Plastic diaphragm wall based on dump filling cofferdam and efficient construction method of plastic diaphragm wall

Abstract

The invention discloses a plastic diaphragm wall based on a dump filling cofferdam and an efficient construction method of the plastic diaphragm wall, and relates to the field of dump filling cofferdam seepage prevention, the plastic diaphragm wall comprises the cofferdam, two symmetrical diaphragm wall guide walls are fixed to the cofferdam, a diaphragm wall groove is formed between the two diaphragm wall guide walls, a reinforcing supporting mechanism is arranged in the diaphragm wall groove, and the reinforcing supporting mechanism is fixedly connected with the cofferdam. And an auxiliary reinforcing mechanism is arranged in the diaphragm wall groove. The reinforcing and supporting mechanisms are placed in the anti-seepage wall groove, the adjacent reinforcing and supporting mechanisms are fixed together, the reinforcing and supporting mechanisms support the bottom of the anti-seepage wall groove and the inner wall of one side of the anti-seepage wall groove, and while the adjacent reinforcing and supporting mechanisms are fixed together, the auxiliary reinforcing mechanism further reinforces and fixes the reinforcing and supporting mechanisms. And then concrete is poured into the anti-seepage wall groove, so that the anti-seepage wall can be more stable after being formed in the anti-seepage wall groove, meanwhile, the side wall is supported and protected, and the anti-seepage effect can be further improved.

Description

Technical Field

[0001] The present application relates to the field of dump-fill cofferdam anti-seepage, and in particular to a plastic anti-seepage wall based on dump-fill cofferdam and an efficient construction method thereof. Background Art

[0002] The anti-seepage wall is a ground continuous wall built in loose permeable layers or earth-rock dams (weirs) to play an anti-seepage role. It has the advantages of reliable structure, good anti-seepage effect, adaptability to various geological conditions, simple construction and low cost. It is especially effective in dealing with hidden dangers of seepage deformation such as dam foundation leakage, "soil flow" and "piping" behind the dam, and has been widely used at home and abroad.

[0003] The construction process of the anti-seepage wall is to first prepare the construction drawings, materials and equipment, then build the construction platform and guide wall, then select the appropriate plastic concrete according to the geological conditions, then use hydraulic milling machines and impact drills and other equipment to excavate the slots, and then pour concrete in the excavated slots to form an anti-seepage wall.

[0004] When the anti-seepage wall is cast with concrete, the anti-seepage wall is formed directly in the slot. When the anti-seepage wall is located on the earth weir, the soil layer of the earth weir is easily squeezed and moved, which may cause cracks and displacement in the anti-seepage wall on the earth weir, resulting in the possibility of poor anti-seepage effect. Summary of the invention

[0005] The purpose of the present application is to solve the problem raised in the above-mentioned background technology that when the anti-seepage wall is located on the earth dam, the soil layer of the earth dam is easily squeezed and moved, which may cause the anti-seepage wall on the earth dam to be compressed and deviate, resulting in possible deterioration of the anti-seepage effect. The present application provides a plastic anti-seepage wall based on dump cofferdam and an efficient construction method thereof.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: A plastic anti-seepage wall based on dump-fill cofferdam comprises a cofferdam, on which two symmetrical anti-seepage wall guide walls are fixed, an anti-seepage wall groove is opened between the two anti-seepage wall guide walls, a reinforcement support mechanism is arranged in the anti-seepage wall groove, and an auxiliary reinforcement mechanism is arranged in the anti-seepage wall groove.

[0007] By adopting the above technical scheme, the reinforcement support mechanism is placed in the anti-seepage wall groove, and the adjacent reinforcement support mechanisms are fixed together. The reinforcement support mechanism supports the bottom of the anti-seepage wall groove and the inner wall on one side. While the adjacent reinforcement support structures are fixed together, the auxiliary reinforcement mechanism further reinforces and fixes the reinforcement support mechanism, and then concrete is poured into the anti-seepage wall groove. The concrete hardens into an anti-seepage wall, so that the anti-seepage wall can be more stable after being formed in the anti-seepage wall groove. At the same time, the side walls are supported and protected, which can further improve the anti-seepage effect.

[0008] Furthermore, the reinforcement support mechanism includes a plurality of support base plates arranged at the bottom of the anti-seepage wall, support side plates are fixed on the support base plates, positioning components are arranged between the support side plates and one of the anti-seepage wall guide walls, and splicing components are arranged between adjacent support side plates.

[0009] By adopting the above technical solution, the supporting bottom plate and the supporting side plates are placed in the anti-seepage wall groove, and at the same time, the positioning components restrict the supporting side plates to keep the supporting side plates vertical and position the supporting side plates, so that the supporting side plates and the supporting bottom plate can stably enter the anti-seepage wall groove, and then the adjacent supporting bottom plates and supporting side plates are placed in the anti-seepage wall groove by the same method, and then the adjacent supporting side plates are fixed together by the splicing components, thereby further improving the stability of the anti-seepage wall and further reducing the possibility of leakage.

[0010] Furthermore, the positioning assembly includes a plurality of positioning blocks fixed on the guide wall of the anti-seepage wall, the positioning blocks correspond to the supporting side plates, the supporting side plates are provided with positioning grooves, both ends of the positioning grooves are open, the positioning grooves correspond to the positioning blocks, and the positioning blocks are fixed with positioning cone blocks.

[0011] By adopting the above technical solution, the positioning block is fixed on the guide wall of the anti-seepage wall, and then when the supporting side plate is placed into the anti-seepage wall groove, the positioning block is allowed to enter the positioning slide groove under the guidance of the positioning cone block, thereby reducing the deviation of the supporting side plate when it is placed in the anti-seepage wall groove.

[0012] Furthermore, the splicing assembly includes a splicing plate arranged between adjacent supporting side plates, and adjacent supporting side plates are each provided with a splicing groove, and the splicing groove is open at one end away from the supporting bottom plate.

[0013] By adopting the above technical solution, the splicing plates are inserted into the splicing grooves opened on the adjacent supporting side panels at the same time, and the adjacent supporting side panels are fixed by using the splicing plates, thereby enhancing the connectivity of the adjacent supporting side panels, reducing the gaps between the adjacent supporting side panels, and increasing the integrity of the supporting side panels.

[0014] Furthermore, an inclined surface is provided at one end of the splicing plate close to the supporting bottom plate, and the inclined surface corresponds to the edge of the splicing groove.

[0015] By adopting the above technical solution, the splicing plate can be easily inserted into the splicing groove under the guidance of the inclined surface on the splicing plate, so that the splicing plate can be conveniently inserted into the splicing groove.

[0016] Furthermore, the auxiliary reinforcement mechanism includes a pushing block arranged on the splicing plate, the pushing block is fixedly connected to one end of the splicing plate close to the supporting base plate, two symmetrical reinforcement nails are fixed on the pushing block, reinforcement grooves corresponding to the reinforcement nails are opened on the adjacent supporting plates, and an extrusion reinforcement component is arranged on the supporting base plate.

[0017] By adopting the above technical solution, when the splicing plate is fully inserted into the splicing groove, the two reinforcement nails on the pushing block are inserted into the reinforcement groove on the adjacent supporting base plate, so that the adjacent supporting base plate is further reinforced, thereby further improving the stability of the adjacent supporting base plate and further improving the stability of the anti-seepage wall.

[0018] Furthermore, a limiting ring is fixed to one end of the support bottom plate away from the support side plate, a reinforcing inclined block is slidably connected to the limiting ring, the inclined surface of the reinforcing inclined block corresponds to the pushing block, and the end of the reinforcing inclined block away from the inclined surface is conical.

[0019] By adopting the above technical solution, the pushing block squeezes the inclined surface of the reinforcement oblique block, and then the reinforcement oblique block is inserted into the side wall of the anti-seepage wall groove under the restriction of the limiting ring, thereby further improving the stability of the supporting base plate.

[0020] An efficient construction method of a plastic anti-seepage wall based on dump-fill cofferdam, the construction method is: S1: At the location where the anti-seepage wall needs to be built on the cofferdam, first use reinforced concrete to build two symmetrical anti-seepage wall guide walls; S2: After the two cut-off wall guide walls are built, the area between the two cut-off wall guide walls is excavated using excavation equipment to excavate the required cut-off wall groove; S3: Then, a support bottom plate and a support side plate are manufactured according to the size of the anti-seepage wall groove, and then the support bottom plate and the support side plate are fixedly connected, and then corresponding positioning blocks are fixed on the anti-seepage wall guide wall; S4: Then, the supporting side plates and the supporting bottom plates are fixedly sent into the anti-seepage wall groove by using the lifting equipment, and at the same time, the positioning blocks fixed on the anti-seepage wall guide wall enter the positioning slide grooves on the supporting side plates. Under the restriction of the positioning blocks and the positioning slide grooves, the supporting side plates and the supporting bottom plates are vertically placed into the anti-seepage wall grooves, and then the adjacent supporting side plates and the supporting bottom plates are placed in the same way; S5: Then insert the splicing plate into the splicing groove on the adjacent supporting side plate, so that the splicing plate reinforces the adjacent supporting side plate, and at the same time, the splicing plate drives the pushing block, so that the reinforcement nails on the pushing block pass through the supporting bottom plate and are inserted into the bottom of the anti-seepage wall groove, and at the same time, the pushing block squeezes the reinforcement oblique block, and the reinforcement oblique block is inserted into the side wall of the anti-seepage wall groove, so as to further limit the supporting bottom plate; S6: Finally, pour concrete into the anti-seepage wall groove to complete the construction of the anti-seepage wall.

[0021] In summary, the present application includes at least one of the following beneficial effects: 1. The present application fixes the support bottom plate and the support side plate together, and then with the assistance of the lifting equipment, puts the support bottom plate and the support side plate into the anti-seepage wall groove, and fixes the positioning block on the anti-seepage wall guide wall at the same time. Then, when the support side plate is put into the anti-seepage wall groove, the positioning block is guided by the positioning cone block to enter the positioning slide groove. When the support side plate is put in, the positioning block restricts the support side plate. The same operation is performed to put the adjacent support side plates and the support bottom plate into the anti-seepage wall groove, and the splicing plates are simultaneously inserted into the splicing grooves opened on the adjacent support side plates. The adjacent support side plates are fixed by the splicing plates, and then concrete is poured in the anti-seepage wall groove to form an anti-seepage wall, thereby achieving the purpose of making the anti-seepage wall more stable after being formed in the anti-seepage wall groove, and at the same time supporting and protecting the side wall, which can further improve the anti-seepage effect.

[0022] 2. In the present application, the adjacent supporting side plates are fixed by the splicing plates, and the splicing plates drive the pushing blocks, and the pushing blocks drive the reinforcing nails to move toward the supporting bottom plates. When the splicing plates are fully inserted into the splicing grooves, the two reinforcing nails on the pushing blocks are inserted into the reinforcing grooves on the adjacent supporting bottom plates, so that the adjacent supporting bottom plates are further reinforced. At the same time, the pushing blocks press down the inclined surfaces of the reinforcing inclined blocks, and then the reinforcing inclined blocks are inserted into the side walls of the anti-seepage wall grooves under the restriction of the limiting rings, thereby completing the restriction on the supporting bottom plates, thereby achieving the purpose of further improving the stability of the adjacent supporting bottom plates and further improving the stability of the anti-seepage wall forming.

[0023] 3. In the present application, after the anti-seepage wall groove is excavated, the position of the positioning block is determined according to the width of the supporting side plate, and then the positioning block is fixed on the anti-seepage wall guide wall. Then, when the supporting side plate is placed into the anti-seepage wall groove, the positioning block is guided by the positioning cone block into the positioning slide groove. When the supporting side plate is placed in, the positioning block restricts the supporting side plate, thereby achieving the purpose of reducing the deviation of the supporting side plate when it is placed in the anti-seepage wall groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a first three-dimensional structural schematic diagram of a plastic anti-seepage wall based on dump-fill cofferdam in the present application; Figure 2 It is a schematic diagram of the first part of the structure of the plastic anti-seepage wall based on dump-fill cofferdam in this application; Figure 3 It is a schematic diagram of the second part of the structure of the plastic anti-seepage wall based on dump-fill cofferdam in this application; Figure 4 This application Figure 2 The enlarged schematic diagram at A in the middle; Figure 5 This application Figure 3 The enlarged schematic diagram of point B in the middle; Figure 6 This application Figure 2 Enlarged schematic diagram at point C in the middle.

[0025] Description of reference numerals: 1. Cofferdam; 2. Anti-seepage wall guide wall; 3. Anti-seepage wall groove; 4. Reinforcement support mechanism; 41. Support bottom plate; 42. Support side plate; 43. Positioning assembly; 431. Positioning block; 432. Positioning slide groove; 433. Positioning cone block; 44. Splicing assembly; 441. Splicing groove; 442. Splicing plate; 443. Inclined surface; 5. Auxiliary reinforcement mechanism; 51. Push block; 52. Reinforcement nail; 53. Extrusion reinforcement assembly; 531. Reinforcement oblique block; 532. Limiting ring. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 —6 Provide further details of this application.

[0027] The embodiment of the present application discloses a plastic anti-seepage wall based on dump-fill cofferdam and an efficient construction method thereof.

[0028] Reference Figure 1-6A plastic anti-seepage wall based on dumped cofferdam comprises a cofferdam 1, on which two symmetrical anti-seepage wall guide walls 2 are fixed, an anti-seepage wall groove 3 is opened between the two anti-seepage wall guide walls 2, a reinforcement support mechanism 4 is arranged in the anti-seepage wall groove 3, and an auxiliary reinforcement mechanism 5 is arranged in the anti-seepage wall groove 3. When constructing the anti-seepage wall, firstly, two symmetrical anti-seepage wall guide walls 2 are built on the cofferdam 1, and then an anti-seepage wall groove 3 is excavated between the two anti-seepage wall guide walls 2 by using excavating equipment, and then the reinforcement support mechanism 4 is placed in the anti-seepage wall groove 3, and adjacent reinforcement support mechanisms 4 are fixed together, and the reinforcement support mechanism 4 supports the bottom of the anti-seepage wall groove 3 and the inner wall of one side thereof. While adjacent reinforcement support structures are fixed together, the auxiliary reinforcement mechanism 5 further reinforces and fixes the reinforcement support mechanism 4, and then concrete is poured into the anti-seepage wall groove 3, and the concrete hardens into an anti-seepage wall, and the reinforcement support mechanism 4 supports and reinforces the anti-seepage wall. By adding the reinforcement support mechanism 4 in the anti-seepage wall groove 3 before pouring concrete into the anti-seepage wall, the reinforcement support mechanism 4 supports the bottom and side walls of the anti-seepage wall, so that the anti-seepage wall can be more stable after being formed in the anti-seepage wall groove 3, and at the same time, the side walls are supported and protected, which can further improve the anti-seepage effect.

[0029] Reference Figure 2 , Figure 3 and Figure 4 The reinforcement support mechanism 4 includes a plurality of support bottom plates 41 arranged at the bottom of the anti-seepage wall, support side plates 42 are fixed on the support bottom plates 41, a positioning component 43 is arranged between the support side plates 42 and one of the anti-seepage wall guide walls 2, and a splicing component 44 is arranged between adjacent support side plates 42.

[0030] After the anti-seepage wall groove 3 is excavated, the support bottom plate 41 and the support side plate 42 are produced according to the size of the anti-seepage wall groove 3, and then the support bottom plate 41 and the support side plate 42 are fixed together, and then with the assistance of the lifting equipment, the support bottom plate 41 and the support side plate 42 are placed in the anti-seepage wall groove 3, and at the same time, the positioning component 43 limits the support side plate 42 to keep the support side plate 42 vertical and positions the support side plate 42, so that the support side plate 42 and the support bottom plate 41 can stably enter the anti-seepage wall groove 3, and then the adjacent support bottom plates 41 and support side plates 42 are placed in the anti-seepage wall groove 3 by the same method, and then the splicing is used. The connecting assembly 44 fixes the adjacent supporting side plates 42 together. After several supporting bottom plates 41 and supporting side plates 42 are placed in the anti-seepage wall groove 3, concrete is poured reciprocatingly in the anti-seepage wall groove 3. The concrete hardens into an anti-seepage wall. At the same time, the supporting bottom plates 41 and supporting side plates 42 support the anti-seepage wall. The supporting side plates 42 further prevent water from seeping through the anti-seepage wall. By placing several supporting bottom plates 41 and supporting side plates 42 in the anti-seepage wall groove 3 and using the supporting side plates 42 and supporting bottom plates 41 to support the anti-seepage wall, the stability of the anti-seepage wall can be further improved, and the possibility of leakage can be further reduced.

[0031] Reference Figure 2 , Figure 4 The positioning assembly 43 includes a plurality of positioning blocks 431 fixed on the anti-seepage wall guide wall 2, the positioning blocks 431 correspond to the supporting side plates 42, the supporting side plates 42 are provided with positioning grooves 432, the two ends of the positioning grooves 432 are open, the positioning grooves 432 correspond to the positioning blocks 431, and the positioning blocks 431 are fixed with positioning cone blocks 433.

[0032] After the anti-seepage wall groove 3 is excavated, the position of the positioning block 431 is determined according to the width of the supporting side plate 42, and then the positioning block 431 is fixed on the anti-seepage wall guide wall 2. Then, when the supporting side plate 42 is placed into the anti-seepage wall groove 3, the positioning block 431 is allowed to enter the positioning slide groove 432 under the guidance of the positioning cone block 433. When the supporting side plate 42 is placed in, the positioning block 431 restricts the supporting side plate 42. By restricting the supporting side plate 42 by using the positioning block 431 when the supporting side plate 42 is placed in the anti-seepage wall groove 3, the deviation of the supporting side plate 42 when it is placed in the anti-seepage wall groove 3 can be reduced.

[0033] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 The splicing assembly 44 includes a splicing plate 442 arranged between adjacent supporting side plates 42. The adjacent supporting side plates 42 are each provided with a splicing groove 441, and one end of the splicing groove 441 away from the supporting bottom plate 41 is open.

[0034] After the supporting bottom plate 41 and the supporting side plates 42 are placed into the anti-seepage wall guide wall 2, the splicing plates 442 are simultaneously inserted into the splicing grooves 441 opened on the adjacent supporting side plates 42, and the adjacent supporting side plates 42 are fixed by using the splicing plates 442. By inserting the splicing plates 442 into the splicing grooves 441 on the adjacent supporting side plates 42, the connectivity of the adjacent supporting side plates 42 can be enhanced, the gaps between the adjacent supporting side plates 42 can be reduced, and the integrity of the supporting side plates 42 can be increased.

[0035] Reference Figure 3 and Figure 5 The end of the splicing plate 442 close to the supporting bottom plate 41 is provided with an inclined surface 443, and the inclined surface 443 corresponds to the edge of the splicing groove 441. When the splicing plate 442 is inserted into the splicing groove 441 on the adjacent supporting side plate 42, the splicing plate 442 is easily inserted into the splicing groove 441 under the guidance of the inclined surface 443 on the splicing plate 442. By providing two inclined surfaces 443 on the splicing plate 442, the splicing plate 442 can be easily inserted into the splicing groove 441.

[0036] Reference Figure 3 and Figure 5 The auxiliary reinforcement mechanism 5 includes a pushing block 51 arranged on the splicing plate 442, the pushing block 51 is fixedly connected to one end of the splicing plate 442 close to the supporting base plate 41, two symmetrical reinforcement nails 52 are fixed on the pushing block 51, and reinforcement grooves corresponding to the reinforcement nails 52 are opened on the adjacent supporting plates, and an extrusion reinforcement component 53 is arranged on the supporting base plate 41.

[0037] When the splicing plate 442 is inserted into the splicing groove 441 on the adjacent supporting side plate 42, the splicing plate 442 drives the pushing block 51, and the pushing block 51 drives the reinforcing nail 52 to move toward the supporting bottom plate 41. When the splicing plate 442 is fully inserted into the splicing groove 441, the two reinforcing nails 52 on the pushing block 51 are inserted into the reinforcement groove on the adjacent supporting bottom plate 41, so that the adjacent supporting bottom plate 41 is further reinforced. At the same time, the pushing block 51 presses down the extrusion reinforcement component 53, and the extrusion reinforcement component 53 extends out from the supporting bottom plate 41 and is inserted into the side wall of the anti-seepage wall groove 3, thereby further restricting the supporting bottom plate 41. When the splicing plate 442 is inserted into the two adjacent supporting side plates 42, the splicing plate 442 drives the pushing block 51, so that the reinforcing nails 52 on the pushing block 51 are inserted into the adjacent supporting bottom plate 41, thereby further improving the stability of the adjacent supporting bottom plate 41 and further improving the stability of the anti-seepage wall.

[0038] Reference Figure 3 and Figure 5A limiting ring 532 is fixed to one end of the support bottom plate 41 away from the support side plate 42, and a reinforcing inclined block 531 is slidably connected to the limiting ring 532. The inclined surface of the reinforcing inclined block 531 corresponds to the pushing block 51, and the end of the reinforcing inclined block 531 away from the inclined surface is tapered.

[0039] When the pushing block 51 drives the reinforcement nail 52 to be inserted into the reinforcement groove on the adjacent supporting base plate 41, the pushing block 51 squeezes the inclined surface of the reinforcement bevel block 531, and then allows the reinforcement bevel block 531 to be inserted into the side wall of the anti-seepage wall groove 3 under the restriction of the limiting ring 532, thereby completing the restriction of the supporting base plate 41. By allowing the pushing block 51 to press down the reinforcement bevel block 531, the reinforcement bevel block 531 is inserted into the side wall of the anti-seepage wall groove 3 under the restriction of the limiting ring 532, thereby further improving the stability of the supporting base plate 41.

[0040] An efficient construction method for a plastic anti-seepage wall based on a dump-fill cofferdam, the construction method is applicable to any of the above-mentioned plastic anti-seepage walls based on a dump-fill cofferdam, and the construction method is: S1: At the location where an anti-seepage wall needs to be built on the cofferdam 1, firstly, two symmetrical anti-seepage guide walls 2 are built using reinforced concrete; S2: After the two anti-seepage wall guide walls 2 are built, the area between the two anti-seepage wall guide walls 2 is excavated using excavation equipment to excavate the required anti-seepage wall groove 3; S3: Then, the support bottom plate 41 and the support side plate 42 are manufactured according to the size of the anti-seepage wall groove 3, and then the support bottom plate 41 and the support side plate 42 are fixedly connected, and then the corresponding positioning block 431 is fixed on the anti-seepage wall guide wall 2; S4: Then, the supporting side plate 42 and the supporting bottom plate 41 are fixedly sent into the anti-seepage wall groove 3 by using the lifting equipment, and at the same time, the positioning block 431 fixed on the anti-seepage wall guide wall 2 enters the positioning slide groove 432 on the supporting side plate 42. Under the restriction of the positioning block 431 and the positioning slide groove 432, the supporting side plate 42 and the supporting bottom plate 41 are vertically placed into the anti-seepage wall groove 3, and then the adjacent supporting side plates 42 and supporting bottom plates 41 are placed in the same way; S5: Then insert the splicing plate 442 into the splicing groove 441 on the adjacent supporting side plate 42, so that the splicing plate 442 reinforces the adjacent supporting side plate 42, and at the same time, the splicing plate 442 drives the pushing block 51, so that the reinforcing nails 52 on the pushing block 51 pass through the supporting bottom plate 41 and are inserted into the bottom of the anti-seepage wall groove 3, and at the same time, the pushing block 51 squeezes the reinforcing inclined block 531, and the reinforcing inclined block 531 is inserted into the side wall of the anti-seepage wall groove 3, so as to further limit the supporting bottom plate 41; S6: Finally, pour concrete into the anti-seepage wall groove 3 to complete the construction of the anti-seepage wall.

[0041] Working principle: When constructing the anti-seepage wall, first build two symmetrical anti-seepage wall guide walls 2 on the cofferdam 1, then use excavation equipment to dig an anti-seepage wall groove 3 between the two anti-seepage wall guide walls 2, produce a support bottom plate 41 and a support side plate 42 according to the size of the anti-seepage wall groove 3, then fix the support bottom plate 41 and the support side plate 42 together, and then, with the assistance of the lifting equipment, put the support bottom plate 41 and the support side plate 42 into the anti-seepage wall groove 3, and fix the positioning block 431 on the anti-seepage wall guide wall 2 at the same time, and then when putting the support side plate 42 into the anti-seepage wall groove 3, let the positioning block 431 enter the positioning slide groove 432 under the guidance of the positioning cone block 433, and when the support side plate 42 is put in, the positioning block 431 restricts the support side plate 42, and the same operation is performed to fix the adjacent support side plates 42 and the support bottom plate 4 1 is put into the anti-seepage wall groove 3, and the splicing plate 442 is inserted into the splicing groove 441 opened on the adjacent supporting side plate 42 at the same time. The adjacent supporting side plate 42 is fixed by the splicing plate 442, and the splicing plate 442 drives the pushing block 51, and the pushing block 51 drives the reinforcing nail 52 to move toward the supporting bottom plate 41. When the splicing plate 442 is fully inserted into the splicing groove 441, the two reinforcing nails 52 on the pushing block 51 are inserted into the reinforcing groove on the adjacent supporting bottom plate 41, so that the adjacent supporting bottom plate 41 is further reinforced. At the same time, the pushing block 51 presses down the inclined surface of the reinforcing inclined block 531, and then the reinforcing inclined block 531 is inserted into the side wall of the anti-seepage wall groove 3 under the restriction of the limit ring 532, so as to complete the restriction of the supporting bottom plate 41, and finally concrete is poured into the anti-seepage wall groove 3, and the construction of the anti-seepage wall is completed when the concrete hardens.

Claims

1. A plastic anti-seepage wall based on dump-fill cofferdam, comprising a cofferdam (1), characterized in that: Two symmetrical anti-seepage wall guide walls (2) are fixed on the cofferdam (1), an anti-seepage wall groove (3) is provided between the two anti-seepage wall guide walls (2), a reinforcement support mechanism (4) is provided in the anti-seepage wall groove (3), and an auxiliary reinforcement mechanism (5) is provided in the anti-seepage wall groove (3).

2. A plastic anti-seepage wall based on dump-fill cofferdam according to claim 1, characterized in that: The reinforcement support mechanism (4) comprises a plurality of support bottom plates (41) arranged at the bottom of the anti-seepage wall, a support side plate (42) being fixed to the support bottom plate (41), a positioning assembly (43) being arranged between the support side plate (42) and one of the anti-seepage wall guide walls (2), and a splicing assembly (44) being arranged between adjacent support side plates (42).

3. A plastic anti-seepage wall based on dump-fill cofferdam according to claim 2, characterized in that: The positioning assembly (43) comprises a plurality of positioning blocks (431) fixed on the anti-seepage wall guide wall (2), the positioning blocks (431) corresponding to the supporting side plates (42), the supporting side plates (42) being provided with positioning slide grooves (432), the two ends of the positioning slide grooves (432) being open, the positioning slide grooves (432) corresponding to the positioning blocks (431), and the positioning blocks (431) being fixed with positioning cone blocks (433).

4. A plastic anti-seepage wall based on dump-fill cofferdam according to claim 2, characterized in that: The splicing assembly (44) comprises a splicing plate (442) arranged between adjacent supporting side plates (42), and adjacent supporting side plates (42) are each provided with a splicing groove (441), and one end of the splicing groove (441) away from the supporting bottom plate (41) is open.

5. A plastic anti-seepage wall based on dump-fill cofferdam according to claim 4, characterized in that: An inclined surface (443) is provided at one end of the splicing plate (442) close to the supporting bottom plate (41), and the inclined surface (443) corresponds to the edge of the splicing groove (441).

6. The plastic anti-seepage wall based on dump-fill cofferdam according to claim 4, characterized in that: The auxiliary reinforcement mechanism (5) comprises a pushing block (51) arranged on the splicing plate (442), the pushing block (51) being fixedly connected to one end of the splicing plate (442) close to the supporting base plate (41), two symmetrical reinforcement nails (52) being fixed on the pushing block (51), reinforcement grooves corresponding to the reinforcement nails (52) being provided on adjacent supporting plates, and an extrusion reinforcement assembly (53) being provided on the supporting base plate (41).

7. A plastic anti-seepage wall based on dump-fill cofferdam according to claim 6, characterized in that: A limiting ring (532) is fixed to one end of the support bottom plate (41) away from the support side plate (42), and a reinforcing inclined block (531) is slidably connected to the limiting ring (532). The inclined surface of the reinforcing inclined block (531) corresponds to the pushing block (51), and the end of the reinforcing inclined block (531) away from the inclined surface is tapered.

8. An efficient construction method of a plastic anti-seepage wall based on dumped cofferdam, characterized in that: The construction method is applicable to any one of the plastic anti-seepage walls based on dumped cofferdams in claims 1 to 7, and the construction method is: S1: At the location where an anti-seepage wall is to be built on the cofferdam (1), firstly, two symmetrical anti-seepage guide walls (2) are built using reinforced concrete; S2: After the two anti-seepage wall guide walls (2) are built, the area between the two anti-seepage wall guide walls (2) is excavated using excavation equipment to excavate the required anti-seepage wall groove (3); S3: Then, a support bottom plate (41) and a support side plate (42) are manufactured according to the size of the anti-seepage wall groove (3), and then the support bottom plate (41) and the support side plate (42) are fixedly connected, and then corresponding positioning blocks (431) are fixed on the anti-seepage wall guide wall (2); S4: Then, the supporting side plate (42) and the supporting bottom plate (41) are fixedly sent into the anti-seepage wall groove (3) by using the lifting equipment, and at the same time, the positioning block (431) fixed on the anti-seepage wall guide wall (2) enters the positioning slide groove (432) on the supporting side plate (42). Under the restriction of the positioning block (431) and the positioning slide groove (432), the supporting side plate (42) and the supporting bottom plate (41) are vertically placed into the anti-seepage wall groove (3), and then the adjacent supporting side plates (42) and supporting bottom plates (41) are placed in the same way; S5: Then the splicing plate (442) is inserted into the splicing groove (441) on the adjacent supporting side plate (42), so that the splicing plate (442) reinforces the adjacent supporting side plate (42), and at the same time, the splicing plate (442) drives the pushing block (51), so that the reinforcing nail (52) on the pushing block (51) passes through the supporting bottom plate (41) and is inserted into the bottom of the anti-seepage wall groove (3), and at the same time, the pushing block (51) squeezes the reinforcing inclined block (531), and the reinforcing inclined block (531) is inserted into the side wall of the anti-seepage wall groove (3), so as to further limit the supporting bottom plate (41); S6: Finally, pour concrete into the anti-seepage wall groove (3) to complete the construction of the anti-seepage wall.

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