Underground space construction method and supporting structure

Abstract

The invention discloses an underground space construction method and a supporting structure and belongs to the technical field of civil building engineering construction. According to the underground space construction method and the supporting structure, a launching shaft and a receiving shaft are firstly constructed, then an enclosing structure and waterproof curtain construction of a whole planned whole underground space are completed, a pipe curtain is constructed to enable a first underground layer to form a waterproof space, a soil body in the pipe curtain is reinforced till the supporting structure is formed, excavation and supporting are carried out till a pipe curtain section is excavated to be through, meanwhile a structural body of the first underground layer is casted, and soil taking openings are reserved when base plate structure slabs of the first underground layer are cast; excavation of a soil body and casting construction of a structure body of a second underground layer are performed through the soil taking openings formed in the base plate structure slabs of the first underground layer after maintenance of the next underground layer of base plate structure slabs is completed, and soil taking openings are reserved when the base plate structure slabs of the second underground layer are cast; the cycle is repeated to perform following construction layer by layer till casting of the base plates of the whole underground space is completed, and accordingly construction of the underground space is completed.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to an underground space construction method and a supporting structure. Background technique [0002] With the acceleration of economic growth and urbanization, the available aboveground space in cities is becoming less and less, and the contradiction between urban development and land resource shortage becomes more prominent. The existing use space of existing buildings is insufficient, and it is necessary to rationally develop and utilize the underground space of existing buildings. In the construction of underground engineering, the open and cut method is generally used for construction. Although the open cut method has the advantages of simple construction, low direct project cost, and high controllability of the construction process, it also has significant shortcomings: First, the open cut method has a great impact on existing facilities. Existing facilities within...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an underground space construction method and support structure to solve the problem that the existing pipe curtain method is not suitable for multi-layer underground space construction in complex environments

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