Prefabricated retaining wall structure suitable for rapid assembly and assembly method thereof

Abstract

The present invention provides a prefabricated and assembled retaining wall structure suitable for rapid assembly and an assembly method thereof, which is composed of a plurality of retaining wall units. The retaining wall unit includes a plurality of vertical wall units and a bottom plate arranged at the bottom of the lowest vertical wall unit. The bottom of the vertical wall unit is provided with a plurality of one-way plug-in joints for rapid docking, and the top of the vertical wall unit and the top of the bottom plate are both provided with a plurality of one-way plug-in sleeves corresponding to the one-way plug-in joints. Compared with the traditional prefabricated retaining wall structure, the rapid assembly retaining wall structure optimizes the structural block type and deadweight through a lightweight adaptive design, solves the problems of component transportation and on-site hoisting in complex environments, and saves construction costs. At the same time, unlike the traditional prefabricated retaining wall steel bar welding or bolt connection, the rapid assembly retaining wall structure itself adopts plug-in self-locking waterproof joints, which not only meets the waterproof performance of the structural joints, but also realizes the rapid assembly of components and reduces the connection construction process at the joints of the prefabricated components.

Description

Technical Field

[0001] The present invention relates to the field of assembled retaining walls, and in particular to a prefabricated assembled retaining wall structure suitable for rapid assembly and an assembly method thereof. Background Art

[0002] Retaining walls, as a common supporting structure, are widely used in critical construction projects such as slope protection and landslide emergency response. With the rapid development of construction technology, retaining wall construction is also moving towards prefabrication and assembly. Currently, most prefabricated retaining walls at home and abroad use reinforced concrete structures, which are mainly divided into integral or block structures. Integral prefabricated retaining wall structures generally have a large deadweight, and retaining wall construction requires large-scale transportation and lifting equipment. Not only does it require high on-site space, but it also requires the site to be leveled in advance. For block-type prefabricated retaining walls, most structures generally use reserved steel bars (plates) or bolt connections. Combined retaining walls with more blocks also require cast-in-place construction of some wet joints, which reduces the efficiency of structural connection construction. Based on the problems existing in the current construction of prefabricated retaining walls, there is an urgent need for a prefabricated retaining wall structure that has low construction site requirements and can achieve truly rapid construction. Summary of the Invention

[0003] The main purpose of the present invention is to provide a prefabricated and assembled retaining wall structure suitable for rapid assembly and its assembly method, so as to solve the problem that most structures of existing block-type prefabricated retaining walls generally use reserved steel bars (plates) or bolt connections, and combined retaining walls with more blocks also require cast-in-place construction of some wet joints, resulting in low efficiency of structural connection construction.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a prefabricated and assembled retaining wall structure suitable for rapid assembly, which is composed of several retaining wall units. The retaining wall unit includes multiple vertical wall units and a base plate arranged at the bottom of the lowest vertical wall unit. The bottom of the vertical wall unit is provided with multiple one-way plug-in connectors for quick docking, and the top of the vertical wall unit and the top of the base plate are both provided with multiple one-way plug-in sleeves corresponding to the one-way plug-in connectors.

[0005] In a preferred embodiment, the bottom of the vertical wall unit is provided with a transverse tenon, and the top of the vertical wall unit and the top of the bottom plate are both provided with transverse grooves corresponding to the transverse tenon.

[0006] In the preferred embodiment, the vertical wall unit includes a vertical wall panel and a buttress arranged on the side of the vertical wall panel. When all the buttresses are assembled together, they form a right triangle. Except for the vertical wall unit located at the top, the tops of the remaining vertical wall units are provided with one-way plug-in sleeves and transverse grooves.

[0007] In a preferred embodiment, connection structures for connecting adjacent vertical wall panels are provided on the left and right sides of the vertical wall panels.

[0008] In a preferred embodiment, the connection structure includes a longitudinal tenon provided on one side of the vertical wall board, and a longitudinal groove provided on the other side of the vertical wall board, wherein the longitudinal groove is adapted to fit the longitudinal tenon;

[0009] Compression water stop strips are provided on both sides of the longitudinal tenon.

[0010] In a preferred embodiment, the connection structure includes bite strips respectively provided on both sides of the vertical wall panels, and the bite strips on both sides are adapted to each other and are used for bite connection of adjacent vertical wall panels.

[0011] In a preferred embodiment, a flexible plate is provided between the engaging strip and the vertical wall plate, and the initial state of the flexible plate is a curved shape.

[0012] In a preferred embodiment, the one-way plug-in connector includes an insertion rod preset in the vertical wall unit and extending from the bottom thereof, and a plurality of one-way locking structures provided on the extending section of the insertion rod;

[0013] The one-way plug-in sleeve includes a docking sleeve preset on the top of the vertical wall unit or the top of the bottom plate, and a plurality of locking grooves arranged on the inner wall surface of the docking sleeve and corresponding to the one-way locking structure;

[0014] The one-way locking structure includes a telescopic cavity transversely extending through the insertion rod, a limiting groove provided on the opposite inner wall of the telescopic cavity, a telescopic tension spring provided in the telescopic cavity, a locking block provided at both ends of the telescopic tension spring and extending to both ends of the telescopic cavity, and a limiting block provided on the opposite outer wall of the locking block and slidably connected to the two limiting grooves respectively;

[0015] The end of the locking block and the bottom wall of the locking groove are both adapted slope surfaces, and when the locking block contacts the bottom wall of the locking groove downward, the locking block retracts.

[0016] In a preferred embodiment, a plurality of longitudinal slots are evenly spaced in the vertical wall panels, and vertical poles are inserted into the slots.

[0017] The method includes:

[0018] S1. Prefabricate the vertical wall units and base plates in the prefabrication plant and transport them to the construction site by transport vehicles;

[0019] S2. Use a crane to lift the base plate to the installation location and fix it in place with pins. Adjacent base plates are connected by bolts or welding.

[0020] S3. Then, use a crane to install the vertical wall units in the installation order, ensuring that all the supporting walls form a right triangle when assembled together. During installation, insert the one-way plug-in connectors into the corresponding one-way plug-in sleeves, and align the transverse tenons with the transverse grooves, and align the connecting structures of adjacent vertical wall units;

[0021] S4. When there is a front-to-back spacing difference between retaining wall structures, the spacing difference when connecting adjacent vertical wall units is adjusted by stretching the flexible plate;

[0022] S5. When the strength of the retaining wall structure does not meet the requirements, hoist the vertical poles and insert them into the corresponding slots;

[0023] S6. Finally, use the slag to backfill the retaining wall structure.

[0024] The present invention provides a prefabricated and assembled retaining wall structure suitable for rapid assembly and an assembly method thereof. Compared with the traditional prefabricated retaining wall structure, the rapid assembly retaining wall structure optimizes the structural block type and dead weight through lightweight adaptive design, solves the problems of component transportation and on-site lifting in complex environments, and saves construction costs. At the same time, unlike the traditional prefabricated retaining wall steel bar welding or bolt connection, the rapid assembly retaining wall structure itself adopts plug-in self-locking joints, which meets the waterproof performance of the structural joints while realizing the rapid assembly of components, reducing the connection construction process at the joints of the prefabricated components, and greatly improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples:

[0026] Figure 1 Schematic diagram of the retaining wall structure of the present invention;

[0027] Figure 2 This is an exploded structural diagram of the retaining wall unit of the present invention;

[0028] Figure 3 This is an exploded structural diagram of the retaining wall unit assembly of the present invention;

[0029] Figure 4 This is a structural diagram of the connection between the vertical wall panel and the bite strip of the present invention;

[0030] Figure 5 This is a structural diagram of the bite strips and bite connections of the vertical wall panels of the present invention;

[0031] Figure 6 This is a structural diagram of the connection between the vertical wall panels, flexible panels and snap bars of the present invention;

[0032] Figure 7 This invention Figure 6 Diagram of the bite strip bite connection structure of the vertical wall panel;

[0033] Figure 8 This is a structural diagram of the connection between the one-way plug-in connector and the one-way plug-in sleeve of the present invention;

[0034] Figure 9 This invention Figure 8 A magnified view of the structure in the middle;

[0035] Figure 10 This is a structural diagram of the connection between the vertical wall panels and the plug rods of the present invention;

[0036] Figure 11 This is a structural diagram of the connection between the vertical wall panel and the roller of the present invention;

[0037] Figure 12 It is a structural diagram of the drum of the present invention;

[0038] Figure 13 This is a structural diagram of the connection between the vertical wall panel and the energy absorbing panel of the present invention;

[0039] In the figure: retaining wall unit 1; vertical wall unit 11; vertical wall plate 110; supporting wall 111; slot 112; vertical rod 113; bottom plate 12; one-way plug-in joint 13; plug rod 131; one-way locking structure 132; telescopic cavity 1311; limiting groove 1312; telescopic tension spring 1313; locking block 1314; limiting block 1315; one-way plug-in sleeve 14; docking sleeve 141; locking groove 142; transverse tenon 15; transverse groove 16; longitudinal groove 1101; longitudinal tenon 1102; bite strip 1103; flexible plate 1104; roller 2; energy absorbing panel 3. DETAILED DESCRIPTION

[0040] Example 1

[0041] like Figure 1-3 As shown, a prefabricated and assembled retaining wall structure suitable for rapid assembly is composed of a plurality of retaining wall units 1. The retaining wall unit 1 is a steel structure or a reinforced concrete structure. The retaining wall unit 1 includes a plurality of vertical wall units 11 and a base plate 12 arranged at the bottom of the lowest vertical wall unit 11. In this embodiment, the number of vertical wall units 11 is preferably two. The bottom of the vertical wall unit 11 is provided with a plurality of one-way plug-in connectors 13 for rapid docking, and the top of the vertical wall unit 11 and the top of the base plate 12 are both provided with a plurality of one-way plug-in sleeves 14 corresponding to the one-way plug-in connectors 13.

[0042] When in use, the assembled retaining wall structure is assembled longitudinally by multiple retaining wall units 1, and the assembly effect is achieved between multiple vertical wall units 11 and the base plate 12 by quick plug-in of one-way plug-in connectors 13 and one-way plug-in sleeves 14.

[0043] In the preferred embodiment, a transverse tenon 15 is provided at the bottom of the vertical wall unit 11, and a transverse groove 16 corresponding to the transverse tenon 15 is provided at the top of the vertical wall unit 11 and the top of the base plate 12. The transverse tenon 15 and the transverse groove 16 are both integrally formed structures. The cooperation between the transverse tenon 15 and the transverse groove 16 facilitates rapid positioning and connection, while improving the shear bearing capacity of the joint connection.

[0044] In the preferred embodiment, the vertical wall unit 11 includes a vertical wall panel 110 and a buttress 111 arranged on the side of the vertical wall panel 110. When all the buttresses 111 are assembled together, they form a right-angled triangle, and the bottom of the right-angled triangle is spliced ​​with the bottom plate 12. Except for the vertical wall unit 11 located at the top, the tops of the remaining vertical wall units 11 are provided with a one-way plug-in sleeve 14 and a transverse groove 16. The buttress 111 in the form of a right triangle can play the role of diagonal bracing and diagonal pulling, thereby improving the overall stability, wherein the buttress 111 is located at the center line of one side of the vertical wall unit 11.

[0045] In a preferred embodiment, connection structures for connecting adjacent vertical wall panels 110 are provided on the left and right sides of the vertical wall panels 110 .

[0046] In this embodiment, the connection structure includes a longitudinal tenon 1102 provided on one side of the vertical wall panel 110, and a longitudinal groove 1101 provided on the other side of the vertical wall panel 110. The longitudinal groove 1101 is adapted to the longitudinal tenon 1102, so that the longitudinal tenon 1102 and the longitudinal groove 1101 can be plugged into each other, thereby improving the rapid positioning and connection between adjacent vertical wall panels 110 during assembly. At the same time, the positioning and installation between the upper and lower vertical wall panels 110 are also achieved. At the same time, the mortise and tenon structure also improves the shear bearing capacity of the structural joint.

[0047] In addition, compression water stop strips are provided on both sides of the longitudinal tenon 1102, so as to improve the waterproof effect of the joint by compressing the water stop strips.

[0048] Example 2

[0049] Further illustrate with reference to Example 1, Figure 4-5 As shown in the structure, this embodiment proposes another structure of the connection structure, which includes bite strips 1103 respectively fixed on both sides of the vertical wall board 110, and the bite strips 1103 on both sides are adapted to each other and are used for the bite connection of adjacent vertical wall boards 110.

[0050] During assembly, adjacent vertical wall panels 110 are fastened together and installed together by plugging and engaging with the engaging strips 1103 , while also having good waterproof performance.

[0051] It should be noted that when two adjacent vertical wall panels 110 are engaged and connected, the two bottom panels 12 thereof are in contact with each other.

[0052] Example 3

[0053] Further illustrate with reference to Example 2, Figure 6-7 In the structure shown, a flexible plate 1104 is provided between the engaging strip 1103 and the vertical wall plate 110. The initial state of the flexible plate 1104 is a curved shape. In this embodiment, the flexible plate 1104 is a flexible metal, specifically a flexible steel plate.

[0054] Thus, the deformation of the flexible plate 1104 can cause the adjacent vertical wall panels 110 to be misaligned front and back, so that the front and back difference of the adjacent retaining wall units 1 can be adjusted according to the installation requirements. At the same time, the flexible plate 1104 maintains the barrier effect. The flexible plate 1104 is initially bent so that it does not affect the fit between the bottom plates 12 when it is not adjusted.

[0055] Example 4

[0056] Further illustrate with reference to Example 1, Figure 8-9 In the structure shown, the one-way plug-in connector 13 includes an insertion rod 131 preset in the vertical wall unit 11 and extending from the bottom thereof, and a plurality of one-way locking structures 132 provided on the extending section of the insertion rod 131. In this embodiment, the number of the one-way locking structures 132 is three;

[0057] The one-way plug-in sleeve 14 includes a docking sleeve 141 preset on the top of the vertical wall unit 11 or the top of the bottom plate 12, and a plurality of locking grooves 142 provided on the inner wall surface of the docking sleeve 141 and corresponding to the one-way locking structure 132. The number of the locking grooves 142 is the same as the number of the one-way locking structures 132.

[0058] It should be noted that the one-way plug-in connector 13 and the one-way plug-in sleeve 14 are both preset at corresponding positions when the vertical wall unit 11 is prefabricated.

[0059] The one-way locking structure 132 includes a telescopic cavity 1311 extending transversely through the insertion rod 131, a limiting groove 1312 provided on the opposite inner wall of the telescopic cavity 1311, a telescopic tension spring 1313 provided in the telescopic cavity 1311, locking blocks 1314 provided at both ends of the telescopic tension spring 1313 and extending to both ends of the telescopic cavity 1311, and limiting blocks 1315 fixed to the opposite outer wall of the locking block 1314 and slidably connected to the two limiting grooves 1312 respectively.

[0060] When in use, the locking blocks 1314 at both ends will compress the telescopic tension spring 1313 after receiving resistance, thereby achieving the telescopic effect.

[0061] The end of the locking block 1314 and the bottom wall of the locking groove 142 are both adapted sloped surfaces. When the locking block 1314 contacts the bottom wall of the locking groove 142 downward, the locking block 1314 retracts.

[0062] Therefore, when the insertion rod 131 is inserted into the docking sleeve 141, the locking block 1314 is extended and retracted after being resisted from the bottom during the downward pressing process until it is inserted into the corresponding locking groove 142, and the insertion rod 131 is completely inserted into the docking sleeve 141.

[0063] Example 5

[0064] Further illustrate with reference to Example 1, Figure 10 In the structure shown, a plurality of longitudinal slots 112 are evenly spaced in the vertical wall panel 110. In this embodiment, there are four slots 112. Vertical poles 113 are inserted into the slots 112. In this embodiment, the vertical poles 113 are steel columns.

[0065] By setting up a split structure between the slot 112 and the vertical rod 113, the weight of the vertical wall unit 11 can be further reduced, making its lifting more convenient. At the same time, by inserting the vertical rod 113, the supporting strength can be effectively improved, and the assembled vertical wall panels 110 can be made more stable and more integrated.

[0066] Example 6

[0067] Further illustrate with reference to Examples 1-5, Figure 11-13 In the structure shown, a buffer energy-absorbing structure is further provided on the side of the vertical wall panel 110 close to the soil, so as to mitigate the impact caused by the sliding of the soil.

[0068] In this embodiment, the buffering energy absorption structure includes two types, specifically a buffering energy absorption panel 3 pasted on the soil side of the vertical wall panel 110 or a roller 2 fixed on the soil side of the vertical wall panel 110, wherein multiple rollers 2 are arrayed on the soil side of the vertical wall panel 110 respectively. The energy absorption panel 3 is suitable for soil slopes, and the roller 2 is suitable for rock slopes.

[0069] Example 7

[0070] Further illustrate with reference to Example 1, Figure 1-10 The structure shown is suitable for a method of assembling a prefabricated retaining wall structure for rapid assembly, the method comprising:

[0071] S1. Prefabricate the vertical wall unit 11 and the bottom plate 12 in the prefabrication plant and transport them to the construction site by transport vehicles;

[0072] S2. Use a crane to lift the base plate 12 to the installation position and fix it in the installation position with pins. Adjacent base plates 12 can be connected by bolts or welding;

[0073] S3. Then, use a crane to install the vertical wall units 11 in the installation order, ensuring that all the supporting walls 111 form a right triangle when assembled together. During installation, insert the one-way plug-in connectors 13 into the corresponding one-way plug-in sleeves 14, and align the transverse tenons 15 with the transverse grooves 16, and align the connecting structures of adjacent vertical wall units 11;

[0074] S4. When there is a front-to-back spacing difference between the retaining wall structures, the spacing difference when adjacent vertical wall units 11 are connected is adjusted by stretching the flexible plate 1104;

[0075] S5. When the strength of the retaining wall structure does not meet the requirements, hoist the vertical rods 113 and insert them into the corresponding slots 112;

[0076] S6. Finally, use the slag to backfill the retaining wall structure.

[0077] It should be noted that, in this embodiment, holes are provided on the bottom plate 12 for the pins to pass through.

[0078] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. Prefabricated retaining wall structure suitable for rapid assembly, characterized by: The retaining wall unit (1) is composed of a plurality of retaining wall units (1), wherein the retaining wall unit (1) comprises a plurality of vertical wall units (11) and a bottom plate (12) arranged at the bottom of the lowest vertical wall unit (11); a plurality of one-way plug-in connectors (13) for quick docking are arranged at the bottom of the vertical wall unit (11); and a plurality of one-way plug-in sleeves (14) corresponding to the one-way plug-in connectors (13) are arranged at the top of each vertical wall unit (11) and the top of the bottom plate (12); The one-way plug-in joint (13) comprises an insertion rod (131) preset in the vertical wall unit (11) and extending from the bottom thereof, and a plurality of one-way locking structures (132) provided on the extending section of the insertion rod (131); The one-way plug-in sleeve (14) comprises a docking sleeve (141) preset on the top of the vertical wall unit (11) or the top of the bottom plate (12), and a plurality of locking grooves (142) arranged on the inner wall surface of the docking sleeve (141) and corresponding to the one-way locking structure (132); The one-way locking structure (132) comprises a telescopic cavity (1311) extending transversely through the insertion rod (131), a limiting groove (1312) provided on an inner wall surface opposite to the telescopic cavity (1311), a telescopic tension spring (1313) provided in the telescopic cavity (1311), locking blocks (1314) provided at both ends of the telescopic tension spring (1313) and extending to both ends of the telescopic cavity (1311), and limiting blocks (1315) provided on an outer wall surface opposite to the locking block (1314) and slidably connected to the two limiting grooves (1312) respectively. The end of the locking block (1314) and the bottom wall of the locking groove (142) are both adapted sloped surfaces, and when the locking block (1314) contacts the bottom wall of the locking groove (142) downward, the locking block (1314) retracts.

2. The prefabricated retaining wall structure suitable for rapid assembly according to claim 1 is characterized by: The bottom of the vertical wall unit (11) is provided with a transverse tenon (15), and the top of the vertical wall unit (11) and the top of the bottom plate (12) are both provided with a transverse groove (16) corresponding to the transverse tenon (15).

3. The prefabricated retaining wall structure suitable for rapid assembly according to claim 2 is characterized by: The vertical wall unit (11) comprises a vertical wall plate (110) and a buttress (111) arranged on the side of the vertical wall plate (110). When all the buttresses (111) are assembled together, they form a right triangle. Except for the vertical wall unit (11) located at the top, the tops of the remaining vertical wall units (11) are provided with a one-way plug-in sleeve (14) and a transverse groove (16).

4. The prefabricated retaining wall structure suitable for rapid assembly according to claim 3 is characterized by: The left and right sides of the vertical wall panels (110) are provided with connection structures for connecting adjacent vertical wall panels (110).

5. The prefabricated retaining wall structure suitable for rapid assembly according to claim 4 is characterized by: The connection structure comprises a longitudinal tenon (1102) provided on one side of the vertical wall plate (110), and a longitudinal groove (1101) provided on the other side of the vertical wall plate (110), wherein the longitudinal groove (1101) is adapted to the longitudinal tenon (1102); Compression waterstop strips are provided on both sides of the longitudinal tenon (1102).

6. The prefabricated retaining wall structure suitable for rapid assembly according to claim 4 is characterized by: The connection structure comprises bite strips (1103) respectively arranged on both sides of the vertical wall panels (110), and the bite strips (1103) on both sides are adapted to each other and are used for bite connection of adjacent vertical wall panels (110).

7. The prefabricated retaining wall structure suitable for rapid assembly according to claim 6 is characterized by: A flexible plate (1104) is provided between the engaging strip (1103) and the vertical wall plate (110), and the initial state of the flexible plate (1104) is a curved shape.

8. The prefabricated retaining wall structure suitable for rapid assembly according to claim 7 is characterized by: The vertical wall plate (110) is provided with a plurality of slots (112) running longitudinally at equal intervals, and vertical poles (113) are inserted into the slots (112).

9. The assembly method of a prefabricated retaining wall structure suitable for rapid assembly according to claim 7, characterized in that: The method includes: S1. Prefabricate the vertical wall unit (11) and the base plate (12) in a prefabrication plant and transport them to the construction site by a transport vehicle; S2, using a crane to lift the base plate (12) to the installation position, and fixing it at the installation position by pins, and connecting adjacent base plates (12) by bolts or welding; S3, then use a crane to install the vertical wall units (11) in the installation order, ensuring that all the supporting walls (111) form a right triangle when assembled together, insert the one-way plug-in connector (13) into the corresponding one-way plug-in sleeve (14) during installation, and make the transverse tenon (15) and the transverse groove (16) docked, and the connection structure of the adjacent vertical wall units (11) docked; S4, when there is a front-to-back spacing difference between the retaining wall structures, the spacing difference when adjacent vertical wall units (11) are connected is adjusted by stretching the flexible plate (1104); S5. When the strength of the retaining wall structure does not meet the requirements, hoist the vertical pole (113) and insert it into the corresponding slot (112); S6. Finally, use the slag to backfill the retaining wall structure.

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