JP2018154997A - Wall body structure with filling material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall body structure capable of omitting a connecting member to which a tensile force is applied by connecting a pair of wall bodies.SOLUTION: A wall body structure 1 having a filling material 13 includes a first wall body 8A in which a plurality of wall body constituting members 2 are connected in the wall width direction, a second wall body 8B which separately stands erect from the first wall body 8A in the wall thickness direction and in which a plurality of wall body constituting members are connected in the wall width direction, and the filling material 13 filled between the first wall body 8A and the second wall body 8B to a predetermined depth. The connecting member to which a tensile force is applied by connecting the wall bodies of the first wall body 8A and the second wall body 8B is omitted.SELECTED DRAWING: Figure 1

Description

  The present invention is to secure a certain working space in work for excavating a dike at the time of flooding (during flooding, snow melting, etc.) (construction of water gates, lock pipes and locks) and for repairing / reinforcing a damaged dike. Wall structure with filling material provided at the boundary between the front side and the back side, such as temporary cutoff structures, water structures such as quay walls, revetments, breakwaters, and land structures such as retaining walls and retaining walls About.

  In the following, we will focus on the temporary closing structure (steel sheet pile double structure) that needs to be dismantled and removed within several years after construction. Conventionally used temporary deadlines and permanent water bodies (revetments, quays, breakwaters, dikes, etc.) and land structures (retaining walls, retaining walls, etc.) As a structure, after connecting a pair of wall bodies to a pair of wall bodies in which a plurality of steel sheet piles (wall structure) are connected in the wall width direction by a connecting member such as a tie rod, between the pair of wall bodies. A wall structure has been proposed in which a filling material is introduced. When connecting a pair of wall bodies with a connection member, as shown in FIG. 23, the steel sheet pile 14 is installed upright on the ground at intervals, and two rows of steel sheet pile walls 15 are provided. After the abdomen 16 is installed near the head of the wall 15, the two rows of steel sheet pile walls 15 are connected to each other by a connecting member 17 such as a tie rod, and then the filling material 18 is interposed between the two rows of steel sheet pile walls 15. To form a wall structure 19.

  In addition, the wall structure disclosed in Patent Document 1 discloses a double steel sheet pile wall structure using an inclined steel sheet pile partition wall in order to improve the yield strength against external force and water stoppage. Specifically, in the wall structure disclosed in Patent Document 1, two rows of steel sheet pile walls are placed in parallel at intervals, and between the steel sheet pile walls, directions alternately different from the steel sheet pile wall surface. A large number of inclined steel sheet pile partition walls are arranged in the longitudinal direction of the steel sheet pile wall, and each inclined steel sheet pile partition wall is constituted by a steel sheet pile having irregularities such as a grooved steel sheet pile or a steel pipe sheet pile, and each inclined steel sheet pile Provided is a double steel sheet pile wall structure in which both ends of the partition wall are connected to the steel sheet pile wall, and a space surrounded by the steel sheet pile wall and the inclined steel sheet pile partition wall is filled with filling materials such as sand and gravel. Is.

Japanese Utility Model Publication No. 2-337928

  The following will focus on the problems of the double steel sheet pile wall structure when used as a temporary closing structure that must be dismantled and removed within a few years after construction (water structure and land structure used permanently) Will not be dismantled within several years after construction).

  In a conventional double steel sheet pile wall structure, when a pair of wall bodies are connected by a connecting member, the middle part of the wall height (above the ground surface) of the loading side (river side) wall body swells outward. However, it transforms into a so-called “protruding” shape. For this reason, the wall on the loading side (river side) has a shape (inclined surface) inclined toward the other wall from the middle part to the upper part, so that the flow of the flood easily goes up beyond the wall. Similarly, drifting objects such as driftwood and falling objects are likely to go up beyond the wall. For this reason, there is a concern that it is difficult to reliably protect the assets and assets existing inside the wall structure (back of the river) from flooding and flooding due to typhoons and heavy rain.

  In addition, when connecting a pair of wall bodies with a connecting member, the bending moment of the loading side (river side) wall body seems to have an extreme value (convex shape) at the middle part of the wall height (above the ground surface). Distributed. That is, the outer side (river side) is distributed so as to be bent and pulled. For this reason, there is a problem that it is easily damaged by a collision of drifting objects such as driftwood and falling objects. Moreover, the amount of corrosion and the amount of wear increase in the portion above the ground surface. Further, when an overload such as a vehicle is loaded on the upper part of the wall structure, a bending moment is generated in the connecting member (usually designed and constructed with respect to the tensile force), which may cause a problem in the safety of the connecting member. was there.

  In addition, when connecting a pair of wall bodies with a connecting member, the materials used are tie materials, belly protuberances (channel steel, H-shaped steel), brackets, bolts and nuts, etc., in addition to steel sheet piles and filling materials A wide variety. For this reason, there is a problem that materials cannot be procured quickly and easily and it is difficult to start construction at an early stage. Also in the construction, after placing the steel sheet pile, a bracket is welded to the steel sheet pile, and the abdomen is placed on the bracket. Next, after the tie material is disposed, the filling material is filled. The filling material is compacted by means such as rolling, but because the tie material is provided, the compaction operation is hindered, the work efficiency is reduced, and it is difficult to ensure the compaction quality. There is a problem of prolonged.

  Furthermore, when dismantling and removing the wall structure, many types of work (processes) such as cutting the tie material, removing the abdomen and brackets, discharging the filling material, and pulling out the steel sheet pile, etc. Is required, and the removal work takes a long time. In addition, since the tension | tensile_strength acts on a tie material, the removal operation | work by only loosening the nut of a tie material head is difficult. For this reason, in the field practice, the timber is cut and then removed, and the timber is not reused at most sites.

  As described above, in the conventional wall structure in which a pair of wall bodies are connected by a connecting member, the loading-side (river-side) wall body swells outward in the middle of the wall height (above the ground surface). However, because it transforms into a so-called “bulging out” shape, there is a problem that the flow of flooding is easy to go up over the wall, and drifting objects and downflows such as driftwood are easy to go up over the wall. . In addition, there is a problem that it is easily damaged by drifting objects such as driftwood and falling objects, and the portion above the ground surface also increases the amount of corrosion and wear.

  Furthermore, the conventional wall structure in which a pair of wall bodies are connected by a connecting member has a wide range of materials to be used and requires labor for installation, so that the construction period until completion of the wall structure has been long. For this reason, there was a problem that the start of repair work requiring urgent action, such as repair work on a broken embankment, was delayed. In addition, there was a problem that it took time to dismantle and remove after the repair work.

  Therefore, the present invention has been devised in view of the above-described problems, and the object of the present invention is to connect a pair of wall bodies to each other and omit a connecting member to which a tensile force is applied. To provide a body structure.

  The wall structure of the first invention is a wall structure having a filling material, wherein a plurality of wall members are connected in a wall width direction, and a wall thickness direction from the first wall. Between the first wall body and the second wall body, and the second wall body, the plurality of wall body constituting members being connected in the wall width direction, and filled to a predetermined depth. A connecting member to which a tensile force is applied by connecting the wall bodies of the first wall body and the second wall body to each other is omitted.

  The wall structure of the second invention is characterized in that, in the first invention, the first wall body and the second wall body each have a protruding portion protruding from the ground surface by a predetermined length.

  The wall structure of the third invention is characterized in that, in the second invention, the protruding amount of the first wall body from the ground and the protruding amount of the second wall body from the ground are different.

  A wall structure of a fourth invention is characterized in that, in the third invention, a horizontal external force acts on a wider range of the first wall body and the second wall body.

  The wall structure of the fifth invention is the wall structure according to any one of the first to fourth inventions, wherein each of the first wall body and the second wall body has an intrusion portion rooted by a predetermined length from the ground surface. It is characterized by being.

  The wall structure according to a sixth aspect of the present invention is characterized in that, in any one of the first to fifth aspects, the surface of the filling material has a horizontal cross-sectional shape in the wall thickness direction.

  The wall structure of the seventh invention is characterized in that, in any one of the first to fifth inventions, a cross-sectional shape of the surface of the filling material in the wall thickness direction is an inclined surface.

  The wall structure of the eighth invention is any one of the first to fifth inventions, characterized in that the cross-sectional shape in the wall thickness direction of the surface of the filling material includes a horizontal surface and an inclined surface.

  The wall structure of the ninth invention is the wall structure according to any one of the first to eighth inventions, wherein the wall constituting member has a male joint at one side end portion among both side end portions along the axial direction. Each of the other side ends has a female joint that fits with the male joint of another wall member that is adjacent in the wall width direction, and is fixed to a predetermined region of the fitting portion of the male joint and the female joint. It is characterized by water treatment.

  The wall structure of the tenth invention is characterized in that, in any one of the first to ninth inventions, the rigidity of the first wall body and the rigidity of the second wall body are different.

  The wall structure of the eleventh aspect of the present invention is characterized in that, in any one of the first to tenth aspects of the present invention, the wall member constituting member has different rigidity in the axial direction.

  In any one of the first to eleventh inventions, the wall constituting member of the twelfth invention is a steel sheet pile, a steel pipe sheet pile, a concrete sheet pile, and a box-shaped member having a substantially rectangular cross section, and a corner portion of the box-shaped member. It is characterized in that it is composed of any one of the double joint sheet piles composed of the joint member provided.

  The wall structure of the thirteenth aspect of the invention is any one of the first to eleventh aspects of the invention, wherein the wall body is composed of a plurality of steel pipe piles and a closing material that closes gaps between the plurality of steel pipe piles. It is characterized by.

  According to the first to thirteenth inventions, a connecting member to which a tensile force is applied by connecting a pair of wall bodies can be omitted. As a result, the wall on the loading side (river side) has a so-called “wave return” shape in which the middle part of the wall height (above the ground surface) is recessed inside (filling material side) and the upper part overhangs. Since it is deformed into a shape that is inclined to the river side from the ground surface to the upper part, the flow of the flood is difficult to go up the wall. Similarly, drifting objects and drifting objects such as driftwood are difficult to go up beyond the wall. For this reason, it is possible to more reliably protect the property and assets existing inside the wall structure (back of the river) from flooding and flooding due to typhoons and heavy rain.

  In addition, the bending moment above the ground surface is relatively small, and it is distributed so that the filling material side opposite to the outside (river side) is bent and pulled. And since the maximum bending moment (extreme value) occurs in the ground below the ground surface, it has an advantage that it is difficult to receive damage due to the collision of drifting objects such as driftwood and falling objects. In addition, the amount of corrosion and wear is low in the ground.

  Further, according to the first to thirteenth inventions, it is not necessary to prepare various materials such as tie materials, belly bumps (grooved steel, H-shaped steel), brackets, bolts and nuts. For this reason, materials can be procured quickly and easily, and construction can be started early. Moreover, also in the construction of the wall structure, after placing the steel sheet pile, it is only necessary to fill with the filling material and compact. For this reason, the wall structure can be constructed in a very short construction period. In addition, since no tie material is provided, the filling operation and the compacting operation of the filling material are easy, and the compaction quality can be easily ensured. Furthermore, when dismantling and removing the wall structure, it is only necessary to pull out the steel sheet pile after discharging the filling material, so that the dismantling and removal work can be performed in a very short time.

It is a perspective view which shows the wall body structure to which this invention is applied. (A) is a top view which shows the wall body structural member (hat-shaped steel sheet pile) of 1st Embodiment of the wall body structure to which this invention is applied, (b) is the front view. (A) is a top view which shows the wall structure (hat-shaped steel sheet pile) of 1st Embodiment of the wall structure to which this invention is applied, (b) is the front view. (A) is a top view which shows that the wall body structural member of 1st Embodiment of the wall body structure to which this invention is applied has the area where a female joint is not continuously installed, (b) It is a front view. (A) is a top view which shows that the wall body structural member of 1st Embodiment of the wall body structure to which this invention is applied has the area where a female joint is not installed intermittently, (b) It is a front view. (A) is a top view which shows that the wall body structural member of 1st Embodiment of the wall body structure to which this invention is applied has a water-permeable hole in a predetermined range in an axial direction, (b) It is the front view. It is a wall structure of 1st Embodiment of the wall structure to which this invention is applied, Comprising: It is a side view which shows the wall structure in which the upper end position of a filling material is substantially the same as the upper end of a wall structure. It is a wall body structure of 1st Embodiment of the wall body structure to which this invention is applied, and is a side view which shows the wall body in which the upper end position of a filling material is lower than the upper end of a wall body structure. It is a wall body structure of 1st Embodiment of the wall body structure to which this invention is applied, and is the side view from which the protrusion amount from the ground of a 1st wall body differs from the protrusion amount from the ground of a 2nd wall body. It is a wall structure of 1st Embodiment of the wall structure to which this invention is applied, and is a side view which shows that the cross-sectional shape in the wall thickness direction of the inside filling material surface is an inclined surface. It is a wall body structure of 1st Embodiment of the wall body structure to which this invention is applied, and is a side view which shows that the cross-sectional shape in the wall thickness direction of the inside filling material surface is a shape containing a horizontal surface and an inclined surface. The wall structure of the first embodiment of the wall structure to which the present invention is applied, the amount of protrusion of the first wall from the ground is different from the amount of protrusion of the second wall from the ground, It is a side view which shows that the cross-sectional shape in a wall thickness direction is a shape containing a horizontal surface and an inclined surface. It is a wall body structure of 1st Embodiment of the wall body structure to which this invention is applied, and the rigidity in the axial center direction (vertical direction) of the wall body structural member which comprises a 1st wall body and a 2nd wall body differs. It is sectional drawing shown. (A) is a top view which shows the wall structure (U-shaped steel sheet pile) of 2nd Embodiment of the wall structure to which this invention is applied, (b) is the front view. (A) is a top view which shows the wall structure (concrete sheet pile) of 3rd Embodiment of the wall structure to which this invention is applied, (b) is the front view. (A) is a top view which shows the wall structure (double joint sheet pile) of 4th Embodiment of the wall structure to which this invention is applied, (b) is the front view. (A) is a top view which shows the wall body structure (steel pipe pile) of 5th Embodiment of the wall body structure to which this invention is applied, (b) is the front view. (A) is a top view which shows the wall structure (steel pipe sheet pile) of 6th Embodiment of the wall structure to which this invention is applied, (b) is the front view. (A) is a figure which shows the simulation result of the displacement amount of the 1st wall body (loading side) of the wall body structure which concerns on an Example, (b) is the 2nd wall body (non-) of the wall structure which concerns on an Example. It is a figure which shows the simulation result of the displacement amount of (loading side). (A) is a figure which shows the simulation result of the bending moment of the 1st wall body (loading side) of the wall body structure which concerns on an Example, (b) is the 2nd wall body (non-) of the wall body structure which concerns on an Example. It is a figure which shows the simulation result of the bending moment of (loading side). (A) is a figure which shows the simulation result of the displacement amount of the 1st wall body (loading side) of the wall structure which concerns on a comparative example, (b) is the 2nd wall body (non-) of the wall structure which concerns on a comparative example It is a figure which shows the simulation result of the displacement amount of (loading side). (A) is a figure which shows the simulation result of the bending moment of the 1st wall body (loading side) of the wall body structure which concerns on a comparative example, (b) is the 2nd wall body (non-) of the wall body structure which concerns on a comparative example It is a figure which shows the simulation result of the bending moment of (loading side). (A) is a top view which shows the wall body structure which uses the conventional connection member (tie rod and abdominal erection), (b) is the side view.

  Hereinafter, the form for implementing the wall structure 1 to which this invention is applied is demonstrated in detail, referring drawings.

  As shown in FIG. 1, the wall structure 1 to which the present invention is applied is mainly a temporary deadline structure that is temporarily used or a water structure that is permanently used (a revetment, a quay, a breakwater, a dike, etc.) -A land structure (retaining wall, retaining wall, etc.) provided at the boundary between the front side A and the back side B. A wall structure 1 to which the present invention is applied is a wall structure 1 having a filling material 13. The wall structure 1 to which the present invention is applied includes a steel pipe sheet pile, a steel pipe pile, a concrete sheet pile, a hat-shaped steel sheet pile, a U-shaped steel sheet pile, or a double joint sheet pile in the wall width direction X. A plurality of first walls 8A connected to each other, standing upright in the wall thickness direction Z from the first wall 8A, and steel pipe sheet piles, steel pipe piles, concrete sheet piles, hat-shaped steel sheet piles, U-shaped steel sheet piles or two Between the second wall body 8B in which a plurality of wall body constituting members 2 such as heavy joint sheet piles are connected in the wall width direction X, and the first wall body 8A and the second wall body 8B constituting the pair of wall bodies. And a filling material 13 filled to a predetermined depth.

  Further, in the wall body structure 1 to which the present invention is applied, the connecting member to which the wall bodies of the first wall body 8A and the second wall body 8B are connected to each other and a tensile force is applied is omitted. Further, the first wall body 8A and the second wall body 8B are erected on the ground 80 by being rooted by a predetermined length from the ground surface, and the root portion 8C rooted in the ground 80 and the ground 80 Each has a protruding portion 8D protruding by a predetermined length.

  A plurality of steel pipe sheet piles, steel pipe piles, concrete sheet piles, hat-shaped steel sheet piles, U-shaped steel sheet piles, or double joint sheet piles are not limited to this, but are embedded in the ground 80 or are erected on footing concrete It can also be. In the following description of each embodiment, among the joints of the wall member 2 adjacent to each other in the wall width direction X, the joint of the wall member 2 erected in advance is a female. The joint of the wall member 2 that is set up as a joint and is set up as a male joint is used as the joint, but it may be reversed. Further, the ground 80 includes a water bottom ground and a sea bottom ground.

  First, a first embodiment of a wall structure 1 to which the present invention is applied will be described. A wall member 2 of the wall structure 1 to which the present invention is applied is provided at the boundary between the front surface side A and the back surface side B. As shown in FIG. A hat-shaped hat-shaped steel sheet pile 6 is used.

  The wall constituting member 2 uses a hat-shaped steel sheet pile 6 having a substantially hat-shaped cross section. The wall constituting member 2 of the hat-shaped steel sheet pile 6 includes a flange portion 61, a pair of web portions 62, a pair of arm portions 63, a female joint 64, and a male joint 65. The pair of web portions 62 are continuously provided so as to be inclined from both ends of the flange portion 61 in the wall width direction X of the hat-shaped steel sheet pile 6. The pair of arm portions 63 are provided continuously from each of the pair of web portions 62 so as to be substantially parallel to the flange portion 61. The female joint 64 and the male joint 65 are provided continuously from one end of each of the pair of arm portions 63.

  The hat-shaped steel sheet pile 6 has a male joint 65 at one side end in the wall width direction X and a female joint 64 at the other side end in the wall width direction X among both side ends along the axial direction Y. Each is provided. When the wall body 8 is constructed by connecting the plurality of wall body constituting members 2 in the wall width direction X, the male joint of the other hat-shaped steel sheet pile 6 is connected to the female joint 64 of the one hat-shaped steel sheet pile 6 adjacent to each other. 65 is fitted.

  As shown in FIG. 3, the wall structure 1 is a first structure constructed by separating a plurality of hat-shaped steel sheet piles 6 in the wall thickness direction Z so as to be separated from each other in the wall thickness direction Z by connecting them in the wall width direction X. A filling material 13 such as sand, gravel, soil cement, or slag is filled between the wall body 8A and the second wall body 8B.

  As shown in FIG. 4, the hat-shaped steel sheet pile 6 includes a first section S1 in which the female joint 64 is continuously installed at the other side end portion, and a second section S2 in which the female joint 64 is not continuously installed. You may have. In the example shown in FIG. 4, the second section S <b> 2 in which the female joint 64 is not continuously installed is arranged on the lower end side of the other side end portion of the hat-shaped steel sheet pile 6, but the female joint 64 is also on the upper end side. You may arrange | position 2nd area S2 where is not continuously installed.

  As shown in FIG. 5, the hat-shaped steel sheet pile 6 has a second section S <b> 2 at the other side end alternately in a region S <b> 3 where the female joint 64 is not provided and a region S <b> 4 where the female joint 64 is provided. It may be an existing section.

  As shown in FIG. 6, the hat-shaped steel sheet pile 6 may have a water permeable hole 6 </ b> H provided in a predetermined range in the axial direction Y, for example, a range where a groundwater flow exists.

  In the wall structure 1 to which the present invention is applied, as shown in FIG. 7, the filling member 13 filled between the first wall body 8A and the second wall body 8B has a hat-shaped upper end position P1. The upper end P2 of the steel sheet pile 6 may be substantially the same. Further, as shown in FIG. 8, the wall structure 1 to which the present invention is applied has a hat-shaped upper end position P1 of the filling material 13 filled between the first wall body 8A and the second wall body 8B. It may be lower than the upper end P2 of the steel sheet pile 6.

  In the wall body 8 shown in FIG. 7, the region A embedded in the ground 80 behaves as a beam that receives the ground reaction force, and the region B filled with the filling material 13 is integrated with the filling material 13. Behaves as a beam. In addition, in the wall body 8 shown in FIG. 8, the region A embedded in the ground 80 behaves as a beam that receives the ground reaction force, and the region B filled with the filling material 13 is integrated with the filling material 13. The region C above the filling material 13 behaves as a normal beam.

  Further, as shown in FIG. 9, the wall structure 1 to which the present invention is applied has a protrusion amount L1 from the ground 80 of the first wall 8A and a protrusion amount L2 from the ground 80 of the second wall 8B. It may be configured differently. In this case, among the first wall body 8A and the second wall body 8B, the protruding amount of the loading-side wall body (the first wall body 8A in FIG. 9) on which horizontal external forces such as water pressure and earth pressure are loaded is increased. However, it may correspond to the rise in water level.

  In the wall structure 1 to which the present invention is applied, the cross-sectional shape in the wall thickness direction Z of the surface 13S of the filling material 13 may be a horizontal plane, as shown in FIG. As shown in FIG. 10, the surface 13 </ b> S of the filling material 13 may have an inclined surface in a cross-sectional shape in the wall thickness direction Z. Furthermore, as shown in FIG. 11, the surface 13S of the filling material 13 has a shape in which the cross-sectional shape in the wall thickness direction Z includes a horizontal surface and an inclined surface, for example, a shape that combines a horizontal surface such as a trapezoid and an inclined surface. There may be.

  Moreover, as shown in FIG. 12, the wall structure 1 to which the present invention is applied is configured such that the protruding amount of the loading-side first wall 8A on which a horizontal external force such as water pressure and earth pressure is loaded is large, and The surface 13S of the filling material 13 may have a shape in which the cross-sectional shape in the wall thickness direction Z is a combination of a horizontal surface and an inclined surface such as a trapezoidal shape. In this case, the surface 13S of the filling material 13 has a height on the side of the first wall 8A on the loading side where a horizontal external force such as water pressure and earth pressure is loaded, so that the horizontal external force such as water pressure and earth pressure is not loaded. You may make it higher than the height in the 2nd wall 8B side by the side of a load, and respond | correspond to a water level rise. In addition, the water-absorbing swelling water-stopping material is provided in a predetermined region 8E of the fitting portion of the male joint 65 and the female joint 64 of the steel sheet pile 6, for example, at the fitting portion that exists (positioned) at least above the upper surface of the filling material 13. You may give the water stop process by.

  In the wall structure 1 to which the present invention is applied, the rigidity of the first wall body 8A and the rigidity of the second wall body 8B may be different. For example, the steel sheet pile model applied to the second wall body 8B may be made larger than the steel sheet pile model applied to the first wall body 8A.

  Moreover, in the wall body structure 1 to which the present invention is applied, the wall body constituting members 2 constituting the first wall body 8A and the second wall body 8B may have different rigidity in the axial direction Y (vertical direction). . In this case, in order to increase the rigidity in the vicinity of the ground 80 where the maximum bending moment (extreme value) is generated, as shown in FIG. 13, the wall body constituting member 2 constituting the first wall body 8A and the second wall body 8B. It is preferable to make the thickness near the ground 80 thicker than other regions.

  Next, a second embodiment of the wall structure 1 to which the present invention is applied will be described. In addition, about the component same as the component mentioned above, the description below is abbreviate | omitted by attaching | subjecting the same code | symbol. As shown in FIG. 14, the wall structure 1 to which the present invention is applied uses a steel sheet pile having a substantially U-shaped cross section in the second embodiment.

  The wall structure 1 of the second embodiment includes a first wall 8A and a second wall 8B in which a plurality of wall members 2 of the U-shaped steel sheet pile 7 are connected in the wall width direction X, and a wall thickness direction Z. And a filling material 13 filled between the first wall body 8A and the second wall body 8B which are provided upright apart from each other. Further, in the wall body structure 1 of the second embodiment, a connecting member that connects the first wall body 8A and the second wall body 8B to each other to apply a tensile force is omitted.

  The wall constituting member 2 uses a U-shaped steel sheet pile 7 having a substantially U-shaped cross section. The wall member 2 of the U-shaped steel sheet pile 7 includes a flange portion 71, a pair of web portions 72, a female joint 74, and a male joint 75. The pair of web portions 72 are continuously provided so as to be inclined from both ends of the flange portion 71 in the width direction X of the U-shaped steel sheet pile 7. The female joint 74 and the male joint 75 are provided continuously from one end of each of the pair of web portions 72.

  The U-shaped steel sheet pile 7 has a male joint 75 at one side end in the wall width direction X and a female joint 74 at the other side end in the wall width direction X among both side ends along the axial direction Y. Each is provided. When the wall body 8 is constructed by connecting the plurality of wall body constituting members 2 in the wall width direction X, the male joint of the other U-shaped steel sheet pile 7 is connected to the female joint 74 of one U-shaped steel sheet pile 7 adjacent to each other. 75 is fitted.

  The wall structure 1 includes a first wall 8 </ b> A and a second wall that are constructed separately from each other in the wall thickness direction Z by standing on the ground 80 while connecting a plurality of U-shaped steel sheet piles 7 in the wall width direction X. The body 8B is configured by filling a filling material 13 such as sand, gravel, soil cement, or slag.

  As in the first embodiment, the U-shaped steel sheet pile 7 includes a first section in which the female joint 74 is continuously installed at the other side end, and a second section in which the female joint 74 is not continuously installed. You may have a section. Moreover, the U-shaped steel sheet pile 7 may arrange | position the 2nd area where the female joint 74 is not continuously installed also in the upper end side of the other side edge part. Further, the U-shaped steel sheet pile 7 may have the second section at the other side end as a section in which regions where the female joints 74 are not provided and regions where the female joints 74 are provided alternately exist.

  Similarly to the first embodiment, the U-shaped steel sheet pile 7 may have water-permeable holes provided in a predetermined range in the axial direction Y. Further, the filling material 13 filled between the first wall body 8A and the second wall body 8B may have the upper end position substantially the same as the upper end of the U-shaped steel sheet pile 7 or may be lower. .

  Similarly to the first embodiment, the protruding amount of the first wall 8A from the ground 80 and the protruding amount of the second wall 8B from the ground 80 may be different. Further, the surface of the filling material 13 may have a horizontal plane or an inclined plane in cross section in the wall thickness direction Z. Further, the surface 13S of the filling material 13 may have a shape in which the cross-sectional shape in the wall thickness direction Z includes a horizontal surface and an inclined surface, for example, a shape in which a horizontal surface such as a trapezoidal shape and an inclined surface are combined.

  Further, similarly to the first embodiment, the protruding amount of the loading-side first wall body 8A on which a horizontal external force such as water pressure and earth pressure is loaded is configured to be large, and the surface of the filling material 13 has a wall thickness. The cross-sectional shape in the direction Z may be a shape in which a horizontal surface such as a trapezoidal shape and an inclined surface are combined. Further, the water-absorbing swelled water stops at a predetermined region of the fitting portion of the male joint 75 and the female joint 74 of the U-shaped steel sheet pile 7, for example, at the fitting portion existing (positioned) at least above the upper surface of the filling material 13. You may perform the water stop process with a material.

  Similarly to the first embodiment, the rigidity of the first wall 8A and the rigidity of the second wall 8B may be different. Similarly to the first embodiment, the wall member constituting member 2 constituting the first wall body 8A and the second wall body 8B may have different rigidity in the axial direction Y (vertical direction).

  Next, a third embodiment of the wall structure 1 to which the present invention is applied will be described. In addition, about the component same as the component mentioned above, the description below is abbreviate | omitted by attaching | subjecting the same code | symbol. As shown in FIG. 15, the wall structure 1 to which the present invention is applied uses a concrete sheet pile 5 having a substantially rectangular cross section in the third embodiment.

  The wall structure 1 of the third embodiment is separated in the wall thickness direction Z from the first wall body 8A and the second wall body 8B in which a plurality of wall body constituting members 2 of the concrete sheet pile 5 are connected in the wall width direction X. And a filling material 13 filled between the first wall body 8A and the second wall body 8B which are erected. Further, in the wall body structure 1 of the third embodiment, a connecting member that connects the first wall body 8A and the second wall body 8B to each other to apply a tensile force is omitted.

  The wall constituting member 2 uses a concrete sheet pile 5 having a substantially rectangular cross section. The wall constituting member 2 of the concrete sheet pile 5 is, for example, a plate-like concrete wall in which a concave portion 51 (a hollow portion) is provided along the axial direction Y at the center. In addition, the concrete sheet pile 5 has two suspension holes 54 for passing a wire, a rope, a rope, etc. for hanging on the upper part of the recessed part 51 (recessed part). Furthermore, the concrete sheet pile 5 is provided with a notch 55 at the tip on the right side (the side where the male joint 52 is provided) as viewed in FIG.

  The concrete sheet pile 5 has a male joint 52 at one side end in the wall width direction X and a female joint 53 at the other side end in the wall width direction X among both side ends along the axial direction Y. Provide each. When the wall body 8 is constructed by connecting a plurality of wall body constituting members 2 in the wall width direction X, the male joint 52 of the other concrete sheet pile 5 is connected to the female joint 53 of one concrete sheet pile 5 adjacent to each other. It will be fitted.

  The wall structure 1 includes a first wall body 8A and a second wall body that are constructed separately from each other in the wall thickness direction Z by standing on the ground 80 while connecting a plurality of concrete sheet piles 5 in the wall width direction X. Between 8B, it is constituted by filling a filling material 13 such as sand, gravel, soil cement, or slag.

  As in the first embodiment, the concrete sheet pile 5 includes a first section in which the female joint 53 is continuously installed at the other side end, and a second section in which the female joint 53 is not continuously installed. You may have. Moreover, the concrete sheet pile 5 may arrange | position the 2nd area where the female joint 53 is not continuously installed also in the upper end side of the other side edge part. Furthermore, the concrete sheet pile 5 is good also considering the 2nd area | region which has in the other side edge part as an area where the area | region in which the female joint 53 is not provided, and the area | region in which the female joint 53 is provided alternately.

  Moreover, like the first embodiment, the concrete sheet pile 5 may have water-permeable holes provided in a predetermined range in the axial direction Y. Further, the filling material 13 filled between the first wall body 8A and the second wall body 8B may have the upper end position substantially the same as the upper end position of the concrete sheet pile 5 or may be lower.

  Similarly to the first embodiment, the protruding amount of the first wall 8A from the ground 80 and the protruding amount of the second wall 8B from the ground 80 may be different. Further, the surface of the filling material 13 may have a horizontal plane or an inclined plane in cross section in the wall thickness direction Z. Further, the surface 13S of the filling material 13 may have a shape in which the cross-sectional shape in the wall thickness direction Z includes a horizontal surface and an inclined surface, for example, a shape in which a horizontal surface such as a trapezoidal shape and an inclined surface are combined.

  Further, similarly to the first embodiment, the protruding amount of the loading-side first wall body 8A on which a horizontal external force such as water pressure and earth pressure is loaded is configured to be large, and the surface of the filling material 13 has a wall thickness. The cross-sectional shape in the direction Z may be a shape in which a horizontal surface such as a trapezoidal shape and an inclined surface are combined. Further, a predetermined region of the fitting portion of the male joint 55 and the female joint 54 of the concrete sheet pile 5, for example, a fitting portion existing (positioned) above the upper surface of the filling material 13 is made of a water-absorbing swelling water-stopping material. You may give a still water treatment.

  Similarly to the first embodiment, the rigidity of the first wall 8A and the rigidity of the second wall 8B may be different. Similarly to the first embodiment, the wall member constituting member 2 constituting the first wall body 8A and the second wall body 8B may have different rigidity in the axial direction Y (vertical direction).

  Next, a fourth embodiment of the wall structure 1 to which the present invention is applied will be described. In addition, about the component same as the component mentioned above, the description below is abbreviate | omitted by attaching | subjecting the same code | symbol. As shown in FIG. 16, the wall structure 1 to which the present invention is applied is a box-shaped member 91 having a substantially rectangular cross section and a linear sheet pile 92 provided at a corner of the box-shaped member 91 in the fourth embodiment. The double joint sheet pile 9 comprised by these is used.

  The wall body structure 1 of the fourth embodiment includes a first wall body 8A and a second wall body 8B in which a plurality of wall body constituting members 2 of the double joint sheet pile 9 are connected in the wall width direction X, and a wall thickness direction Z. And a filling material 13 filled between the first wall body 8A and the second wall body 8B which are provided upright apart from each other. Further, in the wall body structure 1 of the fourth embodiment, a connecting member that connects the first wall body 8A and the second wall body 8B to each other to apply a tensile force is omitted.

  As the wall constituting member 2, a double joint sheet pile 9 constituted by a box-shaped member 91 having a substantially rectangular cross section and a linear sheet pile 92 provided at a corner of the box-shaped member 91 is used. In the fourth embodiment, the double joint sheet pile 9 uses a box-shaped member 91 having a substantially rectangular cross section as a main body. At this time, as shown in FIG. 16, the box-shaped member 91 is surrounded by a pair of short side portions 91a and a pair of long side portions 91b that are formed in a substantially flat plate shape.

  The box-shaped member 91 is attached to each of four corners that are boundaries between the pair of short sides 91a and the pair of long sides 91b. . In the straight sheet pile 92, the female joint 93 or the male joint 94 is formed on one end side in the wall width direction X, and the female joint 93 or the male joint 94 is not formed on the other end side in the wall width direction X. The straight sheet pile 92 is formed with the female joint 93 or the male joint 94 by welding the other end side where the female joint 93 or the male joint 94 is not formed to each of the four corners of the box-shaped member 91. One end side is extended and arranged on both sides in the wall width direction X.

  The linear sheet piles 92 are attached to four locations at the corners of the box-shaped member 91, and the female joint 93 on one end side of the linear sheet pile 92 is provided on each of the front side A and the rear side B in the wall thickness direction Z. Alternatively, the male joint 94 is disposed so as to extend in the wall width direction X, so that a pair of female joints 93 or male joints 94 on the front side A and the back side B in the wall thickness direction Z forms a main body. The member 91 is provided with a double joint.

  The double joint sheet pile 9 has a pair of male joints 94 at one side end portion in the wall width direction X and a pair at the other side end portion in the wall width direction X among both side end portions along the axial direction Y. Female joints 93 are provided. When the wall body 8 is constructed by connecting the plurality of wall body constituting members 2 in the wall width direction X, one pair of female joints 93 of the double joint sheet piles 9 adjacent to each other are connected to the other double joint sheet pile 9. A pair of male joints 94 are fitted.

  The wall body structure 1 includes a first wall body 8A and a second wall that are constructed separately from each other in the wall thickness direction Z by standing on the ground 80 while connecting a plurality of double joint sheet piles 9 in the wall width direction X. The body 8B is configured by filling a filling material 13 such as sand, gravel soil cement, or slag.

  As in the first embodiment, the double joint sheet pile 9 includes a first section in which the female joint 93 is continuously installed at the other side end, and a second section in which the female joint 93 is not continuously installed. You may have a section. Moreover, the double joint sheet pile 9 may arrange | position the 2nd area where the female joint 93 is not continuously installed also in the upper end side of the other side edge part. Furthermore, the double joint sheet pile 9 is good also considering the 2nd area | region which has the other side edge part as an area where the area | region in which the female joint 93 is not provided, and the area | region in which the female joint 93 is provided alternately.

  Similarly to the first embodiment, the double joint sheet pile 9 may have water-permeable holes provided in a predetermined range in the axial direction Y. Further, the filling material 13 filled between the first wall body 8A and the second wall body 8B may have the upper end position substantially the same as the upper end position of the double joint sheet pile 9 or may be lower. .

  Similarly to the first embodiment, the protruding amount of the first wall 8A from the ground 80 and the protruding amount of the second wall 8B from the ground 80 may be different. Further, the surface of the filling material 13 may have a horizontal plane or an inclined plane in cross section in the wall thickness direction Z. Further, the surface 13S of the filling material 13 may have a shape in which the cross-sectional shape in the wall thickness direction Z includes a horizontal surface and an inclined surface, for example, a shape in which a horizontal surface such as a trapezoidal shape and an inclined surface are combined.

  Further, similarly to the first embodiment, the protruding amount of the loading-side first wall body 8A on which a horizontal external force such as water pressure and earth pressure is loaded is configured to be large, and the surface of the filling material 13 has a wall thickness. The cross-sectional shape in the direction Z may be a shape in which a horizontal surface such as a trapezoidal shape and an inclined surface are combined. Further, in a predetermined region of the fitting portion of the male joint 94 and the female joint 93 of the double joint sheet pile 9, for example, the fitting portion existing (positioned) above the upper surface of the filling material 13, the water-absorbing swelling water-stopping material. You may give the water stop process by.

  Similarly to the first embodiment, the rigidity of the first wall 8A and the rigidity of the second wall 8B may be different. Similarly to the first embodiment, the wall member constituting member 2 constituting the first wall body 8A and the second wall body 8B may have different rigidity in the axial direction Y (vertical direction).

  Next, a fifth embodiment of the wall structure 1 to which the present invention is applied will be described. In addition, about the component same as the component mentioned above, the description below is abbreviate | omitted by attaching | subjecting the same code | symbol. As shown in FIG. 17, the wall structure 1 to which the present invention is applied uses a plurality of steel pipe piles 4 and a closing material 42 that closes gaps between the plurality of steel pipe piles 4 in the fifth embodiment.

  The wall body structure 1 of the fifth embodiment was erected so as to close the gaps between the plurality of steel pipe piles 4 erected at predetermined intervals in the wall width direction X and the plurality of steel pipe piles 4. It fills between the 1st wall body 8A and 2nd wall body 8B which are comprised with the obstruction | occlusion material 42, and the 1st wall body 8A and the 2nd wall body 8B which stood apart in the wall thickness direction Z. The filling material 13 is provided. Further, in the wall body structure 1 of the fifth embodiment, a connecting member that connects the first wall body 8A and the second wall body 8B to each other to apply a tensile force is omitted.

  The wall constituting member 2 uses a plurality of steel pipe piles 4 and a closing material 42 that closes gaps between the plurality of steel pipe piles 4. The wall structure 1 is composed of a plurality of steel pipe piles 4 that are erected apart from each other in the wall width direction X at an arbitrary interval, and an angle member (mountain shape) that is erected so as to close a gap between adjacent steel pipe piles 4. Steel) and the like. Further, sand, gravel, soil cement, slag, etc. are provided between the first wall 8A and the second wall 8B, in which the first wall 8A and the second wall 8B are erected apart from each other in the wall thickness direction Z. The inside filling material 13 is filled.

  Note that, similarly to the first embodiment, at least one of the steel pipe pile 4 and the closing material 42 may have a water permeable hole provided in a predetermined range in the axial direction Y. Further, the filling material 13 filled between the first wall body 8A and the second wall body 8B has substantially the same upper end position as the upper end of the wall body 8 constituted by the steel pipe pile 4 and the closing material 4. It may be low or low.

  Similarly to the first embodiment, the protruding amount of the first wall 8A from the ground 80 and the protruding amount of the second wall 8B from the ground 80 may be different. Further, the surface of the filling material 13 may have a horizontal plane or an inclined plane in cross section in the wall thickness direction Z. Further, the surface 13S of the filling material 13 may have a shape in which the cross-sectional shape in the wall thickness direction Z includes a horizontal surface and an inclined surface, for example, a shape in which a horizontal surface such as a trapezoidal shape and an inclined surface are combined.

  Further, similarly to the first embodiment, the protruding amount of the loading-side first wall body 8A on which a horizontal external force such as water pressure and earth pressure is loaded is configured to be large, and the surface of the filling material 13 has a wall thickness. The cross-sectional shape in the direction Z may be a shape in which a horizontal surface such as a trapezoidal shape and an inclined surface are combined. Further, the water stop by the water-absorbing swelling water-stopping material is provided in a predetermined region of the contact portion where the steel pipe pile 4 and the closing material 42 abut, for example, the contact portion existing (positioned) above the upper surface of the filling material 13. Processing may be performed.

  Similarly to the first embodiment, the rigidity of the first wall 8A and the rigidity of the second wall 8B may be different. Similarly to the first embodiment, the wall member constituting member 2 constituting the first wall body 8A and the second wall body 8B may have different rigidity in the axial direction Y (vertical direction).

  Next, a sixth embodiment of the wall structure 1 to which the present invention is applied will be described. In addition, about the component same as the component mentioned above, the description below is abbreviate | omitted by attaching | subjecting the same code | symbol. As shown in FIG. 18, the wall structure 1 to which the present invention is applied uses a steel pipe sheet pile 3 in the sixth embodiment.

  The wall structure 1 of the sixth embodiment is separated in the wall thickness direction Z from the first wall body 8A and the second wall body 8B in which a plurality of wall body constituent members 2 of the steel pipe sheet pile 3 are connected in the wall width direction X. And a filling material 13 filled between the first wall body 8A and the second wall body 8B which are erected. Further, in the wall body structure 1 of the sixth embodiment, the connecting member to which the first wall body 8A and the second wall body 8B are connected to each other to apply a tensile force is omitted.

  The wall constituting member 2 is a steel pipe sheet pile 3 having a substantially circular cross section. The wall constituting member 2 of the steel pipe sheet pile 3 includes a cylindrical main body 31 and a female joint 32 and a male joint 33 provided at positions facing the cylindrical main body 31. The steel pipe sheet pile 3 has a male joint 33 at one side end in the wall width direction X and a female joint 32 at the other side end in the wall width direction X among both side ends along the axial direction Y. Prepare. When the wall body 8 is constructed by connecting a plurality of wall body constituting members 2 in the wall width direction X, the male joint 33 of the other steel pipe sheet pile 3 is fitted to one female joint 32 of the steel pipe sheet pile 3 adjacent to each other. To be

  The wall structure 1 includes a first wall body 8A and a second wall body 8B that are separated from each other in the wall thickness direction Z by standing on the ground 80 while connecting a plurality of steel pipe sheet piles 3 in the wall width direction X. In between, a filling material 13 such as sand, gravel, soil cement, or slag is filled.

  As in the first embodiment, the steel pipe sheet pile 3 includes a first section where the female joint 32 is continuously installed at the other side end, and a second section where the female joint 32 is not continuously installed. You may have. Moreover, the steel pipe sheet pile 3 may arrange | position the 2nd area where the female joint 32 is not continuously installed also in the upper end side of the other side edge part. Furthermore, the steel pipe sheet pile 3 is good also considering the 2nd area | region which has in the other side edge part as an area where the area | region in which the female joint 32 is not provided, and the area | region in which the female joint 32 is provided exist alternately.

  Moreover, the steel pipe sheet pile 3 may have the water-permeable hole provided in the predetermined range by the axial direction Y similarly to 1st Embodiment. Further, the filling material 13 filled between the first wall body 8A and the second wall body 8B may have the upper end position substantially the same as the upper end of the steel pipe sheet pile 3 or may be lower.

  Similarly to the first embodiment, the protruding amount of the first wall 8A from the ground 80 and the protruding amount of the second wall 8B from the ground 80 may be different. Further, the surface of the filling material 13 may have a horizontal plane or an inclined plane in cross section in the wall thickness direction Z. Further, the surface 13S of the filling material 13 may have a shape in which the cross-sectional shape in the wall thickness direction Z includes a horizontal surface and an inclined surface, for example, a shape in which a horizontal surface such as a trapezoidal shape and an inclined surface are combined.

  Further, similarly to the first embodiment, the protruding amount of the loading-side first wall body 8A on which a horizontal external force such as water pressure and earth pressure is loaded is configured to be large, and the surface of the filling material 13 has a wall thickness. The cross-sectional shape in the direction Z may be a shape in which a horizontal surface such as a trapezoidal shape and an inclined surface are combined. In addition, a predetermined region of the fitting part of the male joint 33 and the female joint 32 of the steel pipe sheet pile 3, for example, a fitting part existing (positioned) above the upper surface of the filling material 13 is stopped by the water-absorbing swelling water-stopping material. Water treatment may be applied.

  Similarly to the first embodiment, the rigidity of the first wall 8A and the rigidity of the second wall 8B may be different. Similarly to the first embodiment, the wall member constituting member 2 constituting the first wall body 8A and the second wall body 8B may have different rigidity in the axial direction Y (vertical direction).

  The inventors have omitted the wall structure to which the present invention is applied, that is, the connecting member such as a tie rod (Example) and the wall structure not applying the present invention, that is, the connecting member such as a tie rod to the first wall body. For the case where the (loading side) and the second wall (non-loading side) are connected (comparative example), the displacement and bending moment of the wall in the axial direction Y were simulated.

  In the simulation, the first wall is a loading side wall on which a horizontal external force such as water pressure (due to flooding) is loaded, and the second wall is a non-loading side wall on which no horizontal external force is loaded. . In addition, a steel sheet pile or a steel pipe sheet pile is used for the wall member constituting the first wall body and the second wall body, and a filling material is filled between the first wall body and the second wall body. Assuming that horizontal external force such as water pressure caused by flooding is loaded on the first wall, the displacement and bending moment of the wall were simulated. That is, the simulation results of the displacement and bending moment of the wall shown in FIGS. 19 to 22 described below are a combination of the effect of filling and filling with filling material and the effect of horizontal external force such as water pressure caused by flooding. It has been made.

  FIG. 19A is a diagram illustrating a simulation result of the displacement amount of the first wall body (loading side) of the wall structure according to the embodiment, and FIG. 19B is a second view of the wall structure according to the embodiment. It is a figure which shows the simulation result of the displacement amount of a wall body (non-loading side).

  From the simulation results shown in FIG. 19, in the distribution mode of deformation of the first wall (loading side) and the second wall (non-loading side), the wall top end (upper end) has the largest displacement and goes to the lower end. It turned out that it is decreasing gradually. Moreover, it turned out that the deformation | transformation shape of a 1st wall body (loading side) and a 2nd wall body (non-loading side) turns into a deformation | transformation condition like a wave return (overhang).

  FIG. 20A is a diagram illustrating a simulation result of the bending moment of the first wall body (loading side) of the wall structure according to the embodiment, and FIG. 20B is a second view of the wall structure according to the embodiment. It is a figure which shows the simulation result of the bending moment of a wall body (non-loading side).

  From the simulation result shown in FIG. 20, the distribution mode of the bending moment of the first wall body (loading side) and the second wall body (non-loading side) is the first wall body (loading side) and the second wall body (non-loading side). It was found that both the loading side) and the filling material side were distributed so as to be bent and pulled. Moreover, it turned out that a bending moment distributes so that it may increase rapidly from a wall body top end (upper end) to a lower end also in a 1st wall body (loading side) and a 2nd wall body (non-loading side). Furthermore, it turned out that the 1st wall body (loading side) and the 2nd wall body (non-loading side) have the extreme value (maximum value) of the bending moment in the ground at a position slightly lowered from the ground surface.

  FIG. 21A is a diagram showing a simulation result of a displacement amount of the first wall body (loading side) of the wall structure according to the comparative example, and FIG. 21B is a second view of the wall structure according to the comparative example. It is a figure which shows the simulation result of the displacement amount of a wall body (non-loading side).

  From the simulation results shown in FIG. 21, it was found that the mode of distribution of displacement between the first wall (loading side) and the second wall (loading side) is different. Moreover, the top end of the first wall (loading side) is displaced toward the filling material side, and is displaced so as to protrude from the opposite side (river side (outside of the bank)) from the filling material as it goes to the ground surface. It was found that the extreme value was taken near the ground surface. In addition, the top of the second wall (non-loading side) is displaced to the inside of the levee, and as it goes to the ground surface, it is displaced so as to protrude from the side opposite to the filling material (inside the dam), above the ground surface. It was found that extreme values were taken at the site.

  FIG. 22A is a diagram showing a simulation result of the bending moment of the first wall (loading side) of the wall structure according to the comparative example, and FIG. 22B is a second view of the wall structure according to the comparative example. It is a figure which shows the simulation result of the bending moment of a wall body (non-loading side).

  According to the simulation results shown in FIG. 22, the first wall (loading side) is a section between the first zero point of the underground bending moment and the vicinity of the tie material attachment point, on the opposite side (river side (bank) It was found that the bending moment distribution mode (outside of the wall body is bent and pulled) that protrudes outside)). The second wall (non-loading side) is a section between the first zero point of the underground bending moment and the vicinity of the tie material attachment point, and the bending moment that protrudes from the opposite side of the filling material (inside the bank). It was found that the distribution mode of (the outside of the wall was bent and pulled) was exhibited. Further, the first wall body (loading side) and the second wall body (non-loading side) exhibit a bending moment distribution mode that protrudes toward the filling material side in the ground (below the ground surface), and It was found to have an extreme value.

  As described above, the wall structure 1 to which the present invention is applied includes the first wall body 8A in which a plurality of wall body constituting members 2 are connected in the wall width direction X, as shown in FIGS. , A second wall body which is erected apart from the first wall body 8A in the wall thickness direction Z and in which the plurality of wall body component members 2 are connected in the wall width direction X, and the first wall body 8A and the second wall A filling material 13 filled to a predetermined depth is provided between the body 8B and the body 8B. In the wall structure 1, a connecting member to which a tensile force is applied by connecting the wall bodies of the first wall body 8A and the second wall body 8B is omitted.

  As a result, the wall on the loading side (river side) is deformed into a so-called “wave-turning” shape in which the middle part in the axial direction (longitudinal direction) is depressed, so that the shape inclined to the river side from the ground surface to the upper part Therefore, the flow of the flood is difficult to go up the wall. Similarly, drifting objects such as driftwood and falling objects are difficult to move up the wall. For this reason, it is possible to more reliably protect assets and assets existing inside the wall structure (inside the bank) from flooding and flooding due to typhoons and heavy rain.

  Further, the wall structure 1 to which the present invention is applied has a relatively small bending moment above the ground surface, and is distributed so that the filling material 13 side opposite to the outer side (river side) is bent and pulled. To do. And since the maximum bending moment (extreme value) occurs in the ground below the ground surface, it has an advantage that it is difficult to receive damage due to the collision of drifting objects such as driftwood and falling objects. In addition, the amount of corrosion and wear is low in the ground.

  In addition, the wall structure 1 to which the present invention is applied eliminates the need to prepare a wide variety of materials such as a tie material, an abdomen (grooved steel, H-shaped steel), a bracket, a bolt and a nut. For this reason, materials can be procured quickly and easily, and construction can be started early. Also, in the construction of the wall structure, the step of connecting the first wall body 8A and the second wall body 8B by an abdomen, a tie material, or an inclined steel sheet pile partition wall becomes unnecessary, and after the steel sheet pile is placed All you need to do is fill the filling material and compact. For this reason, the wall structure can be constructed in a very short construction period. Further, since there is no connecting member for connecting the first wall body 8A and the second wall body 8B, the filling operation and the compacting operation of the filling material 13 are easy, and the compacting quality can be easily secured.

  As a result, it is possible to quickly perform urgent work such as repair work on a broken levee. In addition, dismantling and removal after completion of restoration work can be performed quickly. Further, not only the construction period is shortened, but also the construction cost can be reduced because the types of materials used for constructing the wall structure 1 are reduced. Furthermore, when the wall structure 1 is disassembled and removed, it is only necessary to pull out the wall constituting member 2 after discharging the filling material 13, so that the dismantling and removal work can be performed in a very short time.

  In addition, as shown in FIG. 12, a fitting portion existing (positioned) above a predetermined region 8E of the fitting portion of the male joint 65 and the female joint 64 of the steel sheet pile 6, for example, at least above the upper surface of the filling material 13. A water-stopping treatment with a water-absorbing swelling water-stopping material may be performed. In this case, water leakage from the fitting portion can be prevented by the water stop treatment.

  Moreover, as shown in FIGS. 3 and 14 to 18, the wall structure 1 to which the present invention is applied is composed of a steel sheet pile, a steel pipe sheet pile 3, a concrete sheet pile 5, and a box having a substantially rectangular cross section. It is comprised by either of the double joint sheet piles 9 comprised with the type | mold member 91 and the linear sheet pile 92. FIG. Thereby, the wall structure 1 includes a steel sheet pile, a steel pipe sheet pile 3, a concrete sheet pile 5, a box-shaped member 91 having a substantially rectangular cross section, and a linear sheet pile 92 provided at a corner of the box-shaped member 91. Since it can construct | assemble using existing steel members, such as the comprised double joint sheet pile 9, a construction work period and construction cost are reduced.

  In addition, as shown in FIGS. 3, 14 to 16, and 18, the wall structure member 2 to which the present invention is applied includes the wall structure member 2 in the wall width direction among both end portions along the axial direction Y. In X, a male joint is provided at one side end, and in the wall width direction X, a female joint is provided at the other side end. When the wall body 8 is constructed by connecting a plurality of wall body constituent members 2 in the wall width direction X, the female joint of one wall body constituent member 2 adjacent to each other and the male joint of the other wall body constituent member 2 are fitted. The wall body 8 which comprises the wall body structure 1 by connecting the some wall body structural member 2 to the wall width direction X easily can be constructed | assembled by repeating standing up on a ground, making it match.

  Moreover, as shown in FIG. 4, the wall structure 1 to which the present invention is applied has a section S <b> 1 in which the female joint 64 is not installed continuously or intermittently at the other side end of the wall structure member 2. . Thereby, the crease occurring between the female joint 64 and the male joint 65 of the wall member 2 can be reduced, and the wall member 2 can be easily penetrated into the ground 80. Is installed in the wall width direction X, and the construction speed and construction accuracy when constructing the wall body 8 are improved. Moreover, since it has the area where the female joint 64 is not installed, the weight of the wall structural member 2 becomes light and the handling becomes easy. Moreover, since the deformation | transformation and melt | fusion of the wall body structural member 2 by a stick can also be suppressed, the frequency | count of reuse of the wall body structural member 2 increases. In addition, since the second section S2 in which the female joint 64 is not continuously installed functions as a water permeable hole, the trouble of separately providing the water permeable hole can be saved.

  The wall structure 1 to which the present invention is applied has a second section S2 where the female joint 64 of the wall member 2 is not continuously installed on the lower end side of the other side end portion of the wall member 2. Yes. Usually, since the stress generated on the lower end side of the wall member 2 having a small bending moment is small, the female joint 64 is provided by having the second section S2 on the lower end side of the other side end of the wall member 2. It is possible to minimize the influence of the deterioration of the cross-sectional performance due to the absence.

  As shown in FIG. 17, the wall structure 1 to which the present invention is applied includes a plurality of steel pipe piles 4 and a blocking material 42 that closes gaps between the plurality of steel pipe piles 4. . As a result, it is not necessary to fit the male joint of the wall constituent member 2 that is erected and fit to the female joint of the wall constituent member 2 that is erected in advance, and to stand on the ground. Time can be shortened. Moreover, since the steel pipe pile 4 is used, it can be set as the wall body structure 1 which has the optimal cross-sectional structure.

  Further, in the wall structure 1 to which the present invention is applied, as shown in FIG. 8, the upper end position of the filling member 13 is lower than the upper end of the wall constituting member 2. Thereby, the kind of structure type which resists horizontal external force can be made abundant.

Moreover, as shown in FIG. 6, the wall structure 1 to which the present invention is applied is such that the wall constituting member 2 has a water permeability hole provided in a predetermined range in the axial direction Y, for example, a range where a groundwater flow exists. 6H.
Thereby, the influence which it has on the surrounding underground environment can be reduced, without inhibiting the flow of groundwater.

  As mentioned above, although the example of embodiment of this invention was demonstrated in detail, all the embodiment mentioned above showed only the example of actualization in implementing this invention, and these are the technical aspects of this invention. The range should not be interpreted in a limited way.

1: Wall body structure 2: Wall body structural member 3: Steel pipe sheet pile (wall body structural member)
31: Cylindrical body part 32: Female joint 33: Male joint 4: Steel pipe pile (wall member)
42: Closure material (wall member)
5: Concrete sheet pile (wall body component)
51: Concave part (dent part)
52: Male joint 53: Female joint 54: Suspension hole 55: Notch 6: Hat-shaped steel sheet pile (wall member)
61: Flange part 62: Web part 63: Arm part 64: Female joint 65: Male joint 7: U-shaped steel sheet pile (wall member)
71: Flange part 72: Web part 74: Female joint 75: Male joint 8: Wall body 8A: First wall body 8B: Second wall body 8C: Root part 8D: Protruding part 8E: Predetermined area 80: Water bottom ground 81: Sea surface 82: Upper concrete 83: Groundwater level 84: Piping hole 85: Main earth pressure 86: Passive earth pressure 9: Double joint sheet pile (wall body component)
91: Box-shaped member 92: Straight sheet pile 93: Female joint 94: Male joint 95: Virtual ground 13: Filling material 13S: Surface 14: Steel sheet pile 15: Steel sheet pile wall 16: Raising 17: Connecting member 18: Filling Material 19: Wall structure A: Front side B: Back side X: Wall width direction Y: Axial core direction Z: Wall thickness direction

Claims (13)

A wall structure having a filling material,
A first wall body in which a plurality of wall body component members are coupled in the wall width direction;
A second wall body that is erected apart from the first wall body in the wall thickness direction, and a plurality of wall body component members are connected in the wall width direction;
A filling material filled to a predetermined depth between the first wall body and the second wall body,
A wall member structure characterized in that a connecting member that connects the wall bodies of the first wall body and the second wall body and is given a tensile force is omitted. 2. The wall structure according to claim 1, wherein the first wall body and the second wall body each have a protruding portion protruding by a predetermined length from the ground surface. The wall structure according to claim 2, wherein a protruding amount of the first wall body from the ground is different from a protruding amount of the second wall body from the ground. 4. The wall structure according to claim 3, wherein, of the first wall body and the second wall body, the protruding amount of the loaded side wall body having a wider range of action of horizontal external force is large. 5. The wall structure according to claim 1, wherein each of the first wall body and the second wall body has an intrusion portion that is rooted by a predetermined length from the ground surface. The wall structure according to any one of claims 1 to 5, wherein a surface of the filling material has a horizontal plane in the wall thickness direction. The wall structure according to any one of claims 1 to 5, wherein the surface of the filling material has an inclined surface in a cross-sectional shape in the wall thickness direction. The wall structure according to any one of claims 1 to 5, wherein the surface of the filling material includes a horizontal plane and an inclined plane in a cross-sectional shape in the wall thickness direction. The wall member is a male joint at one side end of both side ends along the axial direction, and the other wall member adjacent to the other side end in the wall width direction. Each has a female joint that mates with a male joint,
The wall structure according to any one of claims 1 to 8, wherein a water stop treatment is applied to a predetermined region of a fitting portion of the male joint and the female joint. The wall structure according to any one of claims 1 to 9, wherein the rigidity of the first wall body is different from the rigidity of the second wall body. The wall body structure according to any one of claims 1 to 10, wherein the wall body constituting member has different rigidity in an axial direction. The wall member is a steel sheet pile, steel pipe sheet pile, concrete sheet pile, and a double joint sheet pile composed of a box-shaped member having a substantially rectangular cross section and a joint member provided at a corner of the box-shaped member, The wall structure according to any one of claims 1 to 11, wherein the wall structure is formed of any one of the following. The wall structure according to any one of claims 1 to 11, wherein the wall body includes a plurality of steel pipe piles and a closing material that closes gaps between the plurality of steel pipe piles.

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