A steel structure sheet pile wall and locking assembly

Abstract

The present invention provides a steel structure sheet pile wall and a locking assembly, comprising a plurality of sheet piles, a waist beam, and a locking assembly. The locking assembly comprises an insert rod, an auxiliary support member, and a lock nut, wherein a lock nut is arranged at the end of the insert rod, a receiving cavity is arranged axially along the insert rod, and a plurality of openings connected with the receiving cavity are arranged circumferentially on the outer wall of the insert rod; the auxiliary support member comprises a fixed rod, a slider, a compression spring, a guide rod, and a support plate located outside the receiving cavity, the fixed rod is fixedly connected to the guide rod, the slider is sleeved on the fixed rod and reciprocates along the fixed rod, the inner diameter of the slider through hole is smaller than the outer diameter of the guide rod, a plurality of supports are arranged circumferentially on the side wall of the slider, and each support end is rotatably connected to one end of the corresponding support plate, and each support plate passes through the corresponding opening on the outer wall of the insert rod, the compression spring is sleeved on the fixed rod, and both ends abut against the inner wall of the receiving cavity and the slider.

Description

Technical Field

[0001] The invention relates to the technical field of sheet pile walls, in particular to a steel structure sheet pile wall. Background Art

[0002] Steel sheet pile wall is a retaining structure formed by upright strip-shaped components made of steel materials such as steel sheet piles or prefabricated reinforced concrete sheet piles. It is mainly used to prevent soil collapse and withstand lateral earth pressure. Multiple sheet pile walls effectively prevent soil sliding and collapse by forming a continuous upright wall. The close connection and deep insertion between sheet pile walls help prevent the penetration of groundwater or rainwater.

[0003] At present, the sheet pile wall is composed of several sheet piles connected end to end, and locking buckles are provided on the left and right sides of the sheet piles to achieve a tight connection between two adjacent sheet piles. However, in actual applications, when the sheet pile wall is subjected to lateral earth pressure from the foundation pit or slope, it will be disengaged. The disengagement will destroy the overall continuity of the sheet pile wall, resulting in a significant decrease in its bearing capacity and stability. Under the strong lateral earth pressure, the sheet pile wall will become partially or completely unstable, which will lead to safety accidents. Summary of the invention

[0004] Therefore, the present invention provides a steel structure sheet pile wall and a locking assembly, wherein the protrusions of the plug assembly are respectively inserted into the corresponding grooves of the slot assembly to form a tight mechanical lock, which significantly improves the overall bearing capacity and stability of the sheet pile wall. When subjected to lateral soil pressure, it can effectively resist deformation and displacement, thereby ensuring the safety and stability of the foundation pit or slope.

[0005] In order to solve the above technical problems, the present invention provides a steel structure sheet pile wall locking assembly, including an insertion rod, an auxiliary support member, and a lock nut, wherein a lock nut is arranged at the end of the insertion rod, a receiving cavity is arranged axially, and a plurality of openings connected with the receiving cavity are arranged circumferentially on the outer wall of the insertion rod; the auxiliary support member includes a fixed rod, a slider, a compression spring, a guide rod, and a support plate located outside the receiving cavity, the fixed rod is fixedly connected to the guide rod, the slider is sleeved on the fixed rod and reciprocates along the fixed rod, the inner diameter of the slider through hole is smaller than the outer diameter of the guide rod, and a plurality of supports are arranged circumferentially on the side wall of the slider, and each end of the support member is rotatably connected to one end of the corresponding support plate, and each support plate passes through the corresponding opening on the outer wall of the insertion rod, the compression spring is sleeved on the fixed rod, and the two ends of the compression spring are respectively fixed on the inner wall of the receiving cavity and the slider.

[0006] Furthermore, the accommodating cavity is divided into a connected fixed groove, an accommodating groove, a sliding groove, and a through hole, wherein the fixed groove is located at the end, the end of the fixed rod is placed in the fixed groove, the inner diameter of the accommodating groove is larger than the inner diameter of the fixed groove, the compression spring is located in the accommodating groove, the inner diameter of the sliding groove is larger than the inner diameter of the accommodating groove, the slider is located in the sliding groove, the sliding groove is connected to the opening on the outer wall of the insertion rod, and the inner diameter of the through hole is smaller than the inner diameter of the sliding groove.

[0007] Furthermore, the openings on the outer wall of the insertion rod are divided into movable grooves, placement grooves, and transverse grooves, wherein the inner wall of the slide groove is provided with a circle of movable grooves along the circumferential direction, the inner wall of the slide groove is provided with a circle of transverse grooves connected with the movable grooves along the circumferential direction, and the outer wall of the insertion rod is provided with a plurality of placement grooves connected with the transverse grooves along the circumferential direction, the support plate is partially provided in the movable groove, and the other part passes through the connection between the movable groove and the transverse groove.

[0008] Furthermore, an anti-skid pad is provided on the bottom surface of the lock nut facing the front end of the insertion rod.

[0009] Furthermore, a support plate is arranged at one end of the guide rod extending out of the insertion rod, and a protective cover is arranged on the support plate.

[0010] The present invention also provides a steel structure sheet pile wall based on the above-mentioned locking assembly, comprising a plurality of sheet piles, a waist beam, and a locking assembly, wherein locking holes penetrating the side walls are provided on the sheet piles, a plurality of sheet piles are spliced ​​into a sheet pile wall, the waist beam covers the sheet pile wall, and the locking assembly is fixed through the waist beam and the locking holes.

[0011] Furthermore, the other end of the support plate in the locking assembly abuts against one side wall of the sheet pile, and the bottom surface of the lock nut abuts against the other side wall of the sheet pile.

[0012] Furthermore, a plug assembly is arranged on the side beam on one side of the sheet pile, and a corresponding slot assembly is arranged on the side beam on the other side, and the plug assemblies and slot assemblies of adjacent sheet piles are connected in a concave-convex manner.

[0013] Furthermore, the plug assembly includes a first protrusion, a second protrusion and a third protrusion, the first protrusion is arranged on a side beam on one side of the sheet pile, a first limiting groove is provided on a wall surface on one side of the first protrusion and a wall surface on the side beam on one side of the sheet pile, a second limiting groove is provided on a wall surface on the other side of the first protrusion and a wall surface on the side beam on one side of the sheet pile, the third protrusion is arranged on the end face wall surface of the first protrusion, and the second protrusion is arranged on the end face wall surface of the third protrusion.

[0014] Furthermore, the slot assembly is arranged on the side beam wall on the other side of the sheet pile, and is divided into a first groove, a second groove, and a third groove. The first groove matches the shape of the first protrusion. A first limit block is arranged between the first groove and the side beam wall on the other side of the sheet pile. The first limit block matches the shape of the first limit groove. The third groove is arranged on the first groove and matches the shape of the third protrusion. A second limit block is arranged between the third groove and the side beam wall on the other side of the sheet pile. The second limit block matches the shape of the second limit groove. The second groove is arranged on the third groove and matches the shape of the second protrusion.

[0015] Compared with the prior art, the present invention has the following advantages: (1) In the present invention, the plug assembly includes a first protrusion, a second protrusion and a third protrusion, and the slot assembly includes a first groove, a second groove and a third groove. The protrusions of the plug assembly are respectively inserted into the corresponding grooves of the slot assembly to form a tight mechanical lock, which significantly improves the overall bearing capacity and stability of the sheet pile wall. When subjected to lateral soil pressure, it can effectively resist deformation and displacement to ensure the safety and stability of the foundation pit or slope; (2) In the present invention, the close fit between the protrusions and the grooves forms an integral connection structure between the sheet piles, enhances the integrity and collaborative working ability of the sheet pile wall, and can more effectively disperse and transfer the load when subjected to external force, reducing The risk of local stress concentration and damage; (3) In the present invention, the design of the trapezoidal first protrusion and the first groove is conducive to guiding the alignment during the plug-in process, and gradually enhances the locking effect as the plug-in depth increases. The arrangement of the rectangular second protrusion and the second groove and the square third protrusion and the third groove provides a larger contact area, further enhancing the stability of the connection; (4) In the present invention, the cooperation of the first limit groove and the first limit block provides good stability and safety for the connection, while the addition of the second limit groove and the second limit block adds another layer of protection for the connection. This double insurance design makes the connection between the sheet piles more secure and can maintain a stable connection even under extreme working conditions.

[0016] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the steel sheet pile wall structure in the first direction of the present invention.

[0018] Figure 2 It is a schematic diagram of the steel sheet pile wall structure in the second direction of the present invention.

[0019] Figure 3 It is a schematic diagram of the third direction of the steel sheet pile wall structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the steel sheet pile wall structure in the fourth direction of the present invention.

[0021] Figure 5 for Figure 3 A partial enlarged view of point A in the middle.

[0022] Figure 6 for Figure 3 A partial enlarged view of point B in the middle.

[0023] Figure 7 It is a schematic diagram of the locking assembly structure of the present invention.

[0024] Figure 8It is a schematic diagram of the structure of the plug rod and the auxiliary support member of the present invention.

[0025] Fig. 9 It is a schematic diagram of the auxiliary support structure of the present invention.

[0026] Fig.10 It is a schematic diagram of the head structure of the auxiliary support member of the present invention.

[0027] Fig.11 It is a cross-sectional view of the rod insertion structure of the present invention.

[0028] In the figure: sheet pile 1, plug assembly 2, first protrusion 201, second protrusion 202, third protrusion 203, first limiting groove 204, second limiting groove 205, slot assembly 3, first groove 301, second groove 302, third groove 303, first limiting block 304, second limiting block 305, waist beam 4, locking assembly 5, insertion rod 501, auxiliary support 502, fixing rod 5021, slider 5022, compression spring 5023, support 5024, support plate 5025, guide rod 5026, accommodating chamber 503, fixing groove 5031, accommodating groove 5032, sliding groove 5033, through hole 5034, movable groove 5035, placement groove 5036, transverse groove 5037, lock nut 504, anti-slip pad 505, support plate 506, protective cover 507. DETAILED DESCRIPTION

[0029] like Figures 1 to 4 As shown, a steel structure sheet pile wall comprises a sheet pile 1, a plug assembly 2 is provided on one side of the sheet pile 1, and a slot assembly 3 is provided on the other side of the sheet pile 1. Figure 5 As shown, the plug assembly 2 includes a first protrusion 201, a second protrusion 202 and a third protrusion 203. The first protrusion 201 is arranged on a side beam of the sheet pile 1. A first limiting groove 204 is arranged on a side wall of the first protrusion 201 (a side wall perpendicular to the side beam of the sheet pile 1) and a wall surface of the side beam of the sheet pile 1. A second limiting groove 205 is arranged on a side wall of the other side of the first protrusion 201 (a side wall perpendicular to the side beam of the sheet pile 1) and a wall surface of the side beam of the sheet pile 1. The third protrusion 203 is arranged on a wall surface of an end face of the first protrusion 201, and the second protrusion 202 is arranged on a wall surface of an end face of the third protrusion 203. Figure 6 As shown, the slot assembly 3 includes a first groove 301, a second groove 302 and a third groove 303 arranged on the wall surface of the side beam on the other side of the sheet pile 1, the first protrusion 201 is movably inserted in the first groove 301, and the second protrusion 202 is movably inserted in the second groove 302.

[0030] When two sheet piles 1 are connected, the first protrusion 201 is inserted into the first groove 301, the second protrusion 202 is inserted into the second groove 302, and the third protrusion 203 is inserted into the third groove 303, forming a tight mechanical lock, which significantly improves the overall bearing capacity and stability of the sheet pile wall. When subjected to lateral soil pressure, it can effectively resist deformation and displacement, ensuring the safety and stability of the foundation pit or slope.

[0031] like Figure 5 and Figure 6 As shown, a protruding piece is divided by the first limiting groove 204 from the side wall of the first protrusion 201, and the horizontal cross section of the protruding piece is a trapezoid. The second protrusion 202 and the second groove 302 are both rectangular in shape, and the third protrusion 203 and the third groove 303 are both square in shape. There is no gap between the first protrusion 201 and the first groove 301, between the second protrusion 202 and the second groove 302, and between the third protrusion 203 and the third groove 303. The design of the trapezoidal first protrusion 201 and the first groove 301 is conducive to guiding the alignment during the plugging process, and gradually enhances the locking effect as the plugging depth increases. The arrangement of the rectangular second protrusion 202 and the second groove 302 and the square third protrusion 203 and the third groove 303 provides a larger contact area, further enhancing the stability of the connection.

[0032] like Figure 5 and Figure 6 As shown, the plug assembly 2 further includes a first stopper 304, which is formed on the side wall of the first groove 301 on the side beam wall of the other side of the sheet pile 1 and is extended to form the first stopper 304, and the first stopper 304 is movably plugged into the first stopper groove 204. The movably plugged connection between the first stopper groove 204 and the first stopper 304 provides additional constraints for the connection between the sheet piles 1. This design not only increases the strength of the connection, but also makes it more difficult for the sheet pile 1 to be disengaged or slipped when subjected to lateral soil pressure, thereby improving the overall stability and safety of the sheet pile wall.

[0033] The cooperation between the first limiting groove 204 and the first limiting block 304 provides good stability and safety for the connection, while the addition of the second limiting groove 205 and the second limiting block 305 adds another layer of protection for the connection. This double insurance design makes the connection between the sheet piles 1 more secure and can maintain a stable connection state even under extreme working conditions.

[0034] like Figure 1 and Figure 2As shown, the front of the sheet pile 1 is connected to a waist beam 4 through a locking assembly 5. The setting of the waist beam 4 can form a more stable structure between the sheet piles 1, thereby improving its anti-extrusion ability. In projects such as deep foundation pits, the heavy pressure of the soil and other loads (such as earthquake force, wind force, etc.) will cause the sheet pile 1 to bend and shear deformation, and the setting of the waist beam 4 can effectively resist these deformations and maintain the stability of the structure.

[0035] like Figure 7 and Figure 8 As shown, the locking assembly 5 includes an insert rod 501, one end of which passes through the waist beam 4 and extends to the back of the sheet pile 1, a receiving cavity 503 is provided inside the insert rod 501, an auxiliary support member 502 is provided inside the receiving cavity 503, and the output end of the auxiliary support member 502 abuts against the back of the sheet pile 1; a lock nut 504 is provided on the threaded sleeve on the outer surface of the insert rod 501, and an anti-skid pad 505 is fixedly connected to the back of the lock nut 504, and the back of the anti-skid pad 505 abuts against the front of the waist beam 4.

[0036] like Fig.11 As shown, the accommodating cavity 503 includes a fixed groove 5031, which is arranged inside the insertion rod 501, a accommodating groove 5032 is arranged on one side of the fixed groove 5031, a sliding groove 5033 is arranged on one side of the accommodating groove 5032, and a through hole 5034 is arranged on one side of the sliding groove 5033 along the length direction of the insertion rod 501; a plurality of movable grooves 5035 are arranged at equal intervals on the outer periphery of the sliding groove 5033, a placement groove 5036 is arranged on the outer side of the movable groove 5035, an inclined edge is arranged on the side of the placement groove 5036 away from the movable groove 5035, and a penetrating transverse groove 5037 is arranged on the outer side of the placement groove 5036.

[0037] like Fig. 9 and Fig.10 As shown, the auxiliary support member 502 includes a fixed rod 5021, the outer surface of which is sleeved with a compression spring 5023, one end of the fixed rod 5021 is slidably sleeved with a slider 5022, the outer periphery of the slider 5022 is circumferentially and equidistantly fixedly connected with a plurality of supports 5024, the supports 5024 are rotatably connected with a support plate 5025, the slider 5022 is fixedly connected to a side away from the fixed rod 5021 with a guide rod 5026, and a transverse groove is provided in the guide rod 5026 for the fixed rod 5021 to slide.

[0038] like Figures 7 to 11As shown, the fixing rod 5021 is fixedly inserted into the fixing groove 5031, the slider 5022 is slidably connected to the inside of the sliding groove 5033, the compression spring 5023 is located inside the accommodating groove 5032, one end of the compression spring 5023 is fixedly connected to the inner wall of the accommodating groove 5032, and the other end of the compression spring 5023 is fixedly connected to the slider 5022; the support 5024 is slidably connected to the inside of the movable groove 5035, the support plate 5025 is located inside the placement groove 5036, and the length of the placement groove 5036 is greater than the length of the support plate 5025.

[0039] like Figures 7 to 11 As shown, the guide rod 5026 is located inside the through hole 5034, and one end of the guide rod 5026 away from the slider 5022 extends to the outside of the insertion rod 501; the other end of the insertion rod 501 is fixedly sleeved with a support plate 506, and a protective cover 507 is threadedly sleeved on the support plate 506, and the end of the guide rod 5026 away from the slider 5022 is located inside the protective cover 507.

[0040] The working principle of the present invention is that when two sheet piles 1 are connected, the first protrusion 201 is inserted into the first groove 301, the second protrusion 202 is inserted into the second groove 302, and the third protrusion 203 is inserted into the third groove 303, so as to form a tight mechanical lock. When the waist beam 4 is installed on the sheet pile 1, it is ensured that the hole position of the waist beam 4 corresponds to the preset hole position of the sheet pile 1. Subsequently, by pressing the support plate 5025, the support plate 5025 is stored in the placement groove 5036 inside the insertion rod 501; one end of the insertion rod 501 is passed through the hole of the waist beam 4 and continues to extend to the back of the sheet pile 1. In this process, since the support plate 5025 has been stored, the insertion rod 501 can pass through smoothly and unimpeded, reducing obstacles and friction during installation; once the insertion rod 501 is fully inserted and positioned, the compression spring 5023 immediately exerts its rebound force, pushing the slider 5022 to slide along the fixed rod 5021, and then drives the support plate 5025 to extend out of the placement groove 5036 through the support 5024, and firmly abuts against the back of the sheet pile 1 in an inclined state; by rotating the lock nut 504, it is tightly abutted against the front of the waist beam 4, thereby completing the stable installation of the waist beam 4 between multiple sheet piles 1, and the cooperation between the lock nut 504 and the anti-slip pad 505 further increases the reliability and durability of the connection. Pushing the guide rod 5026 will cause the slider 5022 to slide on the fixed rod 5021, the compression spring 5023 will shrink, and the support plate 5025 will be stored in the placement groove 5036, so that the insertion rod 501 can be removed from the hole position of the waist beam 4 and the sheet pile 1.

Claims

1. A steel structure sheet pile wall locking assembly, characterized in that: It comprises an insertion rod (501), an auxiliary support member (502), and a lock nut (504), wherein A lock nut (504) is provided at the end of the plug rod (501). The insertion rod (501) is provided with a receiving cavity (503) along the axial direction. The outer wall of the insertion rod (501) is provided with a plurality of openings in the circumferential direction and are in communication with the accommodating cavity (503); The auxiliary support member (502) comprises a fixing rod (5021), a sliding block (5022), a compression spring (5023), a guide rod (5026) arranged in the accommodating cavity (503), and a supporting plate (5025) located outside the accommodating cavity (503). The fixing rod (5021) is fixedly connected to the guide rod (5026). The slider (5022) is sleeved on the fixed rod (5021) and reciprocates along the fixed rod (5021). The inner diameter of the through hole of the slider (5022) is smaller than the outer diameter of the guide rod (5026). A plurality of supports (5024) are arranged along the circumferential direction on the side wall of the slider (5022). The end of each support seat (5024) is rotatably connected to one end of the corresponding support plate (5025). Each support plate (5025) passes through a corresponding opening on the outer wall of the insertion rod (501). The compression spring (5023) is placed on the fixing rod (5021). Two ends of the compression spring (5023) are respectively fixed on the inner wall of the accommodating cavity (503) and the sliding block (5022); The accommodating cavity (503) is divided into a connected fixing groove (5031), an accommodating groove (5032), a sliding groove (5033), and a through hole (5034), wherein The fixing groove (5031) is located at the end, and the end of the fixing rod (5021) is placed in the fixing groove (5031). The inner diameter of the receiving groove (5032) is greater than the inner diameter of the fixing groove (5031), and the compression spring (5023) is located in the receiving groove (5032). The inner diameter of the slide groove (5033) is larger than the inner diameter of the receiving groove (5032), and the slider (5022) is located in the slide groove (5033). The slide groove (5033) is connected to the opening on the outer wall of the insertion rod (501). The inner diameter of the through hole (5034) is smaller than the inner diameter of the slide groove (5033); The openings on the outer wall of the insertion rod (501) are divided into a moving groove (5035), a placement groove (5036), and a transverse groove (5037). The inner wall of the slide groove (5033) is provided with a circle of moving grooves (5035) along the circumferential direction. A circle of transverse grooves (5037) connected to the moving groove (5035) is formed in the inner wall of the sliding groove (5033) along the circumferential direction. The outer wall of the insertion rod (501) is provided with a plurality of placement grooves (5036) in the circumferential direction and connected with the transverse groove (5037). A portion of the support plate (5025) is disposed in the movable groove (5035), and another portion is connected through the movable groove (5035) and the transverse groove (5037).

2. The locking assembly according to claim 1, characterized in that: An anti-skid pad (505) is provided on the bottom surface of the lock nut (504) facing the front end of the insertion rod (501).

3. The locking assembly according to claim 2, characterized in that: A support plate (506) is provided at one end of the guide rod (5026) extending out of the insertion rod (501), and a protective cover (507) is provided on the support plate (506).

4. A steel structure sheet pile wall based on the locking assembly according to any one of claims 1 to 3, characterized in that: It comprises a plurality of sheet piles (1), a waist beam (4), and a locking assembly (5), wherein The sheet pile (1) is provided with a locking hole penetrating through the side wall. A plurality of sheet piles (1) are spliced ​​together to form a sheet pile wall. The waist beam (4) covers the sheet pile wall. The locking assembly (5) passes through the waist beam (4) and the locking hole for fixation.

5. The sheet pile wall according to claim 4, characterized in that The other end of the support plate (5025) in the locking assembly (5) abuts against one side wall of the sheet pile (1), and the bottom surface of the lock nut (504) abuts against the other side wall of the sheet pile (1).

6. The sheet pile wall according to claim 5, characterized in that A plug assembly (2) is arranged on a side beam on one side of the sheet pile (1), and a corresponding slot assembly (3) is arranged on a side beam on the other side. The plug assemblies (2) and slot assemblies (3) of adjacent sheet piles (1) are connected in a concave-convex manner.

7. The sheet pile wall according to claim 6, characterized in that The plug assembly (2) comprises a first protrusion (201), a second protrusion (202) and a third protrusion (203). The first protrusion (201) is arranged on a side beam of one side of the sheet pile (1). A first limiting groove (204) is provided on a wall surface on one side of the first protrusion (201) and a wall surface on a side beam of the sheet pile (1). A second limiting groove (205) is provided on the other side wall surface of the first protrusion (201) and the side beam wall surface of one side of the sheet pile (1). The third protrusion (203) is arranged on the end wall of the first protrusion (201). The second protrusion (202) is arranged on the end wall of the third protrusion (203).

8. The sheet pile wall according to claim 7, characterized in that The slot assembly (3) is arranged on the wall surface of the side beam on the other side of the sheet pile (1), and is divided into a first groove (301), a second groove (302), and a third groove (303). The first groove (301) matches the shape of the first protrusion (201). A first limit block (304) is provided between the first groove (301) and the wall surface of the side beam on the other side of the sheet pile (1). The first limiting block (304) matches the shape of the first limiting groove (204). The third groove (303) is arranged on the first groove (301) and matches the shape of the third protrusion (203). A second limiting block (305) is provided between the third groove (303) and the wall surface of the side beam on the other side of the sheet pile (1). The second limiting block (305) matches the shape of the second limiting groove (205). The second groove (302) is arranged on the third groove (303) and matches the shape of the second protrusion (202).

Images