Pouring construction method for underground diaphragm wall of vertical shaft

Abstract

The invention relates to the technical field of underground diaphragm wall construction, and provides a vertical shaft underground diaphragm wall pouring construction method aiming at the problem that concrete grout is easy to flow around during traditional underground diaphragm wall pouring construction, the vertical shaft underground diaphragm wall pouring construction method comprises the following steps: S1, constructing an underground diaphragm wall guide wall structure; s2, underground diaphragm wall segment slotted holes are constructed; s3, binding and processing the steel bar net rack, and connecting an H-shaped steel joint to the side edge of the steel bar net rack; s4, the steel bar net rack is hoisted into the corresponding groove holes; s5, anti-streaming component installation construction is conducted, specifically, the lower area and the upper area of the gap between the H-shaped steel connector and the end of the groove hole are filled with bagged gravel and bagged clay correspondingly; s6, concrete grout is injected into the slotted holes to form underground diaphragm wall sections; s7, the anti-streaming component is dismantled; and S8, the step S2 to the step S7 are repeated till pouring of the remaining underground diaphragm wall sections is completed. The device has the effect of limiting the concrete from flowing around.

Description

Technical Field

[0001] The present application relates to the field of ground-connected wall construction, and in particular to a method for casting a vertical shaft underground continuous wall. Background Art

[0002] Before the excavation of the shaft foundation pit, an annular underground continuous wall (hereinafter referred to as "ground continuous wall") is required to be constructed around the foundation pit as the retaining structure of the shaft foundation pit to improve the stability of the soil around the shaft foundation pit and limit the instability or water seepage of the soil around the foundation pit during the subsequent excavation of the shaft foundation pit.

[0003] like Figure 1 The annular ground-connected wall is constructed in sections. When tying the steel mesh 1 of each section of the ground-connected wall, it is necessary to install and connect H-shaped steel joints 11 on the side of the steel mesh 1; subsequently, when the steel mesh 1 of the rear construction section of the ground-connected wall is hoisted into the slot 3, the side of the steel mesh 1 of the rear construction section of the ground-connected wall is embedded in the slot of the H-shaped steel joint 11 on the side of the steel mesh 1 of the first construction section of the ground-connected wall, and the H-shaped steel joint 11 is used to connect and limit the adjacent steel mesh 1, so as to improve the connection strength of the connection between the adjacent underground continuous wall sections.

[0004] With respect to the above-mentioned related technologies, in order to facilitate the smooth lifting of the steel mesh, a gap must inevitably be left between the H-steel joint and the slot wall. When the concrete of the ground-connected wall segment is subsequently poured, the concrete slurry will easily flow through the gap between the H-steel joint and the slot to the slot on the side of the H-steel joint away from the steel mesh, and condense on the H-steel joint. When the subsequent slot milling machine excavates the slot of the rear construction section of the ground-connected wall, the concrete condenses on the H-steel joint, making it difficult for the slot milling machine grab to remove it, which can easily lead to the existence of sloped concrete. The existence of sloped concrete will interfere with the lowering of the steel mesh of the rear construction section of the ground-connected wall, seriously affecting the construction of the ground-connected wall segment. Therefore, there is room for improvement. Summary of the invention

[0005] In order to limit the concrete from flowing around through the gap between the H-steel joint and the slot and solidifying to the side of the H-steel joint away from the steel grid, the present application provides a vertical shaft underground continuous wall casting construction method.

[0006] The present application provides a vertical shaft underground continuous wall pouring construction method, which adopts the following technical solution: A vertical shaft underground continuous wall pouring construction method comprises the following steps: S1: Guide wall construction: construct the ground-connected guide wall structure; S2: Slot construction: construct the slots of the ground-connected wall segments; S3: Steel mesh processing: tie and process the steel mesh, and connect the H-shaped steel joints on the side of the steel mesh; S4: Hanging and placing the steel mesh frame: Hang the steel mesh frame into the corresponding slot hole; S5: Installation and construction of bypass prevention components: bagged crushed stone and bagged clay are filled in the lower area and upper area of ​​the gap between the H-shaped steel joint and the end of the slot respectively; S6: Casting of ground-connected wall segments: injecting concrete slurry into the slots to form ground-connected wall segments; S7: Remove the bypass prevention components; remove the bagged clay and bagged gravel in the gap between the H-beam joint and the end of the slot hole; S8: Repeat steps S2 to S7 until the casting of the remaining diaphragm wall segments is completed.

[0007] By adopting the above technical solution, bagged gravel and bagged clay are respectively filled at the bottom and bottom of the gap between the H-shaped steel joint and the slot wall at the end of the slot, and in the subsequent pouring of the ground-connected wall concrete, the anti-circulation component formed by the two is used to limit the concrete slurry to flow around the side of the H-shaped steel joint away from the steel grid and condense on the steel grid. At the same time, clay and gravel are both bagged, which, on the one hand, limits the gravel or clay in the gap from scattering and flowing around into the steel cage; on the other hand, when the anti-circulation component is removed later, the gravel and clay can be concentrated and taken out from the gap between the H-shaped steel joint and the slot wall at the end of the slot hole, which is convenient for the removal of the anti-circulation component.

[0008] Preferably, in step S3, a sealing airbag is installed at the bottom end of the H-shaped steel joint away from the steel grid, and the sealing airbag is connected to an air pipe; In step S4, after the steel mesh frame is suspended in the slot, air is inflated into the sealing airbag through the air pipe to expand the sealing airbag and seal the gap between the bottom of the H-shaped steel joint and the bottom of the slot; In step S6, after the casting of the ground-connected wall segment is completed, the gas in the sealed air bag is released through the air pipe.

[0009] By adopting the above technical solution, the bottom groove wall of the ground-connected wall is usually uneven during the process of drilling the ground-connected wall groove by the groove milling machine. The gap between the H-shaped steel joint and the bottom groove wall of the groove hole is blocked by the expanded sealing airbag, effectively limiting the subsequent pouring of concrete slurry from flowing around the gap between the bottom of the H-shaped steel joint and the bottom groove wall of the groove hole to the side of the H-shaped steel joint away from the steel grid.

[0010] Preferably, in step S4, the steel mesh is hoisted in front of the slot, the sealing airbag is folded and stored, and temporarily fixed in the slot on the side of the H-shaped steel joint away from the steel mesh by adhesive tape.

[0011] By adopting the above technical solution, by first storing the sealing airbag in the slot of the H-shaped steel joint, the steel bar is effectively restricted, which is beneficial to reducing the friction between the sealing airbag and the wall of the slot hole when it is subsequently hoisted into the slot, thereby reducing the wear of the sealing airbag; at the same time, during the hoisting process of the steel mesh, it is beneficial to reduce the contact area between the sealing airbag and the mud in the slot hole, thereby reducing the resistance encountered during the hoisting process of the steel mesh.

[0012] Preferably, in step S4, after the steel mesh is hoisted into the slot hole, an anti-circumvention baffle is driven into the gap between the two sides of the H-shaped steel joint and the side slot wall of the slot hole.

[0013] By adopting the above technical scheme, by installing anti-bypass baffles between the two sides of the H-shaped steel joint and the side groove walls of the slot hole, the anti-bypass baffles can be used to initially block the concrete slurry, which is beneficial to improving the anti-bypass effect at the H-shaped steel joint.

[0014] Preferably, both sides of the H-shaped steel joint are provided with limiting members, and the limiting members include two limiting plates arranged opposite to each other, and the two limiting plates form limiting grooves for the anti-circumvention baffle to be embedded in; In step S4, when the anti-bypass baffle is installed, one side of the anti-bypass baffle is embedded in the corresponding limiting groove.

[0015] By adopting the above technical scheme, on the one hand, the anti-bypass baffle can be guided by the limiting groove so that the anti-bypass baffle can be accurately and smoothly driven into the slot hole; on the other hand, the anti-bypass baffle can be limited by the limiting groove so that the anti-bypass baffle can be more firmly supported in the gap between the side of the H-shaped steel joint and the side wall of the slot hole.

[0016] Preferably, in step S5, before filling the bagged gravel and the bagged clay, the bagged clay and the bagged gravel are respectively loaded into corresponding net bags.

[0017] By adopting the above technical scheme, bagged gravel and bagged clay are respectively concentratedly loaded into corresponding net bags, and the net bags are used to realize centralized positioning of bagged gravel and bagged clay. On the one hand, when bagged gravel and bagged clay are filled in the early stage, it is convenient to centrally fill bagged gravel and bagged clay, which is beneficial to reduce the number of times of filling bagged gravel and bagged clay; on the other hand, when the anti-bypass component is disassembled and assembled later, it is convenient to centrally remove bagged gravel and bagged clay.

[0018] Preferably, in step S5, after the bagged clay is filled in place, the bagged clay is compacted by a compacting tool.

[0019] By adopting the above technical solution, compacting the bagged clay with a compacting tool is beneficial to further reduce the gaps between the bagged clay and make them arranged more closely, which is beneficial to improve the density of the bagged clay, so that the anti-circumvention component can better block the gap between the H-shaped steel joint and the end of the slot hole.

[0020] Preferably, in step S1, during the casting process of the guide wall, a connecting plate is pre-buried at the top of the guide wall corresponding to the H-shaped steel joint; In step S4, after the steel mesh frame is hoisted into place, a connecting rod is welded at the top of the H-shaped steel joint, and the end of the connecting rod away from the H-shaped steel joint is welded to the connecting plate of the guide wall.

[0021] By adopting the above technical solution, temporary limiting and fixing of the H-shaped steel joint is achieved, reducing the displacement of the H-shaped steel joint during the subsequent filling of anti-circumvention components and installation of anti-circumvention baffles, which is beneficial to the filling of anti-circumvention components and the installation of anti-circumvention baffles.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1.By filling bagged gravel and bagged clay in the gap between the H-shaped steel joint and the slot wall at the end of the slot hole, the gap is blocked by the anti-circumvention component formed by the two, so as to limit the concrete slurry of the subsequent ground-connected wall pouring from flowing around the gap and condensing on the H-shaped steel joint; the gravel and clay are both in bagged form, which is convenient for filling and removing the gravel and clay, and limits the gravel and clay from flowing around into the steel grid during the ground-connected wall pouring process.

[0023] 2. By installing a sealing airbag on the side of the H-shaped steel joint away from the steel bar, after the steel mesh frame is hoisted into place, the sealing airbag is inflated through the air pipe to expand the sealing airbag, thereby sealing the gap between the H-shaped steel joint and the bottom wall of the slot hole, and limiting the subsequent concrete slurry from flowing through the gap between the H-shaped steel joint and the bottom wall of the slot hole to the side of the H-shaped steel joint away from the steel mesh frame.

[0024] 3. After the steel mesh frame is hoisted, an anti-circulation steel plate is driven into the gap between the side of the H-steel joint and the side wall of the slot hole. The anti-circulation baffle is used to initially block the concrete slurry subsequently injected into the slot hole surface, so as to limit the concrete slurry from flowing around to the side of the H-steel joint away from the steel mesh frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram used in this application to illustrate the connection relationship between the steel grid and the H-shaped steel joint.

[0026] Figure 2 This is a schematic diagram used in this application to illustrate the state of hanging the starting section of the ground-connected wall steel grid.

[0027] Figure 3 yes Figure 2 Enlarged schematic diagram of part A in the middle.

[0028] Figure 4 This is a schematic diagram used in the present application to illustrate the state when the sealed airbag is inflated to expand.

[0029] Figure 5 This is a schematic diagram used in this application to illustrate the state of filling bagged gravel.

[0030] Figure 6 This is a schematic diagram used in this application to illustrate the state of filling bagged clay.

[0031] Description of reference numerals: 1. Steel bars; 11. H-shaped steel joints; 111. Limiting plates; 112. Limiting grooves; 113. Anti-circumvention baffles; 114. Connecting rods; 2. Guide walls; 3. Slot holes; 21. Connecting plates; 4. Sealing airbags; 5. Bags of gravel; 6. Bags of clay. DETAILED DESCRIPTION

[0032] The following is combined with Figure 2-6 This application is described in further detail.

[0033] The present application embodiment discloses a vertical shaft underground continuous wall casting construction method, comprising the following steps: S1: Reference Figure 2 , Guide wall 2 construction: The guide wall 2 structure is constructed in the annular ground-connected wall construction area, and the concrete strength grade of the guide wall 2 is C20.

[0034] During the pouring process of the guide wall 2 , a connecting plate 21 for connecting the H-shaped steel joint 11 is pre-buried on the top of the guide wall 2 .

[0035] S2: Slot 3 construction: excavate the ground diaphragm wall segment slot 3; the specific steps are as follows; S2.1: Slot 3 layout: According to the design drawings and the control points, leveling points and general construction deployment provided by the builder, the slot 3 of the underground continuous wall is accurately located on the guide wall 2 and marked; S2.2: Drilling a hole at the position of slot 3 by means of a rotary drilling rig; S2.3: The slot hole 3 is milled by a slot milling machine. Since the slot hole 3 of the present application is arc-shaped, the slot milling machine adopts the method of milling the two ends first and then the middle to perform the slotting construction during the specific construction.

[0036] During the excavation of the slot milling machine, the excavation speed of the slot milling machine is adjusted according to the geological conditions. It is not advisable to excavate quickly when the slot is formed to prevent the slot wall from becoming unstable. The verticality of the slot milling machine is consistent with the axis of the slot section and is monitored by two independent inclinometers. The data is processed by the computer in the cab and displayed on the LCD screen, so that the driver can monitor at any time and adjust the verticality of the slot milling machine by changing the speed of the slot milling machine. After the slot hole 3 is excavated to the designed depth and accepted, the slot is cleaned and the slurry is replaced.

[0037] S3: Processing of the steel mesh frame 1: Binding and processing the steel mesh frame 1, and connecting the H-shaped steel joint 11 on the side of the steel mesh frame 1.

[0038] Reference Figure 2 and Figure 3 The two side walls of the H-shaped steel joint 11 adjacent to the notch are welded with limiting members, and the two ends of the limiting members extend to the top and bottom ends of the H-shaped steel joint 11 respectively; the limiting members include two limiting plates 111 welded in parallel on the H-shaped steel joint 11. In this embodiment, the limiting plates 111 are angle irons, and the two limiting plates 111 form a limiting groove 112.

[0039] Reference Figure 2 and Figure 4 One side of the steel grid 1 is welded and fixed to the notch on one side of the H-shaped steel joint 11. A sealing airbag 4 is installed at the bottom of the H-shaped steel joint 11 away from the steel grid 1. The sealing airbag 4 is connected to an air pipe, and the end of the air pipe away from the sealing airbag 4 extends to the top of the H-shaped steel joint 11.

[0040] S4: Steel mesh frame 1 is suspended, refer to Figure 3 and Figure 4 , the specific steps are as follows: S4.1: Fold the sealing airbag 4 and store it in the notch of the H-shaped steel joint 11, and temporarily bond the sealing airbag 4 to the notch of the H-shaped steel joint 11 by using an adhesive tape; S4.2: Use a crawler crane to lift the steel mesh frame 1 into the corresponding slot 3; S4.3: Fixing the H-shaped steel joint 11: One end of the connecting rod 114 is welded and fixed to the top of the H-shaped steel joint 11, and the other end of the connecting rod 114 is welded and fixed to the corresponding connecting plate 21 at the top of the guide wall 2; S4.4: Inflate the sealing airbag 4: Inflate the sealing airbag 4 through the air pipe to expand the sealing airbag 4 and seal the gap between the bottom end of the H-shaped steel joint 11 and the bottom wall of the slot hole 3; S4.5: Installation of the anti-circumference baffles 113 on both sides of the H-shaped steel joint 11: The anti-circumference baffles 113 are embedded into the corresponding limiting grooves 112 on the sides of the H-shaped steel joint 11, and the anti-circumference iron plates are driven into the H-shaped steel joint 11 by a vibrating hammer. In the actual construction process, the anti-circumference baffles 113 can be installed in sections.

[0041] By folding and storing the sealing airbag 4 in the notch of the H-shaped steel joint 11 before hanging the steel mesh frame 1, on the one hand, it is helpful to reduce the resistance when hanging into the notch, facilitating the smooth lowering of the steel mesh frame 1; on the other hand, it is helpful to reduce the friction between the sealing airbag 4 and the wall of the slot hole 3 during the process of hanging the steel mesh frame 1 into the slot hole 3, which may cause the sealing airbag 4 to be damaged.

[0042] By welding and fixing the two ends of the connecting rod 114 to the top of the H-shaped steel joint 11 and the connecting plate 21 on the guide wall 2, the H-shaped steel joint 11 is temporarily fixed to the top of the guide wall 2 using the connecting rod 114; when the anti-circumvention baffle 113 is subsequently inserted, it is helpful to limit the displacement of the H-shaped steel joint 11.

[0043] By inserting an anti-circumvention baffle 113 in the gap between the side wall of the H-shaped steel joint 11 and the side wall of the slot hole 3, when pouring concrete subsequently, the anti-circumvention baffle 113 between the side wall of the H-shaped steel joint 11 and the side wall of the slot hole 3 can be used to initially block the concrete slurry to limit the concrete slurry from flowing around to the side of the H-shaped steel joint 11 away from the steel grid 1.

[0044] By setting the limiting groove 112 on the side wall of the H-shaped steel joint 11, when inserting the anti-circumference baffle 113, the side of the anti-circumference baffle 113 close to the H-shaped steel joint 11 can be embedded into the limiting groove 112. On the one hand, when inserting the anti-circumference baffle 113, the anti-circumference baffle 113 can be guided by the limiting groove 112 so that the anti-circumference baffle 113 can be better inserted into the slot 3. On the other hand, the anti-circumference baffle 113 can be limited by the limiting groove 112, which is beneficial for the subsequent anti-circumference baffle 113 to be more firmly supported in the gap between the side wall of the H-shaped steel joint 11 and the side slot wall of the slot 3 after being inserted.

[0045] S5: Reference Figure 5 and Figure 6 , Installation and construction of the bypass prevention component: fill the lower area and upper area of ​​the gap between the H-shaped steel joint 11 and the end of the slot hole 3 with bagged gravel 5 and bagged clay 6 respectively; the specific steps are as follows: S5.1: Put the bagged gravel 5 and the bagged clay 6 into corresponding net bags respectively; S5.2: Use a crane to hoist a net bag containing several bags of crushed stones 5 into the lower area of ​​the gap between the H-shaped steel joint 11 and the end of the slot hole 3; S5.3: compacting the bagged gravel 5 by a compacting tool; S5.4: Use a crane to hoist a net bag containing several bags of clay 6 into the lower area of ​​the gap between the H-shaped steel joint 11 and the end of the slot 3; S5.4: Compact the bagged gravel 5 using a compacting tool.

[0046] The compaction tool (not shown in the figure) includes a drill rod and a compaction plate, which is vertically welded to the bottom end of the drill rod. When the compaction tool is used to compact the bagged gravel 5 or bagged clay 6, after the top of the drill rod is connected to the power head of the rotary drilling rig, the rotary drilling rig drives the drill rod to drive the compaction plate to move down to the gap between the H-shaped steel joint 11 and the slot 3 to compact the bagged gravel 5 or bagged clay 6.

[0047] By filling bagged gravel 5 and bagged clay 6 in turn into the gap between the notch of the H-steel joint 11 and the end of the slot hole 3, the bagged gravel 5 and bagged clay 6 filled in the gap are used to form an anti-circumvention component to block the gap between the notch of the H-steel joint 11 and the end of the slot hole 3, so as to limit the concrete slurry from flowing around to the side of the H-steel joint away from the steel frame and condensing on the H-steel joint 11 during the subsequent pouring of the ground-connected wall, thereby reducing the situation where the steel frame at the subsequent construction end of the ground-connected wall cannot be embedded in the notch of the H-steel joint 11 of the first construction section of the ground-connected wall.

[0048] By filling bagged gravel 5 into the lower area of ​​the gap between the notch of the H-shaped steel joint 11 and the end of the slot hole 3, the deadweight and structural stability of the bagged gravel 5 can be utilized to limit the subsequent displacement and deformation of the bottom of the anti-circumvention component due to the large concrete pouring pressure and deadweight pressure at the bottom of the slot hole 3.

[0049] By filling the bagged clay 6 into the upper area of ​​the gap between the notch of the H-shaped steel joint 11 and the end of the slot hole 3, the bagged clay 6 is used to block the upper area of ​​the gap between the notch of the H-shaped steel joint 11 and the end of the slot hole 3, while reducing the amount of crushed stone used, which is conducive to better saving construction costs.

[0050] S6: Casting of ground-connected wall segments: pouring concrete slurry into the slots 3 to form ground-connected wall segments.

[0051] Concrete pouring adopts the conduit method, and the specific conduit uses a circular spiral quick connector type. The conduit is hoisted into the specified position of the slot section by a crane, and a funnel is installed on the top of the conduit. The upper part of the conduit funnel is circular and the lower part is conical.

[0052] S7: Remove the bypass prevention components. The specific steps are as follows: S7.1: Grab the net bags containing bagged clay 6 and bagged gravel 5 from the gap between the H-shaped steel joint 11 and the side wall of the slot hole 3 in sequence by using a crane or a hydraulic grab bucket; S7.2: Release the gas in the sealed airbag 4 through the trachea.

[0053] In actual construction, the removal of bagged clay 6 and bagged gravel 5 can be carried out after the excavation of the slot hole 3 in the construction section behind the ground-anchored wall is completed, so that the crane and the hydraulic grab bucket can obtain a larger operating space, making it easier to grab the bagged clay 6 and bagged gravel 5.

[0054] S8: Repeat steps S2 to S7 until the casting of the remaining diaphragm wall segments is completed.

[0055] The present application fills bagged gravel 5 and bagged clay 6 into the gap between the notch on the side of the H-shaped steel joint 11 away from the steel frame and the end of the slot hole 3, and at the same time inserts an anti-circumvention baffle 113 between the H-shaped steel joint 11 and the side slot wall of the slot hole 3, thereby effectively limiting the subsequent concrete slurry from circumventing and condensing on the side of the H-shaped steel joint 11 away from the steel frame, which is beneficial for embedding the side of the steel frame into the notch of the H-shaped steel joint 11 of the first construction section of the ground-connected wall when the steel frame is hoisted in the subsequent construction section after the ground-connected wall.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for pouring a vertical shaft underground continuous wall. Features: The following steps are involved: S1: Construction of guide wall (2): Construction of the ground-connected guide wall (2) structure; S2: Slot (3) construction: construct the ground-connected wall segment slot (3); S3: Processing the steel mesh (1): tying and processing the steel mesh (1), and connecting the H-shaped steel joint (11) on the side of the steel mesh (1); S4: Hanging and placing the steel mesh frame (1): hanging and placing the steel mesh frame (1) into the corresponding slot hole (3); S5: Installation and construction of the bypass prevention component: the lower area and the upper area of ​​the gap between the H-shaped steel joint (11) and the end of the slot hole (3) are filled with bagged gravel (5) and bagged clay (6) respectively; S6: Casting of ground-connected wall segments: injecting concrete slurry into the slots (3) to form ground-connected wall segments; S7: removing the bypass prevention component; removing the bagged clay (6) and bagged gravel (5) in the gap between the H-shaped steel joint (11) and the end of the slot hole (3); S8: Repeat steps S2 to S7 until the casting of the remaining diaphragm wall segments is completed.

2. A vertical shaft underground continuous wall pouring construction method according to claim 1, Features: In step S3, a sealing airbag (4) is installed at the bottom end of the H-shaped steel joint (11) away from the steel mesh frame (1), and the sealing airbag (4) is connected to an air pipe; In step S4, after the steel mesh frame (1) is suspended in the slot hole (3), air is inflated into the sealing airbag (4) through the air pipe, so that the sealing airbag (4) expands and blocks the gap between the bottom of the H-shaped steel joint (11) and the bottom of the slot hole (3); In step S6, after the casting of the ground-connected wall segment is completed, the gas in the sealing airbag (4) is released through the air pipe.

3. A vertical shaft underground continuous wall pouring construction method according to claim 2, Features: In step S4, the steel mesh frame (1) is suspended before being placed in the slot hole (3), the sealing airbag (4) is folded and stored, and temporarily fixed in the slot of the H-shaped steel joint (11) on the side away from the steel mesh frame (1) by means of adhesive tape.

4. A vertical shaft underground continuous wall pouring construction method according to claim 1, Features: In step S4, after the steel mesh frame (1) is suspended in the slot hole (3), an anti-circumvention baffle (113) is driven into the gap between the two sides of the H-shaped steel joint (11) and the side slot wall of the slot hole (3).

5. A vertical shaft underground continuous wall pouring construction method according to claim 4, Features: Limiting members are arranged on both sides of the H-shaped steel joint (11), and the limiting members include two limiting plates (111) arranged opposite to each other, and the two limiting plates (111) form limiting grooves (112) for the anti-circumvention baffle plate (113) to be embedded in; In step S4, when the anti-circumvention baffle plate (113) is installed, one side of the anti-circumvention baffle plate (113) is embedded in the corresponding limiting groove (112).

6. A vertical shaft underground continuous wall pouring construction method according to claim 1, Features: In step S5, before filling the bagged gravel (5) and the bagged clay (6), the bagged clay (6) and the bagged gravel (5) are respectively placed into corresponding net bags.

7. A vertical shaft underground continuous wall pouring construction method according to claim 6, Features: In step S5, after the bagged clay (6) is filled in place, the bagged clay (6) is compacted by a compacting tool.

8. A vertical shaft underground continuous wall pouring construction method according to claim 6, Features: In step S1, during the pouring process of the guide wall (2), a connecting plate (21) is pre-buried at the top of the guide wall (2) corresponding to the H-shaped steel joint (11); In step S4, after the steel mesh frame (1) is hoisted into place, a connecting rod (114) is welded to the top of the H-shaped steel joint (11), and the end of the connecting rod (114) away from the H-shaped steel joint (11) is welded to the connecting plate (21) of the guide wall (2).

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