Rectangular steel boxes for uniform-thickness cement-soil stirring wall and construction method

A cement-soil mixing wall and cement-soil wall technology, which is applied in excavation, foundation structure engineering, construction, etc., can solve the problems of large deformation of foundation pit, low section utilization rate, and low rigidity, so as to reduce water leakage and improve wall Body stiffness, impact reduction effect

Inactive Publication Date: 2019-02-15
SHANGHAI FOUND ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the foundation pit is deep, the general H-shaped steel has low rigidity, which will cause large deformation of the foundation pit, and its use is limited under certain environmental conditions. The utilization rate is also relatively low

Method used

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  • Rectangular steel boxes for uniform-thickness cement-soil stirring wall and construction method
  • Rectangular steel boxes for uniform-thickness cement-soil stirring wall and construction method

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the drawings and embodiments.

[0021] Such as figure 1 As shown, a rectangular steel box used in a cement-soil mixing wall of equal thickness is composed of a rectangular steel box 2, a connecting steel plate 3, a female joint 5, a male joint 4, and the like. A plurality of rectangular steel boxes 2 are connected into a whole by connecting steel plates 3, and inserted into the cement-soil wall 1 to form an underground cement-soil continuous wall, which serves as the enclosure structure of the foundation pit. The connecting steel plates 3 of the adjacent rectangular steel boxes are connected by a female joint 5 and a male joint 4 welded on the connecting steel plates 3 in cooperation. The female and male joints of the rectangular steel box 2 extend the penetration path of groundwater and reduce the leakage of the foundation pit.

[0022] Such as figure 2 As shown, the rectangular steel box 2 is proc...

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Abstract

The invention relates to rectangular steel boxes for uniform-thickness cement-soil stirring wall and a construction method. A plurality of rectangular steel boxes are connected into a whole through connecting steel plates and inserted into a cement-soil wall body, so that an underground cement-soil continuous wall body can be formed and serves as an envelope structure body of a foundation pit; therectangular steel boxes are manufactured through welding, the connecting steel plates are correspondingly welded to both sides of the rectangular steel boxes, female connectors are welded to the connecting steel plates on one side, and male connectors are welded to the connecting steel plates on the other side; and the adjacent connecting steel plates of the rectangular steel boxes are connectedin a matching manner through the female connectors and the male connectors which are welded to the connecting steel plates, the underground water seepage path is extended through the female connectorsand the male connectors of the rectangular steel boxes, and the leakage of water in the foundation put can be reduced. By the adoption of the rectangular steel boxes provided by the invention, the wall body rigidity of the cement-soil stirring wall can be improved; the wall body water-stopping effect can be improved; the deformation of the foundation pit can be reduced; the influence on the surrounding environment can be reduced; and the great economic benefits and social benefits can be achieved.

Description

Technical field [0001] The invention relates to a construction method of an underground engineering foundation pit, in particular to a steel box inserted in a cement-soil mixing wall of equal thickness and a construction method thereof. Background technique [0002] The H-shaped steel inserted in the cement-soil mixing wall is a kind of environmental protection and reliable quality in the construction of deep foundation pits. It has high work efficiency and fast construction speed. After the construction is completed, the core material can be partially recycled, which has good economic benefits. It has obvious advantages in supporting deep foundation pits at a certain depth. However, when the foundation pit is deep, the rigidity of the general H-shaped steel is small, which will cause the deformation of the foundation pit to be larger, and the use is limited under certain environmental conditions. Moreover, the conventional steel-cement-soil mixing wall has a circular cross-secti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 王理想李耀良袁芬
Owner SHANGHAI FOUND ENG GRP
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