Water discharge and drainage system and construction method adopting basement bottom plate water buoyant force releasing method

Abstract

The invention discloses a water discharge and drainage system and a construction method adopting a basement bottom plate water buoyant force releasing method. According to the water discharge and drainage system, crisscross netty water drainage blind ditches are dug in undisturbed soil or overbreak filling below a basement bottom plate, a continuous plastic protective screen is laid in each water drainage blind ditch, plastic blind ditch pipes are buried in the water drainage blind ditches provided with the corresponding plastic protective screens in a laid mode and covered with gravel drainage layers, water discharge openings of the plastic blind ditch pipes communicate with a water collection well, and the water collection well is connected with a water discharge device through a transparent water pipe; and polyethylene protective-film partition slurry layers are laid on the gravel drainage layers, concrete cushions are poured on the polyethylene protective-film partition slurry layers, and the basement bottom plate is arranged on the concrete cushions. According to the water discharge and drainage system and the construction method adopting the basement bottom plate water buoyant force releasing method, the water level under the basement bottom plate can be lowered, and the buoyant force exerted on the basement bottom plate is released and attenuated. Accordingly, the effect that the basement bottom plate is always in the dynamic equilibrium state can be ensured.

Description

technical field [0001] The invention relates to a basement bottom plate releasing water buoyancy drainage system and a construction method, belonging to the technical field of high-rise building underground engineering construction. Background technique [0002] The traditional anti-floating methods of the basement floor, such as the uplift pile, the uplift anchor method and the weight method, all use force balance and water stop to resist the buoyancy of groundwater. Although the above-mentioned method has a reasonable design concept and simple maintenance in the later stage, its engineering cost accounts for about 20% to 50% of the underground structure cost, and the cost investment is relatively large, and a large number of high-energy-consuming materials are used, which has a huge impact on environmental pollution and consumes a lot of resources. , the construction speed is slow, and the requirements for crack resistance, corrosion resistance and bending moment resistanc...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a drainage system and construction method for basement floor to release water buoyancy method, so as to solve the problem that the construction cost of ba

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