JP2006322226A - Steel sheet pile with bolt, its construction method, steel sheet pile body for use in the method, and perforated steel plate with steel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispense with welding work after the insertion of a steel sheet pile, while enabling the steel sheet pile to be inserted by a press-in machine, a perforated steel plate is joined to the steel sheet pile for being used as an earth retaining wall and a sheathing board of a structure, in the construction of the structure of the reinforced concrete in the ground. <P>SOLUTION: This steel sheet piles are inserted into the ground while adjoining each other in the circumferential direction of the structure 7 constructed from the reinforced concrete, so as to enclose the structure 7 to be constructed in the ground. A bolt 3 is joined or connected to a steel sheet pile body 2 constituting the steel sheet pile, and a shank of the bolt 3 is protruded from a surface, directed to the side of the structure 7, of the steel sheet pile body 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is a steel sheet pile with a bolt that is used as a retaining wall and a structural plate when a reinforced concrete structure such as a footing is constructed in the ground, and is inserted into the ground using a press-fitting machine, and the like. It is related with the construction method of the steel sheet pile with a bolt using it.

When constructing a reinforced concrete structure such as a footing in the ground, a steel sheet pile that also serves as a shearing force transmission member to the ground and the ground is inserted in the ground while retaining the mountain. After discharging the earth and sand in the region surrounded by the steel sheet piles, reinforcing bars are placed and concrete is placed (see Patent Document 1).
In this case, a perforated steel sheet may be welded to the inner peripheral surface (surface on the structure side) of the steel sheet pile in order to transmit the shearing force in the vertical direction from the concrete to the steel sheet pile (see Patent Document 2).

JP 2003-138777 A (paragraphs 0041-0045, FIG. 3) JP 2002-013134 A (Claim 1, paragraphs 0035 to 0065, FIGS. 1 to 3, FIGS. 5 to 10)

Steel sheet piles are often inserted using a press-fitting machine that generates less vibration, but the chuck of the press-fitting machine sandwiches the sheet pile web in the thickness direction, so when using a press-fitting machine, the steel sheet pile is inserted. A perforated steel sheet cannot be welded to a steel sheet pile before.
Therefore, the time when the perforated steel sheet is welded to the steel sheet pile is after the steel sheet pile is inserted into the ground and the earth and sand surrounded by the steel sheet pile is discharged. Is extremely reduced. In addition, since welding is performed along the vertical plane, welding droop occurs, and the reliability of the welding itself also decreases.

  According to the present invention, a steel sheet pile with a bolt that eliminates the need for welding work after insertion of a steel sheet pile, while joining a perforated steel sheet, while allowing insertion of a steel sheet pile using a press-fitting machine, and The construction method of the steel sheet pile with a bolt used is proposed.

  The steel sheet pile with a bolt according to claim 1 is a steel sheet pile inserted into the ground while adjacent to the circumferential direction so as to surround a reinforced concrete structure to be built in the ground. A bolt is joined to or connected to the steel sheet pile main body constituting the structure, and the shaft portion of the bolt protrudes from the surface facing the structure side of the steel sheet pile main body.

  A steel material of a perforated steel sheet for transmitting a vertical shearing force from concrete to a steel sheet pile after joining a steel sheet pile with a bolt into the ground is joined to the shaft portion of the bolt. The connection means that the bolt includes a case where the bolt is not completely joined as in the case where the bolt is temporarily fixed to the steel sheet pile main body until the stage before the steel material of the perforated steel plate is joined.

  When the shaft part of the bolt protrudes from the surface facing the structure side of the steel sheet pile body, for example, when the head part of the bolt or the shaft part is joined to the structure side surface of the steel sheet pile body, such as welding, and protrudes In addition, the head portion of the bolt may be positioned on the surface on the opposite side of the structure, and the shaft portion may penetrate the steel sheet pile main body and protrude to the surface on the structure side. In the latter case, the bolt may be welded to the steel sheet pile main body at the head or shaft, and the shaft may penetrate the steel sheet pile main body without being welded. In this way, the nut may be screwed from the structure side.

  When the nut is screwed to the shaft portion of the bolt projecting from the surface facing the structure as described in claim 2, the nut is used to join the perforated steel plate to the shaft portion of the bolt. It can also be used. However, since the perforated steel sheet is joined to the bolt in the steel material integrated therewith as will be described later, if the bolt shaft is inserted into the steel material and the nut screwed into the bolt is tightened, the steel When water stop treatment is required for the bolt holes of the sheet pile main body, the work becomes difficult due to the presence of the steel material.

  In such a case, if the nut that is screwed to the bolt is subjected to a water stop treatment in a temporarily tightened state, the operation is easy and the reliability of the water stop is increased. In this case, after the water stop treatment, the temporarily tightened nut is finally tightened to the bolt, the shaft portion of the bolt protruding from the nut is inserted into the steel material of the perforated steel plate, and another nut is tightened to the steel material. As a result, the perforated steel sheet is joined to the steel sheet pile with bolts.

  When the bolt is directly joined to the structure-side surface of the steel sheet pile main body as described in claim 3, it is not necessary to drill a bolt hole for the bolt to penetrate the steel sheet pile main body. There is an advantage that processing on the main body is not required, and water stop treatment associated with the formation of the bolt hole is not required.

  According to Claim 1 thru | or 3, since the axial part of a volt | bolt protrudes from the surface which faced the structure side of a steel sheet pile main body, after insertion of a steel sheet pile main body, steel materials, such as a plate, to a perforated steel plate, for example Can be joined to the bolt using a nut with a nut. As a result, the welding work after the steel sheet pile main body is inserted is eliminated, the problem of workability deterioration when relying on welding is solved, and the problem of reliability reduction is also solved. The perforated steel sheet is joined to the steel sheet pile body simply by inserting bolts into the steel material integrated in it and tightening the nuts, so that workability and work efficiency are improved compared to welding, and the work period is shortened. In addition, the reliability of the joined state is improved.

  The steel sheet pile main body has a groove-shaped cross section having a web and a flange, and the adjacent steel sheet pile main bodies are connected to each other with the convex side of the web alternately facing the ground mountain side and the root cutting (structure) side. The structure side to be constructed of the steel sheet pile main body may be the convex side or the concave side of the web. Therefore, as a steel sheet pile with a bolt, at least any one of the form which the axial part protruded to the convex surface side of the steel sheet pile main body, and the form which the axial part protruded to the concave surface side is prepared.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the bolt is joined or connected to the central portion in the width direction of the steel sheet pile main body or in the vicinity thereof. And

  A chuck 9 of a press-fitting machine 8 used for inserting a steel sheet pile with a bolt is composed of a movable part 91 and a receiving part 92 that move to the steel sheet pile side when gripping the steel sheet pile as shown in FIGS. An inlet (about 70 mm × 70 mm or more) 92a for a water jet combined use method or a grout injection combined method is provided at each widthwise central portion of the receiving portion 92 on the convex side of the sheet pile main body and the movable portion 91 on the concave side. 91a is formed, and the inlets 92a and 91a are not blocked even when the chuck 9 grips the steel sheet pile main body. 16 shows the chuck 9 in a state where the steel sheet pile main body is not gripped, and FIG. 17 shows the chuck 9 in a state where the steel sheet pile main body is gripped.

  Therefore, as described in claim 4, the space of each inlet 91a, 92a of the movable portion 91 and the receiving portion 92 is used, and the bolt is placed in the center portion in the width direction of the steel sheet pile main body so as to fit in the space, or By joining or connecting in the vicinity, it becomes possible to insert a steel sheet pile with bolts into the ground using a press-fitting machine with less vibration. Since each injection port has a space of about 70 to 75 mm × 70 to 80 mm, it is possible to arrange two pipes in parallel on the plane depending on the diameter of the bolt. In this case, the steel material integrated with the perforated steel sheet is leveled horizontally. Since the cross section can be joined with two bolts, it is possible to improve the stability of the joined perforated steel sheet.

  The invention according to claim 5 is a steel sheet pile with bolts according to any one of claims 1 to 4, while being adjacent in the circumferential direction so as to surround a reinforced concrete structure to be built in the ground. Is inserted into the ground, and the earth and sand inside the area surrounded by the steel sheet pile with bolts is discharged, and then the steel material integrated with the perforated steel sheet is joined to the shaft of the bolt of the steel sheet pile with bolts with a nut. It is the construction method of the steel sheet pile with a bolt which makes this a constituent.

  The invention according to claim 6 is the structure of the steel sheet pile main body while inserting the steel sheet pile main body into the ground while adjoining the circumferential direction so as to surround the reinforced concrete structure to be built in the ground. A bolt is joined to the surface facing the side to produce the steel sheet pile with a bolt according to any one of claims 1 to 4, and after discharging the earth and sand inside the region surrounded by the steel sheet pile with the bolt, It is the construction method of the steel sheet pile with a volt | bolt which makes joining the steel shaft integrated with the perforated steel plate with a nut to the axial part of the bolt of the steel sheet pile with a bolt as a constituent requirement.

  According to the seventh aspect of the present invention, a steel sheet pile main body in which a bolt hole is formed in advance is inserted into the ground while adjoining the circumferential direction so as to surround a reinforced concrete structure to be built in the ground. 5. A steel sheet pile with a bolt according to claim 2, wherein a bolt is inserted into the bolt hole and a nut is temporarily tightened to the bolt to attach the nut, and the steel sheet pile with the bolt is surrounded by the steel sheet pile with the bolt. The construction method of the steel sheet pile with bolts, which comprises connecting the steel material integrated with the perforated steel sheet with the nut to the shaft portion of the bolt of the steel sheet pile with bolts after discharging the earth and sand inside the region It is. As a nut for joining steel materials, a nut temporarily tightened to a bolt or a nut added separately is used.

  Claim 5 is a case where the bolt is joined to the steel sheet pile main body before the steel sheet pile is inserted into the ground, and claims 6 and 7 are steel steel sheets in the process of inserting the steel sheet pile main body into the ground. This is a method of attaching bolts to the sheet pile body.

  According to claims 6 and 7, when one steel sheet pile main body is being inserted, when the chuck of the press-fitting machine or the vibro hammer is detached from the steel sheet pile main body and lifted by one stroke, a bolt is mounted on the ground below the chuck. Then, the steel sheet pile with bolts is formed, and the steel sheet pile with bolts is inserted into the ground as it is. Claim 6 is a method of joining bolts to the steel sheet pile main body by welding or the like in the process of inserting the steel sheet pile main body, and claim 7 inserts the bolt into the bolt hole of the steel sheet pile main body in the process of inserting the steel sheet pile main body, This is a method in which a nut is screwed into the portion.

  In the sixth and seventh aspects, since the bolt or the bolt and the nut are mounted at the lower position of the chuck, there is no interference between the chuck and the bolt. Either can be used. Moreover, since interference with a chuck | zipper does not arise, a volt | bolt can be freely arranged with respect to the web of a steel sheet pile main body, such as arranging a bolt in parallel or staggered.

  In any of the methods according to claims 5 to 7, the bolts are mounted on the steel sheet pile main body until the steel sheet pile main body is completely inserted into the ground. Therefore, the joining work is simplified compared to the case of welding in the ground, and the certainty of integration of the perforated steel sheet into the steel material is increased, and the work period is shortened.

  Invention of Claim 8 is a steel sheet pile main body used with the construction method of Claim 7, and makes it a constituent requirement that the bolt hole is formed in the web. The steel sheet pile main body in which the bolt hole is formed in the web is attached with a nut by attaching a bolt and a nut in the process of inserting the steel sheet pile main body as described above. It becomes a steel sheet pile with bolts.

  The invention according to claim 9 is a perforated steel sheet with steel material used in the construction method according to any one of claims 5 to 7, and the bolt according to any one of claims 1 to 4. It is a constituent requirement that a perforated steel plate is welded to a steel material in which a bolt hole is formed at a position corresponding to the bolt of the attached steel sheet pile.

  This perforated steel sheet with steel is a bolt and nut attached to the steel sheet pile body with bolts, or a nut added to the bolt after the earth and sand are discharged to the steel sheet pile body with bolts inserted into the ground. Are joined together. Since the perforated steel sheet is joined to the steel sheet pile body only by inserting a bolt through a steel material integrated therewith and tightening a nut, workability is better than that by welding.

As described above, in the present invention, by inserting the shaft portion of the bolt from the surface facing the structure side of the steel sheet pile main body, after inserting the steel sheet pile main body, the perforated steel plate with the steel material is nuts in the steel material. Therefore, the welding work after insertion of the steel sheet pile main body is eliminated, so that the problem of workability deterioration and the problem of reliability reduction when depending on welding can be solved.
In addition, the perforated steel sheet is joined to the steel sheet pile body only by inserting bolts into the steel material integrated therewith and tightening the nuts, so that workability and work efficiency are improved compared to welding, and the work period is shortened. be able to.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

  The present invention constitutes a steel sheet pile in a steel sheet pile inserted into the ground while adjacent to the circumferential direction so as to surround a reinforced concrete structure 7 to be built in the ground as shown in FIGS. The steel sheet pile main body 2 is connected to or connected to the bolt 3, and the bolt 3 is a steel sheet pile 1 with a bolt protruding from the surface of the steel sheet pile main body 2 facing the structure 7 side.

  The steel sheet pile body 2 is a U-shaped steel sheet pile having a web 2a and a flange 2b, and the bolt 3 is welded to the structure 7 side surface of the web 2a of the steel sheet pile body 2 as shown in FIGS. 4 or 5, the shaft portion penetrates the web 2a, and the nut 4 of the shaft portion is joined or connected by temporary tightening or final tightening. The bolts 3 are arranged at intervals in the material axis direction so as to be along the material axis direction of the steel sheet pile main body 2, but are not necessarily arranged on the same line. After the steel sheet pile 1 with the bolt is inserted into the ground, a perforated steel sheet (a perforated steel sheet with steel material) 5 in which the steel material 6 is integrated is joined to the bolt 3 by the nut 4 in the steel material 6.

  The surface facing the structure 7 side of the steel sheet pile main body 2 refers to either the convex surface side or the concave surface side of the web 2a as described above, or both, and when the bolt 3 is joined to the all steel sheet pile main body 2. The steel sheet pile 1 with the bolt shown in FIG. 1 in which the bolt 3 is joined to the convex surface side of the web 2a and the steel sheet pile 1 with the bolt shown in FIG. 2 in which the bolt 3 is welded to the concave surface side are prepared. When the bolt 3 is joined to the steel sheet pile main body 2 such as every other one, either a steel sheet pile 1 with a bolt shown in FIG. 1 or a steel sheet pile 1 with a bolt shown in FIG. 2 is prepared.

  The bolts 3 are joined in a row along the central portion in the width direction of the steel sheet pile main body 2 or in the vicinity thereof, or in parallel in the width direction as shown in FIGS. Arranged and joined. When one or two rows are joined at or near the center, for example, the projecting position and the projecting length of the bolt 3 are adjusted so that they fit within the inlets 91a and 92a of the chuck 9 of the press-fitting machine 8. Thus, it is possible to perform insertion by the press-fitting machine 8 while the bolt 3 is joined before the steel sheet pile main body 2 is inserted into the ground.

  The steel sheet pile main body 2 is inserted as a bolted steel sheet pile 1 to which bolts 3 have been joined in advance, or while welding the bolts 3 in the process of inserting the steel sheet pile main body 2 into the ground, or as shown in FIG. As shown in FIG. 5, the bolt 3 is inserted into the bolt hole 2c of the steel sheet pile main body 2 which is manufactured in the form in which the bolt hole 2c is formed in the web 2a, and the nut 4 is temporarily tightened to the shaft portion. The steel sheet pile 1 is inserted into the ground while making it.

  The steel sheet pile body 1 with the bolt or the steel sheet pile main body 2 before joining the bolt 3 is inserted into the ground using a press-fitting machine 8 as shown in FIG. 11 or using a vibro hammer 10 as shown in FIG. Done.

  According to the method of joining or connecting the bolt 3 to the steel sheet pile main body 2 in the process of inserting the steel sheet pile main body 2 into the ground, the chuck of the press-fitting machine 8 or the vibrator hammer 10 is inserted into the steel sheet pile main body 2 during the insertion. The bolt 3 is mounted on the steel sheet pile main body 2 on the ground on the portion of the steel sheet pile main body 2 located below the chuck while it is once detached from the main body 2 and ascending by one stroke. In this case, since the bolt 3 or the bolt 3 and the nut 4 do not interfere with the chuck, the joining position of the bolt 3 with respect to the web 2a is not limited to the central portion in the width direction or the vicinity thereof. It is possible to perform welding at an arbitrary position, for example, in parallel in the width direction.

  The steel sheet pile 1 with bolts or the steel sheet pile main body 2 is pressed into the steel sheet pile main body 2 while changing the orientation of the web 2a as shown in FIGS. Are arranged facing the structure 7 side. 6 shows a case where the shaft portion of the bolt 3 is welded to the surface of the web 2a on the structure 7 side, and FIG. 7 shows that the bolt 3 is passed through the bolt hole 2c of the web 2a of the steel sheet pile main body 2 shown in FIG. This is the case of joining or connecting with.

  The groundwater on the natural ground side due to the bolt 3 penetrating the web 2a and the leakage to the structure 7 side can be dealt with by applying a water stop treatment to the bolt hole 2c after the nut 4 is finally tightened to the bolt 3. . When water-stopping treatment is performed, the steel sheet pile main body 2 is inserted into the ground with the bolt 3 temporarily tightened with the nut 4 as shown in FIG. 7, the nut 4 is finally tightened as it is.

  In this case, in the steel material 6 of the perforated steel plate 5 with steel material, the shaft portion of the bolt 3 protruding from the nut 4 which is finally tightened into the bolt hole 6a is inserted, and another nut 4 ′ is tightened to the shaft portion. Is joined to the steel sheet pile 1 with a bolt. When water stop treatment is not necessary, the steel material 6 is joined by tightening the nut 4 'or once removing the nut 4 screwed into the bolt 3 and tightening the nut 4 after installing the perforated steel plate 5 with steel material. Is done.

  9-11 shows the point of insertion of the steel sheet pile main body 2 in which the bolt hole 2c was formed. As shown in FIG. 13, the steel sheet pile main body 2 or the steel sheet pile 1 with bolts is carried into the site in a state having a length that can secure a sufficient depth of insertion below the bottom surface of the structure 7. The steel sheet pile main body 2 or the steel sheet pile 1 with a bolt secures a necessary length by being connected by a reinforcing plate 2d as shown in FIG. 9 according to the insertion depth. When the steel sheet pile main body 2 in which only the bolt holes 2c are formed is used, the web 2a has no projections, so that there is an advantage that it is easy to carry and does not take a place for temporary placement.

  The steel sheet pile main body 2 shown in FIG. 9 is suspended at the boundary position of the structure 7 and is driven or press-fitted into the ground by a vibro hammer 10 as shown in FIG. 10 or by a press-fitting machine 8 as shown in FIG. The The bolt 3 is inserted into the bolt hole 2c and the nut 4 is temporarily tightened in the course of driving or press-fitting, and the steel sheet pile 1 with the bolt 3 and the nut 4 attached to the steel sheet pile main body 2 is inserted into the ground. Inserted. FIG. 8 shows a state where the bolted steel sheet pile 1 attached with the bolt 3 and the nut 4 is inserted.

  After the steel sheet pile 1 with all bolts is inserted into the ground so as to surround the structure 7 as shown in FIG. 12, the ground inside the area surrounded by the steel sheet pile 1 with bolts is at the level of the bottom surface of the structure 7. Until it is excavated and soil is discharged.

  Then, in order to transmit the shearing force of the perpendicular direction between the structure 7 and the steel sheet pile 1 with a volt | bolt, as shown in FIGS. 1-3, FIG. Perforated steel plate) 5 is joined to bolt 3 in steel material 6. The steel 6 is joined to the bolt 3 by tightening the nut 4. When the nut 4 is screwed to the bolt 3, the nut 4 may be used. As described above, the steel material 6 is attached to the nut 4 screwed to the bolt 3 as shown in FIG. 7. In some cases, another nut 4 ′ may be tightened from the structure 7 side.

  After joining the perforated steel sheet 5 with the steel material, as shown in FIG. 13, the structure 7 is constructed inside the steel sheet pile 1 with the bolts by reinforcing bars and placing concrete. FIG. 13 shows a state where the pier is constructed on the footing which is the structure 7.

  The perforated steel sheet 5 with steel material is basically a side surface of the perforated steel sheet 5 having holes 5a on one side of a plate as a steel material 6 in which bolt holes 6a are formed at positions corresponding to the bolts 3 of the steel sheet pile 1 with bolts. The steel material 6 is also formed of angle steel, groove steel, or the like. In the drawing, one steel material 6 welded to one perforated steel plate 5 is joined to the steel sheet pile 1 with bolts, but one steel material 6 welded in parallel with a plurality of perforated steel plates 5 is bolted. In addition to the case where the steel sheet pile 1 is joined, a plurality of steel materials 6 welded to one perforated steel sheet 5 may be juxtaposed and joined to the steel sheet pile 1 with bolts.

  In order to transmit the tensile force from the concrete due to the bending moment acting on the structure 7 to the bolted steel sheet pile 1 in the hole 5a of the perforated steel plate 5, for example, a hook 11a is provided on one side as shown in FIGS. The fixing material 11 such as an anchor line formed is connected. As the fixing material 11, a reinforcing bar, a steel bar, a shape steel, or the like is used, and the form is not limited. In order to facilitate the connection of the fixing material 11, the hole 5 a of the perforated steel plate 5 may be formed in a bowl shape and cut out from the side surface or end surface of the perforated steel plate 5.

It is the perspective view which showed the relationship between the steel sheet pile with a bolt which welded the volt | bolt to the convex surface side of the steel sheet pile main body, and a perforated steel plate (perforated steel plate with steel materials). It is the perspective view which showed the relationship between the steel sheet pile with a bolt which welded the volt | bolt to the concave surface side of the steel sheet pile main body, and a perforated steel plate (perforated steel plate with a steel material). It is the top view which showed a mode that the perforated steel plate (perforated steel plate with steel materials) was joined to the steel sheet pile with a bolt shown in FIG. 2 with the nut. It is the perspective view which showed the steel sheet pile main body by which the bolt hole was formed in the web along the axial direction. It is the top view which showed a mode that the volt | bolt was penetrated to the bolt hole of the steel sheet pile main body shown in FIG. 4, and the nut was temporarily tightened and it was made the shape of the steel sheet pile with a bolt. It is the top view which showed the arrangement | sequence state of the steel sheet pile with a bolt, and the joining state of the perforated steel plate. It is the top view which showed the arrangement | sequence state of the other steel sheet pile with a bolt, and the joining state of the perforated steel plate. It is the top view which showed the arrangement | sequence state of the steel sheet pile with a bolt shown in FIG. It is the perspective view which showed the mode before insertion of the steel sheet pile main body in which the bolt hole was formed. It is the elevation which showed the mode of insertion of the steel sheet pile main body using a vibro hammer. It is the elevation which showed the mode of insertion of the steel sheet pile main body using a press-fitting machine. It is the top view which showed the steel sheet pile with a bolt arranged so that a structure might be surrounded. It is the elevation which showed a mode that the structure was constructed after insertion of the steel sheet pile with a bolt. FIG. 14 is a partially enlarged view of FIG. 13. FIG. 15 is a plan view of FIG. 14. (A) is the top view which showed the press injection machine when the chuck | zipper is open, (b) is the partially expanded view of (a). (A) is a plan view showing a press-fitting machine when the chuck is closed, and (b) is a partially enlarged view of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ...... Steel sheet pile 2 with a bolt ......... Steel sheet pile main body 2a ... Web 2b ... Flange 2c ... Bolt hole 2d ... Reinforcing plate 3 ... Bolt 4 ... Nuts 4 '... Nuts 5 ... ...... Perforated steel plate 5a ... Hole 6 ......... Steel 6a ... Bolt hole 7 ......... Structure 8 ...... Press-fit machine 9 ...... Chuck 91 ... Movable part 91a ... Inlet 92 ... Receiving part 92a ... Injection port 10 ... Vibro hammer 11 ... Fixing material 11a ... Hook

Claims (9)

  In steel sheet piles inserted into the ground while adjoining in the circumferential direction so as to surround a reinforced concrete structure to be built in the ground, bolts are joined or connected to the steel sheet pile body constituting the steel sheet pile. A steel sheet pile with bolts, wherein the shaft portion of the bolt protrudes from the surface of the steel sheet pile body facing the structure.   The bolted steel sheet pile according to claim 1, wherein a nut is screwed into a shaft portion of the bolt protruding from a surface facing the structure side.   The steel sheet pile with a bolt according to claim 1, wherein the bolt is joined to a surface facing the structure side.   4. The steel sheet pile with bolt according to claim 1, wherein the bolt is joined or connected to a central portion in the width direction of the steel sheet pile main body or the vicinity thereof. 5.   The steel sheet pile with a bolt according to any one of claims 1 to 4 is inserted into the ground while adjoining the circumferential direction so as to surround a reinforced concrete structure to be built in the ground, and the bolt A bolt characterized by joining a steel material integrated with a perforated steel sheet to a shaft portion of the bolt of the steel sheet pile with bolts after discharging the earth and sand inside the region surrounded by the steel sheet pile with a bolt. Construction method for steel sheet piles.   The steel sheet pile main body is inserted into the ground while the steel sheet pile main body is inserted in the ground while surrounding the reinforced concrete structure to be built in the ground, and the bolt is attached to the surface facing the structure side of the steel sheet pile main body. The steel sheet pile with bolts according to any one of claims 1 to 4 is manufactured, and the earth and sand inside the region surrounded by the steel sheet pile with bolts is discharged. A construction method of a steel sheet pile with a bolt, wherein a steel material integrated with a perforated steel plate is joined to a shaft portion of the bolt with a nut.   Insert the bolt into the bolt hole while inserting the steel sheet pile main body in which the bolt hole is pre-formed into the ground while adjoining the circumferential direction so as to surround the reinforced concrete structure to be built in the ground. Then, a nut is temporarily tightened to the bolt to produce the bolted steel sheet pile according to any one of claims 2 to 4, and after discharging the earth and sand inside the region surrounded by the bolted steel sheet pile, A construction method for a steel sheet pile with bolts, wherein a steel material integrated with a perforated steel sheet is joined to a shaft portion of the bolt of the steel sheet pile with bolts by a nut.   It is a steel sheet pile main body used with the construction method of Claim 7, The bolt hole is formed in the web, The steel sheet pile main body characterized by the above-mentioned. A perforated steel sheet with a steel material used in the construction method according to any one of claims 5 to 7, wherein the steel material has a bolt hole at a position corresponding to a bolt of the bolted steel sheet pile. A perforated steel sheet with steel material, characterized by being welded.

Images