JP2019019470A - Steel sheet pile connector - Google Patents

Abstract

To connect so that steel sheet piles are integrated with each other while further corresponding to variations in the accuracy of connection between joint portions of the steel sheet piles.SOLUTION: A steel sheet pile connector 1a comprises a first fixing portion 2 fixed to a first steel sheet pile board 110 so as to straddle an end face 113 of the first steel sheet pile board 110 from one end side of a boundary line 130 between a first joint portion 111 and a second joint portion 121 which are connected to each other, a second fixing portion 3 fixed to a second steel sheet pile 120 so as to straddle an end face 123 of the second steel sheet pile 120 from the one end side of the boundary line 130, and a holding portion 4a that restricts a movement of the second joint portion 121 relative to the first joint portion 111 in a direction parallel to the boundary line 130 and holds the first fixing portion 2 and the second fixing portion 3 while permitting fluctuation of an angle of the second joint portion 121 with respect to the first joint portion 111 with the boundary line 130 as its rotation axis. Therefore, the first steel sheet pile 110 and the second steel sheet pile 120 can be connected to each other so as to be integrated while further corresponding to variations in the accuracy of connection between the first joint portion 111 and the second joint portion 121.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a steel sheet pile connector.

  Steel sheet piles for excavation and earth retaining in civil engineering work are usually connected by intruding into the ground in order to fit in the longitudinal direction with joint parts of other steel sheet piles adjacent by joint parts called sections. The surface is composed as a whole. The steel sheet pile installed in this way constitutes a surface as a whole and resists earth pressure and water pressure. At this time, the surface as a whole bends in the out-of-plane direction. When a larger external force acts on a part of the constituent surface, that is, a part of the steel sheet pile than the other part of the surface, shear deformation occurs in the joint portion, and a relative shift of the joint portion tends to occur. However, there is no means for suppressing the shear deformation when it is placed on the joint portion that is only fitted in the longitudinal direction, and the deformation amount of the entire surface increases. Therefore, generally, a method of suppressing the shear deformation of the joint portion by fastening the vicinity of the top portion of the joint portion of the steel sheet pile with welding or an attachment metal is taken for the purpose of suppressing the deformation of the surface. However, in the conventional method, it is necessary to remove the shear restraining structure not only when the steel sheet pile is installed but also when the steel sheet pile is removed. Therefore, a simple joint top fastening method is required. Patent Document 1 discloses a steel sheet pile composed of an integrated frame in which two chuck frames attached so as to straddle each of the upper end surfaces of two steel sheet piles whose joints are connected to each other are connected to each other. A connector is disclosed. The steel sheet pile connector disclosed in Patent Document 1 integrates the steel sheet piles connected in a row more firmly by strengthening the connection between the joint portions of the steel sheet piles, and only a part of the steel sheet piles by external force. Is prevented from moving.

JP 2000-345556 A

  By the way, in a general construction site, the construction accuracy of the connection between the joint portions of the steel sheet piles connected to each other, especially the variation of the installation angle is large, and when installing the steel sheet pile connector as described above, 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 properly screwed to one steel sheet pile among adjacent steel sheet piles The screwing angle is not appropriate for other steel sheet piles, and it may be difficult to fix the connecting portion.

  Then, an object of this invention is to provide the connector for steel sheet piles which can be connected so that steel sheet piles may be integrated, respond | corresponding by the dispersion | variation in the construction precision of the connection of the joint parts of a steel sheet pile.

  The present invention is a steel sheet pile connector used in a state in which 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 is connected to each other. A first fixing portion fixed to the front and back surfaces of the first steel sheet pile so as to straddle the end surface of the first steel sheet pile from the one end side of the boundary line between the one joint portion and the second joint portion; A second fixing portion fixed to the front and back surfaces of the second steel sheet pile so as to straddle the end surface of the second steel sheet pile from the side, and movement of the second joint portion relative to the first joint portion in a direction parallel to the boundary line. A steel provided with a holding part that holds the first fixing part and the second fixing part so as to allow a change in the angle of the second joint part with respect to the first joint part with the boundary line as the rotation axis while limiting It is a connector for sheet piles.

  According to this structure, the steel sheet pile connector used in the state in which 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. A first fixing portion fixed to the front and back surfaces of the first steel sheet pile so as to straddle the end surface of the first steel sheet pile from the one end side of the boundary line between the one joint portion and the second joint portion; A second fixing portion fixed to the front and back surfaces of the second steel sheet pile so as to straddle the end surface of the second steel sheet pile from the side, and movement of the second joint portion relative to the first joint portion in a direction parallel to the boundary line. In order to provide a holding portion that holds the first fixing portion and the second fixing portion so as to allow variation 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, The first steel while responding to variations in construction accuracy of the connection between the first joint part and the second joint part connected to each other It can be a plate and the second sheet pile is connected to integrate.

  In this case, the holding portion includes a convex portion projecting from either one of the first fixing portion and the second fixing portion to the other side of the first fixing portion and the second fixing portion, and the first fixing portion. And a recess recessed from either one of the other ends of the second fixing portion to the opposite side of the first fixing portion or the second fixing portion, and the protrusion and the recess are fitted to each other. By restricting the movement of the second joint part relative to the first joint part in the direction parallel to the boundary line, the angle of the second joint part relative to the first joint part having the boundary line as the rotation axis is allowed to vary. As described above, it is preferable to hold the first fixing portion and the second fixing portion.

  According to this configuration, the holding portion includes a convex portion protruding from either one of the first fixing portion and the second fixing portion to the other side of the first fixing portion and the second fixing portion, The first fixing portion and the second fixing portion have a recess that is recessed from the other end of the first fixing portion and the second fixing portion on the opposite side of the first fixing portion and the second fixing portion. By fitting each other, the movement of the second joint portion relative to the first joint portion in the direction parallel to the boundary line is limited, and the angle of the second joint portion relative to the first joint portion having the boundary line as the rotation axis is limited. Since the first fixing portion and the second fixing portion are held so as to allow variation, 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 that is inserted into the pin hole portion. It is preferable that the first fixing portion and the second fixing portion are held by a pin so as not to be separated from each other.

  According to this configuration, the holding portion includes the 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 the pin that is inserted into the pin hole portion. In order to hold the first fixing part and the second fixing part so as not to be separated from each other, for example, at the construction site, the first fixing part having the convex part and the second fixing part having the concave part are excessively insufficient at the construction site. It becomes easy to prepare without.

  Moreover, when a holding | maintenance part has a convex part and a recessed part, it is suitable for a holding | maintenance part to have a convex part and a recessed part on both the surface and the back surface side of a 1st steel sheet pile and a 2nd steel sheet pile.

  According to this structure, since a holding | maintenance part has a convex part and a recessed part in the both sides of the surface and back surface of a 1st steel sheet pile and a 2nd steel sheet pile, the surface and back surface of a 1st steel sheet pile and a 2nd steel sheet pile Compared to the case where the convex portion and the concave portion are provided only on one side of the first and second concave portions, the second joint portion is moved relative to the first joint portion in the direction parallel to the boundary line even in the case of the same convex portion and concave portion. The strength of the convex part and the concave part against the force and the strength of the convex part and the concave part against the force twisting the second joint part with respect to the first joint part around the rotation axis intersecting the boundary line can be improved. Moreover, even if it is the same intensity | strength compared with the case where it has a convex part and a recessed part only in the one side of the surface of a 1st steel sheet pile and a 2nd steel sheet pile, and a back surface, a convex part and a recessed part can be made small. it can.

  In this case, the holding portion has a pin hole penetrating in a direction parallel to the boundary line through the convex portion and the concave portion fitted to each other on at least one side of the front and back surfaces of the first steel sheet pile and the second steel sheet pile. And a pin inserted into the pin hole, and the first fixing portion and the second fixing portion are preferably held by the pin so as not to be separated from each other.

  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 a direction parallel to the boundary line. For example, in a construction site, the first fixing portion and the second fixing portion are fitted to each other so that the first fixing portion and the second fixing portion are not separated from each other. It is easy to prepare the first fixing part having the convex part and the second fixing part having the concave part without excess or deficiency.

  In addition, when the holding part has a convex part and a concave part, the holding part has an outer peripheral surface parallel to the boundary line in the convex part and an inner peripheral surface parallel to the boundary line in the concave part, and The first fixing portion and the second fixing portion are held so as to allow variation in the angle of the second joint portion with respect to the first joint portion having the boundary line as the rotation axis by sliding with the peripheral surface. Is preferred.

  According to this configuration, the holding portion has an outer peripheral surface parallel to the boundary line at the convex portion and an inner peripheral surface parallel to the boundary line at the concave portion, and the outer peripheral surface and the inner peripheral surface slide relative to each other. Therefore, in order to hold the first fixed portion and the second fixed portion so as to allow variation in the angle of the second joint portion with respect to the first joint portion having the boundary line as the rotation axis, the structure of the holding portion is simply 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, and the first fixing portion and the second fixing portion are inserted by the pins. Are preferably held so as not to separate from each other.

  According to this configuration, the holding portion includes the pin hole portion that penetrates the outer peripheral surface and the inner peripheral surface that slide with each other, and the pin that is inserted into the pin hole portion. In order to hold the two fixing parts so as not to be separated from each other, for example, at the construction site, it is easy to prepare the first fixing part having the recesses that fit together and the second fixing part having the protrusions without excess or deficiency. It becomes.

  The first fixing portion has a pair of abutting portions that abut each of the front and back surfaces 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 protruding toward the sheet pile can be changed, and the length of the contact portion protruding from the first fixing portion toward the first steel sheet pile can be changed via the spherical seat and the surface of the first steel sheet pile It is preferable to contact any one of the back surfaces.

  According to this configuration, the first fixing portion has a pair of abutting portions that abut each of the front and back surfaces of the first steel sheet pile, and at least one of the pair of abutting portions is the first fixing portion. The length projecting from the first steel sheet pile toward the first steel sheet pile can be changed, and the length of the contact section projecting from the first fixed part toward the first steel sheet pile can be changed via the spherical seat. The thickness of each part of the first steel sheet pile is not constant because it contacts either the front or back of the sheet pile. For example, both sides of the plate constituting the thickness are not parallel surfaces and do not have spherical seats. It is easy to cope with cases where the normal directions of the contact surfaces facing each other are different from each other and the desired joining force may not be obtained.

  The second fixing portion has a pair of abutting portions that abut each of the front and back surfaces 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 protruding toward the sheet pile can be freely changed, and the length of the contact portion protruding from the second fixed portion toward the second steel sheet pile can be changed via the spherical seat and the surface of the second steel sheet pile It is preferable to contact any one of the back surfaces.

  According to this configuration, the second fixing portion has a pair of abutting portions that abut each of the front and back surfaces of the second steel sheet pile, and at least one of the pair of abutting portions is the second fixing portion. The length protruding from the second steel sheet pile toward the second steel sheet pile can be freely changed, and the length of the contact portion protruding from the second fixed part toward the second steel sheet pile can be changed via the spherical seat. The thickness of each part of the second steel sheet pile is not constant because it contacts either the front or back of the sheet pile. For example, both sides of the plate constituting the thickness are not parallel surfaces and do not have a spherical seat. It is easy to cope with cases where the normal directions of the contact surfaces facing each other are different from each other and the desired joining force may not be obtained.

  According to the steel sheet pile connector of the present invention, it is possible to connect the steel sheet piles so as to be integrated with each other while responding to variations in construction accuracy of the connection between the joint portions of the steel sheet piles.

It is a top view which shows the 1st steel sheet pile and 2nd steel sheet pile connected by the coupling tool for steel sheet piles of 1st Embodiment. It is a perspective view which shows the steel sheet pile connector of 1st Embodiment. It is a perspective view which shows the state which the coupling tool for steel sheet piles of FIG. 2 decomposed | disassembled. It is a top view which expands and shows the periphery of the contact part of FIG. It is a perspective view which shows the state which the coupling tool for steel sheet piles of 2nd Embodiment decomposed | disassembled. It is a perspective view which shows the state which the connector for steel sheet piles of 3rd Embodiment decomposed | disassembled. It is a top view which expands and shows the periphery of the holding part of the coupling tool for steel sheet piles 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 connector 1 a 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 mutually connected. Used in linked 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 and 112 and the second joint portions 121 and 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 that are connected to each other The steel sheet pile connector 1a is attached to the end surface 113 and the end surface 123 on one end side of the boundary line 130 (usually on the upper surface side). By the steel sheet pile connector 1 a, the positions of the first joint portion 111 and the second joint portion 121 are restricted so as not to shift at least in a direction parallel to 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 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]. The length of the steel sheet pile connector 1a in a direction parallel to the front surface 114 and the back surface 115 of the second steel sheet 120 and the front surface 124 and the back surface 125 of 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 1st fixing | fixed part 2 straddles the end surface 113 of the 1st steel sheet pile 110 from the one end side (usually upper side) of the boundary line 130 of the 1st joint part 111 and the 2nd joint part 121 which are mutually connected. Thus, it is fixed to the front surface 114 and the back surface 115 of the first steel sheet pile 110. The 2nd fixing | fixed part 3 is fixed to the surface 124 and the back surface 125 of the 2nd steel sheet pile 120 so that the end surface 123 of the 2nd steel sheet pile 120 may be straddled from the one end side of the boundary line 130. FIG.

  As shown in FIGS. 2 and 3, the holding portion 4 a uses the boundary line 130 as a rotation axis while restricting the movement of the second joint portion 121 relative to the first joint portion 111 in a direction parallel to the boundary line 130. The 1st fixing | fixed part 2 and the 2nd fixing | fixed part 3 are hold | maintained so that the fluctuation | variation of the angle of the 2nd coupling part 121 with respect to the 1st coupling part 111 may be accept | permitted.

  Specifically, the holding portion 4 a is a protrusion that protrudes from either one 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 8 that is recessed from the other end of the first fixing portion 2 and the second fixing portion 3 to the opposite side of the first fixing portion 2 and the second fixing portion 3. Have In the example of FIGS. 2 and 3, the holding portion 4 a includes the convex portion 7 protruding from the end portion of the first fixing portion 2 toward the second fixing portion 3 and the first fixing portion from the end of the second fixing portion 3. It has the recessed part 8 dented in the opposite side to the part 2 side. 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 end of the first fixing portion 2 to the second fixing portion 3 side. You may have the recessed part 8 dented in the side.

  The holding portion 4a is configured such that the convex portion 7 and the concave portion 8 are fitted to each other, thereby 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, and the boundary line 130. The first fixing portion 2 and the second fixing portion 3 are held so as to allow a change in the angle of the second joint portion 121 with respect to the first joint portion 111 with the rotation axis as 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 of the first joint portion 111 with respect to the first joint portion 111 having the boundary line 130 as the rotation axis due to variations in construction accuracy. Even if the angle deviates from the normal angle, the steel sheet pile connector 1a can be attached. After the steel sheet pile connector 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 moved by the steel sheet pile connector 1a. It is restricted so as not to shift in a 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 in the direction parallel to the boundary line 130 of the convex portion 7 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 any direction. In order to maintain the strength of the recess 8, the length in the direction parallel to the boundary line 130 of the recess 8 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 several tens [mm], Strict dimensional accuracy is not required for the convex portion 7 and the concave portion 8 as long as the angle variation 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.

  As shown in FIGS. 2 and 3, the holding portion 4 a includes a pin hole portion 9 that penetrates the convex portion 7 and the concave portion 8 fitted to each other in a direction parallel to the boundary line 130, and the pin hole portion 9. The first fixing portion 2 and the second fixing portion 3 are held by the pin 5 so as not to be separated 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 with a nut.

  Since the pin 5 is simply for holding the first fixing portion 2 and the second fixing portion 3 so as not to separate each other, the inner diameter of the pin hole portion 9 is one to several than the outer diameter of the pin 5. mm] or more, and the pin 5 inserted into the pin hole 9 is movable in the pin hole 9. The pin hole 9 may be a long hole having a cross section of an ellipse or a rectangle. Moreover, the pin 5 is not essential, and the holding part 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 contact the front surface 114 and the back surface 115 of the first steel sheet pile 110. Moreover, the 2nd fixing | fixed part 3 has a pair of contact part 10 and 11 contact | abutted to each of the surface 124 and the back surface 125 of the 2nd steel sheet pile 120. FIG. Specifically, the contact 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 be freely changed in length protruding from the first fixing portion 2 toward the first steel sheet pile 110. Moreover, at least any one of a pair of contact part 10 and 11 of the 2nd fixing | fixed part 3 can change the length which protrudes toward the 2nd steel sheet pile 120 from the 2nd fixing | fixed part 3 freely. 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 freely changed, and the contact portion of the second fixing portion 3 The length by which 10 protrudes from the second fixing portion 3 toward the second steel sheet pile 120 can be changed. However, the length by which both of the pair of contact portions 10 and 11 of the first fixing portion 2 protrude from the first fixing portion 2 toward the first steel sheet pile 110 can be freely changed. The abutting portions 10 and 11 may be freely changeable in the length of protrusion from the second fixed portion 3 toward the second steel sheet pile 120.

  The contact portion 10, which can change the length protruding from the first fixing portion 2 toward the first steel sheet pile 110, contacts the surface 114 of the first steel sheet pile 110 via the spherical seat 12. Further, the abutting portion 10 of which the length that protrudes 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 by the spherical seat 12 Fluctuates, and a large area of the tip of the abutting portion 10 abuts on 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 1st fixing | fixed part 2 fixed, and the 2nd fixing | fixed part 3 fixed to the surface 124 and the back surface 125 of the 2nd steel sheet pile 120 so that the end surface 123 of the 2nd steel sheet pile 120 may be straddled from the one end side of the boundary line 130. And the angle of the second joint part 121 with respect to the first joint part 111 having the boundary line 130 as the rotation axis while restricting the movement of the second joint part 121 with respect to the first joint part 111 in the direction parallel to the boundary line 130 I will tolerate fluctuations In addition, since the holding portion 4a that holds the first fixing portion 2 and the second fixing portion 3 is provided, due to variations in construction accuracy of the connection between the first joint portion 111 and the second joint portion 121 that are connected to each other. Correspondingly, the first steel sheet pile 110 and the second steel sheet pile 120 can be connected so as to be integrated.

  In addition, according to the present embodiment, the holding portion 4 a is provided on the other side of the first fixing portion 2 and the second fixing portion 3 from either one of the first fixing portion 2 and the second fixing portion 3. Projecting from the other end of either the first fixing part 2 or the second fixing part 3 to the opposite side to the one side of the first fixing part 2 or the second fixing part 3 And the convex portion 7 and the concave portion 8 are fitted to each other, thereby restricting the movement of the second joint portion 121 relative to the first joint portion 111 in the direction parallel to the boundary line 130, In order to hold | maintain the 1st fixing | fixed part 2 and the 2nd fixing | fixed part 3 so that the fluctuation | variation of the angle of the 2nd coupling part 121 with respect to the 1st coupling part 111 which makes the boundary line 130 a rotating shaft may be accept | permitted, The structure can be simplified.

  Further, according to the present embodiment, the holding portion 4 a is inserted into the pin hole portion 9 and the pin hole portion 9 that penetrates the convex portion 7 and the concave portion 8 that are fitted to each other in a direction parallel to the boundary line 130. 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 pin 5, for example, at the construction site, the protrusions 7 are fitted to each other. It becomes easy to prepare the first fixing part 2 and the second fixing part 3 having the recess 8 without excess or deficiency.

  Moreover, according to this embodiment, the 1st fixing | fixed part 2 has a pair of contact parts 10 and 11 contact | abutted to each of the surface 114 and the back surface 115 of the 1st steel sheet pile 110, and a pair of contact part 10 , 11 can freely change the length protruding 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 can be changed. Since the abutment portion 10 capable of changing the thickness 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 surface 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 contact surfaces facing each other are different from each other. Easy to handle even when bonding strength may not be obtained .

  Moreover, according to this embodiment, the 2nd fixing | fixed part 3 has a pair of contact parts 10 and 11 contact | abutted to each of the surface 124 and the back surface 125 of the 2nd steel sheet pile 120, and a pair of contact part 10 , 11 can freely change the length protruding 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 can be changed. Since the abutment portion 10 capable of changing the thickness abuts on either the front surface 124 or the rear 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. When the surface 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 contact surfaces facing each other are different from each other, and the desired bonding force It is easy to deal with the case where there is a case where cannot be obtained.

  Hereinafter, a second embodiment of the present invention will be described. As shown in FIG. 5, the holding portion 4 b of the steel sheet pile connector 1 b according to the present embodiment includes 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. Have a convex portion 7 and a concave portion 8. In the example of FIG. 5, the 1st fixing | fixed part 2 has the convex part 7 on both the surface 114 and the back surface 115 of the 1st steel sheet pile 110, and the 2nd fixing | fixed part 3 is the surface 124 of the 2nd steel sheet pile 120, and Concave portions 8 are provided on both sides of the back surface 125.

  However, the 1st fixing | fixed part 2 has the recessed part 8 on both the surface 114 and the back surface 115 of the 1st steel sheet pile 110, and the 2nd fixing | fixed part 3 is both the surface 124 and the back surface 125 of the 2nd steel sheet pile 120. You may have the convex part 7 in the side. Moreover, the 1st fixing | fixed part 2 has the convex part 7 in any one side of the surface 114 of the 1st steel sheet pile 110, and the back surface 115 so that the convex part 7 and the recessed part 8 may mutually fit, and the surface 114 And the concave portion 8 on the other side of the back surface 115, the second fixing portion 3 has the convex portion 7 on either the front surface 124 and the rear surface 125 of the second steel sheet pile 120, and the front surface 124 and You may have the recessed part 8 in the other side of the back surface 125. FIG.

  The holding portion 4b has a boundary between 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 rear surface 115 of the first steel sheet pile 110 and the front surface 124 and the rear surface 125 of the second steel sheet pile 120. It has a pin hole portion 9 penetrating in a direction parallel to the line 130 and a pin 5 inserted into the pin hole portion 9, and the first fixing portion 2 and the second fixing portion 3 are not separated from each other by the pin 5. To hold.

  As shown in FIG. 5, the holding portion 4 b 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. Moreover, as above-mentioned about the said 1st Embodiment, the pin 5 is not essential and the holding | maintenance part 4b of the connector 1b for steel sheet piles is the surface 114 of the 1st steel sheet pile 110, the back surface 115, and the 2nd steel sheet pile 120. It is not necessary to provide the pin 5 on either side of the front surface 124 and the back surface 125.

  According to the present embodiment, the holding portion 4b has the convex portion 7 and the concave portion 8 on both sides 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. Compared with the case where 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 are provided with the convex portion 7 and the concave portion 8 only on one side, Even if it is the recessed part 8, the intensity | strength of the convex part 7 and the recessed part 8 with respect to the force which moves the 2nd joint part 121 with respect to the 1st joint part 111 in the direction parallel to the boundary line 130, and the rotation which cross | intersects the boundary line 130 The strength of the convex part 7 and the concave part 8 against the force twisting the second joint part 121 with respect to the first joint part 111 around the axis can be improved. Moreover, compared with the case where it has the convex part 7 and the recessed part 8 only in the one side of the surface 114 and the back surface 115 of the 1st steel sheet pile 110, and the surface 124 and the back surface 125 of the 2nd steel sheet pile 120, it is the same intensity | strength. However, the convex part 7 and the recessed part 8 can be made small.

  Moreover, according to this embodiment, the holding | maintenance part 4b was mutually fitted by the at least one side of the surface 114 and the back surface 115 of the 1st steel sheet pile 110, and the surface 124 and the back surface 125 of the 2nd 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. In order to hold the two fixing parts 3 so as not to be separated from each other, for example, at the construction site, the first fixing part 2 having the convex parts 7 fitted to each other and the second fixing part 3 having the concave parts 8 without excess or deficiency It is easy to prepare.

  Hereinafter, a third embodiment of the present invention will be described. As shown in FIG. 6, in this embodiment, the holding portion 4 c of the steel sheet pile connector 1 c has the concave portion 8 on the first fixing portion 2 side, and the convex portion 7 on the second fixing portion 3 side. 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 on each other. By moving, the first fixing portion 2 and the second fixing portion 3 are held so as to allow a change 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. The outer peripheral surface 13 and the inner peripheral surface 14 are provided with a plurality of grooves that slide while being fitted to each other along the vertical direction of the boundary line.

  As shown in FIGS. 6 and 7, the holding portion 4 c has a pin hole portion 9 that penetrates the outer peripheral surface 13 and the inner peripheral surface 14 that slide with each other, and a pin 5 that is inserted into the pin hole portion 9. And the 1st fixing | fixed part 2 and the 2nd fixing | fixed part 3 are hold | maintained with the pin 5 so that it may not mutually isolate | separate. Specifically, the pin 5 is, for example, a bolt that is screwed into the pin hole 9 of the outer peripheral surface 13. The pin hole portion 9 penetrating the inner peripheral surface 14 has a transverse cross section at the boundary line 130 so as to allow a change 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. It is a long hole such as an ellipse or a rectangle whose longitudinal direction is an orthogonal direction. In addition, the holding | maintenance part 4c of the coupler 1c for steel sheet piles does not need to be provided with the pin 5. FIG.

  According to the present embodiment, the holding portion 4 c has the outer peripheral surface 13 parallel to the boundary line 130 in the convex portion 7 and the inner peripheral surface 14 parallel to the boundary line 130 in the concave portion 8. The first fixing portion 2 and the second fixing portion are allowed to change 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 with the peripheral surface 14. Since the portion 3 is held, the structure of the holding portion 4c can be simplified.

  Further, according to the present embodiment, the holding portion 4 c has the pin hole portion 9 that penetrates the outer peripheral surface 13 and the inner peripheral surface 14 that slide with each other, and the pin 5 that is inserted into the pin hole portion 9. In order to hold the first fixing part 2 and the second fixing part 3 so as not to be separated from each other by the pin 5, for example, at the construction site, the first fixing part 2 and the convex part 7 having the concave parts 8 to be fitted to each other. It is easy to prepare the second fixing portion having the above without excess or deficiency.

  As mentioned above, although embodiment of this invention was described, this invention is implemented in various forms, without being limited to the said embodiment.

  DESCRIPTION OF SYMBOLS 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 ... Concave part, 9 ... pin hole part, 10, 11 ... abutting part, 12 ... spherical seat, 13 ... outer peripheral surface, 14 ... inner peripheral face, 110 ... first steel sheet pile, 111, 112 ... first joint part, 113 ... End surface, 114 ... front surface, 115 ... back surface, 120 ... second steel sheet pile, 121, 122 ... second joint portion, 123 ... end surface, 124 ... 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,
First 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 one end side of the boundary line between the first joint portion and the second joint portion connected to each other. 1 fixed part,
A second fixing portion fixed to the front and back surfaces 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;
The variation of the angle of the second joint part with respect to the first joint part with the boundary line as a rotation axis while restricting the movement of the second joint part with respect to the first joint part in the direction parallel to the boundary line A holding part that holds the first fixing part and the second fixing part,
A steel sheet pile connector.   The holding portion includes a convex portion protruding from either one of the first fixing portion and the second fixing portion to the other side of the first fixing portion and the second fixing portion; A convex portion recessed from either one of the first fixed portion and the second fixed portion to the opposite side of the first fixed portion and the second fixed portion. And the recess are fitted to each other, the movement of the second joint portion relative to the first joint portion in a direction parallel to the boundary line is restricted, and the first axis having the boundary line as a rotation axis. 2. The steel sheet pile connector according to claim 1, wherein the first fixing portion and the second fixing portion are held so as to allow variation in an angle of the second joint portion with respect to the joint portion.   The holding part includes a pin hole part that penetrates the convex part and the concave part fitted to each other in a direction parallel to the boundary line, and a pin that is inserted into the pin hole part. The steel sheet pile connector according to claim 2, wherein the first fixing part and the second fixing part are held so as not to be separated from each other.   The said holding | maintenance part is a connection tool for steel sheet piles of Claim 2 which has the said convex part and the said recessed part in both the surface and the back surface side of a said 1st steel sheet pile and a said 2nd steel sheet pile.   The holding portion penetrates the convex portion and the concave portion that are fitted to each other on at least one side of the front and back surfaces of the first steel sheet pile and the second steel sheet pile in a direction parallel to the boundary line. The pin hole part to be carried out and a pin inserted into the pin hole part, and the first fixing part and the second fixing part are held by the pin so as not to be separated from each other. Steel sheet pile connector.   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 relative to each other. Accordingly, the first fixing portion and the second fixing portion are held so as to allow a change in the angle of the second joint portion with respect to the first joint portion having the boundary line as a rotation axis. 2. A connector for steel sheet piles according to 2.   The holding portion includes 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, and the first fixing portion and the The steel sheet pile connector according to claim 6, wherein the second fixing portion is held so as not to be separated from each other. The first fixing portion has a pair of contact portions that contact the front surface and the back surface of the first steel sheet pile,
At least one of the pair of contact portions can freely change a length protruding from the first fixing portion toward the first steel sheet pile, and from the first fixing portion toward the first steel sheet pile. The steel sheet pile according to any one of claims 1 to 7, wherein the abutment portion, the length of which is freely projectable, abuts on either the front surface or the back surface of the first steel sheet pile via a spherical seat. Connecting tool. 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,
At least one of the pair of contact portions can freely change a length protruding from the second fixing portion toward the second steel sheet pile, and 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, the length of which can be freely changed, abuts on either the front surface or the back surface of the second steel sheet pile via a spherical seat. Connecting tool.

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