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Method for constructing underground structure by combining light-shade excavation with ground matter removal avoidance

An underground structure, combined with the technology, applied in the direction of underwater structures, infrastructure engineering, buildings, etc., can solve the problems of limited structural functions, many structural blocks, and large amount of structural removal, so as to reduce waste and save project investment. , reduce the effect of demolition

Inactive Publication Date: 2018-07-17
CHINA RAILWAY FIRST GRP SECOND ENG CO LTD
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Problems solved by technology

In this way, the structure is divided into many blocks, and the amount of structure breaking is large. In the end, the connection between open and dark digging may partially limit the structural function

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  • Method for constructing underground structure by combining light-shade excavation with ground matter removal avoidance
  • Method for constructing underground structure by combining light-shade excavation with ground matter removal avoidance
  • Method for constructing underground structure by combining light-shade excavation with ground matter removal avoidance

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0031] According to an embodiment of the present invention, a method for constructing an underground structure using open and concealed excavation combined with aboveground objects to avoid demolition and relocation includes the following steps:

[0032] S1: Determine the construction scope and demarcation point of the open and concealed excavation of the underground structure;

[0033] S2: Open-cut construction, specifically including:

[0034] S2.1: Construction of retaining piles in open ...

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Abstract

The invention discloses a method for constructing an underground structure by combining light-shade excavation with ground matter removal avoidance. The method comprises the following steps: light-shade excavation construction ranges and boundary points of the underground structure are determined; light excavation is performed; primary support construction and branch excavation are performed on nodes reserved in light excavation; primary supports are removed; and a waterproof system and a secondary lining are constructed. Compared with a full-light excavation method, the method reduces removal, and guarantees the engineering progress; meanwhile, the house removal expense is hundred million Yuan, so that the engineering investment is saved; the underground structure system is kept invariable without influencing ground functions; the removal quantity is reduced; the construction garbage and the resource waste are reduced; and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of building underground structures, in particular to a method for building underground structures by using open and concealed excavation combined with ground objects without demolition. Background technique [0002] During the construction of subway stations, if conditions permit, the open-cut method is generally used to reduce the project cost and reduce the difficulty of construction. In the case of surface buildings that cannot be demolished, a combination of open and hidden excavation can be used for the construction of subway stations. In the traditional method, there are two ways to combine open and concealed excavation: first, divide the station into sections according to the obstacle mileage, and adopt the full-section underground excavation method for the corresponding mileage of the building. This method has a large workload for underground excavation, and the construction cost is high. Second, o...

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Application Information

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IPC IPC(8): E02D29/045
CPCE02D29/045
Inventor 谢保良王宏斌刘久安杨静范普刚祁昌俊李玉宏
Owner CHINA RAILWAY FIRST GRP SECOND ENG CO LTD
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