Open caisson bottom sealing and water stopping structure

Abstract

The utility model discloses an open caisson bottom sealing water stop structure which comprises an open caisson structure, an undisturbed soil layer is arranged at the bottom of the open caisson structure, bottom sealing concrete is arranged on the upper portion of the undisturbed soil layer, a water stop device is embedded in the bottom sealing concrete, and a plain concrete cushion layer is arranged above the bottom sealing concrete. The water stopping device comprises a water catchment seat, a plurality of water stopping assemblies are connected to the water catchment seat in a penetrating mode in the circumferential direction, connecting holes are formed in the connecting positions of the water catchment seat and the water stopping assemblies, the water stopping assemblies gather circumferential water into the water catchment seat, a water collecting tank is arranged above the water catchment seat, and the water collecting tank is communicated with the water catchment seat. The water collecting tank is communicated with the water catchment seat, an opening is formed in the top of the water collecting tank, a cover plate is detachably connected to the opening through screws, and a water suction pump can be placed in the opening. And the subsequent construction quality and efficiency are influenced.

Description

Technical Field

[0001] This utility model relates to the field of caisson bottom sealing technology, and in particular to a caisson bottom sealing and water-stopping structure. Background Technology

[0002] With the rapid development of urbanization, the construction and application of caissons in municipal engineering has become more widespread. Caisson bottom sealing is an important part of caisson engineering. Its main purpose is to seal the bottom of the caisson after it has sunk to the design elevation to prevent groundwater or other fluids from entering the caisson, thereby ensuring the safety and stability of the caisson construction. Due to the complex groundwater conditions in some caissons, dewatering and water-stopping outside the caisson cannot be completely achieved, and water sealing is necessary. Water sealing requires high control, and complete bottom sealing and water-stopping are very difficult to achieve. Moreover, the quality of bottom sealing is low, which affects the construction quality and efficiency of the subsequent caisson cushion layer and structural layer. Therefore, it is necessary to design a caisson bottom sealing and water-stopping structure. Utility Model Content

[0003] The purpose of this utility model is to provide a caisson bottom sealing and water-stopping structure to solve the technical problems in the prior art where the caisson bottom sealing device cannot completely seal the bottom and stop the water successfully, and the sealing quality is low, which affects the efficiency of subsequent construction.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A caisson bottom sealing and water-stopping structure includes a caisson structure with an undisturbed soil layer at the bottom and a bottom sealing concrete layer on top of the undisturbed soil layer. A water-stopping device is embedded in the bottom sealing concrete. A plain concrete cushion layer is located above the bottom sealing concrete, and a reinforced concrete base plate is located above the plain concrete cushion layer. The water-stopping device includes a water collection seat with several water-stopping components circumferentially connected to it. The water collection seat has a connection opening at the connection point between it and the water-stopping components. The water-stopping components collect circumferential water into the water collection seat. A water collection tank is located above the water collection seat and is connected to it. The top of the water collection tank has an opening, and a cover plate is detachably connected to the opening by screws. A water pump can be inserted into the opening.

[0006] The present invention relates to a bottom sealing and water-stopping structure for a caisson, wherein the water-stopping component is a water collection filter pipe, the water collection filter pipe has several water holes in its circumference, and the end of the water collection filter pipe has a plug.

[0007] The present invention relates to a caisson bottom sealing and water-stopping structure, wherein the bottom of the water collection seat is embedded in a portion of the original soil layer so that the bottom of the water collection filter pipe is attached to the surface of the original soil layer.

[0008] The present invention relates to a bottom sealing and water-stopping structure for a caisson, wherein a circular water-stopping steel plate is provided around the circumference of the water collection tank.

[0009] This utility model discloses a bottom sealing and water-stopping structure for a caisson, wherein the water collection tank has several reinforcing bars arranged radially along the upper and lower sides of the circular water-stopping steel plate.

[0010] The present invention relates to a caisson bottom sealing and water-stopping structure, wherein the number of water collection filter pipes is 4-8.

[0011] The present invention relates to a bottom sealing and water-stopping structure for a caisson, wherein the water collection filter pipe is externally fitted with a filter screen.

[0012] The present invention relates to a caisson bottom sealing and water-stopping structure, wherein a sealing ring is provided between the mating surfaces of the water collection tank and the cover plate.

[0013] This utility model discloses a caisson bottom sealing and water-stopping structure. A water-stopping device is placed on the original soil at the bottom of the caisson. The cover is opened, and water is collected in a collection tank through water holes in the drainage filter pipe. A water pump is placed in the collection tank to pump the water out of the caisson. Then, bottom sealing concrete is poured. After the concrete reaches a certain strength, the water pump is removed, the cover is replaced, and a rubber ring is installed between the cover and the collection tank for sealing. The cover and the collection tank are sealed with screws, thus achieving the purpose of water-stopping and bottom sealing. The use of water-stopping components effectively improves the quality and effect of caisson water-stopping and bottom sealing, making subsequent construction of plain concrete foundation and reinforced concrete base slab more convenient and faster. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 For this Figure 1 Schematic diagram of the structure of region A in the middle;

[0017] Figure 3 This is a side view of the structure of this utility model;

[0018] Figure 4 This is a side view of the structural perspective of this utility model.

[0019] In the diagram: 1. Cover plate; 2. Reinforcing bar; 3. Water collection filter pipe; 4. Circular water-stop steel plate; 5. Connecting opening; 6. Water collection seat; 7. Water collection tank; 8. Screw; 9. Original soil layer; 10. Bottom sealing concrete; 11. Reinforced concrete base slab; 12. Plain concrete cushion layer; 13. Caisson structure; 14. Water-stop component; 31. Plug; 32. Water hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] like Figure 1-3 As shown, a caisson bottom sealing and water-stopping structure includes a caisson structure 13. The bottom of the caisson structure 13 has an undisturbed soil layer 9, and the upper part of the undisturbed soil layer 9 has a bottom sealing concrete 10. A water-stopping device is embedded in the bottom sealing concrete 10. A plain concrete cushion layer 12 is provided above the bottom sealing concrete 10, and a reinforced concrete base plate 11 is provided above the plain concrete cushion layer 12. The water-stopping device includes a water collection seat 6, a plurality of water-stopping components 14 are circumferentially connected to the water collection seat 6, and a connection opening 5 is provided at the connection between the water collection seat 6 and the water-stopping components 14. The water-stopping components 14 collect circumferential water into the water collection seat 6. A water collection tank 7 is provided above the water collection seat 6 and is connected to the water collection seat 6. The top of the water collection tank 7 has an opening, and a cover plate 1 is detachably connected to the opening by screws 8. A water pump can be inserted into the opening.

[0022] It should be noted that at the beginning of use, there may be some residual water on the top of the original soil layer 9. The water is collected into the water collection tank 7 through the water-stop component 14, and then the water is pumped out. The water-stop device is then poured into the bottom sealing concrete 10. Once the bottom sealing concrete has reached a certain strength, the water pump is removed, the cover plate is put on, and a rubber ring is installed between the cover plate and the water collection tank for sealing. The cover plate and the water collection tank are sealed with screws.

[0023] In a preferred embodiment, the water-stopping component 14 is a water-collecting filter pipe 3, which has a plurality of water holes 32 around its circumference and a plug 31 at its end. This structure makes it easier for water from all directions to flow in.

[0024] In a preferred embodiment, the bottom of the water collection seat 6 is partially embedded in the undisturbed soil layer 9 so that the bottom of the water collection filter pipe 3 is attached to the surface of the undisturbed soil layer 9. This structure can remove as much water as possible from the surface of the undisturbed soil layer 9.

[0025] In a preferred embodiment, the water collection tank 7 is provided with a circular water-stop steel plate 4 around its circumference, which can effectively prevent water from seeping out from the circumference of the water collection tank 7 and improve the waterproof performance.

[0026] In a preferred embodiment, the water collection tank 7 has several reinforcing bars 2 arranged radially around the upper and lower sides of the circular water-stop steel plate 4, which makes the water-stop device more stable in the concrete.

[0027] In a preferred embodiment, the number of water collection filter pipes 3 is 4-8, which can ensure the overall strength and make the water collection effect better.

[0028] In a preferred embodiment, the water collection filter pipe 3 is fitted with a filter screen on the outside. This structure can prevent excessive solid impurities from clogging the water holes and makes it easier for the water pump to remove the accumulated water.

[0029] In a preferred embodiment, a sealing ring is provided between the mating surfaces of the water collection tank 7 and the cover plate 1, and this structure achieves the purpose of stopping water and sealing the bottom.

[0030] Specifically, in use, the device is first lowered into place on the original soil layer 9, the cover plate 1 is opened, and water is collected into the water collection tank 7 through the water hole 32 on the drainage filter pipe 3. The water pump is placed into the water collection tank 7 to pump the water out of the caisson. Then, the bottom sealing concrete 10 is poured. After the concrete reaches a certain strength, the cover plate 1 and the water collection tank 7 are sealed with screws 8. A rubber ring is installed between the cover plate 1 and the water collection tank 7 to achieve the purpose of water-stopping and bottom sealing. The water-stopping component 14 effectively improves the quality and effect of the caisson bottom sealing, making the subsequent construction of the plain concrete cushion layer 12 and the structural layer, i.e., the reinforced concrete base slab 11, more convenient and faster.

[0031] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A caisson bottom sealing and water-stopping structure, characterized in that, The structure includes a caisson structure (13), the bottom of which has an undisturbed soil layer (9), and a bottom sealing concrete (10) on top of the undisturbed soil layer (9). A water-stopping device is embedded in the bottom sealing concrete (10). A plain concrete cushion layer (12) is above the bottom sealing concrete (10), and a reinforced concrete base slab (11) is above the plain concrete cushion layer (12). The water-stopping device includes a water collection seat (6), which is circumferentially connected to the bottom sealing concrete (13). A plurality of water-stopping components (14) are connected. The water-collecting base (6) and the water-stopping components (14) are connected by a connection opening (5). The water-stopping components (14) collect circumferential water into the water-collecting base (6). A water-collecting tank (7) is provided above the water-collecting base (6). The water-collecting tank (7) is connected to the water-collecting base (6). The top of the water-collecting tank (7) has an opening. A cover plate (1) is detachably connected to the opening by screws (8). A water pump can be placed in the opening.

2. The caisson bottom sealing and water-stopping structure according to claim 1, characterized in that: The water-stopping component (14) is a water-collecting filter pipe (3), which has a plurality of water holes (32) around its circumference and a plug (31) at its end.

3. The caisson bottom sealing and water-stopping structure according to claim 2, characterized in that: The bottom of the water collection seat (6) is embedded in a portion of the original soil layer (9), so that the bottom of the water collection filter pipe (3) is attached to the surface of the original soil layer (9).

4. The caisson bottom sealing and water-stopping structure according to claim 1, characterized in that: The water collection tank (7) is provided with a circular water-stop steel plate (4) around its circumference.

5. The caisson bottom sealing and water-stopping structure according to claim 4, characterized in that: The water collection tank (7) has several reinforcing bars (2) arranged radially on the upper and lower sides of the circular water-stop steel plate (4).

6. The caisson bottom sealing and water-stopping structure according to claim 2, characterized in that: The number of water collection filter pipes (3) is 4-8.

7. The caisson bottom sealing and water-stopping structure according to claim 2, characterized in that: The water collection filter pipe (3) is fitted with a filter screen on the outside.

8. The caisson bottom sealing and water-stopping structure according to claim 1, characterized in that: A sealing ring is provided between the mating surfaces of the water collection tank (7) and the cover plate (1).

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