Soil anchor assembly for bank protection steel sheet pile

Abstract

The soil anchor assembly comprises an anchor rod, one end of the anchor rod is fixedly connected with a movable block, the movable block is movably connected with an installation plate through a bearing, the installation plate is fixedly connected with the surface of a bank protection steel sheet pile body, a material injection cavity is formed in the anchor rod, and a material injection opening is formed in the end, close to the movable block, of the outer side face of the anchor rod. A discharging opening is formed in the tail end of the material injection cavity, a main sliding block is fixedly connected into the discharging opening, an embedding head is fixedly connected to the surface of the main sliding block, meanwhile, buffer grooves are symmetrically formed in the outer side face of the tail end of the anchor rod, a main embedding rod is slidably connected into the buffer grooves through a push plate, a containing cavity is formed in the main embedding rod, and an auxiliary embedding rod is slidably connected into the containing cavity through a limiting block. Through the cooperation of the anchor rod, the main embedded rod and the auxiliary embedded rod, the stability of the connection between the soil anchor assembly and the soil layer can be effectively enhanced, and then the structural strength of the connection between the bank protection steel sheet pile body and the shoreside soil body can be enhanced in an auxiliary mode.

Description

Technical Field

[0001] The utility model relates to the technical field of river revetment construction, in particular to an earth anchor assembly for a revetment steel sheet pile. Background Technique

[0002] In river regulation, in order to adapt to the situation where the excavation conditions behind the bank are limited or the river estuary is relatively wide and it is not suitable for non-flow construction, the designed revetment often adopts the sheet pile type. This structural form is simple and convenient for construction, can operate with water, and has good anti-scouring and anti-sliding functions. However, when the retaining height of the revetment is relatively high, simply driving the sheet pile revetment into the soil on the bank by a ramming device is likely to cause displacement and inclination due to the action of horizontal force. In related technologies, when setting a revetment for a river with a relatively high retaining height, an anchored sheet pile revetment is usually adopted. By driving an anchor rod or an anchor pile into the soil on the side close to the bank, and connecting the sheet pile revetment and the anchor rod or the anchor pile by driving a steel tie rod into the soil, the stability of the structure is maintained jointly by the anchor rod or the anchor pile and the sheet pile revetment to avoid the displacement and inclination of the sheet pile revetment. The anchor rod in this type of anchored revetment steel sheet pile needs to be embedded in the soil on the side close to the bank. The common construction steps are to drill a hole in the soil and then put in steel bars, and inject cement slurry with a mortar pump. After a period of curing, an anchor rod is formed and can be used to bear tension. However, the fixing structure between the anchor rod composed of steel bars and cement and the soil hole is relatively single, which is not conducive to strengthening the connection strength between the revetment steel sheet pile and the bank. At the same time, the connection process between the anchor rod and the revetment steel sheet pile is not convenient enough, and after the anchor rod is formed by casting, the connection angle between the anchor rod and the revetment steel sheet pile cannot be adjusted conveniently according to actual needs. Content of the Utility Model

[0003] In order to overcome the defects existing in the prior art, the present utility model provides an earth anchor assembly for a revetment steel sheet pile to solve the problems raised in the above background technique.

[0004] To achieve the above object, an earth anchor assembly for a revetment steel sheet pile is provided, including: an anchor rod, one end of the anchor rod is fixedly connected to a movable block, and the movable block is movably connected to a mounting plate through a bearing. The mounting plate is fixedly connected to the surface of the main body of the revetment steel sheet pile. A material injection cavity is opened inside the anchor rod, a material injection port is opened at one end of the outer side of the anchor rod close to the movable block, and a discharge port is opened at the tail end of the material injection cavity. A main slider is fixedly connected inside the discharge port, an embedding head is fixedly connected to the surface of the main slider. At the same time, buffer grooves are symmetrically opened on the outer side surface of the tail end of the anchor rod, a main embedding rod is slidably connected in the buffer grooves through a push plate, a storage cavity is opened inside the main embedding rod, and a secondary fitting rod is slidably connected in the storage cavity through a limiting block.

[0005] Preferably, both the anchor rod and the injection cavity are of cylindrical structure, and one end of the injection cavity close to the movable block is communicated with the injection port. At the same time, four groups of drainage grooves are arranged at equal intervals along the circumferential direction on the outer side surface of the anchor rod. The four groups of drainage grooves are all of strip-shaped structure, and the end faces of the four groups are all of rectangular structure, and the length of the drainage grooves is equal to the length of the anchor rod.

[0006] Preferably, one end of the movable block close to the anchor rod is of square structure, and the other end of the movable block is of semi-circular structure. At the same time, a plurality of groups of secondary fitting grooves are arranged at equal intervals along the circumferential direction on the arc surface of the movable block. At the same time, a plurality of groups of primary fitting grooves are arranged at equal intervals on the surface of the mounting plate at positions corresponding to the secondary fitting grooves. Both the primary fitting grooves and the secondary fitting grooves are of rectangular structure.

[0007] Preferably, a plurality of groups of buffer grooves are arranged at equal intervals in parallel along the axial direction of the anchor rod. The buffer grooves are all of cylindrical structure, and the axial section of the buffer grooves is of convex-shaped structure. At the same time, the buffer grooves and the drainage grooves are arranged in a staggered manner. One end of the buffer groove close to the injection cavity is fixedly connected with a limiting ring, and the limiting ring is of circular ring structure.

[0008] Preferably, the main insertion rod is of cylindrical structure. One end of the main insertion rod close to the injection cavity is fixedly connected with a push plate, and the push plate is of circular structure. At the same time, the friction layer fixedly connected to the outer side surface of the push plate is of circular ring structure. The outer diameter of the friction layer is adapted to the size of the buffer groove. At the same time, the end of the main insertion rod far from the push plate is of frustum-shaped structure.

[0009] Preferably, the storage cavity opened inside the main insertion rod is of cylindrical structure, and the secondary insertion rod is adapted to the size of the storage cavity. At the same time, a limiting block is fixedly connected to the opening at one end of the storage cavity far from the push plate, and the limiting block is of square structure. At the same time, a limiting groove is correspondingly opened at the position of the secondary insertion rod relative to the limiting block. The secondary insertion rod and the limiting groove together form a U-shaped structure. At the same time, an injection port is opened on the surface of the push plate at a position corresponding to the storage cavity, and the injection port is of frustum-shaped structure.

[0010] Preferably, the insertion head fixedly connected to the end face of the anchor rod through the main slider is of hemispherical structure, and the diameter of the insertion head is equal to the diameter of the end face of the anchor rod. At the same time, the main slider is of cylindrical structure, and the main slider is fixedly connected inside the discharge port opened in the injection cavity through the fastening layer. At the same time, the fastening layer is of cylindrical structure.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: Through the cooperation of the main embedding rod and the auxiliary embedding rod, when the cement slurry is injected into the material injection cavity opened by the anchor rod, the cement slurry can sequentially push the main embedding rod and the auxiliary embedding rod into the surrounding soil, thereby enhancing the stability of the connection between the anchor rod and the soil. And through the cooperation of the main slider, the embedding head and the drainage groove, the cement slurry can cover the gap between the anchor rod and the soil, and further enhance the stability of the connection between the anchor rod and the soil, thus enhancing the structural strength of the connection between the bulkhead steel sheet pile body and the shore soil. At the same time, through the cooperation of the cement slurry, the main fitting groove and the auxiliary fitting groove, after the angle between the mounting plate and the anchor rod is adjusted, rapid pouring and fixing can be carried out, thereby improving the convenience of the connection between the anchor rod and the bulkhead steel sheet pile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model.

[0013] Figure 2 It is a top view schematic diagram of an embodiment of the utility model.

[0014] Figure 3 It is a side view structural schematic diagram of an embodiment of the utility model.

[0015] Figure 4 It is a partial structural schematic diagram of the main embedding rod and the auxiliary embedding rod of an embodiment of the utility model.

[0016] In the figure: 1, bulkhead steel sheet pile body; 2, mounting plate; 3, main fitting groove; 4, auxiliary fitting groove; 5, movable block; 6, material injection port; 7, anchor rod; 8, buffer groove; 9, main embedding rod; 10, push plate; 11, limiting block; 12, auxiliary embedding rod; 13, main slider; 14, embedding head; 15, drainage groove; 16, limiting ring; 17, friction layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Referring to Figures 1 to 4 As shown, the utility model provides an earth anchor assembly for a bulkhead steel sheet pile, including: an anchor rod 7, one end of the anchor rod 7 is fixedly connected to a movable block 5, and the movable block 5 is movably connected to a mounting plate 2 through a bearing. The mounting plate 2 is fixedly connected to the surface of the bulkhead steel sheet pile body 1. And a material injection cavity is opened inside the anchor rod 7, a material injection port 6 is opened at one end of the outer side surface of the anchor rod 7 close to the movable block 5, and a discharge port is opened at the tail end of the material injection cavity. A main slider 13 is fixedly connected inside the discharge port, an embedding head 14 is fixedly connected to the surface of the main slider 13. At the same time, buffer grooves 8 are symmetrically opened on the outer side surface of the tail end of the anchor rod 7. The main embedding rod 9 is slidably connected in the buffer groove 8 through a push plate 10, and a receiving cavity is opened inside the main embedding rod 9. The auxiliary fitting rod is slidably connected in the receiving cavity through a limiting block 11.

[0018] In this embodiment, first, a construction pit required for the main body 1 of the revetment steel sheet pile is dug on the shore. Appropriate holes are drilled in the pit wall, and then the anchor rod 7 is embedded in the holes for preliminary positioning and fixing. Cement slurry is pumped into the injection cavity opened in the anchor rod 7 through the injection port 6. In the injection cavity, the cement slurry will simultaneously push the main embedding rod 9, the auxiliary embedding rod 12, and the main slider 13. However, due to the structural setting of the embedding head 14, the resistance of the main slider 13 is greater than that of the main embedding rod 9 and the auxiliary embedding rod 12. Therefore, the main embedding rod 9 and the auxiliary embedding rod 12 will be embedded into the soil layer around the anchor rod 7, enhancing the stability of the connection between the anchor rod 7 and the shore soil. After the main embedding rod 9 and the auxiliary embedding rod 12 can no longer move, the continuously injected cement slurry can push the main slider 13 and the embedding head 14 to move, enabling the main slider 13 to disengage from the discharge port, and the cement slurry flows into the hole opened in the soil through the discharge port. At this time, the cement slurry can flow towards the opening of the hole through the drainage grooves 15 opened on the outer side surface of the anchor rod 7. During the flow of the cement slurry, the gap between the anchor rod 7 and the soil will be submerged, further enhancing the stability of the connection between the anchor rod 7 and the soil. When the worker sees the cement slurry overflowing from the hole, the injection of the cement slurry can be stopped. The main body 1 of the revetment steel sheet pile is installed in the construction pit, and the mounting plate 2 is fixedly connected to the surface of the main body 1 of the revetment steel sheet pile. At this time, quick-drying cement is poured between the mounting plate 2 and the movable block 5. The quick-drying cement will flow into the main fitting groove 3 and the auxiliary fitting groove 4, thereby realizing the fixed connection between the mounting plate 2 and the movable block 5, improving the convenience of the connection between the soil anchor assembly and the main body 1 of the revetment steel sheet pile.

[0019] As a preferred embodiment, both the anchor rod 7 and the injection cavity are of a cylindrical structure, and one end of the injection cavity close to the movable block 5 communicates with the injection port 6. At the same time, four groups of drainage grooves 15 are circumferentially and equidistantly opened on the outer side surface of the anchor rod 7. The four groups of drainage grooves 15 are all of a strip-shaped structure, and the end faces of the four groups are all of a rectangular structure, and the length of the drainage groove 15 is equal to the length of the anchor rod 7.

[0020] In this embodiment, as Figure 2 and Figure 3 , the settings of the injection cavity and the drainage grooves 15 enable the cement slurry to overflow from the inside of the hole to the outside, and then can effectively enhance the filling effect of the cement slurry on the gap between the anchor rod 7 and the soil, enhancing the stability of the anchor rod 7 in the hole.

[0021] As a preferred embodiment, one end of the movable block 5 close to the anchor rod 7 is of a square structure, and the other end of the movable block 5 is of a semi-circular structure. A plurality of groups of auxiliary fitting grooves 4 are circumferentially and equidistantly opened on the arc surface of the movable block 5. At the same time, a plurality of groups of main fitting grooves 3 are equidistantly opened on the surface of the mounting plate 2 at positions corresponding to the auxiliary fitting grooves 4. Both the main fitting groove 3 and the auxiliary fitting groove 4 are of a rectangular structure.

[0022] In this embodiment, as Figure 1 andFigure 2 The installation plate 2 and the movable block 5 are arranged such that after the anchor rod 7 is fixed inside the bank soil mass, it can still be conveniently connected to the main body 1 of the revetment steel sheet pile. At the same time, the opening of the main fitting groove 3 and the secondary fitting groove 4 facilitates the fixed connection between the installation plate 2 and the movable block 5, enhancing the stability of the main body 1 of the revetment steel sheet pile after installation.

[0023] As a preferred embodiment, a plurality of buffer grooves 8 are axially and parallelly arranged at equal intervals on the anchor rod 7. The buffer grooves 8 are of an overall cylindrical structure, and the axial section of the buffer grooves 8 is of a convex shape. At the same time, the buffer grooves 8 and the drainage grooves 15 are arranged in a staggered manner. One end of the buffer groove 8 close to the injection cavity is fixedly connected to a limit ring 16, and the limit ring 16 is of an annular structure.

[0024] In this embodiment, as shown in Figure 1 and Figure 3 , the arrangement of the buffer grooves 8 enables the main insertion rod 9 and the secondary insertion rod 12 to be hidden inside the anchor rod 7, ensuring that the anchor rod 7 can be smoothly inserted into the corresponding holes. The arrangement of the limit ring 16 can prevent the main insertion rod 9 and the push plate 10 from accidentally disengaging from the buffer groove 8, ensuring the normal use of the soil anchor assembly.

[0025] As a preferred embodiment, the main insertion rod 9 is of a cylindrical structure. One end of the main insertion rod 9 close to the injection cavity is fixedly connected to a push plate 10. The push plate 10 is of a circular structure, and the friction layer 17 fixedly connected to the outer side surface of the push plate 10 is of an annular structure. The outer diameter of the friction layer 17 is adapted to the size of the buffer groove 8. At the same time, the end of the main insertion rod 9 far from the push plate 10 is of a frustum shape.

[0026] In this embodiment, as shown in Figure 3 and Figure 4 , the arrangement of the friction layer 17 can effectively enhance the sealing performance at the connection between the push plate 10 and the buffer groove 8, and the frustum-shaped insertion end of the main insertion rod 9 can effectively reduce the difficulty of inserting the main insertion rod 9 into the soil mass.

[0027] As a preferred embodiment, the storage cavity opened inside the main insertion rod 9 is of a cylindrical structure, and the secondary insertion rod 12 is adapted to the size of the storage cavity. The opening at one end of the storage cavity far from the push plate 10 is fixedly connected to a limit block 11. The limit block 11 is of a square structure. At the same time, a limit groove is correspondingly opened at the position of the secondary insertion rod 12 relative to the limit block 11. The secondary insertion rod 12 and the limit groove together form a U-shaped structure. A filling port is opened on the surface of the push plate 10 at the position corresponding to the storage cavity, and the filling port is of a frustum shape.

[0028] In this embodiment, as shown in Figure 2 , Figure 3 and Figure 4, a friction sleeve is sleeved at the end of the secondary embedding rod 12, which can effectively enhance the frictional resistance between the secondary embedding rod 12 and the receiving cavity, and thus can prevent the secondary embedding rod 12 from accidentally detaching from the receiving cavity. At the same time, the cooperation between the limiting block 11 and the limiting groove enables the secondary embedding rod 12 and the primary embedding rod 9 to still be stably connected together when the secondary embedding rod 12 is embedded in the soil, thereby enhancing the fixing effect between the anchor rod 7 and the soil.

[0029] As a preferred embodiment, the embedding head 14 fixedly connected to the end face of the anchor rod 7 through the main slider 13 is in a hemispherical structure. The diameter of the embedding head 14 is equal to the diameter of the end face of the anchor rod 7, and the main slider 13 is in a cylindrical structure. The main slider 13 is fixedly connected in the discharge port opened in the injection cavity through the fastening layer, and the fastening layer is in a cylindrical structure.

[0030] In this embodiment, as Figure 1 and Figure 2 , the setting of the fastening layer can effectively increase the frictional resistance between the main slider 13 and the discharge port, prevent the main slider 13 and the embedding head 14 from accidentally detaching from the anchor rod 7, and ensure the integrity of the structures of all components of the soil anchor assembly. At the same time, the structural setting of the embedding head 14 can be changed accordingly according to actual needs to ensure that the cement slurry in the injection cavity can finally push the main slider 13 and the embedding head 14 to move, so that the cement slurry can be filled into the hole.

[0031] The soil anchor assembly for the revetment steel sheet pile of the present utility model can effectively enhance the stability of the connection between the soil anchor assembly and the soil layer through the cooperation of the anchor rod 7, the primary embedding rod 9 and the secondary embedding rod 12, and then can assist in enhancing the structural strength of the connection between the revetment steel sheet pile main body 1 and the shore soil. And the anchor rod 7 can be fixedly connected to the revetment steel sheet pile main body 1 at any inclination angle through the cooperation of the movable block 5 and the mounting plate 2, thereby enhancing the practicability of the soil anchor assembly.

Claims

1. A soil anchor assembly for a bank protection steel sheet pile, comprising: An anchor rod (7) is characterized in that one end of the anchor rod (7) is fixedly connected to a movable block (5), and the movable block (5) is movably connected to a mounting plate (2) through a bearing, the mounting plate (2) is fixedly connected to the surface of a bank protection steel sheet pile body (1), and an injection cavity is provided inside the anchor rod (7), an injection port (6) is provided on the outer side surface of the anchor rod (7) close to one end of the movable block (5), and a discharge port is provided at the tail end of the injection cavity, a main slider (13) is fixedly connected inside the discharge port, an embedding head (14) is fixedly connected to the surface of the main slider (13), and a buffer groove (8) is symmetrically provided on the outer side surface of the tail end of the anchor rod (7), a main embedding rod (9) is slidably connected to the buffer groove (8) through a push plate (10), and a storage cavity is provided inside the main embedding rod (9), and the auxiliary embedding rod is slidably connected to the storage cavity through a limit block (11).

2. A soil anchor assembly for bank protection steel sheet piles according to claim 1, characterized in that: The anchor rod (7) and the injection cavity are both cylindrical structures, and the injection cavity is connected to the injection port (6) at one end close to the movable block (5). At the same time, four groups of drainage grooves (15) are arranged at equal intervals around the outer side surface of the anchor rod (7) in a circumferential direction. The four groups of drainage grooves (15) are all long strip structures, and the end faces of the four groups are all rectangular structures. The length of the drainage grooves (15) is equal to the length of the anchor rod (7).

3. The soil anchor assembly for bank protection steel sheet piles according to claim 1, characterized in that: The movable block (5) has a square structure at one end close to the anchor rod (7), while the other end of the movable block (5) has a semicircular structure, and the arc surface of the movable block (5) is provided with a plurality of sets of auxiliary embedding grooves (4) at equal intervals around the circumference, and the surface of the mounting plate (2) is provided with a plurality of sets of main embedding grooves (3) at equal intervals relative to the positions of the auxiliary embedding grooves (4), and both the main embedding grooves (3) and the auxiliary embedding grooves (4) are rectangular structures.

4. The soil anchor assembly for bank protection steel sheet piles according to claim 1, characterized in that: The anchor rod (7) is provided with a plurality of buffer grooves (8) in parallel and at equal intervals along the axial direction. The buffer groove (8) is in an overall cylindrical structure, and the axial cross section of the buffer groove (8) is in a convex structure. The buffer groove (8) and the drainage groove (15) are staggeredly distributed, and one end of the buffer groove (8) close to the injection cavity is fixedly connected to a limiting ring (16), and the limiting ring (16) is in a circular ring structure.

5. The soil anchor assembly for bank protection steel sheet piles according to claim 1, characterized in that: The main embedded rod (9) has a cylindrical structure. One end of the main embedded rod (9) close to the injection cavity is fixedly connected to the push plate (10). The push plate (10) has a circular structure. The friction layer (17) fixedly connected to the outer side of the push plate (10) has a circular ring structure. The outer diameter of the friction layer (17) is compatible with the size of the buffer groove (8). At the same time, the end of the main embedded rod (9) away from the push plate (10) has a truncated cone structure.

6. The soil anchor assembly for bank protection steel sheet piles according to claim 1, characterized in that: The storage cavity provided inside the main embedded rod (9) is in a cylindrical structure, and the sizes of the secondary embedded rod (12) and the storage cavity are adapted to each other, and the storage cavity is fixedly connected to a limit block (11) at an opening at one end away from the push plate (10), and the limit block (11) is in a square structure. At the same time, a limit groove is provided on the secondary embedded rod (12) corresponding to the position of the limit block (11), and the secondary embedded rod (12) and the limit groove are combined to form a U-shaped structure, and an injection port is provided on the surface of the push plate (10) at a position relative to the storage cavity, and the injection port is in a truncated cone structure.

7. The soil anchor assembly for bank protection steel sheet piles according to claim 1, characterized in that: The embedding head (14) to which the end face of the anchor rod (7) is fixedly connected via the main slider (13) is of a hemispherical structure, the diameter of the embedding head (14) is equal to the diameter of the end face of the anchor rod (7), and the main slider (13) is of a cylindrical structure, and the main slider (13) is fixedly connected to the discharge port of the injection cavity via a fastening layer, and the fastening layer is of a cylindrical structure.

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