Foundation pit support deep mixing pile waterproof curtain

Abstract

The utility model discloses a foundation pit support deep mixing pile waterproof curtain which comprises a foundation pit body, the foundation pit body is composed of a pit bottom and a pit wall, the pit wall is perpendicular to the pit bottom, and a pit wall waterproof component is arranged on the pit wall. A continuous stirring pile composed of a plurality of stirring piles is arranged between the inner surface of the pit wall and the pit wall water stop component, an outer protection supporting component is arranged on the outer side of the pit wall water stop component, and a plurality of middle supporting components are evenly arranged between the outer protection supporting component and the pit wall water stop component. The double-layer water stopping structure has the advantages that the structure is simple, construction is convenient, the overall water stopping effect can be effectively improved, double-layer water stopping is achieved, the overall strength is effectively enhanced, and dangerous conditions such as instability of a foundation pit slope are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to a deep mixing pile water-stopping curtain for foundation pit support. Background Art

[0002] Water-stop curtain refers to a concept, which is the general term for the water-stop series outside the main body of the project. It is a continuous water-stop body used to prevent or reduce the inflow of groundwater from the side walls and bottom of the foundation pit into the foundation pit.

[0003] During the construction of the current water-stop curtain, it is necessary to use a drilling device to drill a hole in the ground, then place a positioning card at the hole entrance, and insert two steel bars into the holes on both sides of the positioning card respectively. At this time, the steel bars are located on both sides of the borehole at the same time, and then concrete is poured into the borehole until the borehole is filled. The steel bar is then pulled out, and the above operation is repeated on the other side of the borehole. Then, a hole is drilled again between the two boreholes and concrete is poured. At this time, the concrete in the borehole in the middle fills the borehole and the vertical holes remaining after the steel bars on both sides are pulled out.

[0004] The above-mentioned traditional water-stop curtain adopts a pure concrete structure. Due to the insufficient strength and thickness of the mixing piles themselves, the water-stop curtain often leaks, causing the foundation pit slope to become unstable and the surrounding buildings to deform and crack, and even become dangerous buildings. At the same time, there are also problems such as loose overlap of the mixing piles and poor construction quality, resulting in unsatisfactory application effect of deep mixing piles.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a water-stop curtain for deep mixing piles for foundation pit support.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a deep mixing pile water-stop curtain for foundation pit support, including a foundation pit body, the foundation pit body is composed of a pit bottom and a pit wall, and the pit wall is perpendicular to the pit bottom, a pit wall water-stop component is arranged on the pit wall, and a continuous mixing pile composed of a plurality of mixing piles is arranged between the inner surface of the pit wall and the pit wall water-stop component, an outer protective support component is arranged on the outer side of the pit wall water-stop component, a plurality of middle support components are evenly arranged between the outer protective support component and the pit wall water-stop component, and a casting cavity is formed between the middle support components.

[0008] Preferably, the pit wall water-stopping component includes a supporting transverse plate, and a plurality of reinforcing ribs are arranged through the supporting transverse plate, a support bar is embedded on the inner side of the supporting transverse plate, side plates are integrally connected to both sides of the supporting transverse plate, and a semicircular groove matching the mixing pile is opened on the side plate.

[0009] Preferably, the middle support member includes an outer hollow support pile, an inner hollow support pile is arranged inside the outer hollow support pile, the outer hollow support pile and the inner hollow support pile are connected by an array of reinforcing cross bars, and a grouting space is provided between the outer hollow support pile and the inner hollow support pile.

[0010] Preferably, a plurality of slurry flow openings are opened on both sides of the inner hollow support pile, and the slurry flow openings connect the inner hollow support pile with the grouting space, and one side of the outer wall of the outer hollow support pile is integrally connected with a fixing bolt fixedly connected to the supporting cross plate.

[0011] Preferably, the outer protective support component includes a C-shaped outer protective support plate, strip assembly grooves are provided on both sides of the C-shaped outer protective support plate, and assembly plates are symmetrically provided on the outer wall of the supporting cross plate, the strip assembly grooves are snap-fitted with the assembly plates, and sealing plates are provided on both sides of the inner wall of the strip assembly grooves.

[0012] Preferably, an array of positioning plates is provided inside the C-shaped outer protective support plate, positioning cavities are formed between adjacent positioning plates, and the positioning cavities match the outer hollow support piles.

[0013] Preferably, reinforcing plates are symmetrically connected between two adjacent groups of the positioning plates and the inner walls of the C-shaped outer protective support plates, and steel meshes are installed on the reinforcing plates.

[0014] The utility model provides a water-stop curtain for deep mixing piles in foundation pit support, and the beneficial effects are as follows:

[0015] By arranging a pit wall water-stopping component on the pit wall, the pit wall of the foundation pit can be water-stopped. A continuous mixing pile composed of a plurality of mixing piles is arranged between the inner surface of the pit wall and the pit wall water-stopping component. After cooperating with the pit wall water-stopping component, the overall sealing and water-stopping effect can be greatly improved. At the same time, the overall structural strength is increased. After cooperating with the outer protective support component and the middle support component, and pouring concrete in the pouring cavity, it can form a whole with good water-stopping effect and stable overall structure. The utility model has a simple structure and is convenient to construct. It can effectively improve the overall water-stopping effect, realize double-layer water-stopping, and effectively enhance the overall strength to avoid dangerous conditions such as instability of the foundation pit slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a front view of a water-stop curtain for deep mixing piles for foundation pit support according to an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a pit wall water-stopping component in a water-stopping curtain of deep mixing piles for foundation pit support according to an embodiment of the utility model;

[0019] Figure 3 It is a cross-sectional view of a middle supporting member in a water-stop curtain of a deep mixing pile for foundation pit support according to an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the inner and outer protective support components of a deep mixing pile water-stop curtain for foundation pit support according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Foundation pit body; 2. Pit bottom; 3. Pit wall; 4. Pit wall water-stopping member; 5. Continuous mixing pile; 6. Middle support member; 7. External protection support member; 8. Casting cavity; 9. Support cross plate; 10. Reinforcement ribs; 11. Support bar; 12. Side plate; 13. Semicircular groove; 14. External hollow support pile; 15. Internal hollow support pile; 16. Reinforcement cross bar; 17. Grouting space; 18. Slurry flow port; 19. Fixing bolt; 20. C-shaped external protection support plate; 21. Strip assembly groove; 22. Assembly plate; 23. Positioning plate; 24. Positioning cavity; 25. Reinforcement plate; 26. Steel mesh. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4The utility model provides a deep mixing pile water-stop curtain for foundation pit support, comprising a foundation pit body 1, wherein the foundation pit body 1 is composed of a pit bottom 2 and a pit wall 3, and the pit wall 3 is perpendicular to the pit bottom 2, a pit wall water-stop component 4 is arranged on the pit wall 3, and a continuous mixing pile 5 composed of a plurality of mixing piles is arranged between the inner surface of the pit wall 3 and the pit wall water-stop component 4, by arranging the pit wall water-stop component 4 on the pit wall 3, the pit wall of the foundation pit can be water-stopped, and the continuous mixing pile 5 composed of a plurality of mixing piles is arranged between the inner surface of the pit wall 3 and the pit wall water-stop component 4 , after being matched with the pit wall water-stopping component 4, the overall sealing and water-stopping effect can be greatly improved, and at the same time, its overall structural strength is increased. An outer protective support component 7 is arranged on the outside of the pit wall water-stopping component 4, and a number of middle support components 6 are evenly arranged between the outer protective support component 7 and the pit wall water-stopping component 4, and a casting cavity 8 is formed between the middle support components 6. Then, the outer protective support component 7 and the middle support component 6 are matched, and after concrete is poured in the casting cavity 8, it can form a whole, has a good water-stopping effect, and the overall structure is stable.

[0025] In one embodiment, please refer to the attached manual. Figure 2 As shown, the pit wall water-stopping member 4 includes a supporting transverse plate 9, and a plurality of reinforcing ribs 10 are provided through the supporting transverse plate 9, a supporting bar 11 is embedded on the inner side of the supporting transverse plate 9, and side plates 12 are integrally connected to both sides of the supporting transverse plate 9, and a semicircular groove 13 matching the mixing pile is provided on the side plate 12. The supporting transverse plate 9 is provided to cooperate with the reinforcing ribs 10 and the supporting bar 11 to improve its supporting strength, and the semicircular groove 13 provided on the side plate 12 avoids affecting the construction of the mixing pile, so that the outermost mixing pile can be adapted to the semicircular groove 13.

[0026] In one embodiment, please refer to the attached manual. Figure 3 As shown, the middle support member 6 includes an outer hollow support pile 14, an inner hollow support pile 15 is arranged inside the outer hollow support pile 14, the outer hollow support pile 14 and the inner hollow support pile 15 are connected by an array of reinforcing cross bars 16, and a grouting space 17 is formed between the outer hollow support pile 14 and the inner hollow support pile 15, and a plurality of slurry flow ports 18 are opened on both sides of the inner hollow support pile 15, and the slurry flow ports 18 connect the inner hollow support pile 15 with the grouting space 17, and a fixing bolt 19 fixedly connected to the supporting cross plate 9 is integrally connected to one side of the outer wall of the outer hollow support pile 14. The outer hollow support pile 14 and the inner hollow support pile 15 are connected and fixed by the provided reinforcing cross bars 16, and when pouring, concrete is poured into the grouting space 17 and the inner hollow support pile 15 respectively, and the provided slurry flow ports 18 form a connection relationship between the poured concrete to ensure its integrity.

[0027] In one embodiment, please refer to the attached manual. Figure 4 As shown, the outer protective support member 7 includes a C-shaped outer protective support plate 20, and strip assembly grooves 21 are provided on both sides of the C-shaped outer protective support plate 20, and assembly plates 22 are symmetrically provided on the outer wall of the supporting cross plate 9, the strip assembly groove 21 is snap-fitted with the assembly plate 22, and sealing sheets are provided on both sides of the inner wall of the strip assembly groove 21, and an array of positioning plates 23 is provided in the C-shaped outer protective support plate 20, and a positioning cavity 24 is formed between adjacent positioning plates 23, and the positioning cavity 24 matches the outer hollow support pile 14, and reinforcing plates 25 are symmetrically connected between two groups of adjacent positioning plates 23 and the inner wall of the C-shaped outer protective support plate 20, and a steel mesh 26 is installed on the reinforcing plate 25. By means of the provided strip assembly groove 21 and the snap-fitting engagement with the assembly plate 22, the assembly connection between the C-shaped outer protective support plate 20 and the supporting cross plate 9 is realized, and the positioning cavity 24 formed by the positioning plate 23 is connected and positioned to the outer hollow support pile 14. When pouring concrete through the pouring cavity 8, the steel mesh 26 and the reinforcing plate 25 are used in conjunction to enhance the internal strength of the concrete without affecting the flow of the concrete.

[0028] In actual application, by arranging a pit wall water-stopping component 4 on the pit wall 3, the pit wall of the foundation pit can be water-stopped. The continuous mixing pile 5 composed of a plurality of mixing piles is arranged between the inner surface of the pit wall 3 and the pit wall water-stopping component 4. After cooperating with the pit wall water-stopping component 4, the overall sealing and water-stopping effect can be greatly improved. At the same time, the overall structural strength is increased. After cooperating with the outer protective support component 7 and the middle support component 6, and pouring concrete in the pouring cavity 8, it can form a whole, has a good water-stopping effect, and the overall structure is stable. The utility model has a simple structure and is convenient to construct. It can effectively improve the overall water-stopping effect, realize double-layer water-stopping, and effectively enhance the overall strength to avoid dangerous conditions such as instability of the foundation pit slope.

[0029] Although this specification is described according to implementation modes, not every implementation mode includes 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 water-stop curtain for deep mixing piles for foundation pit support, characterized in that: The invention comprises a foundation pit body (1), the foundation pit body (1) being composed of a pit bottom (2) and a pit wall (3), wherein the pit wall (3) is perpendicular to the pit bottom (2), a pit wall water-stopping component (4) is arranged on the pit wall (3), and a continuous mixing pile (5) consisting of a plurality of mixing piles is arranged between the inner surface of the pit wall (3) and the pit wall water-stopping component (4), an outer protective support component (7) is arranged on the outer side of the pit wall water-stopping component (4), and a plurality of middle support components (6) are evenly arranged between the outer protective support component (7) and the pit wall water-stopping component (4), and a casting cavity (8) is formed between the middle support components (6).

2. A water-stop curtain for deep mixing piles for foundation pit support according to claim 1, characterized in that: The pit wall water-stopping member (4) comprises a supporting transverse plate (9), and a plurality of reinforcing ribs (10) are provided through the supporting transverse plate (9), a supporting strip (11) is embedded in the inner side of the supporting transverse plate (9), and side plates (12) are integrally connected to both sides of the supporting transverse plate (9), and a semicircular groove (13) matching the mixing pile is provided on the side plate (12).

3. A water-stop curtain for deep mixing piles for foundation pit support according to claim 2, characterized in that: The middle support member (6) comprises an outer hollow support pile (14), an inner hollow support pile (15) is arranged inside the outer hollow support pile (14), the outer hollow support pile (14) and the inner hollow support pile (15) are connected via an array of reinforcing cross bars (16), and a grouting space (17) is provided between the outer hollow support pile (14) and the inner hollow support pile (15).

4. A water-stop curtain for deep mixing piles for foundation pit support according to claim 3, characterized in that: A plurality of slurry flow openings (18) are provided on both sides of the inner hollow support pile (15), and the slurry flow openings (18) connect the inner hollow support pile (15) with the grouting space (17). A fixing bolt (19) fixedly connected to the supporting cross plate (9) is integrally connected to one side of the outer wall of the outer hollow support pile (14).

5. A water-stop curtain for deep mixing piles for foundation pit support according to claim 4, characterized in that: The outer protection support member (7) comprises a C-shaped outer protection support plate (20), strip-shaped assembly grooves (21) are arranged on both sides of the C-shaped outer protection support plate (20), and assembly plates (22) are symmetrically arranged on the outer wall of the supporting cross plate (9), the strip-shaped assembly grooves (21) are snap-fitted with the assembly plates (22), and sealing sheets are arranged on both sides of the inner wall of the strip-shaped assembly grooves (21).

6. A water-stopping curtain for deep mixing piles for foundation pit support according to claim 5, characterized in that: An array of positioning plates (23) is arranged inside the C-shaped outer protective support plate (20), positioning cavities (24) are formed between adjacent positioning plates (23), and the positioning cavities (24) match the outer hollow support piles (14).

7. A water-stop curtain for deep mixing piles for foundation pit support according to claim 6, characterized in that: A reinforcing plate (25) is symmetrically connected between the inner walls of two adjacent groups of the positioning plates (23) and the C-shaped outer protective support plate (20), and a steel mesh (26) is installed on the reinforcing plate (25).

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