JP5006851B2 - Construction method of concrete block - Google Patents

Description

  The present invention relates to a method for constructing a shaded concrete block constructed along a riverbank or a coast.

  2. Description of the Related Art Conventionally, a sheet pile wall formed by continuously placing a U-shaped steel sheet pile by engaging its claws as a quay wall such as a river or the sea, or a retaining wall on the ground has been used. And the cap concrete block is constructed in the upper part of this sheet pile wall for corrosion prevention or beautification as a structure.

  In addition, recently, the method of installing the shaded concrete block has been mainly carried out by bringing the cast concrete block made of precast to the site for reasons such as high workability and a short construction period.

  Specifically, for example, a cap concrete block is installed on the top of the sheet pile wall via a height adjustment bolt, etc., and the top of the sheet pile wall is covered with the cap concrete block, and in front of the cap concrete block located on the water surface side. A bottom plate member for leaking the hardener is attached and fixed along the recess of the sheet pile wall at the lower end of the wall portion, and a gap portion surrounded by the bottom plate member, the sheet pile wall, and the inner peripheral surface of the shade concrete block A method of filling the gap with a curing agent such as concrete and curing and fixing (see Patent Document 1), or a cap concrete block installed on the top of the sheet pile wall via a height adjustment bolt or the like The bottom plate member for hardening agent leakage is suspended from the outside of the front wall portion, and the bottom plate member is placed along the recess of the sheet pile wall with the bottom plate member, the sheet pile wall, and the inner peripheral surface of the cap concrete block. Shape the enclosed gap And, this was fixed by filling and curing a curing agent such as concrete in the gap portion, the method (refer to Patent Document 2.) To remove the bottom plate member is known.

Japanese Patent No. 3295928 Japanese Patent No. 3211228

  The present invention relates to a construction method different from those of Patent Documents 1 and 2, and provides an innovative method for constructing a shaded concrete block that makes it possible to further improve the workability and shorten the construction period. Is.

  The gist of the present invention will be described with reference to the accompanying drawings.

A plurality of steel sheet piles 1 are placed along the riverbank and the coast, and a concave and convex sheet pile wall 2 that continuously enters and exits the water surface as seen from the plane is constructed, and a cap concrete block 6 is supported on this sheet pile wall 2 The block support 5 is attached to the block support 5 with a ceiling wall 6A having an opening 7, a front wall 6B hanging from the front end of the ceiling wall 6A, and a lower end of the front wall 6B. A protrusion 8A integrally projecting horizontally from the rear or a bottom plate placing protrusion 8 comprising a placing member 8B attached in a protruding state from the lower end of the front wall 6B toward the horizontal rear. The cap concrete block 6 provided is supported, the cap concrete block 6 is arranged so as to cover the upper part of the sheet pile wall 2, and before or after the cap concrete block 6 is arranged on the upper part of the sheet pile wall 2, the formwork Place the bottom plate 3 for mounting And mounting the plate support member 4 in the sheet pile wall 2, then, the thickness is to employ the following lightweight metal plate 3 mm, a plurality of plates configured by applying proofing 15 such as ribbed on the surface of the metal plate The member 3 </ b> A has a shape capable of closing the uneven gap 9 between the sheet pile wall 2 and the inner surface of the front wall 6 </ b> B of the cap concrete block 6 by arranging the plurality of plate members 3 </ b> A side by side. The formwork bottom plate 3 is inserted into the concave-convex gap 9 through the opening 7 of the ceiling wall portion 6A of the cap concrete block 6 to the bottom plate support 4 and the bottom plate mounting projection 8. Installation of the block concrete block characterized in that after placing and closing the concave-convex gap 9, the hardener 10 is injected and filled into the cap concrete block 6 from the opening 7 to cure the hardener 10. It concerns the method.

In addition, the mold bottom plate 3 may be provided with the overlapping portions 11 in the plurality of plate members 3A, respectively, and close the uneven gap portion 9 in a state where the overlapping portions 11 of the plate members 3A are overlapped with each other. The method for constructing a concrete block according to claim 1, wherein the shape can be changed by changing the overlapping position between overlapping portions 11 of each plate member 3 </ b> A. It is concerned .

Also, the bottom plate support member 4, claim 1, 2 of any one, characterized in that the mold for the bottom plate 3 which is supported on the bottom plate support member 4 with a lifting adjustable adjusting means 12 The construction method of the shade concrete block described in 1.

In addition, the bottom plate support 4 and the block support 5 are provided with a hook-shaped hooking portion 13 and can be attached by hooking the hooking portion 13 to the sheet pile wall 2. It concerns on the construction method of the shade concrete block of any one of Claims 1-3 characterized by these.

Further, the water passage hole 14 is formed through the mold bottom plate 3, and the hole diameter of the water passage hole 14 is set to a small hole diameter that prevents the hardener 10 from leaking out. It concerns on the construction method of the shade concrete block of any one of 1-4 .

  As described above, the present invention inserts the bottom plate for the formwork into the concave-convex gap portion from the opening of the top wall portion of the cap concrete block and places it on the bottom plate support and the bottom plate mounting projection. There is no need to fix the bottom plate for the formwork, and it can be installed very easily. Also, the bottom plate for the formwork is composed of a plurality of plate members. Since it is a shape that can block the concave and convex shape gap between the inner surface of the front wall of the block, the bottom plate for the formwork is very easy to handle and has excellent workability, and a plurality of plate members with simple operation Since the gap between the concave and convex shapes can be closed as much as possible, when the hardening agent is injected and filled into the concrete block from the opening, the hardening agent can be effectively leaked by the bottom plate for the formwork. And fix the concrete block firmly In addition, since the entire mold base plate is cured with a curing agent (since the mold base plate is discarded as a mold frame), there is no need to remove the mold after the curing agent is cured. It is extremely practical, such as the formwork can not be used in another part until the curing is completed, and the construction period will not be extended, and the installation work can be performed continuously one after another and the construction period can be significantly shortened. This is an innovative method for building concrete caps.

Further, in the present invention, since the mold base plate is light and easy to handle, the workability of the mold base plate is further improved, and the form plate bottom plate is thin, but is strengthened by reinforcement processing. Therefore, it is possible to prevent the leakage of the curing agent without sagging even when the curing agent is filled, and the construction method of the shade concrete block is extremely excellent in practicality.

Further, in the invention described in claim 2, the structure of the bottom plate for formwork whose shape can be easily changed in accordance with the shape of the concavo-convex-shaped gap is simplified, and the design can be easily realized with further practicality. It will be an excellent method for building concrete cap blocks .

Also, in the invention of claim 3, since the bottom plate support member elevating adjusted to the bottom plate support member and the mold for the bottom plate and the bottom plate mounting protrusion bevel concrete blocks can be stably placed, This formwork base plate can prevent the hardener from leaking downward, and can be injected and filled with an appropriate amount of hardener on the base plate for formwork so that the concrete block can be firmly installed and fixed. Since it is possible to fill the curing agent without waste, the construction cost can be expected to be reduced.

Further, in the invention described in claim 4 , since the bottom plate support block and the block support device can be easily attached to the sheet pile wall by simply latching without requiring work such as welding, further construction work can be performed. This is a method of constructing a shade concrete block that is extremely practical and can be simplified to shorten the construction period.

Further, in the invention according to claim 5 , since the hardening agent can be filled even when the water level of the river or the sea rises, it is possible to further shorten the work period, and to make the shade concrete block excellent in practicality. It becomes a construction method.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  A plurality of steel sheet piles 1 are placed along the riverbank and the coast, and a concave and convex sheet pile wall 2 that continuously enters and exits the water surface as seen from the plane is constructed, and a cap concrete block 6 is supported on this sheet pile wall 2 When the block support 5 to be mounted is attached, the cap concrete block 6 is supported on the block support 5 and the cap concrete block 6 is arranged so as to cover the upper portion of the sheet pile wall 2, the sheet pile wall 2 and the cap concrete block 6 is formed between the inner surface of the front wall portion 6B of the concave portion 6 and the concave portion 9.

  In addition, before or after the cap concrete block 6 is placed on the top of the sheet pile wall 2, a bottom plate support 4 for mounting and supporting the bottom plate 3 for formwork is attached to the sheet pile wall 2.

  Next, the formwork bottom plate 3 is inserted into the concavo-convex-shaped gap 9 from the opening 7 of the ceiling wall portion 6A of the cap concrete block 6, and the formwork bottom plate 3 is connected to the bottom plate support 4 and The concavo-convex gap portion 9 is closed by placing it on the bottom plate placing projection 8 projecting horizontally from the lower end of the front wall portion 6B of the cap concrete block 6.

  At this time, the concave and convex shape gap portion 9 is often formed by a plurality of plate members 3A, although the shape is not constant due to deformation of the steel sheet pile 1 itself, inclination at the time of driving, or the like. For example, the bottom plate 3 for formwork that can close the concave-convex gap 9 between the sheet pile wall 2 and the inner surface of the front wall 6B of the cap concrete block 6 is arranged by arranging a plurality of plates. Since the shape of the bottom plate 3 for formwork can be changed in accordance with the shape of the concavo-convex gap 9 by arranging a part of the members 3A in an overlapping manner, any shape of the concavo-convex gap 9 can be used. A plurality of formwork bottom plates 3 can be arranged side by side and closed as easily as possible.

  Further, since the plurality of plate members 3A are easier to handle than the case where the bottom plate 3 for formwork is constituted by a single large plate member, the plate members 3A are placed in the shade concrete block 6 from the opening 7. It is also easy to perform insertion and rearrangement in accordance with the shape of the uneven gap 9.

  Thereafter, when the hardener 10 is poured and filled into the concrete block 6 through the opening 7, the mold bottom plate 3 prevents the hardener 10 from leaking downward, and the inside of the concave gap 9 As the curing agent 10 is cured, the cap concrete block 6 and the sheet pile wall 2 are integrally fixed.

  Therefore, it is very easy to close the uneven gap 9 by inserting the plate member 3A from the opening 7 of the cap concrete block 6 arranged above the sheet pile wall 2 into the uneven gap 9 and placing it side by side. In this state, the mold base plate 3 can be installed, and then the mold base plate 3 is directly filled with the curing agent 10 and cured together with the mold base plate 3. That is, the mold base plate 3 is discarded as the mold frame. As a result, there is no need to remove the mold after the curing agent 10 is cured, and it is possible to install and install the concrete block 6 one after another without waiting for the curing of the curing agent 10 to be completed. It will be an innovative method for building concrete caps that will excel as well as significantly shorten the construction period.

The mold base plate 3 is made of a lightweight metal plate having a thickness of 3 mm or less, and the surface of the metal plate is subjected to reinforcement processing 15 such as rib processing. Since it is lightweight and easy to handle, it is possible to more easily perform the work of installing the bottom plate 3 for the mold in the concave-convex gap 9 in the shaded concrete block 6, and for this mold while being a lightweight thin plate. Since the bottom plate 3 has a high strength due to the reinforcement processing 15, it does not bend when the curing agent 10 is filled, and the leakage of the curing agent 10 can be well prevented.

In addition, for example, the base plate 3 for formwork is provided with the overlapping portions 11 on the plurality of plate members 3A, respectively, and closes the concavo-convex gap portion 9 in a state where the overlapping portions 11 of the respective plate members 3A are overlapped. If it is configured so that the shape can be changed by changing the overlapping position of the overlapping portions 11 of each plate member 3A, the shape can be changed according to the shape of the concave and convex shape gap portion 9 The possible configuration of the bottom plate 3 for formwork can be easily designed and realized with a simple configuration, and the shape of the bottom plate 3 for formwork can be easily changed .

Also, for example, the bottom plate support member 4, with the configuration provided with the bottom plate support member 4 the mold for the bottom plate 3 lifting adjustable adjusting means 12 which is supported on, to adjust the bottom plate support tool 4 The bottom plate support plate 4 and the bottom plate mounting protrusion 8 of the cap concrete block 6 can stably mount and support the mold bottom plate 3. Leakage of the curing agent 10 downward can be prevented well, whereby an appropriate amount of the curing agent 10 can be injected and filled on the mold bottom plate 3 without waste, and the shade concrete block 6 can be firmly installed and fixed.

  Further, for example, the bottom plate support 4 and the block support 5 are provided with a hook-shaped hook 13 and can be attached by hooking the hook 13 to the sheet pile wall 2. By doing so, the bottom plate support 4 and the block support 5 can be easily attached to the sheet pile wall 2 simply by being hooked without requiring work such as welding, thereby further simplifying the installation work. The construction period can be shortened.

  In addition, for example, if the water passage hole 14 is formed through the mold bottom plate 3 and the hole diameter of the water passage hole 14 is set to a small hole diameter that prevents the hardener 10 from leaking out, the river or sea When the water level rises due to changes in the tide level or the influence of waves generated by vessel navigation, water enters the concavo-convex gap 9 through the water passage hole 14, and thereby the bottom plate 3 for formwork Therefore, it is difficult to cause displacement due to floating, so that the closed state of the concavo-convex shape gap 9 is well maintained, and there is little trouble of rearranging the plate members 3A. Even if it has entered, water is drained from the water passage hole 14 by pouring the curing agent 10 into the concavo-convex gap 9, so that the curing agent 10 can be filled even when the water level rises. Therefore, the water level rise does not hinder the work and The period can be shortened.

  A first embodiment of the present invention will be described with reference to FIGS.

  In the present embodiment, a plurality of steel sheet piles 1 are placed along the riverbank and the coast as shown in FIG. 1 to construct an uneven sheet pile wall 2 that continuously enters and exits the water surface as viewed from the plane. The present invention relates to a method for constructing a shaded concrete block in which a large number of shaded concrete blocks 6 are installed and fixed in a juxtaposed state above the sheet pile wall 2.

  Specifically, as shown in FIGS. 2 and 3, the steel sheet pile 1 having a substantially U shape in plan view is continuously driven by engaging the claws 1 </ b> A at both end portions with each other. The sheet pile wall 2 in which the unevenness is continuous is constructed.

  Next, a bottom plate support 4 for mounting and supporting a formwork bottom plate 3 to be described later and a block support 5 for supporting the cap concrete block 6 are attached to the sheet pile wall 2 (see FIG. 6). The bottom plate support 4 may be attached by inserting the cap concrete block 6 in the upper portion of the sheet pile wall 2 and then inserting it into the cap concrete block 6 from the opening 7.

  As shown in FIGS. 3 and 6, the bottom plate support 4 of this embodiment is a hook-shaped hook that can be hooked on the sheet pile wall 2 with the upper end of a bolt rod 16 having an L-shaped bottom plate support 18 attached to the lower end. The operation nut 17 is inserted into the base end of the latching portion 13, and an operation nut 17 is screwed onto the bolt rod 16, and the bolt rod 16 is provided in a retaining state with respect to the latching portion 13 by the operation nut 17.

  Further, the bottom plate support 4 is provided with adjusting means 12 that can adjust the bottom plate support 18 to be moved up and down by rotating the operation nut 17, and the bottom plate 3 for the formwork that is placed and supported on the bottom plate support 18. The mold bottom plate 3 can be stably placed and supported together with the bottom plate placing protrusion 8 described later by adjusting the height of the bottom plate.

  As shown in FIGS. 3 and 6, the block support 5 of the present embodiment has a hemispherical block support 20 at the upper end, and an operation nut 21 is fixed to an upper position below the block support 20. The bolt rod 19 is inserted into the proximal end of a hook-shaped hooking portion 13 that can be hooked on the sheet pile wall 2 and is screwed to a mounting nut 22 provided on the hooking portion 13.

  Further, the block support 5 is provided with adjusting means 12 capable of adjusting the block support portion 20 by rotating the operation nut 21 and adjusting the cap concrete block 6 supported by the block support portion 20 to be adjusted up and down. And can be supported in the correct posture. That is, each steel sheet pile 1 of the sheet pile wall 2 does not necessarily have a constant height at the upper end, but it can be dealt with by adjusting the height of the block support 20 of the block support 5 uniformly. 6 can be supported in the correct posture. At this time, since the block support portion 20 has a smooth hemispherical shape, the friction resistance between the block support portion 20 and the inner surface of the top wall portion 6A of the cap concrete block 6 is small, and the rotation operation of the operation nut 21 is performed. The configuration is such that (the operation of the adjusting means 12) is performed relatively easily.

  The bottom plate support 4 and the block support 5 are attached to the plurality of sheet pile walls 2 by hooking the hook 13, and the cap concrete block 6 is supported on the block support 20 of the plurality of block supports 5. To do.

  The shaded concrete block 6 of the present embodiment is made of precast, and as shown in FIG. 4, a ceiling wall portion 6A having an opening 7 and a rear wall portion 6C hanging from the rear end of the ceiling wall portion 6A These are integrally formed in a substantially inverted U-shaped cross-section in a side view including a front wall portion 6B depending from the front end of the ceiling wall portion 6A.

  Further, a protrusion 8A is integrally projected from the lower end of the front wall portion 6B toward the horizontal rear, and the integrally formed protrusion 8A is placed on the bottom plate mounting protrusion 8 to be described later. It is said.

  The cap concrete block 6 is lifted using a crane or the like, lowered to the upper portion of the sheet pile wall 2 and the inner surface (lower surface) of the ceiling wall portion 6A is supported by the block support portion 20, and the cap concrete block 6 is attached to the sheet pile wall 2. After being arranged so as to cover the upper part, the concrete block 6 is corrected to a correct posture by the adjusting means 12 of each block support 5 (see FIGS. 7 and 8).

  Then, as shown in FIGS. 3 and 8, a concavo-convex gap 9 is formed between the sheet pile wall 2 and the inner surface of the front wall 6 </ b> B of the cap concrete block 6.

  Next, the mold bottom plate 3 having a shape capable of closing the uneven gap portion 9 is inserted into the uneven gap portion 9 through the opening 7 of the ceiling wall portion 6A of the cap concrete block 6, and the adjustment is performed. By adjusting the height of the bottom plate support portion 18 of the bottom plate support 4 by means 12, the mold bottom plate 3 is stably placed on the plurality of bottom plate support 4 and the bottom plate mounting projections 8. Then, the uneven gap 9 is closed (see FIG. 8).

  As shown in FIG. 5, the mold bottom plate 3 of the present embodiment is formed of a light metal plate having a thickness of 1 mm and easy to handle, and is used as a reinforcing process 15 for preventing bending when the curing agent 10 described later is filled. The surface is subjected to many ribs (press processing) of chevron and cross pattern (cross pattern in the drawing).

  In addition, as shown in FIGS. 2, 3 and 5, the formwork bottom plate 3 is a plate portion having a shape (substantially trapezoidal) substantially matching one half of the concave portion of the sheet pile wall 2 in plan view. And a plate member 3 </ b> A in a shape that is substantially integrated with a half portion of one side of the convex portion of the sheet pile wall 2 (substantially belt-like shape), and the other half on the other side of the concave portion of the sheet pile wall 2 A plate having a shape in which the plate portion having a shape substantially matching the portion (substantially trapezoidal shape) and the plate portion having a shape substantially matching the half portion on the other side of the convex portion of the sheet pile wall 2 (substantially in the shape of a band) are integrated. The plate member 3A is composed of two types of plate members 3A, and both end portions of the two types of plate members 3A are used as overlapping portions 11, and a large number of the plate members 3A are formed in a state where the overlapping portions 11 are overlapped with each other. The gap 9 is configured to be able to be closed.

  Further, the shape of the bottom plate 3 for formwork is changed in accordance with the shape change of the concave and convex shape gap portion 9 by changing the overlapping position of the overlapping portions 11 of the plate members 3A to the vertical, horizontal and oblique methods. It is configured to be able to.

  That is, since the steel sheet pile 1 constituting the sheet pile wall 2 is inclined and driven, or the steel sheet pile 1 itself is deformed and the lateral width is widened or narrowed. In many cases, the shape and dimensions of the gap 9 are different depending on the location. Therefore, if the bottom plate 3 has a shape matching the product drawing of the steel sheet pile 2, the gap 9 may not enter the uneven shape gap 9. Although a gap may be generated, according to the configuration of the present embodiment, by shifting the overlapping positions of the overlapping portions 11 of each plate member 3A, for example, the mold bottom plate 3 is in a substantially horizontal state and has an uneven gap. Since the formwork bottom plate 3 can be changed so that the portion 9 can be closed without a substantial gap, the formwork bottom plate 3 can be stably placed by the bottom plate support 4 and the bottom plate placing projection 8. Yes (see FIG. 9).

  Further, since each plate member 3A is made thin, it can be easily cut and welded on site, and can be easily processed into a shape capable of closing the uneven gap 9.

  In addition, a plurality of small-diameter water holes 14 through which the curing agent 10 described later hardly leaks are formed in the formwork bottom plate 3 so as to be scattered.

  Therefore, even if the water level of the river or the sea rises due to the change of the tide level or the influence of the waves generated by the vessel navigation, the water enters the uneven gap 9 through the water passage hole 14, so The frame bottom plate 3 is difficult to float and is not likely to be displaced. Further, even when water enters the concave / convex gap 9 from the water passage hole 14, the water is drained from the through hole 14 by pouring the curing agent 10 into the concave / convex gap 9. Even when such a water level rises, the work of filling the curing agent 10 can be performed. Therefore, the water level rise does not hinder the work, and the construction period can be shortened.

  Next, a hardener 10 such as concrete is injected and filled into the cap concrete block 6 from the opening 7 of the top wall portion 6A of the cap concrete block 6 (see FIG. 10).

  At this time, since the concavo-convex gap 9 is closed by the bottom plate 3 for formwork, it does not leak downward. Then, by curing the curing agent 10, the shaded concrete block 6 and the sheet pile wall 2 are integrated, and the shaded concrete block 6 is fixed.

  Further, at this time, a large number of cross patterns existing on the surface of the mold bottom plate 3 enhance the adhesion to the curing agent 10, so that high installation and fixing strength can be obtained.

  A second embodiment of the present invention will be described with reference to FIG.

  The present embodiment is a case where the configuration of the bottom plate mounting protrusion 8 provided on the front wall portion 6B of the cap concrete block 6 in the first embodiment is changed.

  Specifically, one side plate portion of the mounting member 8B having an L-shaped cross section is attached to the inner surface of the lower end of the front wall portion 6B of the cap concrete block 6, and the other side plate portion is horizontally rearward from the lower end of the front wall portion 6B. In this case, the other side plate portion of the mounting member 8B protruding in the horizontal rear direction is a bottom plate mounting protrusion portion 8 on which the formwork bottom plate 3 can be mounted.

  Other configurations are the same as those of the first embodiment.

  The present invention is not limited to the first and second embodiments, and the specific configuration of each component can be designed as appropriate.

It is a schematic explanatory perspective view which shows the construction completion state of Example 1. FIG. 1 is an explanatory exploded perspective view of Example 1. FIG. FIG. 3 is an enlarged explanatory perspective view in which the shade concrete block is partially cut out in the construction completion state of the first embodiment. It is a sectional side view which shows the shade concrete block of Example 1. FIG. It is an expansion explanatory top view which shows the baseplate for formwork of Example 1. FIG. It is a schematic explanatory side sectional view which shows the state which attached the baseplate support and the block support to the sheet pile wall of Example 1. FIG. 7 is a schematic side cross-sectional view illustrating a state in which the cap concrete block is intended to be supported on the block support tool, following FIG. 6. FIG. 8 is a schematic side cross-sectional view illustrating a state in which the bottom plate for formwork is inserted from the opening of the cap concrete block and placed on the bottom plate support, following FIG. 7. FIG. 9 is a schematic cross-sectional plan view illustrating the state in which plate members are arranged to try to close the concavo-convex-shaped gap portion after the block support is omitted. FIG. 10 is a schematic cross-sectional side view illustrating a state in which the hardener is injected and filled into the cap concrete block from the opening of the cap concrete block following FIG. 9. It is a sectional side view which shows the shade concrete block of Example 2. FIG.

DESCRIPTION OF SYMBOLS 1 Steel sheet pile 2 Sheet pile wall 3 Form plate bottom plate 3A Plate member 4 Bottom plate support 5 Block support 6 Caps concrete block 6A Top wall 6B Front wall 7 Opening 8 Bottom plate mounting projection 8A Protrusion 8B Mounting member 9 Uneven shape gap
10 Hardener
11 Superposition part
12 Adjustment means
13 Hook
14 Water vent
15 Reinforcement processing

Claims (5)

A block bearing that supports a concrete block on the sheet pile by placing multiple steel sheet piles along the riverbank and coastline to construct an uneven sheet pile wall that continuously enters and exits the water surface as seen from the plane. Is attached to the block support, and the front wall part that hangs from the front end of the top wall part, and the bottom wall of the front wall part project horizontally from the lower end. A cap concrete block having a bottom plate mounting projection composed of a projection or a mounting member provided in a projecting state from the lower end of the front wall portion to the horizontal rear side. Before or after placing the cap concrete block on the top of the sheet pile wall, a bottom plate support for mounting and supporting the formwork bottom plate is attached to the sheet pile wall, and then the thickness of the sheet pile wall is covered. Lightness of less than 3mm While adopting a metal plate, made of a plurality of plate members constructed by applying a reinforcing process such as ribbed on the surface of the metal plate, the shade concrete and the sheet pile wall by arranging side by side the plurality of plate members The bottom plate for formwork that can close the uneven shape gap between the front wall portion of the block and the inner surface of the block is inserted into the uneven shape gap through the opening of the top wall portion of the cap concrete block. After placing the bottom plate support and the bottom plate mounting protrusion to close the uneven gap, the hardener is injected and filled into the concrete block from the opening to cure the hardener. The construction method of the shade concrete block characterized by this.   The formwork bottom plate is configured in such a shape that a plurality of the plate members are respectively provided with overlapping portions, and the overlapping portions of the respective plate members are overlapped with each other so that the uneven gap portion can be closed. The method for constructing a shaded concrete block according to claim 1, characterized in that the shape can be changed by changing the overlapping position of the overlapping portions of the plate members. The said baseplate support tool was equipped with the adjustment means which can raise / lower the said baseplate for formwork supported by this baseplate support tool, The shade concrete block of any one of Claim 1, 2 characterized by the above-mentioned. Construction method . 2. The bottom plate support and the block support are provided with a hook-shaped latching portion, and can be attached by latching the latching portion on the sheet pile wall. The construction method of the cap concrete block of any one of -3. 5. A water passage hole is formed through the mold base plate, and the hole diameter of the water passage hole is set to a small hole diameter that prevents the hardener from leaking out. The method for constructing the cap concrete block according to item 1.

Images