Construction method for early warning supporting system adjacent to running subway in complex environment

A complex environment, subway technology, applied in excavation, infrastructure engineering, construction, etc.

Active Publication Date: 2017-04-26
CHINA CONSTR SIXTH ENG BUREAU CIVILENG +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This patent discloses the construction method of the "Y" type rock-socketed groove section of the underground diaphragm wall. Plastic concrete piles are installed at the two vertical corners to connect with the cement-soil deep-layer mixing pil

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  • Construction method for early warning supporting system adjacent to running subway in complex environment
  • Construction method for early warning supporting system adjacent to running subway in complex environment

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Embodiment 1

[0029] (1) Carry out two rows of mixing pile support respectively on the inner and outer sides of the connecting wall of the proposed building, and the connecting wall of the proposed building is intersected with the connecting wall 1 of the subway station in operation;

[0030] (2) Building ground connecting wall 2 between described two rows of mixing piles, described building ground connecting wall 2 top surface is lower than ground;

[0031] (3) In the outer soil bodies of the ground connection wall 1 of the subway station and the ground connection wall 2 of the building, high-pressure rotary grouting is used to support a plurality of first high-pressure rotary grouting piles 3 and a plurality of second high-pressure rotary grouting piles 4 respectively, Between two adjacent first high-pressure rotary grouting piles 3, between two adjacent second high-pressure rotary grouting piles 4, and at the junction of the first high-pressure rotary grouting piles 3 and the second high-...

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Abstract

The invention discloses a construction method for an early-warning supporting system adjacent to a running subway in a complex environment. The construction method includes the steps that firstly, two rows of stirring piles are arranged on the inner side and the outer side of a building even wall planned to be built correspondingly for supporting; secondly, the building even wall is built between the two rows of stirring piles; thirdly, supporting of multiple first high-pressure rotary spraying piles and multiple secondary high-pressure rotary spraying piles is adopted on the outer side of a subway station even wall and the outer side of the building even wall correspondingly through high-pressure rotary spraying; fourthly, a sleeve valve tube system is installed at the interface of the outer side of the subway station even wall and the outer side of the building even wall; fifthly, a circle of cap beam is poured on the top of the building even wall; and sixthly, a foundation pit is dug on the inner side of the building even wall in a layered manner. In the digging process of the foundation pit, if a clinometer installed on the subway station even wall sends out a deformation pre-warning signal, a grouting system of the sleeve valve tube system is started immediately till the pre-warning signal is stopped, and then construction is continuously conducted. According to the construction method, stable establishment of the pre-warning supporting system is ensured.

Description

technical field [0001] The invention relates to a construction method for an early warning support system, in particular to a construction method for an early warning support system in a complex environment adjacent to an operating subway. Background technique [0002] With the large-scale construction of urban subways, the safe operation of subway stations has become a subject of increasing concern. The purpose of establishing a good subway environment is to provide a safe and comfortable riding environment. If the proposed building is close to the running subway, and the foundation pit of the proposed building is a special-shaped deep foundation pit at the corner, a safe and reliable early warning support system must be specially established during construction. Once the deformation of the running subway exceeds the allowable value, the early warning support system should be activated immediately. [0003] The Chinese patent with the application number CN200910039944.9 d...

Claims

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Application Information

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IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 王丽梅袁银书王安鑫葛强张振禹
Owner CHINA CONSTR SIXTH ENG BUREAU CIVILENG
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