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Buildings pile underpinning method

A pile foundation underpinning and building structure technology, applied in building construction, construction, building maintenance and other directions, can solve the problems of large traffic impact, inability to implement, high cost, and achieve short construction period, small impact, and project cost saving. Effect

Active Publication Date: 2008-10-29
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This construction method has a long construction period and high cost, and has a great impact on traffic.
In central urban areas with narrow sites around densely built roads, it is often impossible to implement

Method used

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Embodiment Construction

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Abstract

The invention provides a method for replacing the original pile foundation of a building during construction of track traffic or tunnels. In the method, a plate-type extended foundation is added along the orientation of the original pile foundation under the structure of the building, and is used to support the load that is supported by the original pile foundation. The method provided by the invention has little influence on the surrounding environment and the traffic. The method provided by the invention has more advantages in central city zones with heavy traffic in defect of open area, where temporary bridges can not be established. The construction period is short. The available parts of the prior bridges can be fully used. The areas of the foundations of bridges and the foundations of tunnels to be stabilized are overlapped and stabilized synchronously, thus saving the construction cost. Few or no waste is produced, and the method is remarkably friendly to the environment.

Description

Building pile foundation underpinning method technical field The invention relates to a pile foundation underpinning method for a building structure, and more particularly relates to a method for replacing the original pile foundation of a building during rail transit or tunnel construction. Background technique Rail transit and cross-river tunnels pass through various existing structures underground, especially when crossing bridges in operation. Since bridge piers are mostly carried by pile foundations, the pile foundations encountered during shield tunneling must be cleared according to obstacles. Taking Shanghai Rail Transit Line 10 as an example, the subway shield needs to cross the Shajinggang Bridge on Siping Road. The traditional construction methods are: 1. Build a temporary temporary bridge; 2. Change the traffic to the temporary temporary bridge, demolish the old bridge, and pull out the pile foundation; 3. Advance the shield; 4. Build a new bridge and restor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/06E01D22/00E02D27/48
Inventor 黄锦源朱申展
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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