JP2005139756A - Wall body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall body capable of preventing axial deviation of a joint mutual member and executing with less kind of processings, by a simple execution and further for a shorter period, and reducing the construction cost. <P>SOLUTION: In a wall body 1 in which mutual joints 20 in a number of wall body constituent members 3 are engaged with each other, at least at the rearface side of the wall body 1 constituted of many wall body constituent members 3 having the joints 20 arranged so that the joint fitting parts 2 position near the neutral axis C of the wall body 1, through the joint connection member 4 with the predetermined length arranged in the predetermined position of the joint fitting parts 2 constituted of the adjacent wall body constituent members 3, the mutual joints 20 of the adjacent wall body constituent member 3 or the joints 20, and its near part 5 or mutual vicinity 5 of the joint 20 are integrally connected by a welding fixing means to form the wall body. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a water body structure such as a revetment, a quay wall and a breakwater, a wall body constituting a foundation structure such as a retaining wall and a sabo dam.

  When a horizontal force such as soil water pressure is applied to the wall body 1 constituted by the wall body constituting member 3 comprising the grooved steel sheet pile 31 as shown in FIG. 16B, the neutral axis C, that is, the joint The shear stress degree becomes maximum at the position of the fitting portion 2. Because of the shear stress, the joints 20 tend to be displaced from each other in the member axial direction, so that the integrity of the cross section is impaired and the cross-sectional rigidity is reduced.

  Conventionally, the following method (A) or (B) has been implemented for the purpose of restraining the “displacement” of the joint 20 in the member axial direction.

(A) At the head of each grooved steel sheet pile 31 in the wall body 1, they are integrated with a reinforced concrete pillow beam (usually referred to as a shade cap) 7 in the normal direction.

(B) The joints 20 are directly welded without interposing a steel rod.
Technical standards and explanations for port facilities (Volume 2) P668-669, published by Japan Port Association May 1999

  The construction of the reinforced concrete pillow beam 7 in the case of (A) is composed of complex and diverse work types such as reinforcing bar placement / welding, support, formwork attachment, concrete placement, curing, formwork removal. Is done. For this reason, the construction period was long and the construction cost was high.

  In the case of (B), a large amount of weld metal is required because a steel rod that plays the role of preventing burn-out is not interposed. In addition, there is a large variation in the fitting state of the joint, and the joint may not be sufficiently cleaned. For this reason, there was a problem in welding quality. Furthermore, the construction period was long and the construction costs were high.

  It is an object of the present invention to provide a wall body that can prevent “shift” in the member axial direction between joints, has a small number of work types, is easy to construct, can be constructed in a short construction period, and can reduce construction costs. And

In order to achieve the above-mentioned object, in the wall body of claim 1, in the wall body (1) in which the joints (20) in the multiple wall body component members (3) are meshed with each other, the wall body (1) At least on the back side of the wall body (1) constituted by a large number of wall body constituting members (3) having joints (20) disposed so that the joint fitting portions (2) are positioned in the vicinity of the neutral shaft. The adjacent walls via a joint connecting member (4) having a predetermined length disposed at a predetermined position on a side surface of the joint fitting portion (2) configured by the adjacent wall member (3). The joints (20) of the body constituting member (3), or the joint (20) and its vicinity (5), or the vicinity (5) of the joint (20) are integrally connected by fixing means by welding. It is characterized by being.
Moreover, in Claim 2, in the wall body of Claim 1, the vicinity part (5) of the joint (20) via the joint member (4) arranged so as to straddle the joint fitting part (2). ) Are integrally connected by fixing means by welding.

  Further, in the wall body according to claim 3, in the wall body (1) in which the joints (20) of the many wall body constituting members (3) are meshed with each other, the joint is fitted near the neutral shaft of the wall body (1). The said wall body structure adjacent in the at least back side of the wall body (1) comprised by many wall body structural members (3) which have the coupling (20) arrange | positioned so that a joint part (2) may be located A steel rod (6) having a predetermined length is disposed as a joint member (4) between joints at a predetermined position in the gap (100) on the outer surface of the joint fitting portion (2) constituted by the member (3), and the steel The joint (20) of the rod (6) and the adjacent wall member (3) adjacent to each other is integrally connected by welding.

  Further, in the wall body according to claim 4, in the wall body (1) in which the joints (20) of the many wall body constituting members (3) are meshed with each other, the joint is fitted near the neutral shaft of the wall body (1). In the wall body (1) constituted by a number of wall body constituent members (3) having joints (20) arranged so that the joint portion (2) is positioned, the adjacent wall body constituent members (3) A wedge member (60) having a predetermined length is inserted into at least one of the gap (110) on the predetermined side surface and the gap (110) on the upper surface side in the joint fitting portion (2) formed by ) Is press-fitted and the joints are integrally connected.

  Further, in the wall body according to claim 5, in the wall body (1) in which the joints (20) of the many wall body constituting members (3) are meshed with each other, the joint is fitted near the neutral shaft of the wall body (1). By the adjacent wall body constituent member (3) of the wall body (1) constituted by a number of wall body constituent members (3) having joints (20) arranged so that the joint portion (2) is located A through hole (500) penetrating each joint (20) constituting the joint fitting portion (2) is provided at a predetermined position on a side surface of the constructed joint fitting portion (2), and the through hole (500) is provided in the through hole (500). Is characterized in that a rod-like member (510) such as a bolt or a pin is inserted as a joint member (4) between the joints, and the joints are integrally fixed by a fixing means.

  Moreover, in Claim 6, in the wall body of any one of Claims 1-4, a wall body structural member (3) is a channel steel sheet pile.

  Moreover, in the wall body of Claim 7, in the wall body of any one of Claim 1, 2, or Claim 5, a connection member (4) between joints is an angle steel, a channel steel, an arc-shaped cross section. It is an open cross-section member (41) such as steel.

  Moreover, in Claim 8, in the wall body of any one of Claim 1, 2, or Claim 5, the connection member (4) between joints is a steel plate (42), It is characterized by the above-mentioned.

  Further, in the eighth invention, in the wall body according to any one of claims 1 to 4 and claims 6 to 8, the material of the inter-joint connecting member (4) is standardized to JIS A 5523. It is characterized by being made of the same material as the hot rolled steel sheet pile for welding.

The effects of the present invention are as follows.
(1) Since it is only necessary to weld the connecting member between the joints arranged so as to straddle the predetermined part of the side surface of the joint fitting part or the joint fitting part to the adjacent wall body constituting member, there are few work types and the construction is easy. It is. For this reason, the construction period is short and the construction cost can be reduced.
(2) Since a steel rod of a predetermined length is arranged on the side surface of the gap of the joint fitting portion, and the joints of the wall member constituting the steel rod and the adjacent members need only be welded together, there are few work types and construction Is simple. For this reason, the construction period is short and the construction cost can be reduced.
(3) Since a steel plate having a predetermined length is disposed on the side surface of the gap of the joint fitting portion and the joints of the wall constituent members adjacent to the steel plate need only be welded together, there are few work types and construction is easy. is there. For this reason, the construction period is short and the construction cost can be reduced.
(4) Since it is only necessary to press-fit and arrange a wedge member having a predetermined length in a gap at a predetermined portion of the joint fitting portion, the number of work types is small and the construction is simple. For this reason, the construction period is short and the construction cost can be reduced.
(5) The wall constructed using the wall constituting member composed of the grooved steel sheet pile has the maximum shear stress at the neutral axis C, that is, the position of the joint fitting portion. By such means, it is possible to improve the integrity of the cross section of the joint fitting portion to prevent the deviation, and to increase without reducing the cross sectional rigidity.
(6) When the joint member between joints is an open cross-section member such as angle steel, channel steel, or arc-shaped cross-section steel, it can be a commercially available inexpensive member that can straddle the joint, and the joint There is no material deterioration due to welding heat.
(7) The cross-section integrity of the joint fitting portion can also be obtained by providing a through hole in each joint of the joint fitting portion, inserting the rod-like member, and fixing the joints integrally through the rod-like member. Can be prevented by preventing the displacement, and the cross-sectional rigidity can be increased without decreasing.
(8) Moreover, if it is a member with weldability and toughness as a connection member between joints, integration by welding with a wall body structural member can be ensured, and the rigidity of a joint connection part can also be improved. In particular, when the wall constituting member is a hot-rolled steel sheet pile for welding specified in JIS A 5523, the joint member is made of the same material as the hot-rolled steel sheet pile for welding (JIS A 5523). When the hot-rolled steel material for welding is used, integration by welding can be more reliably performed and the rigidity of the joint connecting portion can be increased.

  1 to 3 show a wall body 1 according to a first embodiment of the present invention, in which a large number of wall body constituting members 3 composed of grooved steel sheet piles 31 are alternately arranged around a neutral axis C. And the joint 20 is meshed with each other and placed on the ground (including the bottom of the ground) to form the wall 1, and the joint 20 is meshed in the vicinity of the neutral axis C in the wall 1. The joint fitting portion 2 is located, and the wall body 1 has a predetermined length so as to straddle the joint fitting portion 2 on the rear side R of the front side (F) or the back side (R). The joint connecting members 4 made of angle steel 43 are arranged at intervals in the vertical direction, and the vertical portion of one end 44 of each angle steel 43 is the vicinity of the joint 20 in one wall member 3. 5 is fixed to the web 34 by welding W, and each angle steel 4 Is fixed to the web 34 in the vicinity 5 of the joint 20 in the other wall member 3 by welding W, and the wall member 3 adjacent in series is integrally connected, Adjacent wall members 3 are prevented from slipping.

  When the joint connecting member 4 is disposed so as to straddle the joint fitting portion 2 as described above and fixed to the vicinity 5 of the joint 20 of each wall member 3 by welding, the joint fitting portion 2 The thermal effect of the weld W on the joint 20 can be reduced.

  When the joint connecting member 4 is a commercially available open cross-section member such as angle steel or groove-shaped steel, or an open cross-section member such as an arc-shaped cross-section steel as in the embodiment described later, the joint fitting portion 2 is This can be reliably avoided, and can be fixed at a portion other than the joint fitting portion 2 by fillet welding or the like even when welding.

  The inter-joint connecting member 4 has an appropriate length of the inter-joint connecting member 4 spaced apart in the vertical direction in the vicinity 5 of the joint fitting portion 2 between the wall structural members 3 adjacent in series in the horizontal direction. It arrange | positions, it attaches to the wall body structural member 3 by welding continuous in the up-down direction, and connects so that the wall body structural members 3 adjacent in series in the horizontal direction may be integrated.

  When the back surface side (R) of the wall body 1 is the land side filled with the backfill soil 8, the back surface soil of the wall body 1 is on the land side of the back surface side (R) capable of removing an appropriate depth. The connecting member 4 between joints can be attached, and the workability is good. However, even if the front side (F) of the wall 1 is a water area such as the sea side, the connecting member 4 between joints can be attached in the same manner as the back side. When it is attached by underwater welding or welding in a dry state, the integrity can be further improved. The joint connecting member 4 may be installed at the same level on the front side (F) and the back side (R), but the front side (F) and the back side (R) are installed by shifting the position up and down. You may make it continue in an up-down direction by combining both.

  Thus, by attaching the joint member 4 between the joints to the web 34 in the vicinity 5 of the joint fitting portion 2, a member having a small width dimension of the joint member 4 between joints can be used to connect the adjacent wall body constituting members 3. It can be reliably integrated.

  FIG. 3 shows an example of the length and the installation position of the coupling joint member 4. The length in the vertical direction of the joint member 4 between joints is good, for example, when the length is about 500 mm, but may be other lengths. Further, a plurality may be provided at intervals in the vertical direction. When the joint connecting member 4 is provided from a position (for example, about 50 mm) away from the upper end of the joint fitting portion 2, workability in the case of turning welding is good.

  As shown in FIGS. 4 (a) and 4 (b), the inter-joint connecting member 4 includes not only the angle steel but also the flanges in the inter-joint connecting member 4 made of channel steel as one side 44 and the other side 45. The front ends thereof may be fixed to each wall member 3 by welding W, and as shown in FIGS. 5 (a) and 5 (b), a joint made of an arc-shaped cross-section steel 47 such as a steel semi-cylindrical body. The side end portion of the inter-connection member 4 may be fixed to each wall member 3 by welding W. Thus, the inter-joint connection member 4 includes the angle steel 43, the channel steel 46, and the arc-shaped cross-section steel 47. When the open cross-section member 41 is, for example, a commercially available inexpensive member that can straddle the joint fitting portion 2 can be obtained, and the thermal influence on the joint portion can be reduced. 4 and 5 are the same as those in the above-described embodiment, and the same parts are denoted by the same reference numerals and the description thereof is omitted.

  As shown in FIG. 6, both side portions of the joint connecting member 4 made of a vertically long rectangular steel plate 42 may be fixed to each wall member 3 by welding W. If the steel plate 42 is used like this form, it will become the cheap connection member 4 between joints. Further, the joint connecting member 4 can be installed over the web 20 of the joint 20 or the vicinity 5 thereof, and workability can be improved.

  7 to 9 show a wall 1 according to a second embodiment of the present invention. In this embodiment, the gap 100 on the outer surface (back side surface) of the joint fitting portion 2 formed by the adjacent wall body constituting members 3 is spaced apart in the vertical direction by one having a diameter larger than the width dimension of the gap 100. The steel bars 6 such as a plurality of deformed steel bars (in the case of illustration) are arranged and welded by the web 34 of the joint vicinity 5 so as to cover the whole steel bar 6, The joint 20 and the joint vicinity part 5 are integrally connected. When the joint 20 and the joint vicinity 5 in the adjacent wall constituting members 3 are integrally connected via the steel bar 6, as shown in FIG. 9 (b), both side parts of the steel bar 6 and each wall body You may adhere with the structural member 3 by welding. Since other configurations are the same as those of the above-described embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted.

  In each of the above embodiments, the inter-joint connecting member 4 is fixed by welding, so that the adjacent portions 5 of the joint 20 in the adjacent wall constituting members 3 or the joint 20 and the joint adjacent portion 5 are integrally connected. However, since the joints 20 in the adjacent wall constituting members 3 can be fixed and connected together by the wedge member, this embodiment will be described with reference to FIG. To do. In addition, the point by which the wall body structural member 3 is driven in the ground is the same.

  FIG. 10 shows an embodiment in which a wedge member 60 having a predetermined length is press-fitted into a gap 110 on the side surface of the joint fitting portion 2 in the wall body 1 so that the joints 20 are fixed in position. Yes. In addition, in the state by which the wall-body structural member 3 which consists of the groove-shaped steel sheet pile 31 was driven (press-fit) in the ground, since the position of the wall-body structural member 3 is hold | maintained, the wall body structural member is by the wedge member The joint inner surface side in 3 may be in a surface contact state, and the joint inner surface side may not be in a surface contact state.

  In the case where the wedge member 60 is press-fitted on the side surface side, the wedge member 60 may be press-fitted into the gap 110 with an interval in the vertical direction, and may be on the back side (R) or the front side (F) of the wall body 1. You may make it press-fit in the clearance gap 110 of both surfaces.

  When the wedge member 60 is press-fitted into the gap 110 of the joint fitting portion 2, as shown in FIG. 11, between the joints 20 on the upper surface side of the joint fitting portion 2 (in the illustrated case, the inside of the groove bottom portion of the joint 20. May be press-fitted into the gap 110 (between the claw portions) to prevent mutual displacement of the joint 20. Further, by combining these, as shown in FIG. 12, the gap on the side surface (the gap between the outer surface of the base end portion of the joint 20 and the inner surface of the base end portion of the joint 20) 110 and the gap on the upper surface (the claws of the joint 20). The wedge member 60 may be press-fitted into each of the gaps 110 between the inner surfaces of the parts to prevent the joint 20 from being displaced, and as a result, the joints 20 may be integrally connected.

  In this way, the wedge member (60) having a predetermined length is press-fitted into at least one of the gap 110 on the predetermined side surface and the gap 110 on the upper surface side in the joint fitting portion 2, and the joints are connected to each other. May be integrally connected.

  When the present invention is implemented including the above embodiments, as shown in FIG. 13, the groove portion 32 that opens to the front side F around the neutral axis C and the groove portion 32 that opens to the back side R are divided into the partition web 34. You may apply to the wall body 1 which uses the wall body structural member 3 which consists of the steel sheet pile 33 which has the point-symmetrical groove | channel 32 partitioned off by. In this form, the case of the steel rod 6 is shown as the connection member 4 between joints. In this embodiment, the wall body constituting member 3 composed of the steel sheet pile 33 in which the groove portion 32 and the joint 20 are arranged at point-symmetric positions is arranged in series and connected to form the wall body 1. it can.

  Further, as shown in FIG. 14, it may be applied to a steel sheet pile 33 having two groove portions 32 spaced on the back side R via partition webs 34 on both sides of one groove portion 32 on the front side F. It can also apply to the wall 1 as shown in FIG. 15 using such a steel sheet pile.

  In each said embodiment, the joint 20 between joints in the adjacent wall body structural member 3 or the joint vicinity part 5 etc. were integrally connected by fixing the connection member 4 between joints by welding, or press-fitting a wedge member. Although the form was shown, through-holes are provided in the joints 20 of the joint fitting portion 2, and the joints 20 in the adjacent wall member 3 are integrated with each other via a rod-like member inserted through the through-holes. Since it is also possible to connect, this form is demonstrated with reference to FIG. 16 and FIG.

  In this embodiment as well, in the same manner as in each of the embodiments described above, in the wall body 1 constructed by engaging the joints 20 of a large number of wall body component members 3 and placing them on the ground, the neutral axis C of the wall body 1 is constructed. The common point is that the wall body 1 is constituted by a large number of wall body constituting members 3 having joints 20 arranged so that the joint fitting portions 2 are located in the vicinity. FIG. 16 shows an overall view, and FIG. 17 shows an enlarged view of a part thereof.

  In this embodiment, a through-hole 500 having the same longitudinal center axis as the joint groove bottom plate portion 21 and the claw portion 22 integral with the joint groove bottom plate portion 21 of each of the opposing joints 20 in the adjacent wall member 3 made of a grooved steel sheet pile. Are provided at intervals in the vertical direction. The through hole 500 is a hole penetrating from the rear side R of the wall 1 to the front side F in each joint fitting portion 2, that is, a hole provided on the side surface of the joint fitting portion 2. These holes can be drilled in advance in the factory or in the field.

  Then, a bar-like member 510 such as a bolt (in the case of illustration) or a pin is inserted as the joint-connecting member 4 across the through-holes 500 of the joints 20 spaced in the vertical direction, and the head is made of bolts. A female thread member is screwed into the rod-shaped member 510, and the joints 20 of the joint fitting portion 2 are fixed integrally.

  The rod-shaped member 510 may be a one-side bolt, a steel rod or the like other than the illustrated bolt, and may be a fixing means by welding as a fixing means when a pin or a steel bar is used.

  Thus, in this embodiment, each joint 20 which comprises the joint fitting part 2 is penetrated in the predetermined location of the side surface of the joint fitting part 2 comprised by the said wall body structural member 3 adjacent in the wall body 1. As shown in FIG. A through hole 500 is provided, and in the through hole 500, a rod-like member (510) such as a bolt or a pin is inserted as an inter-joint connecting member (4), and the joints are integrally fixed by a fixing means. Similar to each of the embodiments, the wall body 1 is prevented from shifting in the member axial direction between the joints. Moreover, it is a wall that can be easily constructed in a short construction period with a small number of work types, and is a wall that can reduce the construction cost of integration.

  In addition to the above embodiment, the present invention can be applied to all wall bodies using steel sheet piles. For example, (1) self-supporting steel sheet pile wall, (2) tie rod type steel sheet pile wall, (3) rear It can be applied to steel sheet pile walls such as diagonal support pile steel sheet pile walls, (4) forward diagonal support pile steel sheet pile walls, and (5) double wall steel sheet pile walls.

  Moreover, in the said embodiment, although the case of the wall body which wants to use a channel-shaped steel sheet pile was shown, various steel sheet pile wall bodies, such as a wall body using the other steel sheet piles from which a coupling is located near a neutral axis | shaft The joint cross-sectional shape may be an appropriate steel sheet pile.

  Next, it is preferable that the material of the joint coupling member 4 used in the present invention is the same material as that of the wall member 3. The material of the grooved steel sheet pile as the wall constituting member 3 is preferably a hot-rolled steel sheet pile for welding specified in JIS A5523. The material is preferably the same as or similar to the hot-rolled steel sheet pile.

  To explain further, as a preferable material of the joint connecting member 4, for example, in mass% specified in JIS A5523, carbon (C) is 0.18% or less, silicon (Si) is 0.55% or less, Manganese (Mn) is 1.50% or less, phosphorus (P) is 0.04% or less, sulfur (S) is 0.04% or less, and the balance is Fe and an additive composition. Good.

  Moreover, the material of the joint connection member 4 is good in it being the steel material of the said specification which made mass% and free nitrogen 0.0060% or less.

  Moreover, as a material of the connection member 4 between joints used in the wall body of the present invention, a rolled steel material is preferable, and the standard that the Charpy absorbed energy in the V notch / rolling direction at a test temperature of 0 ° C. satisfies 43 J (joules) or more. Good steel. The reason specified in this way is to obtain a steel material having toughness (toughness) while ensuring weldability in the longitudinal direction of the joint member 4 between joints.

  Moreover, as a material of the connection member 4 between joints used in the wall body of the present invention, a rolled steel material is preferable, and the Charpy absorbed energy in the V notch / rolling perpendicular direction at a test temperature of 0 ° C. satisfies 43 J (joules) or more. It is good that it is a standard steel material. The reason specified in this way is to obtain a steel material having toughness (toughness) after ensuring weldability in the width direction of the joint-connecting member 4.

It is a top view which shows the wall body of 1st Embodiment of this invention using angle steel as a connection member between joints. (A) is a top view which expands and shows a part of FIG. 1, (b) is a front view. It is a front view for demonstrating the installation position of the connection member between couplings. (A) is a top view which expands and shows a part of wall body connected using grooved steel as a connection member between joints, (b) is a front view. (A) is a top view which expands and shows a part of wall body connected using a steel plate as a connection member between joints, (b) is a front view. (A) is a top view which expands and shows a part of wall body connected using the circular-section steel material as a connection member between joints, (b) is a front view. It is a top view which shows the wall body of embodiment of this invention using the steel bar as a connection member between joints. (A) is a top view which expands and shows a part of Fig.7 (a), (b) is a front view. (A) is a top view which expands and shows a part of FIG. 8 (a), (b) is a top view which shows the deformation | transformation form of the welding location of a steel bar. (A) is a top view which expands and shows a part of wall body of the form which used the wedge member for the clearance gap of the side surface in a joint fitting part, (b) is the front view. (A) is a top view which expands and shows a part of wall body of the form which used the wedge member for the clearance gap of the upper surface in a joint fitting part, (b) is the front view. (A) is a top view which expands and shows a part of wall body of the form which used the wedge member for the clearance gap of the upper surface and side surface in a joint fitting part, (b) is the front view. It is a top view which shows the wall body connected using the steel rod as a connection member between joints using the channel steel sheet pile of a 2nd form. It is a top view which shows the channel steel sheet pile of a 3rd form. It is a top view which shows the wall body connected using the steel rod as a connection member between joints using the grooved steel sheet pile of the 3rd form shown in FIG. It is a top view which shows the wall body of other embodiment of this invention using the rod-shaped member as a connection member between joints. (A) is a top view which expands and shows a part of FIG. 16, (b) is a front view. (A) is a longitudinal front view showing a form in which a wall body head is integrated with a reinforced concrete pillow beam in order to prevent wall displacement using a conventional grooved steel sheet pile, and (b) is a plan view thereof. is there.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wall body 2 Joint fitting part 20 Joint 21 Joint groove bottom board part 22 Claw part 3 Wall body structural member 31 Grooved steel sheet pile 32 Groove part 33 Steel sheet pile 34 Web 4 Joint connection member 41 Open cross-section member 42 Steel plate 43 Angle steel 44 One side 45 Other side 46 Channel steel 47 Arc-shaped cross section steel 5 Near part 6 Steel bar 7 Reinforced concrete pillow beam 8 Back soil 60 Wedge member 100 Outer surface gap 110 Gap C Neutral axis W Welding

Claims (9)

  In the wall body (1) in which the joints (20) of the many wall body structural members (3) are engaged with each other, the joint fitting portion (2) is positioned in the vicinity of the neutral shaft of the wall body (1). The joint fitting constituted by the adjacent wall body constituent members (3) at least on the back side of the wall body (1) constituted by a large number of wall body constituent members (3) having the joints (20) arranged. The joints (20) of the adjacent wall-body-constituting members (3) or joints (20) via a joint-joining joint member (4) having a predetermined length arranged at a predetermined location on the side surface of the joint (2). ) And its vicinity (5), or the vicinity (5) of the joint (20) are integrally connected by fixing means by welding.   The adjacent parts (5) of the joint (20) are integrally connected by fixing means by welding via the joint connecting member (4) arranged so as to straddle the joint fitting part (2). The wall according to claim 1.   In the wall body (1) in which the joints (20) of the many wall body structural members (3) are engaged with each other, the joint fitting portion (2) is positioned in the vicinity of the neutral shaft of the wall body (1). The joint fitting constituted by the adjacent wall body constituent members (3) at least on the back side of the wall body (1) constituted by a large number of wall body constituent members (3) having the joints (20) arranged. A steel rod (6) having a predetermined length is disposed as a coupling member (4) between the joints (2) at a predetermined position in the gap (100) on the side surface on the back side, and the steel rod (6) and the adjacent ones are arranged. A wall body characterized in that joints (20) of the wall body constituting member (3) are integrally connected by welding.   In the wall body (1) in which the joints (20) of the many wall body structural members (3) are engaged with each other, the joint fitting portion (2) is positioned in the vicinity of the neutral shaft of the wall body (1). In a wall body (1) constituted by a number of wall body constituting members (3) having joints (20) arranged, a joint fitting portion (2) constituted by the adjacent wall body constituting members (3) ), A wedge member (60) having a predetermined length is press-fitted into at least one of the predetermined gap (110) on the side surface and the gap (110) on the upper surface. Wall bodies characterized by being connected to each other.   In the wall body (1) in which the joints (20) of the many wall body structural members (3) are engaged with each other, the joint fitting portion (2) is positioned in the vicinity of the neutral shaft of the wall body (1). A joint fitting part (2) constituted by the wall body constituting member (3) adjacent to a wall body (1) constituted by a large number of wall body constituting members (3) having joints (20) arranged. A through hole (500) penetrating each joint (20) constituting the joint fitting portion (2) is provided at a predetermined position on the side surface of the joint, and the through hole (500) is a bolt as an inter-joint connecting member (4). A wall body characterized in that a bar-like member (510) such as a pin or a pin is inserted and the joints are integrally fixed by a fixing means.   The wall member according to any one of claims 1 to 5, wherein the wall member (3) is a grooved steel sheet pile.   7. The joint member (4) between joints is an open cross-section member (41) such as an angle steel, a channel steel, or an arc-shaped cross-section steel, or any one of claims 1, 2, or 6. Wall body.   The wall member according to any one of claims 1 to 6, wherein the joint member (4) is a steel plate (42). The material of the joint connecting member (4) is the same material as the hot-rolled steel sheet pile for welding specified in JIS A 5523. Item 9. The wall according to any one of items 8.

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