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Pile-anchor supporting foundation pit deepening and reinforcing supporting structure and construction method thereof

A technology of supporting structure and construction method, which is applied in basic structure engineering, excavation, sheet pile wall, etc., can solve problems such as insufficient supporting strength, achieve good benefits, reduce cost, and strengthen bearing capacity.

Pending Publication Date: 2020-12-15
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a pile-anchor support foundation pit deepening and reinforcement support structure with better reinforcement effect and its construction method, so as to solve the problem of pile-anchor support system caused by the excavation of foundation pit deepening. The problem of insufficient strength

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  • Pile-anchor supporting foundation pit deepening and reinforcing supporting structure and construction method thereof
  • Pile-anchor supporting foundation pit deepening and reinforcing supporting structure and construction method thereof
  • Pile-anchor supporting foundation pit deepening and reinforcing supporting structure and construction method thereof

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Embodiment Construction

[0022] First of all, it needs to be specially explained that although the long and short pile support system is well known in the prior art, it is a foundation pit support method, and what the present invention proposes is a pile-anchor support foundation pit deepening and reinforcement The support structure is a reinforcement method for foundation pit support. The difference is that the premise is to increase the depth of the excavation and reinforce the structure. The original support piles are used to insert long support piles between the piles. The premise is different and the fields involved are different.

[0023] refer to figure 1 with figure 2 , the embodiment of the present invention provides a pile-anchor support foundation pit deepening and reinforcement support structure, which mainly includes the original support pile 1 in the original pile-anchor support system, the waist beam 3 arranged on the original support pile 1 and the The original prestressed anchor cab...

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Abstract

The invention relates to a pile-anchor supporting foundation pit deepening and reinforcing supporting structure and a construction method thereof. The reinforcing supporting structure comprises original supporting piles (1), waist beams (3) and original pre-stressed anchor cables which are in an original pile-anchor supporting system, newly-added long supporting piles (2), newly-added pre-stressedanchor cables (4) and newly-arranged crown beams (5); the newly-added long supporting piles (2) are arranged between the original supporting piles (1) and penetrate through the whole foundation pit by a new excavation depth, and the tops of the newly-added long supporting piles (2) are flush with the tops of the original supporting piles (1) and are connected into a whole in a pouring mode through the newly-arranged crown beams (5); and the newly-added pre-stressed anchor cables (4) are distributed between the new piles and the old piles, and the outer ends of the newly-added pre-stressed anchor cables (4) are fixed to the waist beams (3). A reinforcing mode that the long supporting piles and the pre-stressed anchor cables are inserted between the original supporting piles is adopted, thewaist beams, the anchor cables and the newly-arranged crown beams are connected to form a unified whole with an original supporting structure, the overall rigidity and the cooperative deformation capacity of an enclosure structure can be effectively improved, and the bearing capacity of the enclosure structure is enhanced.

Description

technical field [0001] The invention relates to the technical field of foundation pit engineering support and reinforcement, in particular to a pile anchor support foundation pit deepening and reinforcement support structure and a construction method thereof. Background technique [0002] With the rapid development of economy and urbanization, less and less construction land is available. In order to meet the various needs of people's living and working space, the utilization and development of urban underground space has become a hot spot that more and more people pay attention to. The scale and depth of foundation pit excavation are getting bigger and bigger, followed by the difficulty of foundation pit support and the increase of the complexity of the surrounding environment. When the foundation pit support structure has been or will be completed, but due to the modification of the design plan, such as the design of the basement layer increase, the foundation pit needs to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D5/22E02D5/76
CPCE02D5/22E02D5/76E02D17/04
Inventor 郭楠徐希伟杨校辉朱彦鹏侯喜楠
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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