A quick-assembly combined support structure and construction method for a grid-type retaining wall in soft soil areas

Abstract

This invention discloses a quick-assembly combined support structure and construction method for a grid-type retaining wall in soft soil areas, belonging to the field of retaining wall support in soft soil areas. It includes a fixing plate, with a wall base fixedly connected to its lower end. A first mounting surface is provided on one side of the wall base, and a second mounting surface is provided on the other side. An mounting ring is provided on the outer side of the first mounting surface. This invention solves the problem that existing grid retaining wall structures are prone to loosening between adjacent gravity retaining walls during assembly, affecting the cement-soil support capacity in soft soil areas. This invention achieves the connection between adjacent wall bases through a slotted connection between the side connecting ring and the mounting ring. Simultaneously, the mounting ring can rotate outside the movable cavity within the side connecting ring, enabling rapid assembly and adapting to connection requirements at different angles.

Description

Technical Field

[0001] This invention belongs to the field of retaining wall support in soft soil areas, specifically relating to a quick-assembly combined support structure and construction method for a grid-type retaining wall in soft soil areas. Background Technology

[0002] The grid-type cement retaining wall support structure in soft soil areas is a commonly used civil engineering structure in soft soil areas. It is mainly used for lateral support in foundation pit excavation or underground engineering. It uses cement soil as the main material and forms a cement soil wall with certain strength and stability through specific processes and methods. This wall is arranged in a grid pattern, that is, the wall contains multiple interconnected grid units, thus forming an overall stable support structure.

[0003] Chinese patent CN212926107U discloses a gravity retaining wall structure containing geogrid, including a gravity retaining wall, anchor bolts, geogrid, drainage ditch and a compacted cohesive soil sealing surface layer. The gravity retaining wall has a wall face, wall back, wall bottom, wall toe, wall heel and wall top, by arranging geogrid on the back of the gravity retaining wall.

[0004] In the aforementioned patented grid retaining wall structure, the lack of a connecting assembly structure between adjacent gravity retaining walls during assembly makes them prone to loosening. Furthermore, with continued use, the distance between adjacent gravity retaining walls gradually increases, affecting the cement-soil support capacity in soft soil areas. Other existing technologies also lack documentation on the problems related to the rapid assembly of cement retaining walls. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a quick-assembly combined support structure and construction method for a grid-type retaining wall in soft soil areas to solve the problems mentioned in the background art or achieve better technical effects.

[0006] To solve the above-mentioned technical problems, the inventors, through practice and summarization, derived the technical solution of this invention. This invention discloses a quick-assembly combined support structure for a grid-type retaining wall in soft soil areas, including a fixing plate. The lower end of the fixing plate is fixedly connected to a wall base. A first mounting surface is provided on one side of the wall base, and a second mounting surface is provided on the other side of the wall base. An mounting ring is provided on one side outside the first mounting surface, and a side connecting ring is provided on one side outside the second mounting surface. The side connecting ring has a movable cavity inside, and a top connecting ring is welded to the upper end of the side connecting ring. The mounting ring and the top connecting ring are fixed together by bolts.

[0007] Preferably, the lower end of the mounting ring is provided with a rotating and fixed bottom connecting ring, and the interior of the bottom connecting ring is engaged with the external thread of the bolt.

[0008] Preferably, a connecting frame is welded to one side of the outer side of the side connecting ring and the mounting ring, and a connecting plate is welded to the side of the connecting frame facing the bottom of the wall, and the connecting plate is welded and fixed to the bottom of the wall.

[0009] Preferably, the fixing plate has two transverse support grids arranged horizontally and vertically on the outside facing the soft soil area, and a longitudinal support grid is arranged between the two transverse support grids.

[0010] Preferably, the longitudinal support grid is installed perpendicular to the transverse support grid.

[0011] Preferably, a retaining wall is provided at the upper end of the wall base and on one side of the outside of the fixing plate, and two anti-slip blocks are horizontally provided on the side of the fixing plate facing the retaining wall, and the outside of the anti-slip blocks is connected to the internal groove of the retaining wall.

[0012] Preferably, the length of the mounting ring is less than the length of the connecting disc.

[0013] Preferably, the fixing plate has a first mounting cavity at both its upper and lower ends, one end of the transverse support grid has a first limiting strip for slot connection, a second mounting cavity is provided between the two first mounting cavities, and the end of the longitudinal support grid facing the second mounting cavity has a protruding second limiting strip. Enclosing the first and second mounting cavities with a retaining wall facilitates the subsequent disassembly of the transverse and longitudinal support grids.

[0014] This invention also discloses a construction method for a quick-assembly combined support structure for a grid-type retaining wall in soft soil areas, comprising the above-mentioned quick-assembly combined support structure for a grid-type retaining wall in soft soil areas, including the following steps:

[0015] S1: After embedding the bottom of the wall into the soil, the bottom of the wall drives the upper protruding fixing plate to be vertically erected at the front end of the soft soil.

[0016] S2: The transverse support grille passes through the first mounting cavity and the movement position of the transverse support grille is restricted by the first limiting strip;

[0017] S3: The longitudinal support grille passes through the second mounting cavity, and the movement position of the longitudinal support grille is restricted by the second limiting strip;

[0018] S4: Fixing is completed by passing bolts through the first and second limiting strips in sequence and embedding them into the fixing plate;

[0019] S5: The retaining wall moves toward the fixing plate, causing the anti-slip block to slide into the interior of the retaining wall. The bolts then pass through the retaining wall and the anti-slip block in sequence to fix the retaining wall, so that the retaining wall covers the first and second installation cavities.

[0020] S6: When two adjacent first mounting surfaces are connected, one of the first mounting surfaces is embedded in the outside of the mounting ring of the other first mounting surface through a side connecting ring. After the slot connection, the mounting ring rotates and adjusts its orientation in the movable cavity inside the side connecting ring to achieve connection for different orientation requirements.

[0021] S7: After the bolt passes through the top connecting ring and the mounting ring in sequence, the bottom connecting ring rotates outside the bolt and fits into the mounting ring. Then, the groove connection angle between the side connecting ring and the connecting frame is fixed.

[0022] Compared with the prior art, the present invention can achieve the following technical effects:

[0023] The first and second mounting surfaces of the wall base of this invention are designed to meet installation requirements. Bolts are used to fix the connecting disc, the mounting ring, and the side connecting ring to both sides of the wall base. When assembling two adjacent wall bases, the side connecting ring will lock onto the outside of the mounting ring to achieve a slot connection. For different installation angle requirements, the mounting ring can rotate within the movable cavity of the side connecting ring without affecting the slot connection between the side connecting ring and the mounting ring. After the slot connection is achieved, the bolt passes through the top connecting ring and the mounting ring, and the bottom connecting ring rotates outside the bolt to fix the slot connection angle. Adjusting and fixing the connection angle adapts to different connection requirements. The slot connection between the mounting ring and the side connecting ring also improves the efficiency of rapid assembly of cement retaining walls.

[0024] The horizontal and vertical support grids with different orientations can limit swaying in different directions, improve the stability of the wall base and fixing plate installed in soft soil, enhance the restriction of soil, and prevent soil loosening. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a perspective view of the overall external structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the connection structure between the transverse support grid and the longitudinal support grid of the present invention;

[0028] Figure 3 This is a cross-sectional view of the first mounting cavity connection structure of the present invention;

[0029] Figure 4 This is an exploded view of the retaining wall connection structure of the present invention;

[0030] Figure 5 This is an exploded view of the connection structure between the side connecting ring and the mounting ring of the present invention;

[0031] Figure 6 This is a cross-sectional view of the first mounting cavity connection structure of the present invention;

[0032] Figure 7 This is a schematic diagram of Embodiment 2 of the present invention.

[0033] In the diagram: 1. Retaining wall; 2. Wall base; 3. Horizontal support grid; 4. Longitudinal support grid; 5. First mounting surface; 6. Second mounting surface; 7. Mounting ring; 8. Side connecting ring; 9. Top connecting ring; 10. Connecting frame; 11. Connecting plate; 12. First mounting cavity; 13. Anti-slip block; 14. Second mounting cavity; 15. First limiting strip; 16. Second limiting strip; 17. Movable cavity; 18. Bottom connecting ring; 19. Fixing plate; 20. Limiting groove; 21. Tie rod. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] Please see Figure 1-6 A quick-assembly combined support structure for a grid-type retaining wall in soft soil areas includes a fixing plate 19, with a wall base 2 fixedly connected to the lower end of the fixing plate 19. A first mounting surface 5 is provided on one side of the wall base 2, and a second mounting surface 6 is provided on the other side of the wall base 2. Figure 1 and Figure 2 As shown, during the actual installation process, an installation ring 7 is provided on one side of the first installation surface 5, and a side connecting ring 8 is provided on one side of the second installation surface 6. The side connecting ring 8 and the installation ring 7 are respectively installed to the surfaces of the first installation surface 5 and the second installation surface 6 by bolts. A connecting frame 10 is welded to one side of the side connecting ring 8 and the installation ring 7. A connecting plate 11 is welded to the side of the connecting frame 10 facing the wall bottom 2, and the connecting plate 11 is welded and fixed to the wall bottom 2. In order to meet the blocking angle requirements of cement soil in soft soil areas, the outer side of the installation ring 7 is connected to the inner groove of the side connecting ring 8. While the groove is connected, the groove connection angle between the installation ring 7 and the side connecting ring 8 can be adjusted by rotation.

[0038] In this embodiment, as Figure 5As shown, the side connecting ring 8 has a movable cavity 17 inside. The movable cavity 17 can rotate outside the mounting ring 7 to accommodate different slot connection angles.

[0039] In this embodiment, the length of the mounting ring 7 is less than the length of the connecting disc 11, and a top connecting ring 9 is welded to the upper end of the side connecting ring 8, such as... Figure 5 As shown, during the process of connecting the side connecting ring 8 and the mounting ring 7 in the slot, the top connecting ring 9 will fit against the upper end of the mounting ring 7. The mounting ring 7 and the top connecting ring 9 are fixed by bolts. The lower end of the mounting ring 7 is provided with a rotating and fixed bottom connecting ring 18. The inside of the bottom connecting ring 18 is engaged with the external thread of the bolt. The bottom connecting ring 18 can fit against the mounting ring 7 by rotating to the outside of the bolt and restricting the rotation of the mounting ring 7 and the slot connection, so as to make the connection between the two adjacent fixing plates 19 and the wall bottom 2 stable.

[0040] In this embodiment, two transverse support grids 3 are arranged horizontally and vertically on the outside of the fixing plate 19 facing the soft soil area, and a longitudinal support grid 4 is arranged between the two transverse support grids 3, such as... Figure 3 , Figure 4 and Figure 6 As shown, the upper and lower ends of the fixing plate 19 are provided with first mounting cavities 12, and one end of the transverse support grid 3 is provided with a first limiting strip 15 for slot connection. The first limiting strip 15 can limit the stability of the installation of the transverse support grid 3. The protruding first limiting strip 15 can limit the maximum installation depth of the transverse support grid 3. The protruding first limiting strip 15 also facilitates the penetration of bolts. After the bolts pass through the first limiting strip 15 and the fixing plate 19 in sequence, the transverse support grid 3 can be fixed.

[0041] In this embodiment, as Figure 3 , Figure 4 and Figure 6 As shown, a second mounting cavity 14 is provided between the two first mounting cavities 12. A protruding second limiting strip 16 is provided at one end of the longitudinal support grid 4 facing the second mounting cavity 14, and the second limiting strip 16 is welded and fixed to the longitudinal support grid 4. After the longitudinal support grid 4 passes through the second mounting cavity 14, the maximum penetration depth of the longitudinal support grid 4 is limited by the protruding second limiting strip 16. The longitudinal support grid 4 can be easily fixed by bolts passing through the second limiting strip 16 and the fixing plate 19 in sequence. The installation orientation of the longitudinal support grid 4 is perpendicular to the installation orientation of the transverse support grid 3. The transverse support grid 3 and the longitudinal support grid 4 with different orientations can limit the swaying in different orientations, improve the stability of the wall base 2 and the fixing plate 19 installed in soft soil, improve the restriction of the soil, avoid the soil from loosening, and realize the cement-soil retaining wall.

[0042] In this embodiment, as Figure 2 and Figure 3 As shown, a retaining wall 1 for filling the first mounting cavity 12 and the second mounting cavity 14 is provided on the upper end of the wall base 2 and one side of the outside of the fixing plate 19. Two anti-sliding blocks 13 are arranged horizontally on the side of the fixing plate 19 facing the retaining wall 1, and the outside of the anti-sliding blocks 13 is connected to the internal slot of the retaining wall 1. After the sliding slot is connected, the fixing can be completed by bolts passing through the retaining wall 1 and the fixing plate 19 in sequence. The wrapping of the first mounting cavity 12 and the second mounting cavity 14 by the retaining wall 1 facilitates the subsequent disassembly of the horizontal support grid 3 and the longitudinal support grid 4.

[0043] In some embodiments, the transverse support grid 3 and the longitudinal support grid 4 are rectangular with evenly distributed openings, thus saving materials. In other embodiments, the transverse support grid 3 and the longitudinal support grid 4 are regular hexagons or regular pentagons with evenly distributed openings. Depending on the height of the retaining wall, the transverse support grid 3 and the longitudinal support grid 4 can be configured as multiple horizontal layers and multiple vertical columns.

[0044] To further explain the embodiments of the present invention, a construction method for a quick-assembly combined support structure for a grid-type retaining wall in soft soil areas is also provided, comprising the following steps:

[0045] Step 1: When using the device to block and support the cement soil in the soft soil area, embed the bottom wall 2 into the soil. After embedding into the soil, the bottom wall 2 will drive the upper protruding fixing plate 19 to be vertically erected at the front end of the soft soil.

[0046] Step 2: After the fixing plate 19 is installed, the transverse support grid 3 will pass through the first mounting cavity 12, and the movement position of the transverse support grid 3 will be restricted by the first limiting strip 15.

[0047] Step 3: The longitudinal support grille 4 will pass through the second mounting cavity 14, and the movement position of the longitudinal support grille 4 will be restricted by the second limiting strip 16;

[0048] Step 4: The bolts are passed through the first limiting strip 15 and the second limiting strip 16 in sequence and then embedded into the fixing plate 19 to complete the fixing;

[0049] Step 5: When the retaining wall 1 moves toward the fixing plate 19, the anti-sliding block 13 slides into the interior of the retaining wall 1. The bolts pass through the retaining wall 1 and the anti-sliding block 13 in sequence to complete the fixing of the retaining wall 1, so that the retaining wall 1 covers the first mounting cavity 12 and the second mounting cavity 14.

[0050] Step 6: When two adjacent first mounting surfaces 5 are connected, one of the first mounting surfaces 5 is embedded in the outside of the mounting ring 7 of the other first mounting surface 5 through the side connecting ring 8. After the slot connection, the mounting ring 7 rotates and adjusts its orientation in the movable cavity 17 inside the side connecting ring 8 to achieve connection for different orientation requirements.

[0051] Step 7: After the bolts pass through the top connecting ring 9 and the mounting ring 7 in sequence, the bottom connecting ring 18 is rotated outside the bolts and fits against the mounting ring 7. Then, the slot connection angle between the side connecting ring 8 and the connecting bracket 10 is fixed.

[0052] Example 2, as Figure 7 As shown, the difference between Embodiment 2 and Embodiment 1 is that: a limiting groove 20 is vertically opened at the top of the fixing plate 19, the opening length of the limiting groove is less than the longest internal length of the limiting groove 20, and the bottom of the limiting groove extending into the fixing plate 19 is arc-shaped; a pair of pull rods 21 are adapted in the limiting groove 20, one end of the pull rod 21 passes through the top of the fixing plate 19 into the limiting groove 20 and is movably limited in the limiting groove 20; the other end of the pull rod 21 is hinged to another limiting rod, and the other limiting rod is adapted to be limited in the limiting groove 20 of the adjacent fixing plate 19.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-assembly combined support structure for a grid-type retaining wall in soft soil areas, characterized in that: Includes a fixing plate (19), the lower end of which is fixedly connected to a wall base (2). A first mounting surface (5) is provided on one side of the wall base (2), and a second mounting surface (6) is provided on the other side of the wall base (2). A mounting ring (7) is provided on the outer side of the first mounting surface (5), and a side connecting ring (8) is provided on the outer side of the second mounting surface (6). A movable cavity (17) is provided inside the side connecting ring (8). A top connecting ring (9) is welded to the upper end of the side connecting ring (8). The mounting ring (7) and the top connecting ring (9) are fixed together by bolts. The fixed plate (19) is provided with a transverse support grid (3) facing the soft soil area, and a longitudinal support grid (4) is provided between the transverse support grids (3). The lower end of the mounting ring (7) is provided with a rotating and fixed bottom connecting ring (18), and the interior of the bottom connecting ring (18) is engaged with the external thread of the bolt. A connecting frame (10) is welded to one side of the side connecting ring (8) and the mounting ring (7). A connecting plate (11) is welded to the side of the connecting frame (10) facing the bottom wall (2), and the connecting plate (11) is welded and fixed to the bottom wall (2). A retaining wall (1) is provided on the upper end of the wall bottom (2) and on one side of the outside of the fixing plate (19). Two anti-slip blocks (13) are provided horizontally on the side of the fixing plate (19) facing the retaining wall (1), and the outside of the anti-slip blocks (13) is connected to the internal slot of the retaining wall (1). The upper and lower ends of the fixed plate (19) are provided with first mounting cavities (12), one end of the transverse support grille (3) is provided with a first limiting strip (15) for slot connection, a second mounting cavity (14) is provided between the two first mounting cavities (12), and a protruding second limiting strip (16) is provided at the end of the longitudinal support grille (4) facing the second mounting cavity (14).

2. The quick-assembly combined support structure for a grid-type retaining wall in soft soil areas according to claim 1, characterized in that: The longitudinal support grid (4) is installed perpendicular to the transverse support grid (3).

3. The quick-assembly combined support structure for a grid-type retaining wall in soft soil areas according to claim 1, characterized in that: The length of the mounting ring (7) is less than the length of the connecting plate (11).

4. A construction method for a quick-assembly combined support structure for a grid-type retaining wall in soft soil areas, comprising the quick-assembly combined support structure for a grid-type retaining wall in soft soil areas as described in any one of claims 1-3, characterized in that: Includes the following steps: S1: After embedding the wall base (2) into the soil, the wall base (2) drives the upper protruding fixing plate (19) to be vertically erected at the front end of the soft soil. S2: The transverse support grille (3) passes through the first mounting cavity (12) and the movement position of the transverse support grille (3) is restricted by the first limiting strip (15); S3: The longitudinal support grid (4) passes through the second mounting cavity (14) and the movement position of the longitudinal support grid (4) is restricted by the second limiting strip (16); S4: The bolts are inserted into the fixing plate (19) after passing through the first limiting strip (15) and the second limiting strip (16) in sequence to complete the fixing; S5: The retaining wall (1) moves toward the fixing plate (19), so that the anti-sliding block (13) slides into the interior of the retaining wall (1). The bolts pass through the retaining wall (1) and the anti-sliding block (13) in sequence to complete the fixing of the retaining wall (1), so that the retaining wall (1) wraps the first installation cavity (12) and the second installation cavity (14). S6: When two adjacent wall bases are connected, the second mounting surface of one wall base is embedded in the outside of the mounting ring (7) of the first mounting surface (5) of the other wall base through the side connecting ring (8). After the slot connection, the mounting ring (7) rotates and adjusts its orientation in the movable cavity (17) inside the side connecting ring (8) to achieve connection for different orientation requirements. S7: After the bolt passes through the top connecting ring (9) and the mounting ring (7) in sequence, the bottom connecting ring (18) rotates outside the bolt and fits against the mounting ring (7), and then the groove connection angle between the side connecting ring (8) and the mounting ring (7) is fixed.

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