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A construction method for a foundation pit

A construction method and technology for foundation pits, which are applied in basic structure engineering, excavation, construction, etc., can solve the problem of high cost of waterproof concrete, and achieve the effects of convenient pouring, improving connection strength and reducing consumption.

Active Publication Date: 2021-01-29
广东乾兴建设工程有限公司
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  • Description
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Problems solved by technology

[0005] However, the disadvantages in the prior art are: waterproof concrete is required for the waterproofing of support piles, and the cost of waterproof concrete is higher than that of ordinary concrete.

Method used

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  • A construction method for a foundation pit
  • A construction method for a foundation pit
  • A construction method for a foundation pit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, a kind of anti-seepage structure of foundation pit, refer to figure 1 , including a waterproof wall located at the periphery of the foundation pit 1, the waterproof wall includes a support layer 51 and a waterproof layer 50 connected to the support layer 51, in this embodiment, two support layers 51 are provided, and early waterproof layers 50 are respectively provided on both sides.

[0037] A reinforcement edge 510 extends downward from the side of the support layer 51 close to the waterproof layer 50 .

[0038] A support pit 2 is excavated around the foundation pit 1, and a waterproof wall is poured in the support pit 2, and a temporary support assembly 4 is required for concrete pouring of the waterproof wall.

[0039] A kind of temporary support assembly 4, refer to figure 2 , image 3 , the support pit 2 is provided with a temporary support assembly 4, the temporary support assembly 4 includes a pre-embedded groove along the length direction of t...

Embodiment 2

[0046] Embodiment 2, the difference between this embodiment and embodiment 1 is: refer to Figure 4 , the side wall of the embedded groove forms an inclination angle of 8° with the bottom surface.

[0047]After the temporary support plate 40 is pasted on the side wall of the pre-embedded groove, the temporary support plate 40 will form an inclination angle of 8° with the ground, so that the section of the waterproof layer 50 can be T-shaped. The supporting layer 51 is connected more compactly.

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Abstract

The present invention relates to the technical field of anti-seepage water in foundation pits, more specifically, it relates to a construction method for anti-seepage water in foundation pits. Pre-embedded groove, two temporary support plates are arranged on the two side walls of the pre-embedded groove respectively, and waterproof concrete is poured between the two temporary support plates to form a waterproof layer. After the waterproof layer is initially set, the temporary support is removed slab, pour ordinary concrete on both sides of the waterproof layer in the foundation pit to form a support layer, and excavate the foundation pit after the support layer is initially set. It has the advantages of placing water blocking and reducing costs.

Description

technical field [0001] The invention relates to the technical field of foundation pit anti-seepage water, more specifically, it relates to a foundation pit anti-seepage water structure and a construction method thereof. Background technique [0002] The foundation pit is an earth pit excavated at the foundation design position according to the base level and foundation plane size. Before excavation, the excavation plan should be determined according to the geological and hydrological data, combined with the conditions of the nearby buildings, and the waterproof and drainage work should be done well. If the excavation is not deep, the side slope can be used to stabilize the soil slope, and the slope size is determined according to the relevant construction regulations. For those with deep excavation and nearby buildings, the foundation pit wall support method, shotcrete retaining wall method, and large foundation pit even adopt methods such as underground diaphragm wall and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D19/18E02D5/18
CPCE02D5/182E02D17/04E02D19/18E02D2250/0007E02D2250/0023
Inventor 庄楚升庄楚波庄泽涛
Owner 广东乾兴建设工程有限公司
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