Filling technology capable of making slurry uniformly distributed between inner wall and outer wall of freezing shaft

Abstract

The invention discloses a filling technology capable of making slurry uniformly distributed between the inner wall and the outer wall of a freezing shaft. The technology comprises the following stepsthat S1, an outer wall formwork is installed, wherein the outer wall formwork capable of forming a slurry diffusion tank in the surface of the outer wall is installed on the excavation face of the freezing shaft; S2, outer wall construction is conducted, wherein concrete is poured, and the slurry diffusion tank is formed in the surface of the outer wall by means of the outer wall formwork; S3, theouter wall formwork contracts for form release and form removal; S4, inner wall jacket-wall construction is conducted; S5, grouting between walls is conducted, wherein after inner wall jacket-wall construction is completed, grouting between the walls is conducted from bottom to top, and cement slurry can be used for uniform filling between the walls by means of the slurry diffusion tank formed inthe surface of the outer wall. According to the technology, the slurry diffusion tank with the certain depth can be reserved in the surface of the outer wall through the outer wall formwork, the slurry diffusion tank is subjected to one-step molding in the outer wall concrete grouting process, operation is easy, no island can be generated through grouting between the walls, and the safety of theshaft wall is improved.

Description

technical field [0001] The invention relates to a template for freezing the outer wall of a shaft. Specifically, it is a filling process that can make the slurry evenly distributed between the inner and outer walls of the frozen wellbore. Background technique [0002] After the construction of the casing of the frozen wellbore is completed, grouting between the inner and outer walls is required to reduce the water load on the inner wall on the one hand, and on the other hand, to make the inner and outer walls organically combined and jointly loaded. [0003] At present, the current construction technology of the outer wall is to pour the outer wall into a smooth surface, and when the inner wall is constructed, a plastic plate is laid between the walls to reduce the constraint of the outer wall on the temperature deformation of the inner wall concrete. However, during the grouting between the inner and outer walls, it was found that the interlayer gaps between the inner and ...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the present invention aims to solve the problem that the cement slurry can be filled unevenly between the walls, and provides a filling process that can make the cement slurry evenly distributed between the inner and outer walls of the frozen shaft. This process can form a certain depth of diffusion on the surface of the outer wall. Grooves, and the diffusion grooves can be formed at one time during the concrete pouring process of the outer wall, which is easy to operate

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