Pressure reduction anti-floating structure for underground building/structure and construction method

Abstract

The invention relates to a pressure reduction anti-floating structure specifically used for an underground building / structure and a construction method. The pressure reduction anti-floating structureis composed of drainage equipment, a drainage pipeline and a pressure reduction control module, the underground water level is controlled in the construction period of an underground building / structure, the drainage equipment is started or stopped according to the underground water condition in the operation period, buoyancy is reduced, and therefore anti-floating stability of the underground building / structure is achieved. The pressure reduction anti-floating structure specifically used for the underground building / structure and the construction method which are provided have the beneficial effects that the underground building / structure does not need to be additionally provided with a dewatering well or other anti-floating measures, the structure is safe and reliable, the construction progress is accelerated, and the construction cost is saved.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and more specifically relates to a decompression and anti-floating structure for underground buildings / structures and a construction method. Background technique [0002] With the continuous increase of underground buildings, the problems of groundwater control and anti-floating are becoming more and more prominent. At present, the common practice is to use precipitation wells around underground buildings / structures for precipitation. Not only the construction cost is high, the construction period is prolonged, and the precipitation efficiency is also low. During the operation of the building, the groundwater level is often lower than the anti-floating water level. In order to meet the anti-floating stability of the building, it is generally necessary to increase the ballast or install anti-floating components, which will greatly increase the construction cost and prolong the cons...

AI Technical Summary

Problems solved by technology

[0004] The patent of the present invention provides a method for underground buildings / structures to solve the problems of precipitation during the construction period and anti-floating during the operation period. This construction scheme is more suitable for the case where the permeability coefficient of the soil layer is low and the anti-buoyancy of the building structure is slightly smaller than the buoyancy

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