Construction method for special underground continuous wall

A construction method and a special technology, applied in excavation, foundation structure engineering, construction, etc., can solve the problems of groove formation and wall formation without precedent, so as to ensure smooth construction, good water sealing effect and integrity, and increase overall rigidity Effect

Inactive Publication Date: 2009-07-15
LONGYUAN CONSTR GROUP
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0004] According to the existing ground wall construction technology, there is no precedent and similar experience for groove formation and wall formation in places with existing obstacles such as deep steel pipe piles

Method used

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  • Construction method for special underground continuous wall
  • Construction method for special underground continuous wall
  • Construction method for special underground continuous wall

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Embodiment Construction

[0019] The invention relates to a construction method of a special underground continuous wall. The underground continuous wall is formed by connecting multiple walls. In a preferred embodiment, the underground continuous wall is a circular arch structure. At least one wall structure in the underground continuous wall retains obstacles, such as steel pipe piles or steel piles. In this embodiment, there are six steel pipe piles 2 retained in the four walls 1, such as figure 1 shown.

[0020] Before construction, the actual position of the existing steel pipe piles in the deep layer is measured first, and according to the actual position of the existing steel pipe piles in the deep layer, the groove section of the ground wall is divided, and the reinforcement range of the groove wall is determined. When dividing the ground wall groove section, make the two sides of the collision pile groove section be normal underground wall groove sections. That is, the bumper pile groove sec...

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Abstract

The invention provides a method for constructing a special underground continuous wall. The underground continuous wall comprises a wall body with indelible embedded barriers, wherein the wall body with the indelible embedded barriers is positioned between barrier-free wall bodies. The construction method comprises the following steps: (a) the normal barrier-free wall bodies on the left and the right sides of the wall body with the embedded barriers are constructed; (b) the operation of groove wall reinforcement is carried out on the grooving area of the wall body with the embedded barriers, and a reinforced structure and the barrier-free wall bodies on both sides form a relatively enclosed area; and (c) special grooving technological construction is carried out in the relatively enclosed wall body area. By adopting the method, the indelible barriers in the wall body of the underground wall can work together with the underground wall, thereby guaranteeing the integrality and the constructional feasibility of the underground continuous wall used as a permanent structure or a space enclosing structure, shortening man-hour, and saving the production cost.

Description

technical field [0001] The invention relates to a construction method of a special underground continuous wall, in particular to a method for forming trenches and forming walls without avoiding obstacles during the construction of the underground continuous wall. Background technique [0002] In the traditional underground diaphragm wall construction process, obstacles are not allowed in the wall structure. But in some cases, the presence of these obstacles may not be avoided. [0003] For example, in the deep foundation pit construction of the main building of the Shanghai World Financial Center Building, the foundation pit enclosure structure is designed as a circular enclosure structure with a diameter of 100m, without support, and the circular arch effect principle is used to make the depth reach 18-26m The enclosure structure maintains the characteristics of high overall rigidity and small radial deformation. Due to the original design of the project base, 2800 steel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D17/20
Inventor 向海静钱水江罗玲丽赖野民黄沛
Owner LONGYUAN CONSTR GROUP
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