Foundation pit side wall frost heaving prevention method

Abstract

The invention discloses a foundation pit side wall frost heaving prevention method, and belongs to the technical field of building construction. The side wall of a foundation pit is provided with a water draining hole, the water draining hole is a metal pipe draining pipe, a water draining hole is formed in the metal pipe, the outer portion of the segment, inserted into the soil on the side wall of the foundation pit, of the metal pipe is wrapped with water filter gauze, the metal pipe is connected with a power cathode, a metal bar is connected with a power anode, the metal bar corresponds tothe metal pipe on the same side, the ground surface of the position, between the metal bar and the side wall of the foundation pit, of the upper portion of the foundation pit is provided with waterproof geotechnical cloth, the metal pipe is connected with the power cathode, the metal bar is connected with the power anode, the metal pipe and the metal bar are correspondingly mounted, water in soilcan be smoothly drained, and through a method of reducing the water containing amount in the soil, soil frost heaving damage to the side wall of the foundation pit can be prevented.

Description

technical field [0001] The invention belongs to the technical field of building construction, in particular to a method for preventing frost heave on the side wall of a foundation pit. Background technique [0002] In the construction foundation pit project in the seasonal frozen soil area, for the foundation pit project that needs to be used in winter, because the foundation pit cannot be backfilled, the side wall of the foundation pit is exposed to the low temperature environment outside, if the soil on the side wall of the foundation pit has frozen In the process of overwintering the foundation pit, the frost heaving of the soil on the side wall of the foundation pit will increase the horizontal load on the support structure, which will cause the danger of internal force increase, deformation and damage of the support structure; for dredging Frost heave will easily cause the soil between the piles to fall off, and even damage the protective surface layer of the side wall,...

AI Technical Summary

Problems solved by technology

[0002] In the construction foundation pit project in the seasonal frozen soil area, for the foundation pit project that needs to be used in winter, because the foundation pit cannot be backfilled, the side wall of the foundation pit is exposed to the low temperature environment outside, if the soil on the side wall of the foundation pit has frozen In the process of overwintering the foundation pit, the frost heaving of the soil on the side wall of the foundation pit will increase the horizontal load on the support structure, which will cause the danger of internal force increase, deformation and damage of the support structure; for dredging Frost heaving will easily cause the soil between the piles to fall off, and even damage the protective surface layer of the side wall, resulting in the collapse of the side wall of the foundation pit.

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