provided at the front and rear ends of the face plate KN ₁₁ . A connecting plate that connects the partition plate NW, which is the front and rear face plates of the frame KN ₁ , to the left and right vertical bent portions KN ₁₃ provided on the same side, and the KN ₁₅ is the left and right vertical of the face plate KN ₁₁ via the connecting plate KN ₁₄ . The set screw that fixes the bent part KN ₁₃ and the partition plate NW, KN ₁₆ is fixed by bolting the horizontal bent parts KN ₁₂ and KN ₂₂ of the lower and upper core formwork KN ₁ and KN ₂ . The connecting bolt, KN ₁₇ , is an anchor member for fixing the core formwork KN driven into the outer periphery of the lower part of the core formwork KN so as not to move, and KN ₂ is the upper core formwork of the core formwork KN, KN ₂₁ . Is a pair of left and right parallel face plates constituting the upper core formwork KN ₂ , KN ₂₂ is a horizontal bent portion horizontally provided at the upper and lower ends of the same surface plate N ₂₁ , and KN ₂₃ is the inside of the upper and lower ends of the same surface plate KN ₂₁ . The KN ₂₄ is a vertical bent portion bent toward the center, and the left and right vertical partition plates NW serving as front and rear face plates of the box-shaped core formwork KN ₂ provided at the front and rear ends of the face plate KN ₂₁ are provided on the same side. The connecting plate, KN ₂₅ , which connects to the bent portion KN ₂₃ , detachably connects the vertically bent portion KN ₂₃ and the partition plate NW, which are bent left and right inside the face plate KN ₂₁ , via the connecting plate KN ₂₄ . The set screw that connects the lower core formwork KN ₁ and the upper core formwork KN ₂ in a stacked state, KN ₂₆ is the core core lid of the upper and lower core formwork KN ₂ and KN ₁ . Ki (i = 1, 2, 3, ...) Is the construction zone of the construction order i, and is composed of the previous joint construction zone Kif, the intermediate construction zone Kim, and the successor construction zone Kib, and has a total length of 5500 mm. Kif has a dimension of 1500 mm in the pre-seam section of the section Ki, Kim has a size of about 2500 mm in the intermediate section of the section Ki, and Kib has a dimension of about 1500 mm in the successor section of the section Ki. SS is an improved soil having a specific gravity of about 1.4 to 1.5 kneaded by mixing grout or a cement-based solidifying agent into the soil. _K0 is the unconstructed ground at the upstream or downstream channel connection part of another construction that connects the upstream and downstream of the channel SR constructed in the present invention to the external channel, and CON is the ready-mixed concrete of grout or cement-based solidifying agent. , COB is a solidified concrete.

(Explanation of construction of Example 1 / see FIGS. 1 to 8)
The construction of the _first embodiment (G1) shown in FIGS. 1 to 8 will be described in detail.
In the first embodiment, the following (a) :, (a) :, (b) :, (c) :, (d) :, (e) :, (f) :, (g) :, (chi) :, (ri) :, (nu): Construction is carried out in the process.

(A) Design: The vertical dimension and width of the canal ST to be constructed on the ground GR (base 700 mm and top 600 mm), and the canal SR provided in the center of the canal SR have a width of 300 mm and a depth of 500 mm. By designing, the dimensions of the channel installation groove SM to be excavated in the ground GR are determined to have a groove width of 9000 mm and a depth of 650 mm (see FIGS. 1 (a) and 8).

(A) Step of excavating the channel installation groove: Next, as shown in FIG. 1 (b), the channel installation groove SM is excavated along the planned channel with a width of 9000 mm on the left and right and a depth of 650 mm for a long ground GR.

(B) Section setting process: The construction zone Ki (i is the construction order 1, 2, 3, ...) Is set in the direction of the channel installation groove SM. K ₀ is the upstream channel connection part of the construction zones K ₁ , K ₂ , ..., And each construction zone Ki is a successor to the previous joint construction zone of 1500 mm length L ₁ , the intermediate construction zone of 2500 mm length, and the successor of 1500 mm length L ₁ . It is composed of a work area and has a total length of 5500 mm with a total length of 2 L ₁ + L ₀ = L ₂ . Moreover, the predecessor construction zone of the construction zone Ki and the successor construction zone of the previous construction zone Ki _{-1 overlap} with each other with the same length L1. In addition, the construction zone Ki in the construction order i = ₁ , 2, 3, ... is set as a waterway installation groove so that the successor construction zone of the construction zone Ki and the previous joint construction zone of the subsequent construction zone Ki ₊₁ overlap with the same length L1. Set to SM. An upstream canal connection K0 is provided on the most upstream side, and _a downstream canal connection _{Kend (} not shown) is provided on the most downstream side. After constructing the waterway SR, the connection with the upstream and downstream waterways is made at the upstream waterway connection part _K0 and the downstream waterway connection part Kend (construction of the connection part is omitted) (see Fig. 2). ..

(C) Left and right side formwork installation process: _The grounding part _KS1 of the left and right side formwork KS shown in FIG. Two separate round bar-shaped piles TK are driven deep into the ground and fixed to the two pile holes KS ₁₁ in KS ₁ . One side formwork KS is fixed to the ground GR with two piles TK (see FIG. 1 (c), FIGS. 3, 4 and 8).

(D) Core formwork installation process: After installing a large number of side formwork KS on the left and right sides of the outer groove in the groove direction, stack them in two stages at the intermediate position as shown in FIG. The assembled core formwork KN with a height of 750 mm is arranged in a long line in the groove direction. The horizontal bent portion KN ₁₂ at the lower end of the lower core formwork KN of the core formwork KN is in contact with the bottom surface of the channel installation groove SM, and the upper and lower core formwork KN ₁ and KN _{2 are} the same. The horizontal bent portions KN ₁₂ and KN ₂₂ at the lower end and the upper end are opposed to each other, and the two-tiered stack is connected by the connecting bolt KN ₁₆ . At the front and rear ends in the groove direction, the partition wall plates NW provided at the front and rear ends of the lower and upper core formwork KN ₁ and KN ₂ are connected by the connecting plates KN ₁₄ and KN ₂₄ of the front and rear core formwork KN. It is in close contact in the front-back direction. Then, the upper opening of the upper core formwork KN ₂ is closed by the core lid KN ₂₆ (see FIGS. 4 and 8). _In this way, the side formwork KS and the box _- shaped core formwork KN are arranged in _rows in the construction areas K1, K2, and K3.

(E) Injection and compaction process of improved soil: After installing the above-mentioned two-stage connected core formwork KN at the middle position of the left and right side formwork KS fixed to the left and right groove wall surface SM ₀ , the construction section K ₀ The improved soil SS, which is kneaded by adding a hardening agent or a solidifying agent to the soil, is added to the former joint construction area Kif that overlaps with the construction area K1 so that the _upper surface is not gradually lowered in the groove direction at an intermediate height, and then the construction area. _In the construction of K1, the improved soil SS is further poured into the Kif of the previous joint construction section of the construction section K1 to the height of the _upper surface of the canal embankment, and the upper surface is compacted. Alternatively, without this compaction, the improved soil SS is poured into the intermediate section Kim of the section K1 to the height of the _upper surface of the channel embankment body, and then the upper surface of the improved soil SS introduced by the intermediate section Kim and the previous joint section Kif is tightened. Harden. Furthermore, in the successor construction area _Kib of construction area K1, the improved soil SS is added so that the input height gradually decreases in the groove direction at about half the height of the canal embankment.

(F) Process of extension of waterway embankment: After that, if there is no side formwork KS and core formwork KN in the following construction _sections K2, K3 _, K4, in the above steps (c) :, ( _d ): Install the formwork. The improved soil is poured in the previous joint construction zone Kif of the next construction zone K ₂ , and the soil is poured until it reaches the height of the canal embankment, and the same construction zone K is compacted or not compacted during or after the loading. The improved soil SS is put into the intermediate construction section Kim of No. ₂ , and after the height of the canal embankment is put in, the upper surface of the improved soil put in the intermediate construction section Kim and the improved soil SS put in the previous joint construction section Kif is compacted. Then, the improved soil SS is charged into the successor construction area _Kib of the construction area K2 so as to be gradually lowered by about half in the groove direction _, and the _next construction area K3 is charged and compacted with the improved soil SS in the same manner as the construction area K2. By repeating the steps K ₄ , K ₅ , K ₆ , ..., A channel embankment ST with seamless improved soil SS is formed continuously for a long time between the side formwork KS and the core formwork KN. (See FIGS. 2, 3, 4 (d), (e), FIG. 5).
(G) Demolding process of core formwork KN: Improvement of channel embankment ST formed between side formwork KS and core formwork KN After the soil SS has hardened, the upper and lower two-tiered cores Demold the formwork KN (see FIG. 6).

(H) Waterway construction process: By removing the core formwork KN from the hardened waterway embankment ST, a recess is generated in the waterway embankment ST. An appropriate amount of the improved soil SS is put into this recess, the improved soil SS put into the bottom of the recess is compacted (bottomed out), and the recess is used as a water channel (see FIGS. 6 (f), 6 (g), 7). ).
The above (a) :, (a) :, (b) :, (c) :, (d) :, (e) :, (f) :, (g) :, (chi): work is specified. A channel SR of a predetermined length is constructed by repeating in _each of the number of construction sections K1, K2, _{K3 ,} ....

(I) Step of levee body strengthening construction: After the waterway SR is constructed, the outer left and right side formwork KS are demolded. A grout or a ready-mixed concrete CON, which is a cement-based solidifying agent, is put into the space of the demolded side formwork KS to form a concrete solidified COB. As a result, concrete solidified COB is interspersed between the canal ST and the ground of the improved soil SS, firmly holding the canal ST, and the inflow of water from the ground into the canal ST.・ The water pressure is not applied.
In this way, the canal ST of the improved soil protected by the concrete solidified COB and the canal SR at the center thereof are constructed (see FIGS. 7 (h), (i), (j)).

(N) Waterway connection process: When the waterway embankment ST and the waterway SR are constructed, the connection work between the waterway and the waterway where the external waterway on the upstream / downstream side is constructed is the upstream waterway connection part _K0 / downstream waterway connection part. It is done on the ground of Kend (this connecting channel is omitted because it is a construction according to the geographical conditions).

(Construction of Example 2)
Example 2 shown in FIGS. 1 to 3, 9, 10, 12, 13, 14, and 15 is performed in the steps of a, b, c, yo, ta, re, chi, ri, and nu. An intermediate core formwork KN having a core formwork KN of Example ₁ connected in _two stages, upper and lower, using a one-stage core formwork KN at the height of a canal embankment in which KN1 and KN2 are integrated. In contrast to the example in which the improved soil SS in the construction area Kim is compacted to the specified canal embankment height with a single injection, the core formwork KN in Example 2 is a core formwork that can be stacked in two stages, upper and lower. Use KN ₁ and KN ₂ . After installing the lower core formwork KN ₁ in the waterway installation groove SM, the improved soil SS is poured up to this height, then the improved soil SS put in is compacted, and then the upper core formwork KN ₂ is placed in the lower core formwork. Stacked on KN ₁ , connected vertically with connecting bolt KN ₁₆ , and integrated, and then put the improved soil on the improved soil compacted at the height of the lower core formwork KN ₁ , and put the improved soil in the upper middle. Add the improved soil SS to the height of the child formwork KN ₂ and then compact. In this way, the core formwork KN, which is stacked in two upper and lower stages, is repeatedly charged and compacted with the improved soil SS for each stage, and the improved soil SS is compacted to the height of the upper and lower two stages to prepare the improved soil. Repeat until the height of the canal embankment is reached. This process is shown in FIGS. 10 (d'), (e'), (e "), and (e''').

In the second embodiment, by charging and compacting the improved soil SS for each of the upper and lower two-stage core formwork KN, the charged improved soil can be reliably compacted and the channel embankment is improved. It is possible to construct a waterway embankment ST and a waterway SR with high soil strength and high water leakage. Since the other steps are the same as those in the first embodiment, the description thereof will be omitted. The steps of (a), (b), and (c) of Example 2 are the same as the steps of (a), (b), and (c) of Example 1. The difference in the process is the difference between the upper and lower stages of the core formwork KN and the work of charging and compacting the improved soil for each stage.
In the second embodiment, it becomes easy to install a workbench and scaffolding for compaction on the upper surface of the core lid KN ₂₆ at the top of the core formwork to be stacked, and the workability is good.

(Construction of Example 3 / see FIGS. 1 to 3, 11 to 15)
Steps of a, b, ha, ni, ho', he', to', chi', ri', nu in Example 3 and a, b, ha, ni, ho, he, to, in Example 1. The difference between the processes of J, Li, and Nu is that the improved soil is added once in Example 1 while using the one-stage core mold KN with the same predetermined height, and the upper surface of the improved soil is added once. In Example 3, the improved soil SS is added in a plurality of times, and the upper surface of the improved soil SS added for each addition is compacted to ensure the compaction. There is a difference in points. In Example 3, the canal embankment ST and canal SR formed by the formed improved soil SS become denser to ensure high strength and watertightness because the improved soil is compacted each time it is added. Further, when the improved soil of the channel embankment ST is solidified, the core formwork KN is demolded as shown in FIG. 14, and the improved soil SS is put into the recess to bottom out. After that, the side formwork is demolded in the same manner as in Example 1, and the ready-mixed concrete CON is injected into the space to form a concrete solidified COB on the outside of the waterway bank ST / waterway SR. Increase the strength (see FIG. 15).
The steps of charging and compacting in a plurality of times according to Example 3 are shown in FIGS. 11 (d) and 11 (e). Other than that, a long seamless embankment / canal is constructed as in the first embodiment.

(Construction of Examples 4, 5 and 6 / see FIGS. 9, 16-18)
In Examples 4, 5 and 6, the core formwork KN used for charging / compacting the improved soil is the same as in Examples 1, 2 and 3. The difference between Examples 4, 5 and 6 and Examples 1, 2 and 3 is that the procedure for removing the mold is that in Examples 1, 2 and 3, the core form KN is first removed and placed in the recess. After additional soil is added and bottomed out, the outer side formwork KS is demolded, and grout or cement-based solidifying agent ready-mixed concrete is injected into the space to put the concrete solidified material on the outside of the channel embankment first. Form. On the other hand, in Examples 4, 5 and 6, the demolding of Examples 1, 2 and 3 is first demolded from the outer side formwork KS, and the ready-mixed concrete of grout or cement-based solidifying agent is injected into the space first. To build a concrete solidified material. During the construction, the core formwork KN exists in the channel embankment ST, so that the core formwork KN in the channel embankment ST is in the meantime against the pressure from the heavy concrete solidified COB. The strong core formwork KN acts to prevent deformation, cracks, cracks, etc. of the embankment ST, prevents deformation, cracks, and displacement of the channel embankment ST, and the strength of the canal embankment ST is high and water leakage. Can be prevented.
Formwork demolding is performed first on the outer side formwork KS, and after injecting a ready-mixed concrete CON of a grout or cement-based solidifying agent into the space to form a concrete solidified COB, the core formwork KN is demolded. The steps of putting the improved soil SS into the bottom of the recess and bottoming out are shown in FIGS. 17 and 18.

Examples 1 to 6 are the construction of a linear water channel SR, but in the construction of changing the direction of the water channel SR to a right angle direction or the like, the curved water channel shown in FIGS. 21 and 22 is provided in the middle of the water channel of the present invention. You can do it freely.

The waterway constructed by the present invention is a waterway for drawing a small amount of water from a large river, a reservoir, a lake, a spring water source, and supplying water to a rice field, a farm, a large-scale farmland, etc. as agricultural water, a large river. Waterways for distributing small and medium-sized water streams for water volume control, waterways that take in water from a distance as a living water source for cities and towns, water supply channels for large-scale farmland, water supply channels for large swimming pools, It is useful for constructing waterways, drainage canals, and sewers that can be used for waterways for middle water supply, waterways for urban greening, etc. required for factories, buildings, and condominiums.

G ₁ Waterway construction method of Example 1 G ₂ Waterway construction method of Example 2 G ₃ Waterway construction method of Example 3 G ₄ Waterway construction method of Example 4 G ₅ Waterway construction method of Example 5 G ₆ Example 6 Waterway construction method GR ground SM waterway installation groove SM ₀ groove wall surface ST waterway embankment SR waterway KS side formwork KS ₁ grounding part KS ₁₁ pile hole KS ₂ rising part KS ₃ side part KS ₄ partition plate TK pile KN core type Frame KN ₁ Lower core formwork KN ₁₁ Face plate KN ₁₂ Horizontal bend KN ₁₃ Vertical bend KN ₁₄ Connecting plate KN ₁₅ Set screw KN ₁₆ Connecting bolt KN ₁₇ Anchor member KN ₂ Upper core form KN ₂₁ Face plate KN ₂₂ Horizontal bending part KN ₂₃ Vertical bending part KN ₂₄ Connecting plate KN ₂₅ Set screw KN ₂₆ Core lid NW Partition plate K ₀ Waterway connection part Ki (i = 1, 2, 3, ...) Formwork Kif Pre-joint Formwork Kim Intermediate formwork Kib Successor formwork SS improved soil CON grunt or cement-based solidifying agent (ready-mixed concrete)
Concrete solidified material that holds the COB canal ST on the outside L ₀ Length of the intermediate section L ₁ Length of the previous and subsequent sections 50 Concrete bottom board 51,52 Canal embankment 53,54 Formwork 530,540 Face plate 550 Spacing member 560 Out-of-form support member Y sheet pile

Claims (12)

The following steps (a), (b), (c), (2), (e), (to), (chi), (li), and (nu) are carried out in the above order, and the soil and the improved soil mixed with the hardening agent or solidifying agent are long on the ground surface. A waterway construction method that constructs a waterway by forming and solidifying a seamless continuous waterway embankment.
B: A groove excavation step in which a canal installation groove having a width wider than the canal embankment width of the canal to be constructed and a dimension deeper than the water depth of the canal is excavated long in the planned canal direction in the ground on which the canal is to be constructed. ,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting multiple left and right side formwork along the groove wall surface so that they can be attached and detached and fixed to the ground.
D: In the section Ki or a section in which a part of one or more sections thereafter is added, it is planned to be molded and solidified in the channel installation groove after the step of installing the side formwork of c. The middle position of the side formwork rows in which the core formwork with a predetermined height and a predetermined width d is installed on the left and right sides by stacking one or more stages to form a recess that becomes a water channel of the waterway embankment. The process of installing core formwork, which forms a core formwork row by arranging multiple rows along the groove direction.
E: _The side surface of the c. The side frame rows formed by installing a plurality of the left and right groove wall surfaces of the water channel installation groove in the mold installation process, and the left and right side mold rows in the core mold installation process of the d. In the section of length L1, which is the pre _- seam section of the section Ki in which the two form sets with the plurality of core form sets of the predetermined height arranged in the middle position in the groove direction are installed, this and this In addition to the partial input of the improved soil in the successor section of the section Ki _-1 before the overlap, the improved soil is charged so as to be sufficiently filled to the planned height of the embankment, and the upper surface of the filled soil is compacted. The improvement is made so that the space between the side frame row and the core form frame row is sufficiently filled up to the planned embankment height in the intermediate section of section Ki length L ₀ without compaction. The soil is charged and the improved soil charged so as to be filled in the intermediate section is compacted from the upper surface thereof, or this and the upper surface of the improved soil introduced in the previous seam section are compacted together to compact the section Ki. A waterway embankment with _a length L1 of the seam section and a length _L0 of the intermediate section was constructed, and in the successor section of the section Ki, the improved soil was placed at a height lower than the height of the embankment in the groove direction. _The process of constructing the waterway embankment of the section Ki, where the length of the successor section of length L1 is left at the height of the unfinished embankment.
F: After the step of constructing the waterway embankment body of the section Ki of the said section, if the side frame sequence and the core form frame row are not installed in the next section Ki ₊₁ the steps of the steps c and d are repeated. A side frame row and a core frame row are set up in the section Ki ₊₁ and then the length L ₁ of the previous joint section and the length L ₀ of the intermediate section in the next section Ki ₊₁ are the same as in the process of E. Filling and charging of improved soil at L ₀ + L ₁ and compacting to construct a channel embankment, and lowering the height of the improved soil to be added to the remaining successor section in the groove direction. Perform the process of constructing the waterway embankment body of the above-mentioned e as an unfinished embankment body, and repeat the injection and compaction of the improved soil and the injection of the unfinished improved soil in the section Ki _{+ 2} which is increased by 1 to the construction order i ₊₁ below. In the process of extending the canal embankment to extend the canal embankment for a long time,
G: When the improved soil of the canal embankment constructed long by the steps of c, d, e, and f is solidified, the recess formed by demolding the core mold from the canal embankment is described. The process of forming a recess to make a waterway through which water flows in the waterway embankment,
H: The improved soil is poured into the bottom of the recess formed in the channel embankment in the step of forming the recess to form the bottom of the channel by pouring a predetermined thickness into the bottom of the channel, and the remaining recess space is used as the channel. Construction process,
Li: If the canal embankment is formed and solidified after or during the process of constructing the canal, the side formwork is released from the ground and pulled out from the canal installation groove to create a space for the side formwork traces. When a formwork occurs, a process of strengthening the formwork, in which a grout or cement-based solidifying agent is injected from the ground surface into the generated space and the space is filled with solidified material to firmly construct the canal formwork in the ground,
N: A process of connecting a canal that connects the canal of the constructed canal embankment to another canal of another water system at the upstream / downstream canal connection portion. The following steps (a), (b), (c), (yo), (re), (chi), (li), and (nu) are carried out in the above order, and the soil and the improved soil mixed with the hardening agent or solidifying agent are used for a long seam. A canal construction method that constructs a canal by forming and solidifying a continuous canal embankment.
B: A groove excavation step in which a canal installation groove having a width wider than the canal embankment width of the canal to be constructed and a dimension deeper than the water depth of the canal is excavated long in the planned canal direction in the ground on which the canal is to be constructed. ,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting a large number of left and right side formwork along the groove wall surface so that they can be attached and detached and fixed to the ground.
Yo: In the section Ki or the section of the previous joint section and the section of the intermediate section after that, one or more sections.
As the core formwork, a stackable core formwork that can be stacked in multiple stages to different heights is used, and the bottom core formwork is placed at the intermediate position between the left and right side molds. A large number of rows are laid on the bottom of the channel groove, then the improved soil is filled up to the height of the bottom core formwork, compacted at that height, and then the next core formwork is stacked and the next stage. The process of putting the improved soil into the space between the core formwork and the side formwork, filling it up to the height of the next core formwork, and then tightening the filled improved soil is the core formwork. By repeating each time the core formwork is stacked and raised, the core formwork is stacked up to a predetermined height, and the space between the stacked core formwork and the side formwork of the predetermined height is improved soil. In the successor section of the section Ki, the improved soil formwork is set to the height of the incomplete embankment so that the height gradually decreases in the groove direction at a low height. And the process of loading and compacting each step of the improved soil,
T: After the step of charging and compacting each stack of Yo, if the side frame row and core mold row are not installed in the next section Ki _{+ 1} , the steps of C and Yo are repeated to the next. A channel embankment was constructed by adding and compacting the improved soil at L ₀ + L ₁ with a length L ₁ of the previous joint section of section Ki ₊ 1 and a length of L ₀ of the intermediate section, and the remaining successor section The waterway embankment construction process was carried out to make the unfinished embankment body so that the height of the improved soil to be added was gradually reduced in the _direction of the _ditch . By repeating the installation of the stacking core mold, the injection and compaction of the improved soil in the pre-seam section and the intermediate section, and the input of the unfinished improved soil in the successor section, the channel embankment is extended for a long time. Body extension process,
Re: When the improved soil of the canal embankment constructed long by the steps of c, yo, and ta is solidified, the recess formed by demolding the core mold from this canal embankment is the canal embankment. The process of forming a recess as a water channel through which body water flows,
H: The improved soil is poured into the bottom of the recess formed in the channel embankment in the step of forming the recess to form the bottom of the channel by pouring a predetermined thickness into the bottom of the channel, and the remaining recess space is used as the channel. Construction process,
Li: After the step of constructing the water channel of Chi, when the side formwork is released from the ground and pulled out from the waterway installation groove to generate a space of the side formwork trace, the generated space is grouted from the ground surface. Alternatively, a process of strengthening the embankment to firmly construct the canal embankment in the ground by injecting a cement-based solidifying agent and filling the space with solidified material.
N: A process of connecting a canal that connects the canal of the constructed canal embankment to another canal of another water system at the upstream / downstream canal connection portion. The following steps (a), (b), (c), (2), (e), (f), (to), (chi), (ri), and (nu) were carried out in the above order, and the soil and the hardening agent or solidifying agent were mixed into the ground on the ground surface. A canal construction method that constructs a canal by forming and solidifying a long seamless continuous canal embankment with improved soil.
B: A groove excavation step in which a canal installation groove having a width wider than the canal embankment width of the canal to be constructed and a dimension deeper than the water depth of the canal is excavated long in the planned canal direction in the ground on which the canal is to be constructed. ,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting multiple left and right side formwork along the groove wall surface so that they can be attached and detached and fixed to the ground.
D: In the section Ki or a section in which a part of one or more sections thereafter is added, it is planned to be molded and solidified in the channel installation groove after the step of installing the side formwork of c. The core formwork having a predetermined height and a predetermined width d is installed on the left and right sides of the side formwork row by stacking one or more stages to form a recess forming a water channel of the waterway embankment. The process of installing core formwork, which forms a core formwork row by arranging multiple rows along the groove direction at intermediate positions.
E': _In the section Ki of the section Ki having the predetermined length L2 along the groove of the channel installation groove, or in the section where a part of the section in the subsequent one or more construction order is added, the section of c. The side frame rows formed by installing a plurality of the side frame installation steps on the left and right groove wall surfaces of the water channel installation groove, and the left and right side frame rows in the core frame installation process of D. This is for the section of length L1 which is the pre _- seam section of the section Ki in which the two form sets are installed with the plurality of core form sets of the predetermined height arranged in the middle position in the groove direction. In addition to the partial input of the improved soil in the successor section of the section Ki _-1 before overlapping with, the improved soil is input in multiple times so as to be sufficiently filled to the planned height of the embankment, and each input is performed. The upper surface of the improved soil is compacted, and the space between the side frame row and the core type frame row is sufficiently filled up to the planned embankment height in the intermediate section of section Ki length _L0 . The improved soil is poured into the improved soil in a plurality of times, and the upper surface of the improved soil is _{compacted each} time the improved soil is added. In addition, the improved soil was poured into the successor section of the section Ki so that the height gradually decreased in the groove direction at a height lower than the height of the bank _body , and the successor section of length L1 was not completed. The process of constructing the waterway embankment of the section Ki that keeps the height of the body,
F': After the process of constructing the waterway embankment in the section Ki of the section E', if the side frame sequence and the core frame sequence are not installed in the next section Ki _{+ 1} , the steps c and d are repeated. In the section Ki _{+ 1} , a side frame row and a core frame row are installed, and then the length L ₁ of the previous joint section and the length L ₀ of the intermediate section of the next section Ki ₊₁ are the same as in the process of the above-mentioned e'. Filling of improved soil with L ₀ + L ₁ to construct a channel embankment by compaction at each injection, and the remaining succession section only lowers the height of the improved soil to be added so as to gradually decrease in the groove direction. In the process of constructing the waterway embankment, which is the _{unfinished embankment} of The process of extending the canal embankment, which extends the canal embankment for a long time by repeating the injection of unfinished improved soil in the successor section,
G': If the improved soil of the canal embankment constructed long by the steps of c, d, e, and f solidifies, the recess formed by demolding the core mold from this canal embankment. Is the process of forming a recess, which is a channel through which water flows in the channel body.
J': The improved soil is poured into the bottom of the recess formed in the channel embankment in the step of forming the recess in the above-mentioned g', and bottomed out to form the bottom of the channel, and the remaining recess space is used as the channel. Waterway construction process,
Li': If the canal embankment is formed and solidified after or during the process of constructing the canal of Chi', the side formwork is released from the ground and pulled out from the canal installation groove to trace the side formwork. When a space is created, a glaut or cement-based solidifying agent is injected from the ground surface into the created space, and the space is filled with solidified material to firmly construct the canal formwork in the ground. ,
N: A process of connecting a canal that connects the canal of the constructed canal embankment to another canal of another water system at the upstream / downstream canal connection portion. The following steps (a), (b), (c), (2), (e), (le), (w), (wa), and (nu) are performed in that order, and the soil and the improved soil mixed with the hardening agent or solidifying agent are long on the ground surface. A waterway construction method that constructs a waterway by forming and solidifying a seamless continuous waterway embankment.
B: A groove excavation step in which a canal installation groove having a width wider than the canal embankment width of the canal to be constructed and a dimension deeper than the water depth of the canal is excavated long in the planned canal direction in the ground on which the canal is to be constructed. ,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting multiple left and right side formwork along the groove wall surface so that they can be attached and detached and fixed to the ground.
D: In the construction section where the section Ki or a part of one or more sections thereafter is added, the channel embankment to be molded and solidified in the channel installation groove after the step of installing the side formwork of c. Multiple grooves of core formwork with a predetermined height and a predetermined width d at the intermediate position of the side formwork rows installed on the left and right sides by stacking one or more stages to form a recess forming a water channel of The process of installing core formwork, which forms a core formwork row by arranging them in a row along the direction.
E: _The side surface of the c. The side frame rows formed by installing a plurality of the left and right groove wall surfaces of the water channel installation groove in the mold installation process, and the left and right side mold rows in the core mold installation process of the d. In the section of length L1, which is the pre _- seam section of the section Ki in which the two form sets with the plurality of core form sets of the predetermined height arranged in the middle position in the groove direction are installed, this and this In addition to the partial input of the improved soil in the successor section of the section Ki _-1 before the overlap, the improved soil is charged so as to be sufficiently filled to the planned height of the embankment, and the upper surface of the filled soil is compacted. In the intermediate section of section Ki length L ₀ without compaction, the improved soil is filled so that the space between the side frame row and the core type frame row is sufficiently filled up to the planned embankment height. The improved soil charged so as to be filled in the previous joint section and the intermediate section is compacted from the _upper surface thereof, and the length L1 of the previous joint section and the length _L0 of the intermediate section of the section Ki are set. A waterway embankment is constructed, and the improved soil is poured into the successor section of section Ki so that the height gradually decreases in the groove direction at _a height lower than the height of the embankment, and the successor section of length L1 is constructed. Is the process of constructing the waterway embankment of the section Ki, which leaves the height of the unfinished embankment.
F: After the process of constructing the waterway embankment in section Ki of the above section, if the side frame and core frame are not installed in the next section Ki _{+ 1} , the steps of c and d are repeated. A side frame row and a core frame row are installed at Ki ₊₁ and then L ₀ of the length L ₁ of the previous joint construction section and the intermediate section length L ₀ of the next section Ki ₊₁ in the same manner as in the process of E. Filling and charging of improved soil at + L1 and compacting to construct _a channel embankment, and the remaining successor construction area is incompletely charged so that the height of the improved soil to be charged is gradually reduced in the direction of the ditch. The process of constructing the waterway embankment body of the above-mentioned e as a embankment body is carried out, and the waterway is similarly added by repeating the injection and compaction of the improved soil and the injection of the unfinished improved soil in the section Ki _{+ 2} which is increased by 1 to the construction order i ₊ 1. The process of extending the waterway embankment to extend the embankment for a long time,
Le: If the canal formwork is formed and solidified after or during the process of extending the canal formwork to the above, the side formwork is released from the ground while leaving the core formwork inside the canal formwork. When a space of side formwork traces is generated by pulling out from the canal installation groove, a grout or cement-based solidifying agent is injected from the ground surface into the generated space to fill the space with solidified material, and the outside of the canal embankment is formed. The process of strengthening the formwork to firmly build in the ground,
W: The recess formed by demolding the core mold from the canal embankment that has been constructed for a long time by the steps of c, d, e, and f and the improved soil of the canal embankment is solidified is the canal embankment. The process of forming a recess to make a water channel through which water flows,
W: Construction of a waterway in which the improved soil is poured into the bottom of the recess formed in the waterway embankment in the process of forming the recess in the above and bottomed out to form the bottom of the waterway, and the remaining recessed space is used as the waterway. Process,
N: A process of connecting a canal that connects the canal of the constructed canal embankment to another canal of another water system at the upstream / downstream canal connection portion. The following steps (a), (b), (c), (yo), (ru), (so), (wa), and (nu) are performed in that order, and the soil and the improved soil mixed with the hardening agent or solidifying agent are used for a long seam. A canal construction method that constructs a canal by forming and solidifying a continuous canal embankment.
B: A groove excavation step in which a canal installation groove having a width wider than the canal embankment width of the canal to be constructed and a dimension deeper than the water depth of the canal is excavated long in the planned canal direction in the ground on which the canal is to be constructed. ,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting multiple left and right side formwork along the groove wall surface so that they can be attached and detached and fixed to the ground.
Yo: In the section Ki or the section of the previous joint section and the section of the intermediate section after that, one or more sections.
As the core formwork, a core formwork that can be stacked in multiple stages to reach a predetermined height is used, and the bottom core formwork is placed at the bottom of the channel groove at the intermediate position between the left and right side surface forms. After arranging many rows on the top, fill the improved soil to the height of the bottom core formwork, compact it at that height, then stack the next core formwork, and then stack the next core formwork. The process of putting the improved soil into the space between the formwork and the side formwork, filling it up to the height of the core formwork of the next stage, and then tightening the filled improved soil is the step of the core formwork. By repeating each time the formwork is stacked and raised, the core formwork is stacked up to a predetermined height, and the space between the core formwork and the side formwork of the predetermined height stacked is improved soil. In the successor section of section Ki, the improvement soil filling is at a low height and the height is set to the height of the incomplete embankment so that the height gradually decreases in the groove direction. And the process of filling and compacting the improved soil,
T: After the step of filling and compacting the section Ki of Yo, if the side frame row and the core mold row are not installed in the next section Ki _{+ 1} , the step of filling and compacting of C and Yo is performed. Repeatedly fill and inject improved soil in the length L ₁ of the previous joint section of the next section Ki ₊₁ and L ₀ + L ₁ of the intermediate section length L ₀ , and compact it to construct a channel embankment, and the remaining successor The construction area will carry out the waterway embankment construction process, which will be an unfinished _embankment with only a low input so that the height of the improved soil to be input will gradually decrease in the direction of the _ditch . In the same way, the installation of the stacking core mold, the injection and compaction of the improved soil for each stack of the core mold in the previous joint construction area and the intermediate construction area, and the input of the unfinished improved soil in the successor construction area are repeated. In the process of extending the canal embankment, which extends the canal embankment for a long time.
Le: If the canal formwork solidifies after or during the process of extending the canal embankment, the side formwork can be fixed to the ground while leaving the core formwork inside the canal embankment. When the space of the side formwork trace is generated by unraveling and pulling out from the canal installation groove, a grout or cement-based solidifying agent is injected from the ground surface into the generated space, and the space is filled with solidified material to form the canal embankment. The process of strengthening the formwork to firmly build the outside in the ground,
S: Improvement of the canal embankment that was constructed long by the steps of C, Yo, Ta, and Lu. The process of forming a recess as a water channel through which water flows,
W: Construction of a waterway in which the improved soil is poured into the bottom of the recess formed in the waterway embankment in the process of forming the recess in the Soviet Union to form a bottom of the channel by pouring a predetermined thickness into the bottom of the channel and using the remaining recessed space as the channel. Process,
N: A process of connecting a canal that connects the canal of the constructed canal embankment to another canal of another water system at the upstream / downstream canal connection portion. The following steps (a), (b), (c), (2), (e), (he), (le), (w), (wa), and (nu) are performed in that order, and the soil and the hardener or solidifying agent are mixed in the improved soil on the ground surface. A waterway construction method that constructs a waterway by forming and solidifying a continuous waterway embankment that has no long seams.
B: A groove excavation step in which a canal installation groove having a width wider than the canal embankment width of the canal to be constructed and a dimension deeper than the water depth of the canal is excavated long in the planned canal direction in the ground on which the canal is to be constructed. ,
B: For the channel installation groove that has been excavated for a long time in the groove excavation step of (a), _a pre-seam of length L1 along the groove direction except for the upstream and downstream channel connections of the planned channel. It consists of a work area, an intermediate work area with a length of L ₀ , which is an intermediate work area, and a successor work area with the same length L ₁ described above, and has a total length of 2 L ₁ + L ₀ , which is a total length of L ₂ . Multiple construction orders 1, 2, 3, ..., i sections K ₁ , K ₂ , K ₃ , K ₄ , ..., Ki ,,,, and the successor section of the previous section The section setting process that sets the section so that it overlaps with the previous joint section of the next section,
C: Each section K ₁ , K ₂ , ..., Ki construction order i section Ki construction zone length L ₂ construction zone set in the section setting process of (b) or one after the section Ki. Or, in a construction area where a part of a section of a plurality of construction orders is added, the required length is defined as the outer left and right side surfaces of the planned canal embankment body so as to be along the left and right groove wall surfaces of the canal installation groove. A process of installing side formwork to form a row of side formwork by connecting a plurality of left and right side formwork along the groove wall surface so that they can be detachably attached and fixed to the ground.
D: In the construction section where the section Ki or a part of one or more sections thereafter is added, the channel embankment to be molded and solidified in the channel installation groove after the step of installing the side formwork of c. Multiple grooves of core formwork with a predetermined height and a predetermined width d at the intermediate position of the side formwork rows installed on the left and right sides by stacking one or more stages to form a recess forming a water channel of The process of installing core formwork, which forms a core formwork row by arranging them in a row along the direction.
E': _In the section Ki of the section Ki having the predetermined length L2 along the groove of the channel installation groove, or in the section where a part of the section in the subsequent one or more construction order is added, the section of c. The side frame rows formed by installing a plurality of the side frame rows on the left and right groove wall surfaces of the waterway installation groove in the side frame installation process, and the left and right side frame rows in the core frame installation process of the d. In the section of length L1, which is the pre _- seam section of the section Ki in which the two form sets with the plurality of core form sets of the predetermined height arranged in the middle position in the groove direction are installed, this and this In addition to the partial input of the improved soil in the successor section of the section Ki _-1 before the overlap, the improved soil is input in multiple times so as to be sufficiently filled to the planned height of the embankment, and each time it is input. The upper surface of the improved soil is compacted, and the space between the side frame row and the core frame row is sufficiently filled up to the planned embankment height in the intermediate section of section Ki length _L0 . The improved soil is added in a plurality of times, and the upper surface of the improved soil is _{compacted each} time the improved soil is added. After construction, the improved soil was poured into the successor section of section Ki so that the height gradually decreased in the groove direction at a height lower than the height of the embankment, and the successor section of length L1 was _an unfinished embankment. The process of constructing the waterway embankment of the section Ki, which remains at the height of
F': After the process of constructing the waterway embankment in the section Ki of the section E', if the side frame sequence and the core frame sequence are not installed in the next section Ki _{+ 1} , the steps c and d are repeated. In the section Ki _{+ 1} , a side frame row and a core frame row are installed, and then the length L ₁ of the previous joint section and the length L ₀ of the intermediate section of the next section Ki ₊₁ are the same as in the process of the above-mentioned e'. Filling and charging of improved soil at L ₀ + L ₁ to construct a channel embankment, and the remaining succession section is only low input so that the height of the improved soil to be input is gradually reduced in the direction of the ditch. The process of constructing the canal embankment as an unfinished embankment is carried out, and in the following section Ki ₊₂ , which is increased by 1 to the construction order i ₊ 1, the canal embankment is similarly added and compacted and the unfinished improved soil is added. The process of extending the waterway embankment to extend the body for a long time,
Le: If the canal formwork is formed and solidified after or during the process of extending the canal embankment, the side formwork with the ground remains in the canal formwork while the core formwork is left inside the canal embankment. When the space of the side formwork trace is generated by releasing the fixation and pulling out from the waterway installation groove, a grout or cement-based solidifying agent is injected from the ground surface into the generated space to fill the space with solidified material, and the waterway is described. The process of strengthening the formwork, which firmly constructs the outside of the formwork in the ground.
W: The recess formed by demolding the core mold from the canal embankment, which was constructed for a long time by the steps of c, d, e', and f'and the improved soil of the canal embankment was solidified. The step of forming a recess as a water channel through which water flows in the channel body,
W: The improved soil is poured into the bottom of the recess formed in the waterway embankment in the step of forming the recess to form a bottom of the channel by pouring a predetermined thickness into the bottom of the recess, and the remaining recess space is used as a channel. Waterway construction process,
N: A process of connecting a canal that connects the canal of the constructed canal embankment to another canal of another water system at the upstream / downstream canal connection portion. The side formwork has a structure in which a grounding portion that touches the ground surface at the position of the waterway installation groove to which the side formwork is attached is provided so as to project in the horizontal outward direction from the upper part of the side formwork. The grounding portion is placed on the upper surface of the ground at the mounting position, and then a separate pile is penetrated through the grounding portion and driven deep into the ground so that the side formwork can be quickly mounted on the ground. 6 Any of the waterway construction methods described. Claimed that the demolded core formwork and the demolded side surface formwork were reused as core formwork / side surface formwork in the section Kj of the later construction order j to reduce the number of formwork used. Item 7. The waterway construction method according to any one of Items 1 to 7. When the core formwork is installed at the bottom of the waterway installation groove at the intermediate position of the left and right side formwork, a plurality of anchor members for fixing the position of the lower part of the core formwork are formed into the core form. Any of claims 1 to 8, wherein the lower peripheral edge of the frame is driven into the ground at the bottom of the groove so that the installation position of the core formwork does not move during the water channel construction work so that an accurate water channel can be constructed. The described waterway construction method. The waterway installation groove at the place where the waterway to be constructed is curved is also curved with the same curvature, and the left and right side formwork are also arranged in a plane so as to be curved with the same curvature, and the left and right side forms are also arranged in a plane. The waterway construction method according to any one of claims 1 to 9, wherein the core formwork is arranged in a plane with the same curvature so as to be at an intermediate position of the side formwork so that a curved portion of the waterway can be formed. A side formwork having a predetermined width of l0 installed along the left and right groove wall surfaces of the waterway installation groove for the waterway construction method according to any one of claims ₁ to 10.
The side formwork has a ground contact portion that touches the upper surface of the ground where the channel installation groove is excavated, a mountain-shaped rising portion that rises from the groove side end of the ground contact portion and extends in the groove direction, and a groove of the rising portion. The waterway extends from the side tip to the bottom of the waterway installation groove and defines the outer left and right surfaces of the waterway embankment, and the front and rear end positions of the width _l0 of the formwork side surface. It has front and rear plate-shaped partition plates that are bent until it touches the side surface of the installation groove.
Further, a side formwork having a structure in which a pile hole for driving a pile for fixing the formwork to the ground is provided in the grounding portion. The side form according to claim 11, wherein the side form is integrally molded with a material made of FRP.

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