Basement double-exterior-wall anti-floating drainage and pressure reduction structural system

Abstract

The invention belongs to the technical field of constructional engineering and particularly relates to a basement double-exterior-wall anti-floating drainage and pressure reduction structure system. The system comprises a main body structure, a soil facing side exterior wall, a double-exterior-wall top plate and a double-exterior-wall bottom plate, wherein the main body structure is arranged in the supporting structure and comprises a main body structure outer wall and a main body structure bottom plate; a soil side outer wall is arranged between the main structure outer wall and the supporting structure, the bottom and the top of the soil side outer wall are connected with the main structure outer wall through a double-outer-wall bottom plate and a double-outer-wall top plate respectively, a foundation pit fat groove is formed between the soil side outer wall and the supporting structure, and a drainage channel is formed between the soil side outer wall and the main structure outer wall; the double-outer-wall bottom plate is higher than the main structure bottom plate; a plurality of outer wall drainage holes are formed in the soil facing side outer wall, and a plurality of bottom plate drainage holes are formed in the double-outer-wall bottom plate. The anti-floating design water level can be effectively reduced, later maintenance and overhaul are convenient and reliable, stability of the anti-floating design water level is guaranteed, and meanwhile the construction cost is saved.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a basement double outer wall anti-floating water release and pressure-reducing structural system. Background technique [0002] The selection of the anti-floating design water level is very important to the project cost. The conventional geological survey report generally takes the anti-floating water level as the outdoor ground. If the pressure measures are taken, the anti-floating water level of the area with higher terrain will inevitably increase, and the construction cost of the basement will also increase. It is already a consensus in the industry to use various methods to reduce the anti-floating water level. [0003] At present, blind ditch drainage technology and Tianli drainage and decompression technology are widely used in the engineering market. Blind ditch drainage technology is widely used. According to past engineering experience, bli...

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Problems solved by technology

[0003] At present, blind ditch drainage technology and Tianli drainage and decompression technology are widely used in the engineering market; blind ditch drainage technology is widely used. According to past engineering experience, The blind ditch technology is difficult to test the effectiveness of blind ditch drainage, and the blind ditch is generally small in size, easy to block in the later stage, and difficult to maintain and dredge; Holes are opened in the wall and floor, and anti-filter bags are filled in the openings. The drainage efficiency is not high, and the holes in the side walls and floor of the main structure will cause dampness in the basement and affect the appearance.

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