Deep foundation pit water leakage emergency rescue cofferdam and construction method thereof

Abstract

The invention discloses a deep foundation pit water leakage emergency rescue cofferdam and a construction method thereof. The cofferdam comprises a plurality of linear water injection box bodies and corner type water injection box bodies, each of the linear water injection box bodies and corner type water injection box bodies is provided with a water injection hole, water leakage positions of an underground diaphragm wall are enclosed by the linear water injection box bodies and the corner type water injection box bodies to be mutually spliced and assembled layer by layer, inserting body structures are correspondingly arranged between the vertical adjacent upper and lower layers of linear water injection boxes, between the vertical adjacent upper and lower layers of corner type water injection boxes, between the horizontal adjacent linear water injection boxes, and between the horizontal adjacent linear water injection box and the corner type water injection box, and the bottom of the linear water injection box body on the bottom layer and the bottom of the corner type water injection box body on the bottom layer are each provided with insertion feet inserted into a deep foundation pit soil body. According to the deep foundation pit water leakage emergency rescue cofferdam and the construction method thereof, when a deep foundation pit leaks water, the purpose of rapidly assembling the deep foundation pit water leakage emergency rescue cofferdam can be achieved, and control over the water leakage danger is facilitated; and the cofferdam is reliable and stable in connection and not prone to collapse.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to an emergency cofferdam for leaking water in deep foundation pits and a construction method thereof. Background technique [0002] During the excavation of deep foundation pits, water seepage in the enclosure structure of deep foundation pits during the earthwork excavation stage has always been the main control point in the construction stage of deep foundation pits. Water seepage occurs in the enclosure structure of deep foundation pit, and the soil particles in the soil will move under the action of seepage water flow, so that the fine particles filled in the gaps of the soil skeleton will be taken away by the seepage water to form a water gushing channel, among which the gushing water channel Also known as piping. The sediment carried in the piping will increase with the increase of the water inflow, and when the situation is serious, it will cause the founda...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a deep foundation pit seepage water emergency cofferdam and its construction method to solve the problem that rapid emergency rescue cannot be achieved

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