Integrated design construction method of flexible compound fabricated support and underground structure

Abstract

The invention relates to an integrated design construction method of a flexible compound fabricated support and an underground structure. The method comprises the following steps that (1) side walls of the fabricated support structure are constructed; (2) a first layer of supporting system is installed; (3) earth excavation is carried out, and high polymers are poured to joints of the side walls of the fabricated support structure; (4) internal fabricated supporting systems are installed layer by layer; (5) excavation is carried out layer by layer and section by section sequentially in the vertical direction, and the step (3) and the step (4) are carried out repeatedly till the foundation base elevation is met; (6) a foundation pit of the underground space is sealed; and (7) the top of thefoundation pit is sealed, separated application of internal space capacities is improved, and accordingly construction is completed. The established underground space integrated structure has the various advantages of quick and convenient construction, recoverability, superior economic and environmental protection indexes and the like, the novel method which is safe, reliable, capable of achieving efficient recovery and superior in economic and environmental protection index is provided for construction of underground pipe galleries, underground space utilization and the like, and the application and development prospects are considerable.

Description

technical field [0001] The invention belongs to the field of excavation and support construction of underground infrastructure such as civil engineering, water conservancy and municipal administration, and in particular relates to an integrated design and construction method of flexible composite assembly support and underground structure. Background technique [0002] Since the founding of New China, my country's civil engineering, water conservancy, municipal and other underground infrastructure construction has achieved world-renowned achievements. In the process of underground space development and utilization, the construction procedures often adopted are slope support or foundation pit support measures first, and then the construction of the underground space structure is carried out to ensure the safety and stability of the underground engineering construction process and the surrounding environment during this period, that is, The construction cost and construction p...

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Problems solved by technology

At present, there is no relevant report on the integrated structure of flexible composite assembled recyclable support and underground space development in China.

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