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Construction method of using down-top method for excavating earthworks in top-down construction

A construction method and earthwork technology, which is applied in excavation, infrastructure engineering, construction, etc., can solve the problems of site pollution and low excavation rate, and achieve the effect of saving construction costs, saving costs, and widely promoting application prospects

Active Publication Date: 2014-11-05
CHINA CONSTR FOURTH ENG DIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the problems of low excavation rate and serious site pollution during the reverse construction of the podium part

Method used

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  • Construction method of using down-top method for excavating earthworks in top-down construction
  • Construction method of using down-top method for excavating earthworks in top-down construction

Examples

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Embodiment

[0016] This example takes the R&F Yingkai Plaza project located in the core business district of Zhujiang New Town in Guangzhou as an example. The land area of ​​the project is 7942m2, with a total construction area of ​​184204 m2, including 151573 m2 above ground, 32631 m2 underground, 65 floors above ground, 5 floors underground, skirting The depth of the foundation pit of the house is 24.45m, the depth of the foundation pit in the core tube is 30.9m, and the total height of the tower is 296.5m. The main structure is a frame-core tube structure, the core tube is a reinforced concrete structure, and the outer tube structure is a vertical support system composed of 16 steel tube concrete columns in the basement and 20 steel tube concrete columns on the ground; the horizontal structure of the outer frame basement adopts a reinforced concrete structure, and the outer frame The horizontal structure on the ground adopts the steel girder profiled steel structure. The basement ado...

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Abstract

The invention discloses a construction method of using a down-top method for excavating earthworks in top-down construction. In construction of underground works, a temporary ramp enabling construction vehicles to enter an underground working plane is constructed first; excavation and outward transport of underground earthworks are carried out by the construction vehicles in order to improve excavation efficiency of the earthworks in top-down construction. Down-top excavation of the earthworks in top-down construction can be realized by the aid of a perpetual drive way, and accordingly excavation is accelerated, the defect of lifting massive soil in top-down construction is overcome, and costs on erection and demolition of foundation pit supporting piles are saved. By the construction method, construction period is effectively shortened, safety and stability in basement construction are achieved, construction cost is saved, and construction quality is high.

Description

technical field [0001] The invention relates to a construction method for upside-down earthwork and forward excavation, which belongs to the construction technical field of high-rise building underground engineering. Background technique [0002] In the construction of high-rise building underground engineering, the traditional construction method mostly adopts the open slope excavation construction method, but when the construction is carried out in the city center, due to the constraints of the surrounding buildings, the open slope excavation construction method cannot be adopted . In order to solve the above-mentioned problems, at present, in the construction of high-rise buildings, the underground engineering mostly adopts the reverse method construction technology. The so-called upside-down construction method is to carry out the construction of the underground frame from top to bottom layer by layer. In the reverse construction method, the earthwork is generally exca...

Claims

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Application Information

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IPC IPC(8): E02D17/02
Inventor 张明袁茂生文超王皓刘丽丽
Owner CHINA CONSTR FOURTH ENG DIV
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