Construction method for high-precision underground wall

Abstract

The invention relates to the technical field of the underground construction, and discloses a construction method for a high-precision underground wall. The method comprises the following steps: implanting a plurality of anti-sinking piles at the underground bottom; installing a support plate at the top of a groove, wherein the support plate is fixed with the lower end of a sling of each crane, integral-pouring a first terrae spacing on the top face of the support plate, stripping after the intensity of the first terrae spacing reaches the stripping intensity, synchronously descending the sling for a section of distance, horizontally integral-pouring a second terrae spacing on the top face of the first terrae spacing by using concrete, and sinking the second terrae spacing to be aligned tothe ground through the sling; by parity of reasoning, successively stacking a plurality of the terrae spacings on the top face of the second terrae spacing, integral-sinking once by pouring every oneterrae spacing, and finally forming the underground wall in the groove. The underground wall constructed by the construction method has the high own size and flat shape precision, and the high positional accuracy of the horizontal position and the vertical position, so the stable stress of the underground wall is ensured, the whole quality is remarkably improved, the anti-seepage performance is good, and the construction method is safe and reliable.

Description

technical field [0001] The invention relates to the technical field of underground construction, in particular to a high-precision underground wall construction method. Background technique [0002] With the development of society, urban construction is changing with each passing day, and there are more and more underground projects, such as high-rise building basements, underground corridors, multi-storey underground garages, subway tunnels and other underground construction projects. These projects are all deep foundation construction. In order to ensure the safety of construction and the safety and stability of the surrounding environment, foundation pit enclosure is required. The basic steps of foundation pit enclosure are: underground trenching, slurrying in the trench, and wall making. There are many wall making processes, such as row pile walls, cast-in-place underground continuous walls, and semi-prefabricated semi-cast-in-place underground walls. [0003] The pile ...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of low precision and poor quality of the underground wall produced by the underground wall construction method in the prior art, regardless of its own size, plane shape, horizontal position, and vertical position, the present invention provides a high-precision underground wall. The wall construction method, the underground wall obtained by this construction method has high precision in size and plane shape, high positioning accuracy in horizontal position and vertical position, so as to ensure stable stress on the underground wall, significantly improve the overall quality, and prevent Good permeability, safe and reliable

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