Method for constructing isolation pile for shield tunnel to go through deformation control of buildings and structures at short distance

A technology of shield tunneling and deformation control, which is applied in building construction, construction, building maintenance, etc., can solve the problems of historical buildings that cannot meet and protect settlement requirements, reduce soil loss, reduce noise, and control settlement Effect

Active Publication Date: 2010-06-30
SHANGHAI TUNNEL ENG CO LTD
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a construction method of isolation piles for shield tunnels passing through buildings (structures) at short distances to co

Method used

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  • Method for constructing isolation pile for shield tunnel to go through deformation control of buildings and structures at short distance
  • Method for constructing isolation pile for shield tunnel to go through deformation control of buildings and structures at short distance

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Embodiment Construction

[0022] Such as figure 1 As shown, it is a schematic flow chart showing the construction method of the shield tunnel passing through the isolation pile controlled by the deformation control of the building (structure) provided by the present invention. The shield tunnel passes through the isolation pile controlled by the deformation control of the building (structure) The construction method is used to control the settlement to protect the historical buildings when the shield tunnel passes through at a short distance. The implementation steps of the isolation pile construction method for the shield tunnel to pass through the building (structure) in a short distance and control the deformation include: pouring reinforced concrete For the force transmission platform, follow the steps of sinking piles to form holes, install reinforcement cages and pour concrete, and perform auxiliary grouting measures.

[0023] In the step of pouring the reinforced concrete force transmission plat...

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Abstract

The invention relates to a method for constructing an isolation pile, in particular to a method for constructing an isolation pile applied for a to go through a shield tunnel for deformation control of historic structures, buildings and structures at short distance; the method is characterized by employing an extension-type pile sinking and pore-forming steps, an outer sleeve and a spiral drill pipe arranged in the outer sleeve are sunk respectively by clockwise and counterclockwise drilling method through a full circle swinging jacketing machine; the middle and outer sleeve rotate counterclockwise, the spiral drill pipe rotates clockwise to take earth out of the outer sleeve and serves as a protective wall for the outer sleeve and assists in double size inter-pile slip casting of cement paste and water glass, thus effectively controlling subsidence caused in the process of constructing the isolation pile and controlling ground subsidence caused when a shield passes through the historic structures and ensuring structure safety of the historic structures.

Description

technical field [0001] The invention relates to an isolation pile construction method, in particular to an isolation pile construction method for controlling the settlement of buildings when the shield tunnel passes through the building (structure) at short distance. Background technique [0002] Due to the complexity of shield tunneling construction technology, the surface settlement of the soil layer above the shield cannot be completely eliminated at present. Especially for historical buildings with high historical value, weak foundation and extremely fragile structure near the shield tunnel construction site, the settlement effect caused by shield tunnel construction will deeply damage the structure of historical ancient buildings. Advanced airtight shield technology still cannot completely eliminate surface subsidence. [0003] At present, most of the simple construction and low cost mixing isolation piles and ordinary cast-in-situ piles are used to block the disturban...

Claims

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Application Information

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IPC IPC(8): E04G23/00E02D5/38
Inventor 杨磊丁志诚黄德中戴仕敏周隽马元晁东辉王金一吴惠明郑宜枫顾沉颖周永习郝亮
Owner SHANGHAI TUNNEL ENG CO LTD
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