Anti-floating design and construction method of waterproof floor of underground garage during heavy rain

Abstract

The present invention relates to the field of design and construction of rainwater buoyancy and pressure relief for underground garage floors, in particular to a design and construction method for the waterproof floor of underground garages during heavy rains, and is characterized in that the following steps are taken: 1. Confirm the conditions for setting rainwater pressure relief wells; 2. Calculation of anti-floating balance of waterproof floor; 3. Calculation of water catchment in underground garage; 4. Design of rainwater pressure relief well; 5. Design of seepage blind ditch; 6. Selection of submersible pump; The invention pre-sets a rainwater buoyancy pressure relief well in the fertilizer tank before backfilling the foundation pit of the underground garage, which can effectively prevent and control the occurrence of nationwide quality problems such as uplift, cracking and water leakage of the waterproof floor caused by the buoyancy of rainwater. Compared with traditional technologies such as anti-floating plate method and drainage pressure limiting method, it saves more than 3 / 4 of the anti-floating cost, and the system is easy to maintain. It can solve the complex construction of the buoyancy pressure relief system under the bottom plate, poor pressure relief and waterproof effect, and difficult construction. and other key technical problems.

Description

technical field [0001] The invention provides an anti-floating design and construction method for the waterproof floor of an underground garage during a rainstorm, which belongs to the intersection field of rainwater and anti-floating design and construction technology for the waterproof floor of an underground garage, and is suitable for no anti-floating fortification requirements, and the foundation bearing layer or the underlying layer It is designed and constructed for the rainwater and floating-proof design and construction of the waterproof bottom plate of the underground garage with weak water-permeable soil. Background technique [0002] At present, my country's underground garages that are not affected by groundwater are all designed as waterproof bottom plates without anti-floating functions. According to investigations, any project where the bearing layer or underlying layer of the underground garage foundation is impermeable soil and is designed as a waterproof f...

AI Technical Summary

Problems solved by technology

The water storage and pressure relief well is set at the water source gushing point on the edge of the emergency pool to solve the problem of insufficient buoyancy resistance of the underground floor structure due to factors such as geological conditions, groundwater not being completely clear, and uncontrollable construction processes during the construction process. The problem

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