Underground structure leakage water comprehensive treatment construction structure

Abstract

The underground structure leakage water comprehensive treatment construction structure comprises an external enclosure main body and an internal structure main body, a plurality of grouting pipes are arranged on the structure main body, the grouting pipes are arranged in rows and columns, and the outer ends of the grouting pipes extend between the inner side of the enclosure main body and the outer side of the structure main body; and the inner end of the grouting pipe extends to the inner side of the structure main body. The device has the beneficial effects that the structure is simple, and the device is suitable for underground multi-layer structures rich in underground water; the water blocking and plugging effect is good, the time for repairing structural quality defects and plugging leakage water is shortened, and the risk of repeated plugging of the structure is reduced; the cost of cement slurry is far lower than that of chemical slurry, and the engineering cost can be greatly reduced.

Description

Technical Field

[0001] This application belongs to the technical field of building construction waterproofing, and specifically relates to a construction structure for comprehensive treatment of seepage and leakage in underground structures. Background Art

[0002] With the rapid development of urban economy, the development of underground space has become the main focus in recent years. Underground projects are becoming more and more complex, and the pressure of risk control is high. The normal open-cut deep foundation pit construction structure is difficult to meet the requirements. With the gradual use of construction methods such as the top-down construction of ultra-deep foundation pit structures, the top-down and bottom-up construction methods, combined with complex and unknown geological and groundwater conditions, the problem of structure seepage and leakage is serious and difficult to be effectively treated.

[0003] For seepage and leakage in underground structures, chemical grouts are generally used for plugging. However, there are limitations in the plugging depth, and it is only used on the surface layer (concrete protective layer) of the structure. Often, the effect is obvious in a short time, but with the deformation of the structure or the vibration of surrounding equipment, the structure will leak again. At the same time, the mechanical properties of the chemical grout after curing are not ideal, and the elasticity is insufficient, resulting in the risk of repeated plugging and uncontrollable costs. Utility Model Content

[0004] The purpose of this application is to provide a construction structure for comprehensive treatment of seepage and leakage in underground structures, which solves the problems of waterproofing and water blocking in underground structures.

[0005] The purpose of this application is achieved through the following technical solutions:

[0006] A construction structure for comprehensive treatment of seepage and leakage in underground structures includes an external retaining main body and an internal structural main body. A number of grouting pipes are provided on the structural main body. The number of grouting pipes is arranged in rows and columns. The outer ends of the grouting pipes extend between the inner side of the retaining main body and the outer side of the structural main body, and the inner ends of the grouting pipes extend to the inner side of the structural main body.

[0007] Further, the retaining main body is a retaining pile structure.

[0008] Further, a waterproof layer is provided on the outer side of the structural main body, and the grouting pipes pass through the waterproof layer.

[0009] Further, a drilling and grouting channel is provided on the structural main body, and the grouting pipes are arranged in the drilling and grouting channel.

[0010] Further, a grouting valve is provided at the inner end of the grouting pipe.

[0011] Further, the grouting pipe is a rigid cement grouting pipe.

[0012] Further, the grouting pipe includes a bottom plate grouting pipe and / or a side wall grouting pipe.

[0013] Furthermore, the bottom plate grouting pipe includes a number of grouting rows. The number of grouting rows includes the first grouting row to the last grouting row arranged in sequence from the middle to both sides, or includes the first grouting row to the last grouting row arranged in sequence from one side to the other side. Each grouting row includes a number of grouting columns. The number of grouting columns includes the first grouting column to the last grouting column arranged in sequence from the middle to both sides, or includes the first grouting column to the last grouting column arranged in sequence from one side to the other side. Each grouting column includes at least one grouting pipe.

[0014] Furthermore, the bottom plate grouting pipe includes a number of grouting rings. The number of grouting rings includes the first grouting ring to the last grouting ring arranged in sequence from the center to the surrounding. Each grouting ring includes a number of grouting pipes that form a complete ring.

[0015] Furthermore, the side wall grouting pipe includes a number of grouting rows. The number of grouting rows includes the first grouting row to the last grouting row arranged in sequence from the bottom to the top. Each grouting row includes a number of grouting columns. The number of grouting columns includes the first grouting column to the last grouting column arranged in sequence from the middle to both sides, or includes the first grouting column to the last grouting column arranged in sequence from one side to the other side. Each grouting column includes at least one grouting pipe.

[0016] Advantages of the present application:

[0017] (1) Simple structure, suitable for multi - layer underground structures with rich groundwater.

[0018] (2) Good water - blocking and plugging effect, shortening the time for repairing structural quality defects and plugging water leakage, and reducing the risk of repeated plugging of the structure.

[0019] (3) The cost of cement slurry is much lower than that of chemical slurry, which can greatly reduce the project cost.

[0020] The main solution of the present application and its various further alternative solutions can be freely combined to form multiple solutions, all of which are the solutions that can be adopted and claimed by the present application; and in the present application, (each non - conflicting option) options can be freely combined with each other and with other options. Those skilled in the art can understand that there are various combinations according to the prior art and common general knowledge after understanding this solution, all of which are the technical solutions to be protected by the present application, and will not be enumerated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic side view (section) of the structure of the present application.

[0022] Figure 2 is a schematic plan view of the structure of the present application.

[0023] Figure 3 is a schematic layout diagram of the bottom plate and side wall grouting pipes of the present application.

[0024] Figure 4 It is a schematic diagram of the arrangement of the side wall grouting pipes in this application (from the middle to both sides).

[0025] Figure 5 It is a schematic diagram of the arrangement of the side wall grouting pipes in this application (from one side to the other side).

[0026] In the figure: 1 - Enclosing main body, 2 - Structural main body, 3 - Waterproof layer, 4 - Drilling grouting channel, 5 - Grouting pipe, 6 - Grouting valve; 101 - Bottom plate grouting pipe, 102 - Side wall grouting pipe, m - n - The grouting pipe at the nth grouting column of the mth grouting row (1 ≤ m ≤ 4, 1 ≤ n ≤ 8). Specific implementation manners

[0027] The following further describes this application in conjunction with specific embodiments and the accompanying drawings.

[0028] Refer to Figure 1 and Figure 2 As shown, a construction structure for comprehensive treatment of seepage and leakage of an underground structure is a method for sealing the water source outside the side wall of the structure. It includes an external enclosing main body 1 and an internal structural main body 2. The enclosing main body 1 is located outside to enclose and support the soil body, and the internal structural main body 2 is used as a building structure. The gap between the enclosing main body 1 and the structural main body 2 is a potential location for seepage and leakage, and the intervals formed by the enclosing main body 1 itself are also potential locations for seepage and leakage.

[0029] A number of grouting pipes 5 are provided on the structural main body 2. The outer ends of the grouting pipes 5 extend to the inside of the enclosing main body 1 and the outside of the structural main body 2, and the inner ends of the grouting pipes 5 extend to the inside of the structural main body 2. Thus, water-blocking grout is injected between the enclosing main body 1 and the structural main body 2 inside the structural main body 2 by using the grouting pipes 5 to fill the gap or interval, ensuring the waterproof effect. A number of grouting pipes 5 are arranged in rows and columns, ensuring multi-point grouting sealing and also facilitating construction for multi-layer underground structures.

[0030] The enclosing main body 1 is a retaining pile structure, and there are intervals between the piles. Then, when grouting and sealing, the intervals between the piles are also sealed. Cement slurry is used for grouting and sealing to quickly fill the gap between the side wall and the retaining piles and cut off the water flow channel. Especially for projects using retaining piles without a cut-off curtain as the enclosing structure, the cement slurry can also penetrate into the gaps between the piles to seal the water source from the source, further enhancing the effect of sealing the structural seepage and leakage.

[0031] The structural main body 2 is a reinforced concrete structure. A waterproof layer 3 is provided on the outside of the structural main body 2, and the waterproof layer 3 improves the waterproof and water-blocking effect of the structural main body 2 itself. A drilling grouting channel 4 is provided on the structural main body 2, and the grouting pipes 5 are arranged in the drilling grouting channel 4, and the grouting pipes 5 penetrate through the waterproof layer 3 to ensure the connection effect of the grouting pipes 5.

[0032] A grouting valve 6 is provided at the inner end of the grouting pipe 5, and the opening and closing of the pipeline can be controlled through the grouting valve 6. If the grouting pipe 5 is a rigid cement grout grouting pipe, then cement grout is introduced through the grouting pipe 5. The cement grout has the effect of plugging and waterproofing, and the cost is low, which can greatly reduce the project budget.

[0033] Reference Figure 3 As shown, the grouting pipe 5 includes a bottom plate grouting pipe 101 and / or a side wall grouting pipe 102, so that waterproof plugging can be carried out for the bottom plate, or for the side wall, or for both the bottom plate and the side wall together.

[0034] The bottom plate grouting pipe 101 includes a number of grouting rows. The number of grouting rows includes the first grouting row to the last grouting row arranged in sequence from the middle to both sides, or includes the first grouting row to the last grouting row arranged in sequence from one side to the other side. Each grouting row includes a number of grouting columns. The number of grouting columns includes the first grouting column to the last grouting column arranged in sequence from the middle to both sides, or includes the first grouting column to the last grouting column arranged in sequence from one side to the other side. Each grouting column includes at least one grouting pipe.

[0035] The bottom plate grouting pipe 101 includes a number of grouting rings. The number of grouting rings includes the first grouting ring to the last grouting ring arranged in sequence from the center to the surrounding. Each grouting ring includes a number of grouting pipes that enclose a complete ring.

[0036] The side wall grouting pipe 102 includes a number of grouting rows. The number of grouting rows includes the first grouting row to the last grouting row arranged in sequence from the bottom to the top. Each grouting row includes a number of grouting columns. The number of grouting columns includes the first grouting column to the last grouting column arranged in sequence from the middle to both sides, or includes the first grouting column to the last grouting column arranged in sequence from one side to the other side. Each grouting column includes at least one grouting pipe.

[0037] Through the regular arrangement and construction of the grouting pipes, such as the arrangement method from the center to the surrounding, or from the middle to both sides, or from one side to the other side, during the grouting construction for leakage treatment, the groundwater channels outside the side wall of the structure are squeezed layer by layer and region by region. Finally, for local leakage, chemical grout can be used for conventional plugging treatment to achieve the comprehensive treatment effect.

[0038] The working process of this application:

[0039] For the bottom plate or side wall of the structure main body, mechanical drilling is carried out. According to the thickness of the structure main body, drill to the outside of the structure and the inside of the retaining structure. A rigid grouting pipe is inserted between the structure main body and the retaining main body. The inner end of the structure is fixed by drilling and a valve is installed, and cement grout (single liquid grout) is injected, and repeated grouting can be carried out.

[0040] First, grout is injected from the middle of the bottom plate to both sides / around, squeezing the groundwater under the bottom plate to both sides / around of the bottom plate. Then, grout is injected layer by layer from the bottommost layer upwards, squeezing the groundwater outside the structure upwards layer by layer to achieve the effect of leak stoppage. Along the longitudinal direction, grouting treatment can be carried out from the middle to both sides, or from one end to the other end.

[0041] The basic example of the present application and its various further alternative examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed by the present application. In the solution of the present application, each alternative example can be arbitrarily combined with any other basic example and alternative example.

[0042] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A comprehensive construction structure for treating seepage and leakage of underground structures, including an external enclosure main body (1) and an internal structural main body (2), characterized in that: A number of grouting pipes (5) are provided on the described structural body (2). The number of grouting pipes (5) is arranged in rows and columns. The outer ends of the grouting pipes (5) extend to the inner side of the retaining body (1) and the outer side of the structural body (2), and the inner ends of the grouting pipes (5) extend to the inner side of the structural body (2). The described grouting pipe (5) includes a bottom plate grouting pipe (101) and a side wall grouting pipe (102).

2. The comprehensive construction structure for treating seepage water of the underground structure according to claim 1, wherein: The described retaining body (1) is a retaining pile structure.

3. The comprehensive construction structure for treating seepage water in the underground structure according to claim 1 or 2, characterized in that: A waterproof layer (3) is provided on the outer side of the described structural body (2), and the grouting pipe (5) penetrates through the waterproof layer (3).

4. The comprehensive construction structure for treating seepage and leakage of the underground structure according to claim 1, characterized in that: A drilling grouting channel (4) is provided on the described structural body (2), and the grouting pipe (5) is arranged in the drilling grouting channel (4).

5. The comprehensive construction structure for treating seepage water in the underground structure according to claim 1, characterized in that: A grouting valve (6) is provided on the inner end of the described grouting pipe (5).

6. The comprehensive construction structure for treating seepage water in an underground structure according to claim 1 or 5, characterized in that: The described grouting pipe (5) is a rigid cement slurry grouting pipe.

7. The comprehensive construction structure for treating seepage and leakage of underground structures according to claim 1, wherein: The described bottom plate grouting pipe (101) includes a number of grouting rows. The number of grouting rows includes the first grouting row to the last grouting row arranged in sequence from the middle to both sides, or includes the first grouting row to the last grouting row arranged in sequence from one side to the other side. Each grouting row includes a number of grouting columns. The number of grouting columns includes the first grouting column to the last grouting column arranged in sequence from the middle to both sides, or includes the first grouting column to the last grouting column arranged in sequence from one side to the other side. Each grouting column includes at least one grouting pipe.

8. The comprehensive construction structure for treating seepage water of the underground structure according to claim 1, characterized in that: The described bottom plate grouting pipe (101) includes a number of grouting rings. The number of grouting rings includes the first grouting ring to the last grouting ring arranged in sequence from the center to the periphery. Each grouting ring includes a number of grouting pipes that enclose a complete ring.

9. The comprehensive construction structure for treating seepage water leakage of the underground structure according to claim 1, characterized in that: The described side wall grouting pipe (102) includes a number of grouting rows. The number of grouting rows includes the first grouting row to the last grouting row arranged in sequence from the bottom to the top. Each grouting row includes a number of grouting columns. The number of grouting columns includes the first grouting column to the last grouting column arranged in sequence from the middle to both sides, or includes the first grouting column to the last grouting column arranged in sequence from one side to the other side. Each grouting column includes at least one grouting pipe.

Images