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Opposite-pull type foundation pit supporting device

A support device and foundation pit support technology, which is applied in the direction of foundation structure engineering, sheet pile walls, excavation, etc., can solve the problems of low adaptability of anchor support, collapse of foundation pit, cumbersome installation and disassembly, etc. Layer restriction, lower project cost, good regional adaptability

Active Publication Date: 2020-11-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common support structures include steel support and anchor support, among which steel support has disadvantages such as prestress attenuation, easy to fall off, cumbersome installation and disassembly, etc., and is easy to cause safety accidents such as foundation pit collapse; while anchor support is more adaptable Small, it is often difficult to use for soft soil due to insufficient anchoring force, and it cannot be applied when there are obstacles such as underground cables, pipelines, surrounding foundations, and basements

Method used

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  • Opposite-pull type foundation pit supporting device
  • Opposite-pull type foundation pit supporting device

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Embodiment Construction

[0020] The present invention will now be described in further detail in conjunction with the accompanying drawings and embodiments. The support device of the foundation pit of the present invention is obtained by the construction method, so the support device can be obtained by describing the construction method.

[0021] First of all, construct the enclosure structure. It should be noted that although the enclosure structure of the foundation pit is taken as an example of an underground diaphragm wall, it is not limited to this.

[0022] Such as figure 1 , figure 2 As shown, for the rectangular underground diaphragm wall 2, it can be constructed according to the normal underground diaphragm wall. As for the T-shaped underground diaphragm wall 3, it is a conventional underground diaphragm wall structure with convex ends in the middle, and the T-shaped enclosure structure can also improve the deformation resistance of the foundation pit. Arrange the PVC pipe 6 and the pulle...

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Abstract

The invention relates to the technical field of foundation pits, in particular to an opposite-pull type foundation pit supporting device. The opposite-pull type foundation pit supporting device comprises an enclosure structure, an anchoring device anchored on the inner side of the enclosure structure, inhaul cables connected to the anchoring device, transverse supports for supporting the upper part of the enclosure structure, central controllers arranged on the transverse supports, and anchor cable control integrated devices consisting of displacement monitors placed on the anchoring device, wherein the central controllers are connected with the inhaul cables on the two sides, receive data sent by the displacement monitors, evaluate the deformation condition of the foundation pit and automatically adjust the axial force of the inhaul cables. The enclosure structure consists of underground continuous walls. According to the invention, the prestress of the supporting structure can be intelligently adjusted. The foundation pit construction efficiency is greatly improved. The supporting device is good in regional adaptability.

Description

technical field [0001] The invention relates to the technical field of foundation pits, in particular to a pull-type foundation pit supporting device. Background technique [0002] With the development of my country's infrastructure construction, "big", "long" and "deep" foundation pits are constantly emerging. In order to maintain the stability of the foundation pit, support structures are usually used in the foundation pit construction to effectively provide support for the foundation pit force and reduce the unbalanced force of the foundation pit. Common support structures include steel support and anchor support, among which steel support has disadvantages such as prestress attenuation, easy to fall off, cumbersome installation and disassembly, etc., and is easy to cause safety accidents such as foundation pit collapse; while anchor support is more adaptable Small, it is often difficult to use for soft soil due to insufficient anchoring force, etc., and it cannot be appl...

Claims

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Application Information

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IPC IPC(8): E02D17/04E02D5/76
CPCE02D5/765E02D17/04
Inventor 狄宏规王炳龙徐俊胡彪韩学芳宋福贵亓立志周顺华
Owner TONGJI UNIV
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