Drainage device for seepage of joints in deep foundation pit support structure and construction method of drainage device

A technology of enclosure structure and construction method, which is applied in basic structure engineering, water conservancy engineering, underwater structures, etc., can solve the problems of leakage, high cost, low construction efficiency, etc., to speed up construction progress, ensure construction quality, The effect of facilitating the construction of the structure

Active Publication Date: 2018-01-05
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are costly, low in construction efficiency, and leakage problems still occur

Method used

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  • Drainage device for seepage of joints in deep foundation pit support structure and construction method of drainage device
  • Drainage device for seepage of joints in deep foundation pit support structure and construction method of drainage device
  • Drainage device for seepage of joints in deep foundation pit support structure and construction method of drainage device

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Experimental program
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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] refer to figure 1 , shows a schematic plan view of the water seepage drainage device at the seam of the deep foundation pit enclosure structure of the present invention. refer to figure 2 ,shown figure 1 Sectional view of A-A in Fig. refer to image 3 ,shown figure 1 Sectional view of B-B in middle. combine Figure 1 to Figure 3 As shown, the enclosure structure 10 is formed by splicing a plurality of structural units, and a seam 11 is formed at the joint of two adjacent structural units, and the problem of water seepage often occurs at the joint 11 . The bottom of the deep foundation pit is provided with a floor structure 20 vertically connected to the enclosure structure 10 and arranged laterally. In this embodiment, the enclosure structure 10 is an underground continuous wall. The floor structure 20 includes: the undisturbed...

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Abstract

The invention relates to a drainage device for seepage of joints of a deep foundation pit support structure and a construction method of the drainage device. The support structure is formed by splicing multiple groove sections. The spliced position of every two adjacent groove sections forms the joint. The drainage device comprises vertical flow guide structures, transverse flow guide structures and precipitation wells, wherein the vertical flow guide structures are embedded into the support structure and arranged along the joints, and the vertical flow guide structures communicate with the joints; the transverse flow guide structures are embedded into a bottom plate structure of a deep foundation pit and communicates with the vertical flow guide structures; and the precipitation wells communicate with the transverse flow guide structures and are located in the deep foundation pit. According to the drainage device, it can always be guaranteed that the support structure is free of wet stains, a pit bottom is free of water accumulation, structural construction is facilitated, and the safety and stability of the deep foundation pit are guaranteed; and in this way, in the constructionprocess of the deep foundation pit, the risk of seepage of the joints of the support structure is lowered, the construction quality of the work in the deep foundation pit is guaranteed, and the construction progress is accelerated.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a water drainage device and a construction method for water seepage at joints of a deep foundation pit enclosure structure. Background technique [0002] In recent years, as an important form of enclosure structure in deep foundation pit engineering, underground diaphragm wall has been widely used in the field of rail transit engineering construction in various cities in my country. With the expansion of rail transit station space, the lines in the city are intricate, and the depth of the underground diaphragm wall is getting deeper and deeper. The joint technology of the structural unit of the underground diaphragm wall has not been innovated, and the construction period of a station is also very tight. The cost of seam plugging during excavation is greatly increased. [0003] In the prior art, a plurality of structural units are constructed and joined together to form an u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D29/16E02D19/10
Inventor 董蛟震李乐郝帅
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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