JP6839623B2 - Connecting tool for steel sheet pile - Google Patents

Description

The present invention relates to a connector for steel sheet piles.

Steel sheet piles for excavation and earth retaining in civil engineering work are connected by sequentially penetrating into the ground so as to fit in the longitudinal direction with the joints of other steel sheet piles that are usually adjacent to each other by joints called sections. The surface is constructed as a whole. The steel sheet piles installed in this way form a surface as a whole and oppose earth pressure and water pressure. At this time, the surface bends in the out-of-plane direction as a whole. When a part of the constituent surface, that is, a part of the steel sheet pile, is subjected to a larger external force than the other part of the surface, shear deformation occurs in the joint portion, and the joint portion tends to be relatively displaced. However, if the joint portion is only fitted in the longitudinal direction, there is no means for suppressing the shear deformation, and the amount of deformation of the entire surface becomes large. Therefore, in general, for the purpose of suppressing the deformation of the surface, a method is adopted in which the vicinity of the top of the joint portion of the steel sheet pile is welded or fastened with a splicing metal fitting to suppress the shear deformation of the joint portion. However, in the conventional method, not only the work man-hours when installing the steel sheet pile but also the removal of the shear restraining structure is required at the time of removal, which is complicated because the man-hours are large. Therefore, a simple joint top fastening method is required. Patent Document 1 describes a steel sheet pile composed of an integral frame in which frames of two chucks attached so as to straddle each of the upper end surfaces of two steel sheet piles in which joints are connected to each other are connected to each other. The connector for use is disclosed. The connector for steel sheet piles of Patent Document 1 strengthens the connection between the joint portions of the steel sheet piles, thereby more firmly integrating the steel sheet piles connected in a row, and only a part of the steel sheet piles by an external force. Is prevented from moving.

Japanese Unexamined Patent Publication No. 2000-345556

By the way, in a general construction site, the construction accuracy of the connection between the joints of the steel sheet piles connected to each other, especially the installation angle varies greatly, and when the above-mentioned steel sheet pile connecting tool is attached, each steel sheet pile The angle of the web part may be different. On the other hand, since the fastening bolt of the conventional steel sheet pile connector is equipped in the normal direction with respect to the assumed fastening surface, when it is properly screwed to one of the adjacent steel sheet piles. , The screwing angle is not appropriate for other steel sheet piles, and it may be difficult to fix the connection part.

Therefore, an object of the present invention is to provide a connecting tool for steel sheet piles, which can be connected so that the steel sheet piles are integrated with each other while dealing with variations in the construction accuracy of connecting the joint portions of the steel sheet piles.

The present invention is a steel sheet pile connector used in a state where the first joint portion of the first steel sheet pile and the second joint portion of the second steel sheet pile are connected to each other, and the first joint portion is connected to each other. The first fixed portion fixed to the front and back surfaces of the first steel sheet pile so as to straddle the end face of the first steel sheet pile from the side of one end of the boundary line between the first joint portion and the second joint portion, and one end of the boundary line. The movement of the second fixed portion fixed to the front surface and the back surface of the second steel sheet pile so as to straddle the end face of the second steel sheet pile from the side and the second joint portion with respect to the first joint portion in the direction parallel to the boundary line. Steel provided with a holding portion for holding the first fixing portion and the second fixing portion so as to allow fluctuations in the angle of the second joint portion with respect to the first joint portion having the boundary line as the rotation axis while limiting. It is a connecting tool for sheet piles.

According to this configuration, the steel sheet pile connector used in a state where the first joint portion of the first steel sheet pile and the second joint portion of the second steel sheet pile are connected to each other is connected to each other. The first fixed portion fixed to the front and back surfaces of the first steel sheet pile so as to straddle the end face of the first steel sheet pile from the side of one end of the boundary line between the first joint portion and the second joint portion, and one end of the boundary line. The movement of the second fixed portion fixed to the front surface and the back surface of the second steel sheet pile so as to straddle the end face of the second steel sheet pile from the side and the second joint portion with respect to the first joint portion in the direction parallel to the boundary line. In order to provide a holding portion for holding the first fixed portion and the second fixed portion so as to allow the angle of the second joint portion to fluctuate with respect to the first joint portion whose rotation axis is the boundary line while limiting. The first steel sheet pile and the second steel sheet pile can be connected so as to be integrated while dealing with variations in the construction accuracy of the connection between the first joint portion and the second joint portion that are connected to each other.

In this case, the holding portion includes a convex portion protruding from one end of either the first fixing portion or the second fixing portion to the other side of the first fixing portion or the second fixing portion, and a first fixing portion. And has a concave portion recessed from the other end of the second fixed portion to the side opposite to one side of the first fixed portion and the second fixed portion, and the convex portion and the concave portion are fitted to each other. By doing so, the movement of the second joint portion with respect to the first joint portion in the direction parallel to the boundary line is restricted, and the angle of the second joint portion with respect to the first joint portion having the boundary line as the rotation axis is allowed to fluctuate. As such, it is preferable to hold the first fixed portion and the second fixed portion.

According to this configuration, the holding portion includes a convex portion protruding from one end of either the first fixed portion or the second fixed portion to the other side of either the first fixed portion or the second fixed portion, and a second fixed portion. It has a concave portion that is recessed from the other end of either the 1 fixed portion or the second fixed portion to the side opposite to one side of the first fixed portion or the second fixed portion, and the convex portion and the concave portion are formed. By fitting each other, the angle of the second joint portion with respect to the first joint portion having the boundary line as the rotation axis is restricted while restricting the movement of the second joint portion with respect to the first joint portion in the direction parallel to the boundary line. Since the first fixed portion and the second fixed portion are held so as to allow fluctuation, the structure of the holding portion can be simplified.

When the holding portion has a convex portion and a concave portion, the holding portion includes a pin hole portion that penetrates the convex portion and the concave portion fitted to each other in a direction parallel to the boundary line, and a pin inserted into the pin hole portion. It is preferable to hold the first fixing portion and the second fixing portion so as not to be separated from each other by a pin.

According to this configuration, the holding portion has a pin hole portion that penetrates the convex portion and the concave portion that are fitted to each other in a direction parallel to the boundary line, and a pin that is inserted into the pin hole portion. In order to hold the first fixing portion and the second fixing portion so as not to separate from each other, for example, at a construction site, excess or deficiency of a first fixing portion having a convex portion and a second fixing portion having a concave portion that fit each other. It becomes easy to prepare without.

When the holding portion has a convex portion and a concave portion, the holding portion preferably has a convex portion and a concave portion on both the front surface and the back surface side of the first steel sheet pile and the second steel sheet pile.

According to this configuration, since the holding portion has convex portions and concave portions on both the front surface and the back surface side of the first steel sheet pile and the second steel sheet pile, the front surface and the back surface of the first steel sheet pile and the second steel sheet pile. Compared to the case where only one side of the steel has a convex portion and a concave portion, the second joint portion is moved with respect to the first joint portion in a direction parallel to the boundary line even if the convex portion and the concave portion are the same. It is possible to improve the strength of the convex portion and the concave portion with respect to the force and the strength of the convex portion and the concave portion with respect to the force of twisting the second joint portion with respect to the first joint portion around the rotation axis intersecting the boundary line. Further, as compared with the case where the first steel sheet pile and the second steel sheet pile have the convex portion and the concave portion only on one side of the front surface and the back surface, the convex portion and the concave portion can be made smaller even if the strength is the same. it can.

In this case, the holding portion is a pin hole on at least one side of the front surface and the back surface of the first steel sheet pile and the second steel sheet pile, which penetrates the convex portion and the concave portion fitted to each other in the direction parallel to the boundary line. It is preferable to have a portion and a pin to be inserted into the pin hole portion, and to hold the first fixing portion and the second fixing portion so as not to be separated from each other by the pin.

According to this configuration, the holding portion penetrates the convex portion and the concave portion fitted to each other on at least one side of the front surface and the back surface of the first steel sheet pile and the second steel sheet pile in the direction parallel to the boundary line. In order to have a pin hole portion to be formed and a pin to be inserted into the pin hole portion, and to hold the first fixing portion and the second fixing portion so as not to be separated from each other by the pin, for example, they are fitted to each other at a construction site. It becomes easy to prepare a first fixing portion having a convex portion and a second fixing portion having a concave portion in just proportion.

Further, when the holding portion has a convex portion and a concave portion, the holding portion has an outer peripheral surface parallel to the boundary line in the convex portion and an inner peripheral surface parallel to the boundary line in the concave portion, and the outer peripheral surface and the inner surface. The first fixed portion and the second fixed portion are held so as to allow the angle of the second joint portion to fluctuate with respect to the first joint portion whose rotation axis is the boundary line by sliding the peripheral surfaces with each other. Is preferable.

According to this configuration, the holding portion has an outer peripheral surface parallel to the boundary line in the convex portion and an inner peripheral surface parallel to the boundary line in the concave portion, and the outer peripheral surface and the inner peripheral surface slide with each other. Therefore, in order to hold the first fixed portion and the second fixed portion so as to allow the angle of the second joint portion to fluctuate with respect to the first joint portion whose rotation axis is the boundary line, the structure of the holding portion is simply changed. can do.

In this case, the holding portion has a pin hole portion that penetrates the outer peripheral surface and the inner peripheral surface that slide with each other, and a pin that is inserted into the pin hole portion. It is preferable to hold the and so as not to separate from each other.

According to this configuration, the holding portion has a pin hole portion that penetrates the outer peripheral surface and the inner peripheral surface that slide with each other, and a pin that is inserted into the pin hole portion. Since the two fixing portions are held so as not to be separated from each other, for example, at a construction site, it is easy to prepare a first fixing portion having a concave portion and a second fixing portion having a convex portion to be fitted to each other in just proportion. It becomes.

Further, the first fixing portion has a pair of abutting portions that abut on the front surface and the back surface of the first steel sheet pile, and at least one of the pair of abutting portions is from the first fixing portion to the first steel. The length of protrusion toward the sheet pile can be changed, and the length of protrusion from the first fixed portion toward the first steel sheet pile can be changed. It is preferable to contact any of the back surfaces.

According to this configuration, the first fixing portion has a pair of abutting portions that abut on the front surface and the back surface of the first steel sheet pile, and at least one of the pair of abutting portions is the first fixing portion. The length of protrusion from the first steel sheet pile to the first steel sheet pile can be changed, and the length of protrusion from the first fixed portion to the first steel sheet pile can be changed. Since it abuts on either the front surface or the back surface of the sheet pile, the thickness is not constant at each part of the first steel sheet pile, for example, when both sides of the plate constituting the thickness are not parallel surfaces and do not have a spherical seat. It is easy to deal with the case where the normal directions of the contact surfaces facing the steel are different from each other and the desired bonding force may not be obtained.

Further, the second fixing portion has a pair of abutting portions that abut on the front surface and the back surface of the second steel sheet pile, and at least one of the pair of abutting portions is from the second fixing portion to the second steel. The length of protrusion toward the sheet pile can be changed, and the length of protrusion from the second fixed portion toward the second steel sheet pile can be changed. It is preferable to contact any of the back surfaces.

According to this configuration, the second fixing portion has a pair of abutting portions that abut on the front surface and the back surface of the second steel sheet pile, and at least one of the pair of abutting portions is the second fixing portion. The length of protrusion from the second steel sheet pile to the second steel sheet pile can be changed, and the length of protrusion from the second fixed portion to the second steel sheet pile can be changed. Since it abuts on either the front surface or the back surface of the sheet pile, the thickness is not constant at each part of the second steel sheet pile, for example, when both sides of the plate constituting the thickness are not parallel surfaces and do not have a spherical seat. It is easy to deal with the case where the normal directions of the contact surfaces facing the steel are different from each other and the desired bonding force may not be obtained.

According to the connecting tool for steel sheet piles of the present invention, it is possible to connect the steel sheet piles so as to be integrated while coping with the variation in the construction accuracy of connecting the joint portions of the steel sheet piles.

It is a top view which shows the 1st steel sheet pile and the 2nd steel sheet pile connected by the steel sheet pile connecting tool of 1st Embodiment. It is a perspective view which shows the connector for steel sheet piles of 1st Embodiment. It is a perspective view which shows the disassembled state of the connector for steel sheet piles of FIG. It is a top view which shows the periphery of the contact portion of FIG. 1 enlarged. It is a perspective view which shows the disassembled state of the connector for steel sheet piles of 2nd Embodiment. It is a perspective view which shows the disassembled state of the connector for steel sheet piles of 3rd Embodiment. FIG. 6 is an enlarged plan view showing the periphery of the holding portion of the steel sheet pile connector of FIG.

Hereinafter, the steel sheet pile connector according to the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, in the steel sheet pile connecting tool 1a according to the first embodiment of the present invention, the first joint portion 111 of the first steel sheet pile 110 and the second joint portion 121 of the second steel sheet pile 120 are connected to each other. Used in the connected state. The first steel sheet pile 110 and the second steel sheet pile 120 are driven into the ground for excavation and earth retaining in civil engineering work, and are adjacent to each other by the first joint portions 111, 112 and the second joint portions 121, 122 at both ends thereof. It is connected in a row with the joints of other steel sheet piles.

In a state where the first joint portion 111 of the first steel sheet pile 110 and the second joint portion 121 of the second steel sheet pile 120 are connected to each other, the first joint portion 111 and the second joint portion 121 which are connected to each other A steel sheet pile connector 1a is attached to the end face 113 and the end face 123 side of the boundary line 130 on one end side (usually on the upper surface side). The steel sheet pile connector 1a limits the positions of the first joint portion 111 and the second joint portion 121 so as not to shift in a direction parallel to at least the boundary line 130.

As shown in FIGS. 1, 2 and 3, the steel sheet pile connector 1a is made of, for example, carbon steel or the like, and is manufactured by welding, machining, forging, casting, or the like. The length of the steel sheet pile connector 1a in the direction parallel to the boundary line 130 between the first joint portion 111 and the second joint portion 121 connected to each other is, for example, about 150 [mm], and the first steel sheet pile 110 The length of the steel sheet pile connector 1a in the direction parallel to the front surface 124 and the back surface 125 of the front surface 114 and the back surface 115 and the second steel sheet pile 120 is, for example, about 500 [mm].

The steel sheet pile connector 1a includes a first fixing portion 2, a second fixing portion 3, and a holding portion 4a. The first fixing portion 2 straddles the end surface 113 of the first steel sheet pile 110 from one end side (usually the upper side) of the boundary line 130 between the first joint portion 111 and the second joint portion 121 which are connected to each other. As described above, it is fixed to the front surface 114 and the back surface 115 of the first steel sheet pile 110. The second fixing portion 3 is fixed to the front surface 124 and the back surface 125 of the second steel sheet pile 120 so as to straddle the end surface 123 of the second steel sheet pile 120 from one end side of the boundary line 130.

As shown in FIGS. 2 and 3, the holding portion 4a uses the boundary line 130 as the rotation axis while restricting the movement of the second joint portion 121 with respect to the first joint portion 111 in the direction parallel to the boundary line 130. The first fixed portion 2 and the second fixed portion 3 are held so as to allow the angle of the second joint portion 121 to fluctuate with respect to the first joint portion 111.

Specifically, the holding portion 4a is a protrusion protruding from one end of either the first fixing portion 2 or the second fixing portion 3 toward the other side of the first fixing portion 2 or the second fixing portion 3. A portion 7 and a recess 8 recessed from the other end of either the first fixing portion 2 or the second fixing portion 3 to the opposite side of either the first fixing portion 2 or the second fixing portion 3. Have. In the examples of FIGS. 2 and 3, the holding portion 4a has a convex portion 7 protruding from the end portion of the first fixing portion 2 toward the second fixing portion 3 and a first fixing portion 7 from the end portion of the second fixing portion 3. It has a recess 8 that is recessed on the side opposite to the side of the portion 2. However, the holding portion 4a is opposite to the convex portion 7 protruding from the end of the second fixing portion 3 toward the first fixing portion 2 and the side of the second fixing portion 3 from the end of the first fixing portion 2. It may have a recess 8 recessed on the side.

The holding portion 4a limits the movement of the second joint portion 121 with respect to the first joint portion 111 in the direction parallel to the boundary line 130 by fitting the convex portion 7 and the concave portion 8 to each other, and the boundary line 130. The first fixed portion 2 and the second fixed portion 3 are held so as to allow the angle of the second joint portion 121 to fluctuate with respect to the first joint portion 111 having the rotation axis.

That is, when the steel sheet pile connector 1a is attached to the first steel sheet pile 110 and the second steel sheet pile 120, the second joint portion 121 with respect to the first joint portion 111 having the boundary line 130 as the rotation axis due to the variation in construction accuracy. Even if the angle deviates from the regular angle, the steel sheet pile connecting tool 1a can be attached. Further, after the steel sheet pile connecting tool 1a is attached to the first steel sheet pile 110 and the second steel sheet pile 120, the positions of the first joint portion 111 and the second joint portion 121 are determined by the steel sheet pile connecting tool 1a. It is restricted so as not to shift in the direction parallel to the boundary line 130.

As shown in FIGS. 2 and 3, in order to maintain the strength of the convex portion 7, the length of the convex portion 7 in the direction parallel to the boundary line 130 is, for example, parallel to the boundary line 130 of the steel sheet pile connector 1a. It is about 50 [mm], which is 1/3 of the length in the parallel direction. Further, in order to maintain the strength of the recess 8, the length of the recess 8 in the direction parallel to the boundary line 130 is, for example, 1/3 of the length in the direction parallel to the boundary line 130 of the steel sheet pile connector 1a. It is about 50 [mm]. The convex portion 7 and the concave portion 8 are fitted to each other, and the movement of the second joint portion 121 with respect to the first joint portion 111 in the direction parallel to the boundary line 130 is limited to about several to a dozen [mm]. Since it is sufficient that the angle of the second joint portion 121 with respect to the first joint portion 111 having the boundary line 130 as the rotation axis is allowed to fluctuate, the convex portion 7 and the concave portion 8 are not required to have strict dimensional accuracy.

As shown in FIGS. 2 and 3, the holding portion 4a is formed in a pin hole portion 9 and a pin hole portion 9 that penetrate the convex portion 7 and the concave portion 8 fitted to each other in a direction parallel to the boundary line 130. It has a pin 5 to be inserted, and the pin 5 holds the first fixing portion 2 and the second fixing portion 3 so as not to separate from each other. One end of the pin 5 includes an annular or T-shaped handle 6 for convenience of transport, insertion and removal. After the pin 5 is inserted into the pin hole 9, the end of the pin 5 opposite to the handle 6 may be fixed to the pin hole 9 by a nut.

Since the pin 5 is merely for holding the first fixing portion 2 and the second fixing portion 3 so as not to be separated from each other, the inner diameter of the pin hole portion 9 is 1 to several [1 to several [] rather than the outer diameter of the pin 5. The pin 5 inserted into the pin hole portion 9 is larger than [mm] and can move in the pin hole portion 9. The pin hole portion 9 may have an elongated hole having an elliptical or rectangular cross section. Further, the pin 5 is not indispensable, and the holding portion 4a of the steel sheet pile connector 1a may not include the pin 5.

As shown in FIG. 4, the first fixing portion 2 has a pair of contact portions 10 and 11 that abut on the front surface 114 and the back surface 115 of the first steel sheet pile 110, respectively. Further, the second fixing portion 3 has a pair of contact portions 10 and 11 that abut on the front surface 124 and the back surface 125 of the second steel sheet pile 120, respectively. Specifically, the abutting portions 10 and 11 are bolts manufactured from, for example, tool steel and screwed into the first fixing portion 2 and the second fixing portion 3.

At least one of the pair of contact portions 10 and 11 of the first fixing portion 2 can change the length of protrusion from the first fixing portion 2 toward the first steel sheet pile 110. Further, at least one of the pair of contact portions 10 and 11 of the second fixing portion 3 can change the length of protrusion from the second fixing portion 3 toward the second steel sheet pile 120. In the example of FIG. 4, the length of the contact portion 10 of the first fixing portion 2 protruding from the first fixing portion 2 toward the first steel sheet pile 110 can be changed, and the contact portion of the second fixing portion 3 can be changed. The length of the 10 protruding from the second fixing portion 3 toward the second steel sheet pile 120 can be changed freely. However, the length of both the pair of contact portions 10 and 11 of the first fixing portion 2 protruding from the first fixing portion 2 toward the first steel sheet pile 110 can be changed, and the pair of the second fixing portions 3 can be changed. The length of both the contact portions 10 and 11 protruding from the second fixing portion 3 toward the second steel sheet pile 120 may be freely changed.

The abutting portion 10 whose length of projecting from the first fixing portion 2 toward the first steel sheet pile 110 can be changed abuts on the surface 114 of the first steel sheet pile 110 via the spherical seat 12. Further, the abutting portion 10 whose length of projecting from the second fixing portion 3 toward the second steel sheet pile 120 can be changed abuts on the surface 124 of the second steel sheet pile 120 via the spherical seat 12. Even when the surface 114 of the first steel sheet pile 110 and the surface 124 of the second steel sheet pile 120 are not perpendicular to the direction in which the contact portion 10 protrudes, the angle of the tip of the contact portion 10 due to the spherical seat 12 Will fluctuate, and many areas of the tip of the contact portion 10 will come into contact with the surfaces 114 and 124.

According to the present embodiment, the steel sheet pile connector 1a used in a state where the first joint portion 111 of the first steel sheet pile 110 and the second joint portion 121 of the second steel sheet pile 120 are connected to each other On the front surface 114 and the back surface 115 of the first steel sheet pile 110 so as to straddle the end surface 113 of the first steel sheet pile 110 from one end side of the boundary line 130 between the first joint portion 111 and the second joint portion 121 connected to each other. The first fixing portion 2 to be fixed and the second fixing portion 3 fixed to the front surface 124 and the back surface 125 of the second steel sheet pile 120 so as to straddle the end surface 123 of the second steel sheet pile 120 from one end side of the boundary line 130. And, while restricting the movement of the second joint portion 121 with respect to the first joint portion 111 in the direction parallel to the boundary line 130, the angle of the second joint portion 121 with respect to the first joint portion 111 with the boundary line 130 as the rotation axis. The first joint portion 111 and the second joint portion 121, which are connected to each other, are connected to each other in order to include the holding portion 4a for holding the first fixing portion 2 and the second fixing portion 3 so as to allow the fluctuation of the above. The first steel sheet pile 110 and the second steel sheet pile 120 can be connected so as to be integrated while dealing with the variation in the construction accuracy of the above.

Further, according to the present embodiment, the holding portion 4a is from one end of the first fixing portion 2 and the second fixing portion 3 to the other side of the first fixing portion 2 and the second fixing portion 3. A concave portion 7 protruding from the surface and a recess on the side opposite to one side of the first fixed portion 2 and the second fixed portion 3 from the other end of either the first fixed portion 2 or the second fixed portion 3. By having the concave portion 8 and the convex portion 7 and the concave portion 8 fitting to each other, the movement of the second joint portion 121 with respect to the first joint portion 111 in the direction parallel to the boundary line 130 is restricted. In order to hold the first fixed portion 2 and the second fixed portion 3 so as to allow the angle of the second joint portion 121 to fluctuate with respect to the first joint portion 111 having the boundary line 130 as the rotation axis, the holding portion 4a The structure can be simplified.

Further, according to the present embodiment, the holding portion 4a is inserted into the pin hole portion 9 and the pin hole portion 9 that penetrate the convex portion 7 and the concave portion 8 fitted to each other in the direction parallel to the boundary line 130. It has a pin 5 to be formed, and the pin 5 holds the first fixing portion 2 and the second fixing portion 3 so as not to be separated from each other. Therefore, for example, at a construction site, it has a convex portion 7 that fits with each other. It becomes easy to prepare the first fixing portion 2 and the second fixing portion 3 having the recess 8 in just proportion.

Further, according to the present embodiment, the first fixing portion 2 has a pair of abutting portions 10 and 11 that abut on the front surface 114 and the back surface 115 of the first steel sheet pile 110, respectively, and the pair of abutting portions 10 , 11 can change the length of protrusion from the first fixing portion 2 toward the first steel sheet pile 110, and the length protruding from the first fixing portion 2 toward the first steel sheet pile 110. Since the abutting portion 10 whose size can be changed abuts on either the front surface 114 or the back surface 115 of the first steel sheet pile 110 via the spherical seat 12, for example, the thickness of the first steel sheet pile 110 is not constant. For example, when the front surfaces 114 and the back surface 115 on both sides of the first steel sheet pile 110 constituting the thickness are not parallel surfaces and do not have the spherical seat 12, the normal directions of the abutting surfaces facing each other are different from each other. It is easy to handle even when the joining force may not be obtained.

Further, according to the present embodiment, the second fixing portion 3 has a pair of abutting portions 10 and 11 that abut on the front surface 124 and the back surface 125 of the second steel sheet pile 120, respectively, and the pair of abutting portions 10 , 11 can change the length of protrusion from the second fixing portion 3 toward the second steel sheet pile 120, and the length protruding from the second fixing portion 3 toward the second steel sheet pile 120. Since the abutting portion 10 whose size can be changed abuts on either the front surface 124 or the back surface 125 of the second steel sheet pile 120 via the spherical seat 12, the thickness of the second steel sheet pile 120 is not constant, for example. When the front surfaces 124 and the back surface 125 on both sides of the second steel sheet pile 120 constituting the thickness are not parallel surfaces and do not have the spherical seat 12, the normal directions of the facing contact surfaces are different from each other, and the desired bonding force is obtained. It is easy to deal with the case where

Hereinafter, the second embodiment of the present invention will be described. As shown in FIG. 5, the holding portion 4b of the steel sheet pile connector 1b of the present embodiment includes both the front surface 114 and the back surface 115 of the first steel sheet pile 110 and both the front surface 124 and the back surface 125 of the second steel sheet pile 120. Has a convex portion 7 and a concave portion 8. In the example of FIG. 5, the first fixing portion 2 has convex portions 7 on both the front surface 114 and the back surface 115 of the first steel sheet pile 110, and the second fixing portion 3 has the front surface 124 and the surface 124 of the second steel sheet pile 120. Recesses 8 are provided on both sides of the back surface 125.

However, the first fixing portion 2 has recesses 8 on both the front surface 114 and the back surface 115 of the first steel sheet pile 110, and the second fixing portion 3 has recesses 8 on both the front surface 124 and the back surface 125 of the second steel sheet pile 120. The convex portion 7 may be provided on the side. Further, the first fixing portion 2 has the convex portion 7 on either the front surface 114 or the back surface 115 of the first steel sheet pile 110 so that the convex portion 7 and the concave portion 8 are fitted to each other, and the front surface 114. And the back surface 115 has a concave portion 8 on the other side, and the second fixing portion 3 has a convex portion 7 on either the front surface 124 or the back surface 125 of the second steel sheet pile 120, and the front surface 124 and The recess 8 may be provided on either side of the back surface 125.

The holding portion 4b borders the convex portion 7 and the concave portion 8 fitted to each other on at least one side of the front surface 114 and the back surface 115 of the first steel sheet pile 110 and the front surface 124 and the back surface 125 of the second steel sheet pile 120. It has a pin hole portion 9 penetrating in a direction parallel to the wire 130 and a pin 5 inserted into the pin hole portion 9, and the pin 5 does not separate the first fixing portion 2 and the second fixing portion 3 from each other. Hold as.

As shown in FIG. 5, the holding portion 4b may include pins 5 on both the front surface 114 and the back surface 115 of the first steel sheet pile 110 and the front surface 124 and the back surface 125 of the second steel sheet pile 120. Further, as described above for the first embodiment, the pin 5 is not essential, and the holding portion 4b of the steel sheet pile connector 1b is the front surface 114 and the back surface 115 of the first steel sheet pile 110 and the second steel sheet pile 120. The pin 5 may not be provided on either side of the front surface 124 and the back surface 125.

According to the present embodiment, the holding portion 4b has a convex portion 7 and a concave portion 8 on both the front surface 114 and the back surface 115 of the first steel sheet pile 110 and the front surface 124 and the back surface 125 of the second steel sheet pile 120. , The same convex portion 7 and the concave portion 8 as compared with the case where the front surface 114 and the back surface 115 of the first steel sheet pile 110 and the convex portion 7 and the concave portion 8 are provided only on one side of the front surface 124 and the back surface 125 of the second steel sheet pile 120. Even if the concave portion 8, the strength of the convex portion 7 and the concave portion 8 with respect to the force for moving the second joint portion 121 with respect to the first joint portion 111 in the direction parallel to the boundary line 130, and the rotation intersecting the boundary line 130. It is possible to improve the strength of the convex portion 7 and the concave portion 8 against the force of twisting the second joint portion 121 with respect to the first joint portion 111 around the axis. Further, the strength is the same as that in the case where the convex portion 7 and the concave portion 8 are provided only on one side of the front surface 114 and the back surface 115 of the first steel sheet pile 110 and the front surface 124 and the back surface 125 of the second steel sheet pile 120. However, the convex portion 7 and the concave portion 8 can be made smaller.

Further, according to the present embodiment, the holding portions 4b are fitted to each other on at least one side of the front surface 114 and the back surface 115 of the first steel sheet pile 110 and the front surface 124 and the back surface 125 of the second steel sheet pile 120. It has a pin hole portion 9 that penetrates the convex portion 7 and the concave portion 8 in a direction parallel to the boundary line 130, and a pin 5 that is inserted into the pin hole portion 9. 2 In order to hold the fixing portion 3 so as not to separate from each other, for example, at the construction site, the first fixing portion 2 having the convex portion 7 and the second fixing portion 3 having the concave portion 8 that are fitted to each other are not excessively deficient. It will be easy to prepare.

Hereinafter, a third embodiment of the present invention will be described. As shown in FIG. 6, in the present embodiment, the holding portion 4c of the steel sheet pile connecting tool 1c has a concave portion 8 on the side of the first fixing portion 2 and a convex portion 7 on the side of the second fixing portion 3. Have. The holding portion 4c has an outer peripheral surface 13 parallel to the boundary line 130 in the convex portion 7 and an inner peripheral surface 14 parallel to the boundary line 130 in the concave portion 8, and the outer peripheral surface 13 and the inner peripheral surface 14 slide against each other. By moving, the first fixed portion 2 and the second fixed portion 3 are held so as to allow the angle of the second joint portion 121 to fluctuate with respect to the first joint portion 111 having the boundary line 130 as the rotation axis. A plurality of grooves that slide with each other while being fitted to each other are provided on the outer peripheral surface 13 and the inner peripheral surface 14 along the vertical direction of the boundary line.

As shown in FIGS. 6 and 7, the holding portion 4c has a pin hole portion 9 penetrating the outer peripheral surface 13 and the inner peripheral surface 14 that slide with each other, and a pin 5 inserted into the pin hole portion 9. Then, the pin 5 holds the first fixing portion 2 and the second fixing portion 3 so as not to separate from each other. Specifically, the pin 5 is, for example, a bolt screwed into the pin hole portion 9 of the outer peripheral surface 13. The cross section of the pin hole portion 9 penetrating the inner peripheral surface 14 has a cross section of the boundary line 130 so as to allow the angle of the second joint portion 121 to fluctuate with respect to the first joint portion 111 having the boundary line 130 as the rotation axis. It is an elongated hole such as an ellipse or a rectangle whose longitudinal direction is orthogonal to each other. The holding portion 4c of the steel sheet pile connector 1c does not have to be provided with the pin 5.

According to the present embodiment, the holding portion 4c has an outer peripheral surface 13 parallel to the boundary line 130 in the convex portion 7 and an inner peripheral surface 14 parallel to the boundary line 130 in the concave portion 8, and is inside the outer peripheral surface 13. The first fixed portion 2 and the second fixed portion 2 and the second fixed portion 2 are allowed to fluctuate in the angle of the second joint portion 121 with respect to the first joint portion 111 having the boundary line 130 as the rotation axis by sliding the peripheral surfaces 14 with each other. Since the portion 3 and the portion 3 are held, the structure of the holding portion 4c can be simplified.

Further, according to the present embodiment, the holding portion 4c has a pin hole portion 9 penetrating the outer peripheral surface 13 and the inner peripheral surface 14 that slide with each other, and a pin 5 inserted into the pin hole portion 9. In order to hold the first fixing portion 2 and the second fixing portion 3 so as not to be separated from each other by the pins 5, for example, at the construction site, the first fixing portion 2 and the convex portion 7 having concave portions 8 to be fitted to each other. It becomes easy to prepare the second fixing portion having the above in just proportion.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and is implemented in various forms.

1a, 1b, 1c ... Steel sheet pile connector, 2 ... 1st fixing part, 3 ... 2nd fixing part, 4a, 4b, 4c ... Holding part, 5 ... Pin, 6 ... Handle, 7 ... Convex part, 8 ... Recessed portion, 9 ... Pin hole portion, 10, 11 ... Contact portion, 12 ... Spherical seat, 13 ... Outer peripheral surface, 14 ... Inner peripheral surface, 110 ... First steel sheet pile, 111, 112 ... First joint portion, 113 ... End face, 114 ... front surface, 115 ... back surface, 120 ... second steel sheet pile, 121, 122 ... second joint portion, 123 ... end face, 124 ... front surface, 125 ... back surface, 130 ... boundary line.

Claims (9)

A steel sheet pile connector used in a state where the first joint portion of the first steel sheet pile and the second joint portion of the second steel sheet pile are connected to each other.
The first steel sheet pile is fixed to the front surface and the back surface of the first steel sheet pile so as to straddle the end surface of the first steel sheet pile from one end side of the boundary line between the first joint portion and the second joint portion connected to each other. 1 fixed part and
A second fixing portion fixed to the front surface and the back surface of the second steel sheet pile so as to straddle the end surface of the second steel sheet pile from the one end side of the boundary line.
Fluctuations in the angle of the second joint portion with respect to the first joint portion having the boundary line as the rotation axis while restricting the movement of the second joint portion with respect to the first joint portion in a direction parallel to the boundary line. A holding portion that holds the first fixing portion and the second fixing portion so as to allow
Equipped with a,
The holding portion includes a convex portion protruding from one end of the first fixing portion and the second fixing portion toward the other side of the first fixing portion and the second fixing portion, and the first fixing portion. It has a recess that is recessed from the other end of the 1 fixing portion and the second fixing portion to the side opposite to one side of the first fixing portion and the second fixing portion, and the convex portion. By fitting the recess and the recess into each other, the first joint having the boundary as a rotation axis while restricting the movement of the second joint with respect to the first joint in a direction parallel to the boundary. A steel sheet pile connector that holds the first fixing portion and the second fixing portion so as to allow the angle of the second joint portion to fluctuate with respect to the joint portion. The holding portion has a pin hole portion that penetrates the convex portion and the concave portion that are fitted to each other in a direction parallel to the boundary line, and a pin that is inserted into the pin hole portion. holds and the second fixing portion and the first fixing portion so as not to separate from each other, connector for steel sheet pile according to claim 1. The holding portion includes a first sheet pile and the front and rear surfaces of both the said convex portion on the side recess of the second sheet pile, connector for steel sheet pile according to claim 1. The holding portion penetrates the convex portion and the concave portion fitted to each other on at least one side of the front surface and the back surface of the first steel sheet pile and the second steel sheet pile in a direction parallel to the boundary line. a pin hole portion for, and a pin inserted into the pin holes by the pins, to hold the said first fixing portion and the second fixing part so as not to separate from each other, according to claim 3 Connecting tool for steel sheet piles. The holding portion has an outer peripheral surface parallel to the boundary line in the convex portion and an inner peripheral surface parallel to the boundary line in the concave portion, and the outer peripheral surface and the inner peripheral surface slide with each other. The claim that the first fixed portion and the second fixed portion are held so as to allow the angle of the second joint portion to fluctuate with respect to the first joint portion whose rotation axis is the boundary line. The connecting tool for steel sheet piles according to 1. The holding portion has a pin hole portion that penetrates the outer peripheral surface and the inner peripheral surface that slide with each other, and a pin that is inserted into the pin hole portion. The steel sheet pile connector according to claim 5 , which holds the second fixing portion so as not to separate from each other. A steel sheet pile connector used in a state where the first joint portion of the first steel sheet pile and the second joint portion of the second steel sheet pile are connected to each other.
The first steel sheet pile is fixed to the front surface and the back surface of the first steel sheet pile so as to straddle the end surface of the first steel sheet pile from one end side of the boundary line between the first joint portion and the second joint portion connected to each other. 1 fixed part and
A second fixing portion fixed to the front surface and the back surface of the second steel sheet pile so as to straddle the end surface of the second steel sheet pile from the one end side of the boundary line.
Fluctuations in the angle of the second joint portion with respect to the first joint portion having the boundary line as the rotation axis while restricting the movement of the second joint portion with respect to the first joint portion in a direction parallel to the boundary line. A holding portion that holds the first fixing portion and the second fixing portion so as to allow
Equipped with a,
The first fixing portion has a pair of contact portions that abut on the front surface and the back surface of the first steel sheet pile.
At least one of the pair of the contact portions can change the length of protrusion from the first fixing portion toward the first steel sheet pile, and is directed from the first fixing portion toward the first steel sheet pile. A connecting tool for steel sheet piles , wherein the abutting portion whose protruding length can be changed abuts on either the front surface or the back surface of the first steel sheet pile via a spherical seat. The first fixing portion has a pair of contact portions that abut on the front surface and the back surface of the first steel sheet pile.
At least one of the pair of the abutting portions can change the length of protrusion from the first fixing portion toward the first steel sheet pile, and is directed from the first fixing portion toward the first steel sheet pile. The steel sheet pile according to any one of claims 1 to 6 , wherein the contact portion whose protruding length can be changed abuts on either the front surface or the back surface of the first steel sheet pile via a spherical seat. For connecting tools. The second fixing portion has a pair of contact portions that abut on the front surface and the back surface of the second steel sheet pile.
At least one of the pair of the abutting portions can change the length of protrusion from the second fixing portion toward the second steel sheet pile, and is directed from the second fixing portion toward the second steel sheet pile. The steel sheet pile according to any one of claims 1 to 8, wherein the abutting portion whose protruding length can be changed abuts on either the front surface or the back surface of the second steel sheet pile via a spherical seat. For connecting tools.

Images