Soft soil area grating type soil retaining wall fast-assembly combined supporting structure and construction method

Abstract

The invention discloses a soft soil area grating type soil retaining wall fast-assembly combined supporting structure and a construction method, and belongs to the field of soft soil area retaining wall supporting, the soft soil area grating type soil retaining wall fast-assembly combined supporting structure comprises a fixing plate, the lower end of the fixing plate is fixedly connected with a wall bottom, one side of the wall bottom is provided with a first mounting surface, and the other side of the wall bottom is provided with a second mounting surface; and a mounting ring is arranged on one side of the exterior of the first mounting surface. The problems that in the combining process of an existing grating retaining wall structure, every two adjacent gravity type retaining walls are prone to loosening, and the cemented soil supporting capacity of a soft soil area is affected are solved, and connection of every two adjacent wall bottoms can be achieved through connection of the side face connecting rings and the clamping grooves of the mounting rings; and during connection, the mounting ring can rotate outside the movable cavity in the side connecting ring, rapid combined connection can be achieved through rotation, and the connection requirements of different angles are met.

Description

Technical Field

[0001] The invention belongs to the field of retaining wall support in soft soil areas, and specifically relates to a grid-type earth retaining wall quick-install combined support structure and a construction method in soft soil areas. Background Art

[0002] The grid-type cement-soil retaining wall support structure in soft soil areas is a civil engineering structure commonly used in soft soil areas. It is mainly used for lateral support in foundation pit excavation or underground projects. 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 shape, that is, the wall contains multiple interconnected grid units, thus forming an overall stable support structure.

[0003] A Chinese patent with publication number CN212926107U discloses a gravity retaining wall structure containing geogrids, including a gravity retaining wall, anchor rods, geogrids, drainage ditches and a compacted clay soil sealed surface layer. The gravity retaining wall has a wall surface, a wall back, a wall bottom, a wall toe, a wall heel and a wall top, and a geogrid is arranged behind the wall of the gravity retaining wall.

[0004] In the process of assembling the grid retaining wall structure of the above patent, there is no connecting assembly structure between two adjacent gravity retaining walls, which makes it easy for the two adjacent gravity retaining walls to become loose, and with continued use, the distance between the two adjacent gravity retaining walls will gradually increase, affecting the cement soil supporting capacity in soft soil areas. Other existing technologies also lack records of problems related to the rapid assembly of cement soil retaining walls. Summary of the invention

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

[0006] In order to solve the above technical problems, the inventors have obtained the technical solution of the present invention through practice and summary. The present invention discloses a quick-installation combined support structure of a grid-type earth retaining wall in a soft soil area, including a fixing plate, the lower end of the fixing plate is fixedly connected to the wall bottom, one side of the wall bottom is provided with a first mounting surface, the other side of the wall bottom is provided with a second mounting surface, one side of the outside of the first mounting surface is provided with a mounting ring, one side of the outside of the second mounting surface is provided with a side connecting ring, the inside of the side connecting ring is provided with a movable cavity, the upper end of the side connecting ring is welded with a top connecting ring, and the mounting ring and the top connecting ring are fixed by bolts passing through.

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

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

[0009] Preferably, two transverse support grids are arranged laterally and longitudinally on the outside of the fixing plate toward the soft soil area, and a longitudinal support grid is arranged between the two transverse support grids.

[0010] Preferably, the installation orientation of the longitudinal support grid is perpendicular to the installation orientation of the transverse support grid.

[0011] Preferably, a retaining wall is arranged between the upper end of the wall bottom and one side of the outside of the fixed plate, two anti-sliding blocks are arranged transversely on one side of the fixed plate facing the retaining wall, and the outside of the anti-sliding blocks is connected to the internal slot of the retaining wall.

[0012] Preferably, the length of the mounting ring is smaller than the length of the connecting disk.

[0013] Preferably, the fixing plate is provided with a first installation cavity at both upper and lower ends, a first limiting strip for slot connection is provided at one end of the transverse support grille, a second installation cavity is provided between the two first installation cavities, and a protruding second limiting strip is provided at one end of the longitudinal support grille facing the second installation cavity. The enveloping of the first installation cavity and the second installation cavity by the retaining wall can facilitate the subsequent disassembly of the transverse support grille and the longitudinal support grille.

[0014] The present invention also discloses a grid-type soil retaining wall quick-install combined support structure and a construction method in a soft soil area, comprising the following steps:

[0015] S1: After the wall bottom is embedded in the soil, the wall bottom drives the protruding fixing plate at the upper end to be vertically erected on the front end of the soft soil;

[0016] S2: The lateral support grille passes through the first installation cavity, and the movement position of the lateral support grille is limited by the first limiting strip;

[0017] S3: The longitudinal support grille passes through the second installation cavity, and the movement position of the longitudinal support grille is limited by the second limiting bar;

[0018] S4: Bolts are passed through the first limiting strip and the second limiting strip in sequence and then embedded into the fixing plate to complete the fixing;

[0019] S5: The retaining wall moves toward one side of the fixing plate, so that the anti-sliding block slides into the inside of the retaining wall, and the bolts penetrate the retaining wall and the anti-sliding block in sequence to complete the fixing of the retaining wall, so that the retaining wall wraps the first installation cavity and the second installation cavity;

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

[0021] S7: After the bolts penetrate the top connecting ring and the mounting ring in sequence, the bottom connecting ring rotates outside the bolts and fits the mounting ring, and then the connecting angle of the slot 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 mounting surface and the second mounting surface of the wall bottom of the present invention are fixed to the two sides of the wall bottom by bolts, and the connecting plate drives the mounting ring and the side connecting ring to be fixed. When two adjacent wall bottoms are combined, the side connecting ring will be stuck on the outside of the mounting ring to achieve the slot connection. According to different installation angle requirements, the mounting ring can be rotated in the movable cavity in the side connecting ring, and the rotation will not affect the slot connection between the side connecting ring and the mounting ring. After the slot connection, the bolt passes through the top connecting ring and the mounting ring, and the bottom connecting ring is rotated on the outside of the bolt to complete the fixing of the slot connection angle. The connection angle can be adjusted and fixed to meet the connection requirements of different angles. The slot connection between the mounting ring and the side connecting ring can also improve the rapid assembly efficiency of the cement soil retaining wall.

[0024] The horizontal support grids and the longitudinal support grids in different directions can limit the shaking in different directions, improve the stability of the wall bottom and the fixed plate installed in the soft ground, improve the restriction on the soil, and prevent the soil from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a stereoscopic diagram of the overall external structure of the present invention;

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

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

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

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

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

[0032] Figure 7 Schematic diagram of embodiment 2 of the present invention

[0033] In the figure: 1. retaining wall; 2. wall bottom; 3. horizontal support grille; 4. longitudinal support grille; 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-sliding 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. tension rod. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] The application principle of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] See also Figure 1-6 A grid-type soil retaining wall quick-installation composite support structure in a soft soil area includes a fixing plate 19, the lower end of which is fixedly connected to a wall bottom 2, a first mounting surface 5 is provided on one side of the wall bottom 2, and a second mounting surface 6 is provided on the other side of the wall bottom 2. Figure 1 and Figure 2 As shown, in the actual installation process, a mounting ring 7 is provided on one side of the outside of the first mounting surface 5, and a side connecting ring 8 is provided on one side of the outside of the second mounting surface 6. The side connecting ring 8 and the mounting ring 7 are respectively installed to the surfaces of the first mounting surface 5 and the second mounting surface 6 by bolts. A connecting frame 10 is welded to one side of the side connecting ring 8 and the outside of the mounting 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 view of the blocking angle requirement of cement soil in soft soil areas, the outside of the mounting ring 7 is connected to the internal card slot of the side connecting ring 8. When the card slot is connected, the card slot connection angle between the mounting ring 7 and the side connecting ring 8 can be adjusted by rotation.

[0038] In this embodiment, if Figure 5As shown, a movable cavity 17 is provided inside the side connection ring 8, and the movable cavity 17 can rotate outside the mounting ring 7 to cope with different slot connection angles;

[0039] In this embodiment, the length of the mounting ring 7 is smaller than the length of the connecting plate 11, and a top connecting ring 9 is welded to the upper end of the side connecting ring 8. Figure 5 As shown, during the process of the side connecting ring 8 and the mounting ring 7 being connected by the card slot, the top connecting ring 9 will fit on the upper end of the mounting ring 7, and the mounting ring 7 and the top connecting ring 9 are fixed by bolts, and the lower end of the mounting ring 7 is provided with a rotating and fixed bottom connecting ring 18, and the inside of the bottom connecting ring 18 is matched with the external thread of the bolt, and the bottom connecting ring 18 can fit the mounting ring 7 when it is rotated to the outside of the bolt and limit the rotation of the mounting ring 7 and the card slot connection, so that the stability of the connection between the two adjacent fixing plates 19 and the wall bottom 2 is ensured;

[0040] In this embodiment, two transverse support grids 3 are arranged on the outside of the fixing plate 19 in the transverse and longitudinal directions toward the soft soil area, and a longitudinal support grid 4 is arranged between the two transverse support grids 3. Figure 3 , Figure 4 and Figure 6 As shown, the upper and lower ends of the interior of the fixing plate 19 are both provided with a first installation cavity 12, and one end of the transverse support grille 3 is provided with a first limiting bar 15 for slot connection, and the stability of the installation of the transverse support grille 3 can be limited by the first limiting bar 15, and the deepest installation depth of the transverse support grille 3 can be limited by the protruding first limiting bar 15. The protruding first limiting bar 15 also facilitates the penetration of the bolts, and the transverse support grille 3 can be fixed after the bolts penetrate the first limiting bar 15 and the fixing plate 19 in sequence;

[0041] In this embodiment, if Figure 3 , Figure 4 and Figure 6 As shown, a second installation cavity 14 is provided between the two first installation cavities 12, and a protruding second limiting strip 16 is provided at one end of the longitudinal support grille 4 facing the second installation cavity 14, and the second limiting strip 16 is welded and fixed to the longitudinal support grille 4. After the longitudinal support grille 4 passes through the second installation cavity 14, the maximum penetration depth of the longitudinal support grille 4 is limited by the protruding second limiting strip 16, and the longitudinal support grille 4 can be easily fixed after the second limiting strip 16 and the fixing plate 19 are penetrated in sequence by bolts. The installation direction of the longitudinal support grille 4 is perpendicular to the installation direction of the transverse support grille 3, and the transverse support grilles 3 and the longitudinal support grilles 4 in different directions can limit the shaking in different directions, thereby improving the stability of the wall bottom 2 and the fixing plate 19 installed in the soft soil, improving the restriction on the soil, avoiding the loosening of the soil, and realizing the cement soil retaining wall;

[0042] In this embodiment, if Figure 2 and Figure 3 As shown, a retaining wall 1 for filling a first installation cavity 12 and a second installation cavity 14 is provided at the upper end of the wall bottom 2 and one side of the outside of the fixing plate 19, and two anti-sliding blocks 13 are transversely provided on a 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 installation cavity 12 and the second installation cavity 14 by the retaining wall 1 can facilitate 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 and have evenly distributed openings, which saves more materials; in some embodiments, the transverse support grid 3 and the longitudinal support grid 4 are regular hexagons or regular pentagons and have evenly distributed openings. According to the height of the retaining wall, the transverse support grid 3 and the longitudinal support grid 4 can be arranged in multiple layers horizontally and multiple rows vertically.

[0044] In order to further better explain the embodiments of the present invention, a construction method of a grid-type earth retaining wall quick-installation combined support structure in a soft soil area is also provided, comprising the following steps:

[0045] Step 1: When using the device to block and support cement soil in soft soil areas, the wall bottom 2 is embedded into the soil. After being embedded into the soil, the wall bottom 2 will drive the fixing plate 19 protruding from the upper end 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 installation cavity 12, and the movement position of the transverse support grid 3 will be limited by the first limiting bar 15;

[0047] Step 3: The longitudinal support grid 4 passes through the second installation cavity 14, and the movement position of the longitudinal support grid 4 is limited by the second limiting bar 16;

[0048] Step 4: Bolts are passed through the first limiting strip 15 and the second limiting strip 16 in sequence and 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, and the bolts penetrate 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;

[0050] Step 6: When two adjacent first mounting surfaces 5 are combined and 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 slots are connected, the mounting ring 7 rotates in the movable cavity 17 inside the side connecting ring 8 and adjusts its direction to achieve connection with different orientation requirements;

[0051] Step 7: After the bolts penetrate the top connecting ring 9 and the mounting ring 7 in sequence, the bottom connecting ring 18 rotates outside the bolts and fits the mounting ring 7, and then the slot connection angle between the side connecting ring 8 and the connecting frame 10 is fixed.

[0052] Embodiment 2, as Figure 7 As shown, the difference between Example 2 and Example 1 lies in that: a limit groove 20 is vertically opened on the top of the fixed plate 19, the opening length of the limit groove is smaller than the longest length inside the limit groove 20, and the bottom of the limit groove extending into the fixed plate 19 is arc-shaped; a pair of pull rods 21 are adapted in the limit groove 20, one end of the pull rod 21 passes through the limit groove 20 from the top of the fixed plate 19 and is movably limited in the limit groove 20; the other end of the pull rod 21 is hinged to another limit rod, and the other limit rod is suitable for limiting in the limit groove 20 of the adjacent fixed 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A grid-type soil retaining wall quick-installation combined support structure in soft soil areas, characterized by: The invention comprises a fixing plate (19), the lower end of which is fixedly connected to a wall bottom (2), a first mounting surface (5) being provided on one side of the wall bottom (2), a second mounting surface (6) being provided on the other side of the wall bottom (2), a mounting ring (7) being provided on the outer side of the first mounting surface (5), a side connecting ring (8) being provided on the outer side of the second mounting surface (6), a movable cavity (17) being provided inside the side connecting ring (8), a top connecting ring (9) being welded to the upper end of the side connecting ring (8), and the mounting ring (7) and the top connecting ring (9) being fixed by bolts penetrating therethrough; Transverse support grids (3) are arranged on the outside of the fixing plate (19) in a transverse and longitudinal direction toward the soft soil area, and longitudinal support grids (4) are arranged between the transverse support grids (3).

2. The grid-type soil retaining wall quick-installation combined support structure for soft soil areas according to claim 1 is characterized by: A rotatable and fixed bottom connecting ring (18) is provided at the lower end of the mounting ring (7), and the interior of the bottom connecting ring (18) is matched with the external thread of the bolt.

3. The grid-type soil retaining wall quick-installation combined support structure for soft soil areas according to claim 2 is characterized by: A connecting frame (10) is welded to one side of the outside of the side connecting ring (8) and the mounting ring (7), a connecting plate (11) is welded to one 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).

4. The grid-type soil retaining wall quick-installation combined support structure for soft soil areas according to claim 3 is characterized by: The installation orientation of the longitudinal support grid (4) is perpendicular to the installation orientation of the transverse support grid (3).

5. The grid-type soil retaining wall quick-installation combined support structure for soft soil areas according to claim 4 is characterized by: A retaining wall (1) is arranged at the upper end of the wall bottom (2) and on one side of the outside of the fixing plate (19); two anti-sliding blocks (13) are arranged transversely on one 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).

6. The grid-type soil retaining wall quick-installation combined support structure for soft soil areas according to claim 5, characterized in that: The length of the mounting ring (7) is smaller than the length of the connecting plate (11).

7. The grid-type soil retaining wall quick-installation combined support structure for soft soil areas according to claim 5, characterized in that: The fixing plate (19) is provided with first installation cavities (12) at both upper and lower ends, one end of the transverse support grille (3) is provided with a first limiting strip (15) for slot connection, a second installation cavity (14) is provided between the two first installation cavities (12), and one end of the longitudinal support grille (4) facing the second installation cavity (14) is provided with a protruding second limiting strip (16).

8. A grid-type soil retaining wall quick-installation combined support structure in a soft soil area and a construction method, comprising a grid-type soil retaining wall quick-installation combined support structure in a soft soil area according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: After the wall bottom (2) is embedded in the soil, the wall bottom (2) drives the fixing plate (19) protruding from the upper end to be vertically erected on the front end of the soft soil; S2: the transverse support grid (3) passes through the first installation cavity (12), and the movement position of the transverse support grid (3) is limited by the first limiting strip (15); S3: the longitudinal support grid (4) passes through the second installation cavity (14), and the movement position of the longitudinal support grid (4) is limited by the second limiting strip (16); S4: Bolts are used to pass 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; S5: the retaining wall (1) moves toward one side of the fixing plate (19), so that the anti-sliding block (13) slides into the interior of the retaining wall (1), and the bolts penetrate 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 first mounting surfaces (5) are combined and 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 slots are connected, the mounting ring (7) rotates in the movable cavity (17) inside the side connecting ring (8) and adjusts its direction to achieve connection with different orientation requirements; S7: After the bolts penetrate the top connecting ring (9) and the mounting ring (7) in sequence, the bottom connecting ring (18) rotates outside the bolts and fits the mounting ring (7), and then the slot connection angle between the side connecting ring (8) and the connecting frame (10) is fixed.

Images