JP2013040531A - H-shaped steel sheet pile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an H-shaped steel sheet pile whose joint parts are fitted directly to the joint parts of Z-shaped steel sheet piles to form a diaphragm wall, without using individual connection members such as connectors.SOLUTION: An H-shaped steel sheet pile 2 includes a first joint part 35 which has the same shape as a third joint part 5 of each of Z-shaped steel sheet piles 1 to be arranged adjacent thereto to form the diaphragm wall, and a second joint part 39 which has the same shape as a fourth joint part 9 of each of the Z-shaped steel sheet piles 1 in the state of being reversed relative to a flange part 31. With the Z-shaped steel sheet piles 1 arranged adjacent thereto, the first joint part 35 and the fourth joint part 9, and the second joint part 39 and the third joint part 5 are engaged and connected with each other to form the diaphragm wall where an outer face 31m of the flange part 31 of the H-shaped steel sheet pile 2 is flush with the flange faces of the Z-shaped steel sheet piles 1 as a construction plane.

Description

  The present invention relates to an H-shaped steel sheet pile mainly used for constructing a continuous wall in civil engineering and construction work such as a large revetment, quay wall, and mountain retaining.

Conventionally, an H-shaped steel sheet pile is a large section steel mainly used for constructing a continuous wall in civil engineering and construction work. At the end of at least one flange of the H-shaped steel sheet pile, a joint portion for forming another wall by engaging another steel sheet pile is formed.
Further, in civil engineering and construction work using steel sheet piles, it is generally performed to enhance cross-sectional performance by using H-shaped steel sheet piles together with steel sheet piles such as Z-shaped steel sheet piles. For example, as disclosed in Patent Documents 1 to 3, in an example in which H-shaped steel is attached to the web inner surface or outer surface of a U-shaped steel sheet pile by welding or bolts, or in a Z-shaped steel sheet pile, as illustrated in FIG. Technology that uses H-shaped steel sheet piles in combination with Z-shaped steel sheet piles 100 and the joints between H-shaped steel sheet piles 200 interposed between them with special connectors (symbols CA and CB in the figure). Etc. are disclosed.

Japanese Patent No. 3603793 Japanese Patent No. 4498172 JP 2009-249959 A

  However, in the technologies disclosed in Patent Documents 1 to 3, since the H-shaped steel is attached to the inner or outer surface of the U-shaped steel sheet pile by welding or bolts, the H-shaped steel sheet pile is connected to the H-shaped joint. Steel cannot be directly fitted. Therefore, for example, when using together with a U-shaped steel sheet pile, the attachment process of H-section steel by the welding etc. to a web surface may be needed. In addition, in the case of a Z-shaped steel sheet pile, as shown in Patent Document 3, there is a case where a joint portion between two steel sheet piles is fitted and an H-shaped steel is attached thereto. Since a gap corresponding to the height of the portion is generated, a member such as a spacer is separately required to ensure stability.

  In addition, even when using an H-shaped steel sheet pile in the middle part of a continuous wall construction using a general Z-shaped steel sheet pile, the Z-shaped steel sheet pile and the H-shaped steel sheet pile should be directly fitted. I can't. Therefore, as illustrated in FIG. 9, not only a dedicated connector (CA, CB) is required, but the fitting portion is located at a position protruding from the flange surface of the Z-shaped steel sheet pile, As illustrated in FIG. 10, the flange surface of the H-shaped steel sheet pile 200 positioned between the Z-shaped steel sheet piles 100 is attached to the mounting surface of the flank H-shaped steel 300 or the like that is often used during construction. On the other hand, it is no longer flush. For this reason, a gap is generated in the opposite direction to the flange surface of the H-shaped steel sheet pile 200 ("gap generation" portion indicated by the arrow in the figure), which is not preferable. Therefore, the gap portion is filled with concrete or the like. It may be necessary.

  Therefore, the present invention has been made paying attention to such a problem, and directly fitting its joint part to the joint part of the Z-shaped steel sheet pile without using a separate connecting member such as a connector. It aims at providing the H-shaped steel sheet pile which can comprise a connection wall in combination.

  In order to solve the above problems, an H-shaped steel sheet pile according to an aspect of the present invention includes a central web portion, a flange portion formed on both ends of the web portion so as to protrude left and right, and one flange portion. A H-shaped steel sheet pile that has a first joint portion formed at one end of the steel plate and a second joint portion formed at the other end of the flange portion, and forms a continuous wall by arranging Z-shaped steel sheet piles adjacent to each other. The Z-shaped steel sheet pile includes a web portion disposed obliquely, a flange portion formed at an end portion of the web portion, a third joint portion formed at the tip of one flange portion, and the other A fourth joint portion formed at the tip of the flange portion, the third joint portion having a bulge portion at the tip and a main claw disposed inside the steel sheet pile, and facing the main claw A double-claw joint having a sub-claw that is formed to be disposed outside the steel sheet pile, The fourth joint portion has a main claw having a bulging portion at the tip and disposed outside the steel sheet pile, and a sub claw formed so as to face the main claw and disposed inside the steel sheet pile. It is a double claw-type joint part, and the H-shaped steel sheet pile has the first joint part having the same shape as the third joint part of the Z-shaped steel sheet pile, and the second joint part is The fourth joint portion of the Z-shaped steel sheet pile has the same shape as the shape inverted with respect to the flange portion, and the first joint portion, the fourth joint portion, and the second joint portion are arranged adjacent to each other with the Z-shaped steel sheet pile. And the third joint portion are engaged with each other and connected to each other to form a continuous wall in which the outer surface of its own flange portion is flush with the flange surface of the Z-shaped steel sheet pile as the construction surface. And

According to the H-shaped steel sheet pile according to one aspect of the present invention, the second joint portion and the first joint portion that are respectively fitted to the third joint portion and the fourth joint portion of the Z-shaped steel sheet pile disposed adjacent to each other are provided. Therefore, without using a separate connecting member such as a connector, the joint wall can be directly fitted to the joint portion of the Z-shaped steel sheet pile to form the continuous wall.
Here, in the H-shaped steel sheet pile according to an aspect of the present invention, the first joint portion is provided at one end of the flange portion via a first bent portion that is bent toward the inner side of the steel sheet pile. By providing one bent portion, the outer surface of the auxiliary claw is prevented from projecting outside the steel sheet pile than the outer surface of the flange portion, and the second joint portion bends toward the inner side of the steel sheet pile. Provided at the other end of the flange portion via a portion, and by providing the second bent portion, the outer surface of the main claw is more inside than the outer surface of the flange portion by a distance equal to or greater than the thickness of the sub-nail. It is preferable to arrange | position. Such a configuration is suitable for forming a steel sheet pile wall in which the outer surface of its own flange portion is flush with the flange surface of the Z-shaped steel sheet pile as the construction surface.

  Further, in the H-shaped steel sheet pile according to one aspect of the present invention, the first joint portion is formed by a secondary process of welding a cut third joint portion of the Z-shaped steel sheet pile, and the second joint portion. If it consists of the secondary process which welded in the attitude | position which reversed what cut | disconnected the 4th joint part of the said Z-shaped steel sheet pile, manufacture is easy and reliable fitting structure is comprised when composing a continuous wall Is preferable.

  Moreover, the H-shaped steel sheet pile which concerns on 1 aspect of this invention WHEREIN: The opposing distance of the said 1st joint part and a 2nd joint part is the 3rd joint part and 4th joint of Z-shaped steel sheet piles which should be arrange | positioned adjacently. If it forms according to the opposing distance with a part, it is more suitable when providing a reliable fitting structure when comprising a continuous wall.

  As described above, according to the H-shaped steel sheet pile according to the present invention, without using a separate connecting member such as a connector, the joint portion is directly fitted to the joint portion of the Z-shaped steel sheet pile to connect the connecting wall. Can be configured.

It is a figure explaining one Embodiment of the Z-shaped steel sheet pile which has a joint part corresponding to the joint part of the H-shaped steel sheet pile which concerns on 1 aspect of this invention. It is detail drawing of the A section (3rd coupling part) of FIG. It is detail drawing of the B section (4th coupling part) of FIG. It is a figure explaining the state which fitted the Z-shaped steel sheet pile of FIG. It is a figure explaining the state which fitted the Z-shaped steel sheet piles of FIG. 1, and comprised the continuous wall. It is a figure explaining one Embodiment of the H-shaped steel sheet pile which concerns on 1 aspect of this invention, The figure shows the image of the secondary process which welded what cut | disconnected the joint part of the Z-shaped steel sheet pile of FIG. ing. It is a figure explaining the state which inserted the H-shaped steel sheet pile of FIG. 6 between the Z-shaped steel sheet piles of FIG. 1, fitted the joint part, and comprised the continuous wall. It is a figure explaining the modification of the H-shaped steel sheet pile which concerns on 1 aspect of this invention, The figure (a) shows the narrow specification with a short flange part, (b) shows the wide specification with a long flange part, respectively. Yes. It is a figure explaining the state which connected the conventional H-section steel via the connector between Z-shaped steel sheet piles which have the conventional Larzen type joint. It is a figure explaining the state which comprised the conventional H-section steel between the conventional Z-shaped steel sheet piles shown in FIG. 9, and comprised the continuous wall.

  Hereinafter, an embodiment of an H-shaped steel sheet pile according to an aspect of the present invention will be described with reference to the drawings as appropriate. Here, the H-shaped steel sheet pile according to an aspect of the present invention can form a continuous wall by arranging Z-shaped steel sheet piles having corresponding joint portions adjacent to each other. In particular, in this embodiment, It consists of the secondary process which welded what cut | disconnected the joint part of the Z-shaped steel sheet pile. Therefore, first, an embodiment of the Z-shaped steel sheet pile adjacently disposed will be described in detail.

  As shown in FIG. 1, the overall shape of the Z-shaped steel sheet pile 1 includes a web portion 16 disposed obliquely, a first flange portion 3 formed on one end side of the web portion 16, and the web portion 16. It has the 2nd flange part 7 formed in the other end side, and has become substantially Z shape as a whole. A third joint portion 5 is formed at the tip of the first flange portion 3, and a fourth joint portion 9 is formed at the tip of the second flange portion 7.

Next, the structure of the joint part of this Z-shaped steel sheet pile 1 will be described in detail. In addition, since the basic shape of the 3rd joint part 5 and the 4th joint part 9 is the same, it demonstrates based on FIG. 2, FIG.
As shown in FIGS. 2 and 3, the third joint portion 5 and the fourth joint portion 9 include a joint body portion 17 formed so as to be continuous with the respective distal ends of the flange portions 3 and 7, and the joint body portion. The main claw 13 and the sub claw 15 are formed so as to be divided into two forks from 17 and opposed to each other. As for the main nail | claw 13, the base is thin and the bulging part 11 is formed in the front-end | tip. The bulging portion 11 of the main claw 13 in the present embodiment has a substantially rectangular shape, and the entire shape of the main claw 13 is T-shaped. The bulging portion 11 is not limited to a rectangular shape, and may be a circle or an ellipse.

  As shown in FIG. 2, the third joint portion 5 has a main claw 13 having a bulging portion 11 at the tip and disposed inside the steel sheet pile, and a steel sheet pile outer side formed so as to face the main claw 13. It is a double nail type joint part which has the sub nail | claw 15 arrange | positioned in this. Further, as shown in FIG. 3, the fourth joint portion 9 has a bulging portion 11 at the tip and a main claw 13 disposed on the outer side of the steel sheet pile, and a steel formed so as to face the main claw 13. This is a double-claw joint having a sub-claw 15 arranged inside the sheet pile.

  As shown in FIGS. 2 and 3, the connecting portion 19 of the T-shaped horizontal piece and the vertical piece in each main claw 13 has a bending angle on the joint inner side 21 side surrounded by the main claw 13 and the sub claw 15. Is smoother than the outer bending angle. Since the bending angle on the joint inner 21 side is smooth, the ridge line of the joint inner 21 surrounded by the main claws 13 and the sub claws 15 in the joint portion has a smooth arc shape. Thereby, since the joint inside 21 is in a smooth arc shape, the degree of freedom of rotation between adjacent joint parts is increased when the joint parts are connected.

  Further, as shown in FIGS. 2 and 3, each of the sub claws 15 has a shape in which the thickness of the base is large and the thickness becomes thinner toward the tip, and smoothly curved toward the joint interior 21 as a whole. I am doing. And the main nail | claw 13 of the other coupling part connected with this is inserted in the coupling inside 21 enclosed by the main nail | claw 13 and the subnail | claw 15. Since the bulging part 11 is formed in the main nail | claw 13, the main nail | claw 13 of the other coupling part connected from the clearance gap between the main nail | claw 13 and the subnail | claw 15 does not come out.

Here, although the 3rd joint part 5 and the 4th joint part 9 are common in the point which has the main nail | claw 13 and the subnail | claw 15 which were mentioned above, since there also exists a different point, hereafter in FIG. The third joint portion 5 disposed on the left side and the fourth joint portion 9 disposed on the right side in FIG. 1 will be described separately.
When the third joint portion 5 shown in FIG. 2 connects the third joint portion 5 and the fourth joint portion 9 to form the steel sheet pile wall 27 (see FIGS. 4 and 5), The sub claw 15 is disposed outside the steel sheet pile. The steel sheet pile outer side is the side opposite to the side where the web part 16 is located with respect to the axis of the first flange part 3, and the steel sheet pile inner side is the opposite side, that is, the central axis of the first flange part 3. Is the side where the web portion 16 is.

  The third joint portion 5 is disposed inside the steel sheet pile such that the sub claws 15 are disposed outside the steel sheet piles and the main claws 13 are opposed to the sub claws 15. Therefore, as shown in FIG. 2, the third joint portion 5 is connected to the first flange portion 3 via a first bent portion 23 that bends from the first flange portion 3 to the inside of the steel sheet pile. By providing the third joint portion 5 via the first bent portion 23, the outermost portion of the steel sheet pile on the outer surface of the auxiliary claw 15 disposed on the outer side of the steel sheet pile is connected to the outer surface of the first flange portion 3. They are designed to be flush with each other (see FIG. 2).

When the fourth joint portion 9 shown in FIG. 3 connects the third joint portion 5 and the fourth joint portion 9 to form the steel sheet pile wall 27, the main claws 13 are outside the steel sheet pile at the connected joint portion. Is to be arranged. The fourth joint portion 9 is disposed inside the steel sheet pile such that the main claws 13 are disposed on the outer side of the steel sheet pile and the sub claws 15 are opposed to the main claws 13.
The fourth joint portion 9 is connected to the second flange portion 7 via a second bent portion 25 that bends from the second flange portion 7 to the inside of the steel sheet pile. Therefore, as shown in FIG. 3, the second bent portion 25 has a longer extension distance to the inner side of the steel sheet pile than the first bent portion 23 formed on the third joint portion 5 side. Yes. The fourth joint portion 9 is provided via the second bent portion 25, so that the outermost portion of the steel sheet pile on the outer surface of the main claw 13 disposed on the outer side of the steel sheet pile is the second flange portion 7. It arrange | positions only the distance S rather than the outer surface (refer FIG. 3). The distance S is set to a distance that is equal to or greater than the thickness of the auxiliary nail 15.

  With the above configuration, the Z-shaped steel sheet pile 1 is connected as shown in FIG. 5 by connecting the third joint portion 5 and the fourth joint portion 9 of the Z-shaped steel sheet pile 1 as shown in FIG. A wall 27 can be formed. In a state in which the third joint portion 5 and the fourth joint portion 9 are connected (see FIGS. 4 and 5), the auxiliary claw 15 of the third joint portion 5 is connected to the fourth joint portion 9 on the fourth joint portion 9 side. It is designed not to protrude from the outer surface of the 2 flange portion 7. In this example, the outer surfaces of the first flange portion 3 and the second flange portion 7 of the two connected Z-shaped steel sheet piles 1 are flush with each other.

Furthermore, this Z-shaped steel sheet pile 1 has an H-shaped steel sheet pile 2 which will be described later disposed adjacent thereto, and the first joint portion 35 and the fourth joint portion 9 of the H-shaped steel sheet pile 2 and the second shape of the H-shaped steel sheet pile 2. It is a Z-shaped steel sheet pile which can form the steel sheet pile wall 37 (refer FIG. 7) by engaging and connecting the joint part 39 and the 3rd joint part 5) (it explains in full detail below).
Hereinafter, an embodiment of an H-shaped steel sheet pile according to an aspect of the present invention will be described.

As shown in FIG. 6, the H-shaped steel sheet pile 2 is formed by secondary processing in which the joint portions 5 and 9 of the Z-shaped steel sheet pile 1 described above are cut and welded to one first flange portion 31. is there.
Specifically, the H-shaped steel sheet pile 2 includes a central web portion 30, a first flange portion 31 and a second flange portion 32 formed on both ends of the web portion 30 so as to protrude left and right, respectively, A first joint portion 35 formed at one end (the left end portion in the figure) of one flange portion 31 (the upper side in the figure) and the other end portion (right end portion in the figure) of the first flange portion 31 And a second joint portion 39 formed.

  The 1st joint part 35 consists of secondary processing which welded what cut | disconnected the 3rd joint part 5 of the Z-shaped steel sheet pile 1 mentioned above. Moreover, the 2nd joint part 39 consists of secondary processing which welded with the attitude | position which reversed what cut | disconnected the 4th joint part 9 of the Z-shaped steel sheet pile 1 mentioned above. That is, the first joint portion 35 has the same shape as the third joint portion 5 of the Z-shaped steel sheet pile 1, and the second joint portion 39 connects the fourth joint portion 9 of the Z-shaped steel sheet pile 1 to the first flange. The shape is the same as the shape inverted with respect to the portion 31.

  And this H-shaped steel sheet pile 2 is provided in the end of the 1st flange part 31 through the said 1st bending part 23 in which the 1st coupling part 35 bends toward the steel sheet pile inner side, This 1st bending By providing the portion 23, the outer surface of the sub claw 15 does not protrude outward from the steel sheet pile than the outer surface 31 m of the first flange portion 31. Further, the second joint portion 39 is also provided at the other end of the first flange portion 31 via the second bent portion 25 that bends toward the inner side of the steel sheet pile. By providing the second bent portion 39, the second bent portion 39 is provided. The outer surface of the main claw 13 is disposed on the inner side of the outer surface 31m of the first flange portion 31 by a distance equal to or greater than the thickness of the sub claw 15.

Here, the H-shaped steel sheet pile 2 has a Z-shaped steel sheet pile between the first joint portion 35 and the second joint portion 39 that has a facing distance (a distance between the joint interiors 21) W of the Z-shaped steel sheet piles to be adjacent to each other. It is formed corresponding to the opposing distance (reference numeral W ′ shown in FIG. 7) between the third joint portion 5 and the fourth joint portion 9.
Thereby, as shown in FIG. 7, this H-shaped steel sheet pile 2 arrange | positions the said Z-shaped steel sheet pile 1 adjacently, the 1st joint part 35 and the 4th joint part 9, and the 2nd joint part 39 and 3rd. When each of the joint portions 5 is engaged with each other and connected, the flange portion of the Z-shaped steel sheet pile 1 which becomes a construction surface (in this example, a contact surface with the flank H-shaped steel 300) A steel sheet pile wall in which the outer surface 31m of the first flange portion 31 is flush is formed.

Next, the action and effect of this H-shaped steel sheet pile will be described.
When the connecting wall 37 shown in FIG. 7 is driven from the Z-shaped steel sheet pile 1 and the H-shaped steel sheet pile 2 configured as described above, the Z-shaped steel sheet pile previously driven in FIG. A joint portion (for example, the first joint portion 35) of the H-shaped steel sheet pile 2 that is subsequently placed on one joint portion (for example, the fourth joint portion 9) is engaged and driven. Next, the joint portion (for example, the third joint portion 5) of the Z-shaped steel sheet pile 1 is engaged with the other joint portion (for example, the second joint portion 39) of the H-shaped steel sheet pile 2 and driven. Thereby, as shown in FIG. 7, the main claw 13 of the first joint portion 35 on the left side of the H-shaped steel sheet pile 2 is inserted into the joint inside 21 of the fourth joint portion 9 of the Z-shaped steel sheet pile 1, The joint inside 21 of the second joint portion 39 on the right side of the H-shaped steel sheet pile 2 is engaged so that the joint inside 21 of the third joint portion 5 of the next Z-shaped steel sheet pile 1 is inserted.

  At the time of placing, the Z-shaped steel sheet pile 1 is easy to rotate due to the ground force. In this case, the double-claw joints 5, 9, 35, 39 of this embodiment are free to rotate. Since each degree is high, excessive force does not act on each joint part 5, 9, 35, 39, and each joint part 5, 9, 35, 39 is not deformed at the time of placing. Further, each of the double-claw joint portions 5, 9, 35, 39 has a high resistance to a tensile force, so that deformation is small. Therefore, the continuous wall 37 consisting of the Z-shaped steel sheet pile 1 and the H-shaped steel sheet pile 2 can be formed with high accuracy.

  Here, according to this H-shaped steel sheet pile 2, the 2nd joint part 39 and the 1st joint part 35 which fit in the 3rd joint part 5 and the 4th joint part 9 of the Z-shaped steel sheet pile 1 arrange | positioned adjacently, respectively. Therefore, without using a separate connecting member such as a connector as illustrated in FIG. 9, the joint portions 39 and 35 are directly fitted into the joint portions 5 and 9 of the Z-shaped steel sheet pile, The connecting wall 37 as shown in FIG. 7 can be easily configured.

  And according to the connecting wall 37 which consists of the above-mentioned Z-shaped steel sheet pile 1 and H-shaped steel sheet pile 2, since each joint part 5, 9, 35, 39 has a high freedom degree of rotation, when a seismic force etc. acted Even so, excessive force does not act on the joint portions 5, 9, 35, 39, and the joint portions are not deformed. Moreover, since the structure of the double-claw type joint part of each joint part 5, 9, 35, 39 is excellent in tensile strength, the Z-shaped steel sheet pile 1 and the H-shaped steel sheet pile 2 also have a tensile force in that sense. When received, the joints 5, 9, 35, 39 are not deformed. Therefore, it is excellent in the water stoppage of the joint part.

  And according to this H-shaped steel sheet pile 2, the 1st coupling part 35 is provided in the end of the 1st flange part 31 via the 1st bending part 23 bent toward the steel sheet pile inner side, This 1st By providing the bent portion 23, the outer surface of the sub claw 15 does not protrude outward from the steel sheet pile than the outer surface 31 m of the first flange portion 31, and the second joint portion 39 faces the steel sheet pile inside. The second bent portion 25 is provided at the other end of the first flange portion 31 via the bent second bent portion 25, and by providing the second bent portion 25, the outer surface of the main claw 13 is a distance equal to or more than the thickness of the sub claw 15. Since it is arrange | positioned inside the outer surface 31m of the said 1st flange part 31, the outer wall 31m of the own 1st flange part 31 becomes flush with the flange surface of the Z-shaped steel sheet pile 1 used as a construction surface. It is suitable for forming 37.

  Then, by setting the same as the outer surfaces of the first flange portion 3 and the second flange portion 7 of the two Z-shaped steel sheet piles 1 connected to each other, the abdominal material 300 is directly installed on the portion. Is possible. Temporarily, if the joint part protrudes in the connection part, for example, a back-raised concrete must be installed in the part, but there is no such trouble in the present embodiment. Excellent workability.

Moreover, according to this H-shaped steel sheet pile 2, the 1st joint part 35 consists of secondary processing which welded what cut | disconnected the 3rd joint part 5 of the Z-shaped steel sheet pile 1, and the 2nd joint part 39 is Since it consists of the secondary processing which welded in the posture which reversed what cut the 4th joint part 9 of Z-shaped steel sheet pile 1, manufacture is made easy and it is surely made into Z-shaped steel sheet pile 1 when constituting connecting wall 37 Can be fitted.
Moreover, according to this H-shaped steel sheet pile 2, the opposing distance W of the 1st joint part 35 and the 2nd joint part 39 is the 3rd joint part 5 of the Z-shaped steel sheet pile 1 and 4th which should be arrange | positioned adjacently. Since it is formed corresponding to the facing distance W ′ to the joint portion 9, it can be more reliably fitted when the connecting wall 37 is formed.

The H-shaped steel sheet pile according to the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the present invention.
For example, in the said embodiment, although each joint 35,39 of the H-shaped steel sheet pile 2 demonstrated in the example which is the secondary processed product which welded what cut | disconnected each joint part of the Z-shaped steel sheet pile 1, Not limited to this, it is also possible to shape the H-shaped steel itself at the same time during processing. However, in order to facilitate manufacture and ensure that the connecting wall 37 is fitted to the Z-shaped steel sheet pile 1, each joint 35 of the H-shaped steel sheet pile 2 as in the example of the above embodiment. , 39 is preferably a secondary processed product obtained by welding the joints of the Z-shaped steel sheet pile 1.

  In particular, in the above-described embodiment, the opposing distance W between the first joint portion 35 and the second joint portion 39 is such that the Z-shaped steel sheet piles 1 to be disposed adjacent to each other between the third joint portion 5 and the fourth joint portion 9. Although the point formed corresponding to facing distance W 'was demonstrated, by making what cut each joint part of Z-shaped steel sheet pile 1 into the secondary processed goods which welded, Z-shaped steel sheet pile 1 mutual In accordance with the facing distance W ′, for example, as illustrated in FIG. 8, the first flange portion 31 is made narrower (see FIG. 8A), or the first flange portion 31 is made wider. It can be changed as appropriate according to various civil engineering / building works, such as specifications (see FIG. 5B). Therefore, it is preferable to make each joint 35 and 39 of the H-shaped steel sheet pile 2 into the secondary work product which welded what cut | disconnected each joint part of the Z-shaped steel sheet pile 1 also in respond | corresponding to such a response | compatibility.

DESCRIPTION OF SYMBOLS 1 Z-shaped steel sheet pile 2 H-shaped steel sheet pile 3 1st flange part 5 3rd joint part 7 2nd flange part 9 4th joint part 11 Swelling part 13 Main nail | claw 15 Sub nail | claw 16 Web part 17 Joint main-body part 19 Connection part 21 Joint interior 23 First bent portion 25 Second bent portion 27 Steel sheet pile wall 30 Web portion 31 First flange portion 32 Second flange portion 35 First joint portion 37 Steel sheet pile wall (continuous wall)
39 Second joint portion 100 Conventional Z-shaped steel sheet pile 200 Conventional H-shaped steel sheet pile 300 H-shaped steel for raising

Claims (4)

A central web portion, a flange portion formed on both ends of the web portion so as to project from side to side, a first joint portion formed at one end of one flange portion, and the other end of the flange portion A H-shaped steel sheet pile having a second joint part and forming a continuous wall by arranging Z-shaped steel sheet piles adjacent to each other,
The Z-shaped steel sheet pile includes an obliquely arranged web portion, a flange portion formed at an end portion of the web portion, a third joint portion formed at the tip of one flange portion, and the other flange. A fourth joint part formed at the tip of the part, the third joint part having a bulge at the tip and a main claw disposed inside the steel sheet pile so as to face the main claw And a secondary claw-type joint having a secondary claw disposed outside the steel sheet pile, wherein the fourth joint has a bulge at the tip and is disposed outside the steel sheet pile. A double-claw joint having a claw and a secondary claw formed to face the main claw and disposed inside the steel sheet pile,
In the H-shaped steel sheet pile, the first joint portion has the same shape as the third joint portion of the Z-shaped steel sheet pile, and the second joint portion has a fourth joint portion of the Z-shaped steel sheet pile. The shape is the same as the shape reversed with respect to the flange portion, and Z-shaped steel sheet piles are arranged adjacent to each other, and the first joint portion and the fourth joint portion, and the second joint portion and the third joint portion are engaged with each other. An H-shaped steel sheet pile characterized by forming a continuous wall in which the outer surface of its own flange portion is flush with the flange surface of the Z-shaped steel sheet pile as a construction surface when coupled together. The first joint portion is provided at one end of the flange portion via a first bent portion that is bent toward the inner side of the steel sheet pile, and by providing the first bent portion, the outer surface of the auxiliary claw is provided on the flange. It is designed not to protrude outside the steel sheet pile than the outer surface of the part,
The second joint portion is provided at the other end of the flange portion via a second bent portion that is bent toward the inner side of the steel sheet pile. By providing the second bent portion, the outer surface of the main claw is 2. The H-shaped steel sheet pile according to claim 1, wherein the H-shaped steel sheet pile is disposed on the inner side of the outer surface of the flange portion by a distance equal to or greater than the thickness of the sub-nail.   The 1st joint part consists of secondary processing which welded what cut the 3rd joint part of the Z-shaped steel sheet pile, and the 2nd joint part cut the 4th joint part of the Z-shaped steel sheet pile. The H-shaped steel sheet pile according to claim 1, wherein the sheet-shaped sheet pile is formed by a secondary process of welding in an inverted posture.   The opposing distance between the first joint part and the second joint part is formed to correspond to the opposing distance between the third joint part and the fourth joint part of the Z-shaped steel sheet piles to be arranged adjacent to each other. The H-shaped steel sheet pile as described in any one of Claims 1-3 characterized by the above-mentioned.

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