Foundation pit water stop construction structure

Abstract

The utility model provides a foundation pit water stopping construction structure, and relates to the technical field of water stopping, the foundation pit water stopping construction structure comprises a foundation pit main body, a water stopping curtain is arranged in the foundation pit main body, the water stopping curtain is formed by connecting a plurality of high-pressure jet grouting column main bodies, and reinforcing parts are arranged among the high-pressure jet grouting column main bodies; and the reinforcing piece is used for reinforcing the high-pressure jet grouting column main body. According to the waterproof curtain, the reinforcing pieces are arranged and can support a part of the high-pressure jet grouting column bodies, and due to the fact that the multiple high-pressure jet grouting column bodies are connected with one another, the stability of the curtain formed by the high-pressure jet grouting column bodies can be improved through the reinforcing pieces, the inclination situation is reduced, and the overall stability of the waterproof curtain is ensured; due to the fact that the stability of the high-pressure jet grouting column bodies is enhanced, the gaps between the adjacent high-pressure jet grouting column bodies are effectively controlled, the risk that underground water leaks through the gaps is remarkably reduced, and the waterproof performance of the foundation pit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water stopping, and in particular to a foundation pit water stopping construction structure. Background Art

[0002] In the field of civil engineering, especially in deep foundation pit construction, how to effectively prevent groundwater from flowing into the foundation pit is a key link to ensure construction safety and quality. To this end, water-stop curtains are widely used as an important engineering measure. Traditional water-stop curtain construction usually relies on spaced high-pressure jet spray columns. These form rows of closely arranged piles as a barrier to prevent groundwater from flowing into the foundation pit.

[0003] However, with increasing excavation depths and increasingly complex geological conditions, the design of traditional water-stop curtains faces numerous challenges. The soil at the bottom of deep foundation pits often bears enormous pressure, which is transmitted through the soil to the high-pressure jet grouting columns. This causes the columns to easily deflect or tilt over time. This is particularly problematic in areas with poor geological conditions, such as soft soil and quicksand. Therefore, we have addressed this issue by proposing a foundation pit water-stop construction structure. Summary of the Invention

[0004] The purpose of the utility model is to solve the problem that the existing high-pressure rotary spray column is prone to deviation or tilt under long-term action.

[0005] In order to achieve the above-mentioned purpose of the invention, the utility model provides a foundation pit water-stopping construction structure to improve the above-mentioned problem.

[0006] The specific application is as follows:

[0007] A foundation pit water-stopping construction structure includes a foundation pit main body, a water-stopping curtain is arranged in the foundation pit main body, and the water-stopping curtain is formed by a plurality of high-pressure rotary grouting column main bodies connected to each other. Reinforcements are arranged between the plurality of high-pressure rotary grouting column main bodies, and the reinforcements are used to reinforce the high-pressure rotary grouting column main bodies.

[0008] As a preferred technical solution of the present application, the reinforcement member includes a plurality of bored piles, and the plurality of bored piles are all arranged in the foundation pit body, and each bored pile is in contact with the high-pressure rotary jet column body.

[0009] As a preferred technical solution of the present application, the reinforcement member further includes a reinforcement component, which is arranged between a plurality of high-pressure jet spray column bodies and a plurality of bored piles.

[0010] As a preferred technical solution of the present application, the reinforcement assembly includes four angle support columns, and the four angle support columns are all arranged in the foundation pit body, and the angle support columns are in contact with the drilled cast-in-place piles.

[0011] As a preferred technical solution of the present application, four support beams are provided between the four corner support columns, and the four support beams are used for reinforcement between the four corner support columns.

[0012] As a preferred technical solution of the present application, a connector is provided between the end of the support beam and the angle support column, and the connector is used to realize the connection between the support beam and the angle support column.

[0013] As a preferred technical solution of the present application, the connecting member includes a connecting seat fixedly installed on the side of the angle support column, a connecting groove is opened on the top of the connecting seat, a connecting block is inserted into the connecting groove, and the connecting block is fixedly connected to the end of the support beam.

[0014] As a preferred technical solution of the present application, a limiting member is provided on the support beam, and the limiting member is used to limit the main body of the high-pressure rotary spray column.

[0015] As a preferred technical solution of the present application, the limiting member includes an adjusting bolt threadedly connected to the support beam, and the end of the adjusting bolt close to the high-pressure rotary spray column body is connected to a support block through a bearing, and the side of the support block away from the adjusting bolt is in contact with the high-pressure rotary spray column body.

[0016] As a preferred technical solution of the present application, the middle part of the support block is protruding, and the protruding part of the middle part of the support block is inserted between two connected high-pressure rotary spray column bodies.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the scheme of this application:

[0019] In order to solve the problem in the prior art that high-pressure rotary jet columns are prone to displacement or tilt under long-term action, the present application sets up reinforcements, which can support a part of the high-pressure rotary jet column body. Since several high-pressure rotary jet column bodies are connected to each other, the setting of the reinforcements can improve the stability of the curtain formed by the high-pressure rotary jet column body, reduce the tilting situation, and ensure the overall stability of the water-stop curtain. Since the stability of the high-pressure rotary jet column body is enhanced, the gap between adjacent high-pressure rotary jet column bodies is effectively controlled, which significantly reduces the risk of groundwater leakage through the gaps and improves the waterproof performance of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the foundation pit water-stop construction structure provided for this application;

[0021] Figure 2 A schematic diagram of the top view of the foundation pit water-stop construction structure provided for this application;

[0022] Figure 3Schematic diagram of the structure of the high-pressure rotary jet column and bored pile of the foundation pit water-stop construction structure provided in this application;

[0023] Figure 4 A schematic diagram of the structure of the reinforcement components of the foundation pit water-stop construction structure provided for this application;

[0024] Figure 5 This is a schematic structural diagram of the connection groove of the foundation pit water-stop construction structure provided in this application.

[0025] Indicated in the figure:

[0026] 1. Foundation pit body; 2. High-pressure jet jet column body; 3. Drilled cast-in-place pile; 4. Reinforcement assembly; 401. Angle support column; 402. Support beam; 403. Connecting seat; 404. Connecting groove; 405. Connecting block; 406. Adjusting bolt; 407. Support block. DETAILED DESCRIPTION

[0027] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] As recorded in the background technology, with the increase in foundation pit excavation depth and the complexity of geological conditions, the design of traditional water-stop curtains faces many challenges. The soil layer at the bottom of the deep foundation pit is often under tremendous pressure. These pressures are transmitted to the high-pressure rotary jet grouting column through the soil layer, causing the high-pressure rotary jet grouting column to easily shift or tilt under long-term action. Especially in areas with poor geological conditions such as soft soil and quicksand layers, the stability problem of cast-in-place piles is particularly prominent.

[0029] In order to solve this technical problem, the utility model provides a foundation pit water-stopping construction structure.

[0030] Specifically, please refer to Figure 1-Figure 3 , the foundation pit water-stop construction structure specifically includes:

[0031] The foundation pit main body 1 is provided with a water-stop curtain inside the foundation pit main body 1. The water-stop curtain is formed by a number of high-pressure rotary grouting column main bodies 2 connected to each other. Reinforcements are provided between the several high-pressure rotary grouting column main bodies 2. The reinforcements are used to reinforce the high-pressure rotary grouting column main bodies 2.

[0032] The foundation pit water-stopping construction structure provided by the utility model adopts the reinforcement piece set up in the present application, and the reinforcement piece can support a part of the high-pressure rotary jet column body 2. Since several high-pressure rotary jet column bodies 2 are connected to each other, the setting of the reinforcement piece can improve the stability of the curtain formed by the high-pressure rotary jet column body 2, reduce the tilting situation, and ensure the overall stability of the water-stopping curtain. Since the stability of the high-pressure rotary jet column body 2 is enhanced, the gap between adjacent high-pressure rotary jet column bodies 2 is effectively controlled, which significantly reduces the risk of groundwater leakage through the gaps and improves the waterproof performance of the foundation pit.

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] Example 1, please refer to Figure 1-Figure 3 , a foundation pit water-stop construction structure, including a foundation pit main body 1, a water-stop curtain is arranged in the foundation pit main body 1, the water-stop curtain is formed by a plurality of high-pressure rotary spray column main bodies 2 connected to each other, and a reinforcement piece is arranged between the plurality of high-pressure rotary spray column main bodies 2, and the reinforcement piece is used to reinforce the high-pressure rotary spray column main body 2. The reinforcement piece provided in the present application can support a part of the high-pressure rotary spray column main body 2. Since the plurality of high-pressure rotary spray column main bodies 2 are connected to each other, the arrangement of the reinforcement piece can improve the stability of the curtain formed by the high-pressure rotary spray column main body 2, reduce the tilting situation, and ensure the overall stability of the water-stop curtain. Due to the enhanced stability of the high-pressure rotary spray column main body 2, the gap between adjacent high-pressure rotary spray column main bodies 2 is effectively controlled, which significantly reduces the risk of groundwater leakage through the gaps and improves the waterproof performance of the foundation pit;

[0037] The reinforcement provides additional support and connection for the high-pressure jet spray column body 2, enhancing its structural integrity and anti-tilt capability. The reinforcement and the high-pressure jet spray column body 2 work together to form a collaborative system that jointly withstands various loads from the surrounding environment, thereby effectively improving the stability and safety of the overall structure.

[0038] Example 2 further optimizes the foundation pit water-stopping construction structure provided in Example 1. Specifically, Figure 1-Figure 3As shown, the reinforcement member includes a plurality of bored piles 3, and the plurality of bored piles 3 are all arranged in the foundation pit main body 1, and each bored pile 3 is in contact with the high-pressure rotary jet column main body 2. The present application provides the bored piles 3, and the bored piles 3 can support a part of the high-pressure rotary jet column main body 2. Since the plurality of high-pressure rotary jet column main bodies 2 are connected to each other, the arrangement of the bored piles 3 can improve the stability of the curtain formed by the high-pressure rotary jet column main body 2, reduce the tilting situation, and ensure the overall stability of the water-stop curtain. Due to the enhanced stability of the high-pressure rotary jet column main body 2, the gap between adjacent high-pressure rotary jet column main bodies 2 is effectively controlled, which significantly reduces the risk of groundwater leakage through the gaps and improves the waterproof performance of the foundation pit.

[0039] By setting up drilled cast-in-place piles 3, a more solid and stable support can be provided for the high-pressure rotary jet grouting column body 2, which helps to further improve the bearing capacity of the water-stop curtain, enabling it to better cope with the challenges brought by complex geological conditions and construction environment. The contact between the drilled cast-in-place piles 3 and the high-pressure rotary jet grouting column body 2 can effectively transfer and disperse stress, reduce local stress concentration, and thus reduce the risk of structural damage. In addition, this optimization can also improve the deformation resistance of the water-stop curtain, ensure that a good water-stopping effect is maintained during long-term use, extend the service life of the foundation pit water-stop structure, and reduce maintenance costs; the drilled cast-in-place piles 3 themselves have high strength and stability, and the contact with the high-pressure rotary jet grouting column body 2 forms a complementary support system, jointly bearing external loads, thereby effectively improving the performance and reliability of the overall structure.

[0040] Further, such as Figure 1 and Figure 2 As shown, the reinforcement member further includes a reinforcement component 4, which is arranged between the plurality of high-pressure rotary jet column bodies 2 and the plurality of bored piles 3. The reinforcement component 4 can further reinforce the high-pressure rotary jet column bodies 2 and the bored piles 3, thereby further improving the stability of the high-pressure rotary jet column bodies 2 and the bored piles 3.

[0041] The setting of the reinforcement component 4 further enhances the connection strength and cooperative working ability between the high-pressure rotary jet grouting column body 2 and the bored pile 3, which helps to distribute the load more evenly, reduce the stress difference inside the structure, and thus reduce the risk of structural damage caused by stress concentration. At the same time, the reinforcement component 4 can effectively limit the relative displacement of the high-pressure rotary jet grouting column body 2 and the bored pile 3, improve the integrity and seismic performance of the structure, and ensure that when natural disasters such as earthquakes occur, the water-stop curtain can still maintain a good working condition and ensure the safety of the foundation pit; the reinforcement component 4 plays a connecting and coordinating role in the structure, so that the high-pressure rotary jet grouting column body 2 and the bored pile 3 can work better together and jointly withstand the impact of external loads and environmental changes.

[0042] Further, such as Figure 1 and Figure 2 As shown, the reinforcement component 4 includes four angle support columns 401, and the four angle support columns 401 are all arranged in the foundation pit main body 1, and the angle support columns 401 are in contact with the drilled and cast-in-place piles 3. The setting of the angle support columns 401 can reinforce the drilled and cast-in-place piles 3 at the corresponding positions, and then reinforce the high-pressure rotary jet column main body 2; the setting of the four angle support columns 401 significantly enhances the local support and reinforcement effect of the drilled and cast-in-place piles 3 and the high-pressure rotary jet column main body 2, they can effectively resist horizontal forces from different directions and improve the lateral stability of the structure, the contact between the angle support columns 401 and the drilled and cast-in-place piles 3 can effectively transfer and disperse the horizontal load, reduce the possibility of local deformation and damage, in addition, the angle support columns 401 can also increase the redundancy of the structure, that is, when some components are damaged, the stability of the overall structure can still be guaranteed, thereby improving the reliability and safety of the foundation pit water-stop structure; the special arrangement of the angle support columns 401 and the contact method with the drilled and cast-in-place piles 3 enable them to effectively play a lateral support role and enhance the overall stability and anti-deformation ability of the structure.

[0043] Further, such as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, four support beams 402 are arranged between the four corner support columns 401. The four support beams 402 are used to reinforce the four corner support columns 401. The setting of the support beams 402 can improve the stability of the four corner support columns 401; the setting of the four support beams 402 effectively connects the four corner support columns 401 into a whole, enhances the collaborative working ability and overall stability between the corner support columns 401, and the support beams 402 can evenly distribute the load, reduce the concentrated force borne by a single corner support column 401, thereby reducing the risk of local damage to the corner support column 401. At the same time, the support beams 402 can also limit the relative displacement and deformation between the corner support columns 401, improve the integrity and seismic performance of the structure, and ensure that under complex stress conditions, the corner support columns 401 can work together to ensure the stability and safety of the foundation pit water-stop structure.

[0044] Example 3 further optimizes the foundation pit water-stopping construction structure provided in Example 1 or 2. Specifically, a connecting piece is provided between the end of the support beam 402 and the angle support column 401. The connecting piece is used to realize the connection between the support beam 402 and the angle support column 401, so as to realize the stability between the support beam 402 and the angle support column 401; the setting of the connecting piece ensures the firmness and reliability of the connection between the support beam 402 and the angle support column 401, which helps to effectively transfer and disperse the load.

[0045] Further, such as Figure 4 and Figure 5As shown, the connector includes a connector seat 403 fixedly mounted on the side of the angle support column 401, a connector slot 404 is provided on the top of the connector seat 403, a connector block 405 is inserted into the connector slot 404, and the connector block 405 is fixedly connected to the end of the support beam 402. The plug-in arrangement of the connector block 405 and the connector slot 404 facilitates the assembly and disassembly between the angle support column 401 and the support beam 402. This plug-in connector design not only provides reliable connection performance, but also facilitates construction and subsequent maintenance and disassembly. During the construction process, it can be installed quickly and accurately, improving construction efficiency. When the structure needs to be inspected, repaired, or parts replaced, the support beam 402 and the angle support column 401 can be easily disassembled, reducing construction difficulty and cost. In addition, the plug-in method can also provide a certain amount of adjustment room to adapt to errors and changes in construction, ensuring the accuracy and quality of the connection.

[0046] Furthermore, a limiting member is provided on the support beam 402, and the limiting member is used to limit the high-pressure rotary spray column body 2 to improve the support for the high-pressure rotary spray column body 2. The setting of the limiting member can effectively limit the displacement and deformation of the high-pressure rotary spray column body 2, ensuring that it works in a specified position and state, which helps to improve the stability and reliability of the high-pressure rotary spray column body 2, and reduce the risk of reduced water-stopping effect or structural damage due to displacement. At the same time, the limiting member can also share part of the load from the high-pressure rotary spray column body 2, reduce its own burden, and extend its service life; the limiting member limits the position and movement of the high-pressure rotary spray column body 2, so that it can better withstand external loads and environmental changes and maintain a stable working state.

[0047] Further, such as Figure 4 and Figure 5 As shown, the limiter includes an adjusting bolt 406 threadedly connected to the support beam 402, and the end of the adjusting bolt 406 close to the high-pressure rotary spray column body 2 is connected to a support block 407 through a bearing, and the side of the support block 407 away from the adjusting bolt 406 is in contact with the high-pressure rotary spray column body 2, and the adjusting bolt 406 can support the high-pressure rotary spray column body 2 through the support block 407 to reduce the stability of the tilt of the high-pressure rotary spray column body 2. This adjustable limiter design can flexibly adjust the support strength and position of the high-pressure rotary spray column body 2 according to actual needs, so as to better adapt to different construction conditions and requirements. By adjusting the rotation of the bolt 406, the pressure of the support block 407 on the high-pressure rotary spray column body 2 can be accurately controlled to ensure that it is properly supported and fixed, which helps to improve the accuracy and quality of construction and ensure that the performance of the water-stop curtain meets the design requirements.

[0048] Further, such as Figure 1 and Figure 4As shown, the middle part of the support block 407 is protruding, and the protruding part of the middle part of the support block 407 is inserted between the two connected high-pressure rotary spray column bodies 2. The setting of the protruding part can improve the stability of the connection between the support block 407 and the high-pressure rotary spray column body 2. The design of the protruding part increases the contact and fit between the support block 407 and the high-pressure rotary spray column body 2, thereby improving the firmness and stability of the connection.

[0049] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0050] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the present invention patent.

Claims

1. A foundation pit water-stop construction structure, comprising a foundation pit main body (1), wherein a water-stop curtain is arranged in the foundation pit main body (1), and the water-stop curtain is formed by connecting a plurality of high-pressure rotary spray column main bodies (2) to each other, characterized in that: A reinforcement piece is provided between a plurality of the high-pressure rotary spray column bodies (2), and the reinforcement piece is used to reinforce the high-pressure rotary spray column body (2); The reinforcement member comprises a plurality of bored piles (3), the plurality of bored piles (3) are all arranged in the foundation pit body (1), and each bored pile (3) is in contact with the high-pressure jet spray column body (2); The reinforcement member further comprises a reinforcement component (4), wherein the reinforcement component (4) is arranged between a plurality of high-pressure jet spray column bodies (2) and a plurality of bored piles (3); The reinforcement assembly (4) comprises four angular support columns (401), each of which is arranged in the foundation pit body (1), and the angular support columns (401) are in contact with the bored piles (3); Four support beams (402) are provided between the four corner support columns (401), and the four support beams (402) are used for reinforcing the four corner support columns (401); A connecting piece is provided between the end of the support beam (402) and the angle support column (401), and the connecting piece is used to realize the connection between the support beam (402) and the angle support column (401); The connecting member comprises a connecting seat (403) fixedly mounted on the side of the angle support column (401); a connecting groove (404) is provided on the top of the connecting seat (403); a connecting block (405) is inserted into the connecting groove (404); and the connecting block (405) is fixedly connected to the end of the support beam (402).

2. A foundation pit water-stopping construction structure according to claim 1, characterized in that: A limiting member is provided on the support beam (402), and the limiting member is used to limit the position of the high-pressure jet spray column body (2).

3. A foundation pit water-stopping construction structure according to claim 2, characterized in that: The limiting member comprises an adjusting bolt (406) threadedly connected to the support beam (402); one end of the adjusting bolt (406) close to the high-pressure jet spray column body (2) is connected to a support block (407) via a bearing; a side of the support block (407) away from the adjusting bolt (406) is in contact with the high-pressure jet spray column body (2).

4. A foundation pit water-stopping construction structure according to claim 3, characterized in that: The middle portion of the support block (407) is protruding, and the protruding portion of the middle portion of the support block (407) is inserted between two connected high-pressure jet column bodies (2).

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