Construction method for constructing underground garage through cover-excavation reverse construction

Abstract

The invention discloses a construction method for constructing an underground garage through cover-excavation reverse construction, and is applied to the field of underground permanent structures andfoundation engineering in civil engineering. The construction method comprises the following steps that a temporary vertical enclosure structure, a temporary descending / stopping structure and a temporary vertical supporting structure are constructed at a ground elevation position, earthwork is excavated to a bottom elevation position of a top plate of the underground permanent structure, the top plate of the underground permanent structure is constructed, an entrance and exit for transporting the earthwork and materials are reserved in the top plate of the underground permanent structure, enclosure is sealed through a fence, other places except the entrance and exit are backfilled with surface layer covering soil, and ground or road restoration is carried out; earth excavation is carried out under the top plate through the entrance and exit, net hanging and spray protection are carried out on the surface of the temporary vertical enclosure structure, the underground permanent structureand a waterproof structure are constructed, and construction of the underground permanent structure and the waterproof structure of each layer is completed through circulation; and a parking system,a garage matching system and garage ancillary facilities are installed and debugged in the completed underground permanent structure.

Description

technical field [0001] The invention relates to a construction method for constructing an underground garage by cover-excavation and reverse operation, which is applied to the fields of underground permanent structures and foundation engineering in civil engineering. Background technique [0002] With the rapid development of China's urban construction and the improvement of people's living standards, the number of cars has also increased significantly, resulting in more and more difficult parking problems, especially in urban core areas and old communities, where buildings are densely packed and There are few open spaces and the land is very tight. Therefore, it is necessary to open up underground spaces such as between buildings, under green spaces, and under roads, and build underground three-dimensional parking garages to solve the problem of difficult parking. [0003] The development of underground space will face the problem of deep foundation pit engineering. The con...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method for constructing an underground garage by cover-excavation and reverse construction, so as to solve the problems of tight land use, long time occupation of the site, and great influence on the surrounding area

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