JP2017089338A - Connection member and steel sheet pile wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection member and a steel sheet pile wall for improving impervious performance in the steel sheet pile wall, by connecting a plurality of steel sheet piles by sandwiching a joint part of the steel sheet pile by a projection part of a connection member.SOLUTION: A connection member 1 of applying the present invention comprises a plurality of fitting parts 3 for constructing a steel sheet pile wall by connecting a plurality of steel sheet piles 2 and fitting a joint part 20 of the steel sheet piles 2, a connection part 4 for connecting the plurality of fitting parts 3 and a projection part 5 extending in the normal line direction X by continuing from the connection part 4. The projection part 5 is separately formed in the normal line orthogonal direction Y from the fitting parts 3, so as to sandwich the joint part 20 of the steel sheet pile 2 fitted to the fitting part 3 in the normal line orthogonal direction Y.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a connecting member for connecting a plurality of steel sheet piles to construct a steel sheet pile wall, and a steel sheet pile wall constructed by connecting a plurality of steel sheet piles.

  Conventionally, at the revetment and revetment at the waste disposal site, the retained water in the ground at the disposal site contains harmful substances, so the leakage of retained water from the underground ground at the disposal site must be prevented. Therefore, a water shielding wall such as a steel sheet pile wall having a water shielding performance is constructed as an outer revetment.

  For this reason, when constructing a water-impervious wall as an outer revetment for a waste disposal site, for example, by placing a steel sheet pile wall or the like connecting a plurality of steel sheet piles, In many cases, a backup function is provided to securely block the leakage of retained water from the ground.

  Moreover, when constructing a water shielding wall as an outer revetment or the like of a waste disposal site, since the water shielding performance of the steel sheet pile wall itself is important, for example, a steel sheet pile disclosed in Patent Document 1, It is also possible to apply a water-absorbing swellable water shielding material to the joint portions of the steel sheet piles connected to each other.

  Here, as a material for connecting a plurality of steel sheet piles to each other, for example, connection profiles disclosed in Patent Documents 2 and 3 have been proposed. The connection profile disclosed in Patent Documents 2 and 3 is a structure in which a steel sheet pile wall is constructed by using a connection profile in which a joint portion of each steel sheet pile is fitted.

  In the connection profile disclosed in Patent Document 2, in particular, the same two hooks for hooking the joint portions of two steel sheet piles to each other in the left-right direction are opposite to each other from the central strip. These hooks extend in the left-right direction.

  Further, the connection profile disclosed in Patent Document 3 has a central strip and two hook strips extending in opposite directions from the side surface of the central strip, and includes a side surface of the central strip and a free end portion of the hook strip. A jaw into which the joint portion of the steel sheet pile is fitted is formed.

JP 2002-363974 A JP 2008-169689 A JP 2008-308983 A

  However, although the connection shape disclosed in Patent Documents 2 and 3 is formed with a hook or the like that receives the joint portion of the steel sheet pile from the central strip or the like, the joint portion of each steel sheet pile and the connection shape In the portion where the hook or the like is fitted, only the fitting length between the joint portion of the steel sheet pile and the hook becomes the water stop distance.

  At this time, since the connecting shape members disclosed in Patent Documents 2 and 3 have a short fitting length between the joint portion of the steel sheet pile and the hook, the water stop distance cannot be sufficiently secured, and the water absorption swelling property Even if a water shielding material is applied, the water shielding performance is particularly insufficient at a portion where a plurality of steel sheet piles are connected.

  Therefore, the present invention has been devised in view of the above-described problems, and an object of the present invention is to connect a plurality of steel sheet piles by sandwiching a joint portion of a steel sheet pile between protrusions of a connecting member. By this, it is providing the connection member and steel sheet pile wall which improved the water-shielding performance of the steel sheet pile wall.

  The connecting member according to the first invention is a connecting member for connecting a plurality of steel sheet piles to construct a steel sheet pile wall, wherein a plurality of fitting portions into which joint portions of the steel sheet piles are fitted, A connecting portion to which the fitting portion is connected; and a protruding portion extending in a normal direction of the steel sheet pile wall, the protruding portion being formed away from the fitting portion in a direction perpendicular to the normal direction of the steel sheet pile wall. Thus, at least one joint portion of the steel sheet pile fitted to the fitting portion is sandwiched in the normal direction.

  In the connecting member according to a second aspect of the present invention, in the first aspect, any one part or all of the fitting part, the connecting part and the protruding part are separated from the joint part of the steel sheet pile on the joint part side of the steel sheet pile. A groove portion recessed in the direction is formed.

  The connecting member according to a third invention is characterized in that, in the second invention, the protruding portion is formed with the groove portion.

  The connecting member according to a fourth invention is characterized in that, in the third invention, the fitting portion, the connecting portion, and the protruding portion are each formed with the groove portion.

  The connecting member according to a fifth invention is characterized in that, in any one of the first to fourth inventions, the fitting portion, the connecting portion, and the protruding portion are integrally formed by hot pressing. .

  A steel sheet pile wall according to a sixth invention is a steel sheet pile wall constructed by connecting a plurality of steel sheet piles, and a plurality of steel sheet piles provided in the ground, and a connecting member connecting the plurality of steel sheet piles. The connecting member has a plurality of fitting portions to which the joint portions of the steel sheet piles are fitted, a connection portion to which the plurality of fitting portions are connected, and a protruding portion extending in the normal direction. The projecting portion is formed so as to be spaced apart from the fitting portion in the normal direction, thereby sandwiching the joint portion fitted in the fitting portion in the normal direction. Features.

  According to the first to sixth inventions, the protrusion is formed so as to sandwich the joint portion of the steel sheet pile, so that the total amount of water that passes when the retained water etc. leaks as compared with the conventional connected shape member. Since the extension becomes longer and the water stop distance is sufficiently secured, it is possible to improve the water shielding performance against leakage of retained water or the like at a location where a plurality of steel sheet piles are connected.

  According to 1st invention-6th invention, in the location which connected the some steel sheet pile, since the backup function for sealing off leakage of retained water etc. is provided reliably, a backup function is provided to a double steel sheet pile wall. There is no need to exhibit it, and it is possible to economically construct a steel sheet pile wall with high water shielding performance.

  In particular, according to the second and third inventions, a sufficient water stop distance is ensured by the formation of the protruding portion, and the groove portion formed in part or all of the fitting portion, the connecting portion, and the protruding portion is blocked. Since a water material or the like can be installed, it is possible to further improve the water shielding performance.

  In particular, according to the fourth invention, the groove portion of the fitting portion and the protruding portion is stopped by a water shielding material and the water level filled in the groove portion of the connection portion is measured over a predetermined period. It is possible to grasp the water stop condition of the fitting part and the protruding part with time, and monitor the change with time of the water shielding performance.

  In particular, according to the sixth invention, by using an independent connecting member, it is not necessary to perform special processing on the joint portion of each steel sheet pile, and the steel sheet pile having high water shielding performance. It becomes possible to construct a wall economically.

It is a perspective view which shows the steel sheet pile wall to which this invention is applied. (A) is a top view which shows the hat-shaped steel sheet pile connected with the connection member to which this invention is applied, (b) is the front view. (A) is a top view which shows the U-shaped steel sheet pile connected with the connection member to which this invention is applied, (b) is a top view which shows the Z-shaped steel sheet pile, (c) is the It is a top view which shows a linear steel sheet pile. It is a top view which shows the protrusion part formed in the one side of a normal line direction with the connection member to which this invention is applied. It is a top view which shows the protrusion part arrange | positioned alternately by the connecting member to which this invention is applied on both sides of a normal line direction. It is a top view which shows the protrusion part arrange | positioned on the both sides of a normal line direction at the connection member to which this invention is applied, and arrange | positioned substantially collinearly. It is a top view which shows the groove part formed in a fitting part, a connection part, and a protrusion part with the connection member to which this invention is applied. (A) is a top view which shows the state by which the water stop distance was fully ensured with the connection member to which this invention was applied, (b) is the water stop distance sufficiently ensured with the conventional connection profile. It is a top view which shows a state without. (A) is a top view which shows the swelling water shielding material installed in the connection member to which this invention is applied, (b) is a top view explaining the monitoring of the water shielding performance.

  Hereinafter, the form for implementing the connection member 1 and the steel sheet pile wall 7 to which this invention is applied is demonstrated in detail, referring drawings.

  As shown in FIG. 1, the steel sheet pile wall 7 to which the present invention is applied is constructed by connecting a plurality of steel sheet piles 2 to each other. For example, an outer revetment or a partition revetment of a waste disposal site As a water-impervious wall, it is provided so as to surround an existing or new waste disposal site.

  The steel sheet pile wall 7 to which the present invention is applied is provided so as to extend in the normal direction X, and is rooted to a predetermined depth in the ground 8, so that the facility inner side A in the site of the waste disposal site and the like The facility outside B such as outside the waste disposal site is separated from each other in the normal direction Y.

  The steel sheet pile wall 7 to which the present invention is applied includes a plurality of steel sheet piles 2 provided in the ground 8 continuously in the normal direction X, and a connecting member 1 that connects the plurality of steel sheet piles 2 to each other in the normal direction X. Is provided. The connecting member 1 to which the present invention is applied is used as the connecting member 1 for connecting the plurality of steel sheet piles 2 to the steel sheet pile wall 7 to which the present invention is applied.

  The connecting member 1 to which the present invention is applied is used for connecting a plurality of steel sheet piles 2 to construct a steel sheet pile wall 7. The connecting member 1 to which the present invention is applied is used particularly at a location where a plurality of steel sheet piles 2 are connected to each other in order to construct the steel sheet pile wall 7 as a water shielding wall that exhibits water shielding performance.

  As shown in FIG. 2, a hat-shaped steel sheet pile or the like is used for the steel sheet pile 2, and in particular, a pair of joint portions 20 are formed at both side ends in the normal direction X. For example, as shown in FIG. 2 (a), the steel sheet pile 2 has a flange portion 21, a pair of web portions 22, a pair of arm portions 23, and a pair of pairs, particularly when a hat-shaped steel sheet pile is used. A joint portion 20 is formed.

  At this time, the steel sheet pile 2 extends in the normal direction X to form the flange portion 21, and the web portions 22 are formed to be inclined from both side ends of the flange portion 21. Further, in the steel sheet pile 2, each arm portion 23 is formed from one end of each web portion 22, and each joint portion 20 is formed from the tip of each arm portion 23.

  As the steel sheet pile 2, not only a hat-shaped steel sheet pile but also a U-shaped steel sheet pile, a Z-shaped steel sheet pile, or a linear steel sheet pile may be used as shown in FIG. At this time, the steel sheet pile 2 is a U-shaped steel sheet pile shown in FIG. 3A, a Z-shaped steel sheet pile shown in FIG. 3B, and a linear steel sheet pile shown in FIG. A pair of joint portions 20 are formed at both ends in the normal direction X.

  For example, as shown in FIG. 2B, the steel sheet pile 2 has a member length L in the material axis direction Z of about 10 m to 30 m. At this time, the steel sheet pile 2 is continuously provided over the entire length of the member length L in the material axis direction Z, and the connecting member 1 to which the present invention is applied is provided along the joint portion 20. However, the steel sheet pile 2 and the connecting member 1 do not necessarily have the same length in the material axis direction Z. For example, when the length that requires water-stopping treatment is shorter than the length of the steel sheet pile 2 that is necessary for structural stability, the connecting member 1 should be provided for the length that requires water-stopping treatment. good.

  As shown in FIG. 4, the joint portion 20 extends in the normal direction X from the tip of the arm portion 23 or the like to form a joint extension portion 20a, and projects in the normal direction Y from the tip of the joint extension portion 20a. Thus, the joint claw portion 20b is formed. In the joint portion 20, the joint claw portion 20 b protrudes toward one of the normal orthogonal directions Y, and an opening 20 c that opens toward one of the normal orthogonal directions Y is formed.

  The connecting member 1 to which the present invention is applied is used to connect a plurality of steel sheet piles 2, and a plurality of fitting portions 3 to which the joint portions 20 of the steel sheet pile 2 are fitted, and a plurality of fitting portions 3. Are connected to each other, and a protruding portion 5 extending continuously from the connecting portion 4 in the normal direction X is provided.

  Here, the several fitting part 3, the connection part 4, and the protrusion part 5 are integrally formed by rolling or a hot pressing process. The connecting portions 4 are formed so as to extend in the normal normal direction Y so that the respective fitting portions 3 are connected from both sides in the normal direction X.

  The plurality of fitting portions 3 are formed at two locations on both sides of the connecting portion 4 when two steel sheet piles 2 are connected to one connecting member 1. The plurality of fitting portions 3 are formed at three or more locations around the connecting portion 4 when three or more steel sheet piles 2 are connected to one connecting member 1.

  When the two steel sheet piles 2 are connected to one connecting member 1, the plurality of fitting portions 3 are arranged so that the two steel sheet piles 2 are arranged substantially in the same straight line in the normal direction X. . Further, the plurality of fitting portions 3 may be configured such that the two steel sheet piles 2 are inclined with respect to each other in the normal direction X.

  Each fitting portion 3 extends from the connection portion 4 in the normal direction X to form a fitting extension portion 3a, and protrudes in the normal direction orthogonal Y from the tip of the fitting extension portion 3a. 3b is formed. Each fitting part 3 protrudes from the fitting extension part 3a, and the fitting claw part 3b is formed, so that the fitting groove surrounded by the fitting claw part 3b, the fitting extension part 3a, and the connection part 4 is provided. 30 is formed.

  Each fitting part 3 includes a fitting part 20 of the steel sheet pile 2 inserted through the fitting groove 30, and a fitting claw part 20 b of the fitting part 20 of the steel sheet pile 2 and a fitting claw part 3 b of the fitting part 3. However, by being mutually locked in the normal direction X, the joint part 20 of the steel sheet pile 2 is fitted.

  The protruding portion 5 extends in the normal direction X continuously from the connecting portion 4 and is formed away from the fitting claw portion 3b of the fitting portion 3 in the normal direction Y, thereby fitting portion 3 The joint part 20 of the steel sheet pile 2 fitted to the fitting part 3 is sandwiched in the normal direction Y between the fitting claw part 3b and the protruding part 5.

  In particular, the protruding portion 5 extends continuously to the position overlapping the fitting claw portion 3b of the fitting portion 3 in the normal direction X, so that the joint portion 20 of the steel sheet pile 2 fitted to the fitting portion 3 is obtained. The joint extending portion 20a and the normal direction X are formed so as to largely overlap.

  The protruding portion 5 is formed only on one side of the connecting portion 4 in the normal direction X, and is formed so as to be separated from the fitting portion 3 in the normal orthogonal direction Y only on one side of the normal direction X. Further, as shown in FIG. 5, the protruding portions 5 are formed on both sides of the connecting portion 4 in the normal direction X, so that the normal portions in the normal direction from the respective fitting portions 3 on both sides of the normal direction X. It may be formed apart from Y.

  When the protrusions 5 are formed on both sides of the connection part 4 in the normal direction X, for example, on the right side of the normal direction X, the protrusions 5 are formed on one side 4a of the connection part 4 in the normal direction Y. On the left side of the normal direction X, the other side 4b of the connection part 4 is formed in the normal direction Y. At this time, the protrusions 5 are alternately arranged in the normal direction Y on both sides in the normal direction X.

  Further, when the protrusions 5 are formed on both sides of the connection part 4 in the normal direction X, one side of the connection part 4 in the normal direction orthogonal Y on both sides of the normal direction X as shown in FIG. It may be formed only on the side 4a or the other side 4b. At this time, the protrusions 5 on both sides in the normal direction X are arranged in substantially the same straight line in the normal direction X, with the positions in the normal direction Y being substantially the same.

  Here, any one part or all of the fitting part 3, the connection part 4, and the protrusion part 5 is a joint of the steel sheet pile 2 as shown in FIG. 7 in any embodiment shown in FIGS. On the part 20 side, a groove part 6 that is depressed in a direction away from the joint part 20 of the steel sheet pile 2 may be formed.

  The groove portion 6 bends or bends the inner surface 30a of the fitting groove 30 in a direction away from the joint portion 20 of the steel sheet pile 2 so as to partially cut out the fitting portion 3, the connecting portion 4 or the protruding portion 5. They are formed in a concave shape. Further, the groove 6 is formed continuously over the entire length of the connecting member 1.

  The groove 6 is desirably formed in the vicinity of the center in the normal direction X at the protrusion 5. In particular, the groove 6 is formed in each of the fitting portion 3, the connecting portion 4, and the protruding portion 5, the fitting portion 3 and the protruding portion 5 are near the center in the normal direction X, and the connecting portion 4 is normal. It is formed near the center in the orthogonal direction Y.

  The connecting member 1 to which the present invention is applied has a gap G1 between the fitting claw portion 3b of the fitting portion 3 and the joint extending portion 20a of the joint portion 20 of the steel sheet pile 2 as shown in FIG. It is formed. In the connecting member 1 to which the present invention is applied, a gap G <b> 2 is formed between the fitting extension portion 3 a of the fitting portion 3 and the joint claw portion 20 b of the joint portion 20 of the steel sheet pile 2.

  The connecting member 1 to which the present invention is applied further has a protruding portion 5 formed so as to sandwich the joint portion 20 of the steel sheet pile 2 fitted to the fitting portion 3 in the normal direction Y. A gap G3 is formed between the portion 5 and the joint extending portion 20a of the joint portion 20 of the steel sheet pile 2.

  At this time, in the connecting member 1 to which the present invention is applied, each of the gap G1, the gap G2, and the gap G3 is retained in order to leak the retained water containing harmful substances from the facility inside A to the facility outside B. Need to pass through. The connecting member 1 to which the present invention is applied is formed with the protruding portion 5 so as to sandwich the joint portion 20 of the steel sheet pile 2 in particular, so that the gap G1 and the gap G2 that pass when the retained water leaks out. And the total extension of the gap G3 becomes long.

  On the other hand, in the conventional connecting shape member 9, since the protruding portion 5 that sandwiches the joint portion 20 of the steel sheet pile 2 is not formed, as shown in FIG. Etc., the retained water leaks from the facility inner side A to the facility outer side B. At this time, since the projection 5 is not formed in the conventional connecting shape member 9, the total extension of the gap G1 and the gap G2 that pass when the retained water leaks becomes short, and a sufficient water stop distance cannot be secured. It becomes.

  As shown in FIG. 8, the connecting member 1 to which the present invention is applied passes particularly when the retained water leaks as compared with the conventional connecting shape member 9 by forming the protruding portion 5. Since the total length becomes longer, the water stop distance can be secured sufficiently. Thereby, since the connection member 1 to which the present invention is applied has a protruding portion 5 to ensure a sufficient water stop distance, leakage of retained water or the like at a location where a plurality of steel sheet piles 2 are connected. It becomes possible to improve the water-blocking performance against water.

  Moreover, the connection member 1 to which the present invention is applied is formed with the protruding portion 5 that sandwiches the joint portion 20 of the steel sheet pile 2, so that the total extension through which the retained water leaks becomes longer. At this time, the connecting member 1 to which the present invention is applied has a plurality of steel sheet piles 2 even if a plurality of steel sheet piles 2 are driven in the normal direction Y to construct a double steel sheet pile wall. A backup function for reliably blocking leakage of retained water or the like is provided at the location where the connecting members 1 are connected.

  Since the connecting member 1 to which the present invention is applied is provided with a backup function for securely blocking leakage of retained water or the like at a location where a plurality of steel sheet piles 2 are connected, the backup member is particularly backed up on a double steel sheet pile wall. There is no need to demonstrate the function. Thereby, as shown in FIG. 1, the connecting member 1 to which the present invention is applied eliminates the need for material costs and construction costs for double-placing a plurality of steel sheet piles 2, and the steel sheet pile 2 It is possible to economically construct the steel sheet pile wall 7 with high water shielding performance while suppressing the space to be placed.

  As shown in FIG. 9, the connecting member 1 to which the present invention is applied is formed with the protruding portion 5 that sandwiches the joint portion 20 of the steel sheet pile 2, so that the water stoppage that passes when the retained water leaks out. A sufficient distance can be secured. Further, as shown in FIG. 9A, the connecting member 1 to which the present invention is applied is a swellable water-impervious material 61 having a water shielding property mainly composed of polyurethane or the like in each of the gap G1, the gap G2, and the gap G3. However, it may be installed by coating or filling.

  Furthermore, as shown in FIG. 9B, the connecting member 1 to which the present invention is applied provides water shielding to the groove portion 6 formed in part or all of the fitting portion 3, the connecting portion 4, and the protruding portion 5. A water shielding material 62 such as resin or rubber may be installed by fitting or the like. Thereby, the connecting member 1 to which the present invention is applied is formed with the protruding portion 5 that sandwiches the joint portion 20 of the steel sheet pile 2, thereby ensuring a sufficient water stop distance and a swellable water shielding material 61. Or the installation location of the water-impervious material 62 increases, and it becomes possible to further improve the water-shielding performance.

  In the connecting member 1 to which the present invention is applied, in particular, the groove portion 6 is formed in each of the fitting portion 3, the connection portion 4, and the protruding portion 5. For example, the groove portion 6 of the fitting portion 3 and the protruding portion 5 is water-impervious. It is good also as what does not install the water shielding material 62 in the groove part 6 of the connection part 4 while installing the material 62. FIG. At this time, especially the connection member 1 to which the present invention is applied may stop the gap G2 and the gap G3 with the water shielding material 62, and the groove portion 6 of the connection portion 4 may be filled with the entire length.

  In the connecting member 1 to which the present invention is applied, if the water stoppage of the gap G2 and the gap G3 is insufficient, the water level filled in the groove portion 6 of the connecting portion 4 is lowered. It is possible to grasp the water stoppage status. Thereby, the connecting member 1 to which the present invention is applied measures the water stoppage of the gap G2 and the gap G3 over time by measuring the water level filled in the groove 6 of the connecting portion 4 over a predetermined period. By grasping it, it is possible to monitor changes over time in the water shielding performance.

  As shown in FIG. 4, in the connecting member 1 to which the present invention is applied, when the protrusion 5 is formed on one side in the normal direction X, the protrusion 5 is separated in the normal direction Y. The joint portion 20 of the steel sheet pile 2 is fitted in advance from the fitting portion 3 that is not, and a water stop treatment is performed by welding or adhesion.

  And the connecting member 1 to which the present invention is applied includes, for example, the connecting member 1 together with the preceding steel sheet pile 2, and then the fitting portion 3 in which the protruding portion 5 is formed apart in the normal direction Y. Next, the joint part 20 of the steel sheet pile 2 to be driven in the rear is fitted. As shown in FIG. 5, the connecting member 1 to which the present invention is applied is provided with the connecting member 1 and the steel sheet pile 2 when the protruding portions 5 are formed on both sides in the normal direction X. Can also be carried out independently.

  The connecting member 1 to which the present invention is applied is used as an independent member for connecting a plurality of steel sheet piles 2 as shown in FIG. The steel sheet pile wall 7 can be constructed by connecting a plurality of steel sheet piles 2 without performing any processing. Thereby, the steel sheet pile wall 7 to which the present invention is applied does not require special processing to be performed on the joint portion 20 of each steel sheet pile 2 by using the connecting member 1 as an independent member. It becomes possible to economically construct the steel sheet pile wall 7 having high water shielding performance.

  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: Connecting member 2: Steel sheet pile 20: Joint part 20a: Joint extension part 20b: Joint claw part 20c: Opening part 21: Flange part 22: Web part 23: Arm part 3: Fitting part 3a: Fitting extension part 3b : Fitting claw part 30: fitting groove 30a: inner surface 4: connection part 4a: one side 4b: other side 5: protrusion 6: groove part 61: swellable water shielding material 62: water shielding material 7: steel sheet pile wall 8 : In-ground X: Normal direction Y: Normal normal direction Z: Material axis direction

Claims (6)

A connecting member for connecting a plurality of steel sheet piles to construct a steel sheet pile wall,
A plurality of fitting portions to which the joint portion of the steel sheet pile is fitted, a connection portion to which the plurality of fitting portions are connected, and a protruding portion extending in the normal direction of the steel sheet pile wall,
The protruding portion is formed away from the fitting portion in a direction perpendicular to the normal line of the steel sheet pile wall, so that at least one joint portion of the steel sheet pile fitted into the fitting portion is in the normal line orthogonal direction. A connecting member characterized by being sandwiched between the two. Any one part or all of the fitting part, the connection part, and the protruding part is formed with a groove part that is recessed in a direction away from the joint part of the steel sheet pile on the joint part side of the steel sheet pile. The connecting member according to claim 1. The connecting member according to claim 2, wherein the protrusion is formed with the groove. The connecting member according to claim 3, wherein the groove portion is formed in each of the fitting portion, the connecting portion, and the protruding portion. The connecting member according to claim 1, wherein the fitting portion, the connecting portion, and the protruding portion are integrally formed by hot pressing. A steel sheet pile wall constructed by connecting a plurality of steel sheet piles,
A plurality of steel sheet piles provided in the ground, and a connecting member that connects the plurality of steel sheet piles,
The connecting member has a plurality of fitting portions to which joint portions of the steel sheet piles are fitted, a connection portion to which the plurality of fitting portions are connected, and a protruding portion extending in a normal direction, The projecting portion is formed to be spaced apart from the fitting portion in the normal direction, thereby sandwiching the joint portion fitted to the fitting portion in the normal direction. Steel sheet pile wall.

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