An automatic pressure-stabilizing drainage anti-floating structure

Abstract

The invention discloses an anti-floating structure capable of automatically stabilizing pressure and draining. The anti-floating structure comprises a foundation bearing stratum, high-permeability geotechnical cloth, a pervious concrete cushion, a special-shaped polymer water collecting sheet, a foundation slab and a common drain board which are sequentially arranged from bottom to top; an automatic pressure stabilizing and draining device is arranged in the foundation slab; the automatic pressure stabilizing and draining device comprises a valve, a drain pipe, an overhaul valve and base water pressure monitoring equipment; and the drain pipe is connected with the special-shaped polymer water collecting sheet. Due to the adoption of the technology, underground water reaches a basement foundation slab after passing through the high-permeability geotechnical cloth and the pervious concrete cushion, when the water pressure borne by the basement foundation slab reaches a preset value, the automatic pressure stabilizing and draining device is automatically started to rapidly drain the underground water through the drain pipe; and when the water pressure of the slab is reduced to be smaller than the preset value, the automatic pressure stabilizing and draining device is automatically stopped to ensure the dynamic balance of the water pressure under the slab, so that the anti-floating problem of an underground structure is effectively solved, and meanwhile, the anti-floating stability of the basement foundation slab is improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to an automatic pressure-stabilizing drainage anti-floating structure. Background technique [0002] With the development of the domestic economy and the acceleration of urbanization, problems such as urban living space congestion, traffic jams, and environmental degradation have become increasingly prominent. [0003] At present, the development and utilization of large-scale underground space has become the main trend of urban development. The superstructure load of large-scale underground projects is generally small, and the underground hydrogeological conditions are complex, so the problem of anti-floating is particularly prominent. The traditional anti-floating method is to solve the problem of anti-floating of underground buildings through self-weight anti-floating or setting anti-floating devices such as anti-floating piles and anti-floating anchors. [0004] D...

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Problems solved by technology

[0004] Due to the relatively short development history of urban underground space resources in my country, many designers are not clear about the buoyancy mechanism of underground structures, lack detailed and reliable engineering geological and hydrogeological data, and the current theoretical methods of underground structure design are still imperfect, resulting in In engineering design, there are often two trends, such as excessively high anti-floating water level (insufficient economy) or insufficient estimation of anti-floating water level (insufficient safety).

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