Construction method of pipe-jacking working well

Abstract

The invention discloses an inverse construction method for a pipe-jacking working well. The construction method comprises the following steps that the round working well is dug; a three-axis cement stirring column water-stopping curtain is adopted to form an enclosure structure; a pile top ring beam is manufactured on an enclosure pile through the working well, the self weight of the working wellstructure is borne by utilizing the ring beam, the self weight of the working well is guaranteed, the construction is constructed in a node-by-section mode, and a reinforced concrete lining is manufactured along with excavation; and the arch formed by the self structure serves as a horizontal support, the lateral soil pressure is resisted, and the safety of the well pit is guaranteed. The workingwell is constructed through the construction method, a foundation pit support can be carried out by utilizing the structure of the working well, so that the construction safety of a foundation pit isguaranteed; meanwhile, the engineering quantity of the foundation pit is reduced, the foundation pit enclosure pile and the support are reduced, and a structure construction scaffold is reduced by means of the reverse construction, the construction height is reduced, and the construction risk is avoided; and meanwhile, the workload of template turnover materials is reduced, the construction process is simplified, the construction period is shortened, and the influence on the adjacent building (structure) and the road and surrounding environment is reduced.

Description

technical field [0001] The invention relates to a construction method for reverse construction of a pipe jacking well, belonging to the technical field of construction engineering. Background technique [0002] The reverse construction method is a kind of construction technology. It is a method to construct the columns, beams and roof of the underground project first, and then use them as supporting components. The reverse construction method is adopted, because the basement can be constructed at the same time as the above-ground structure, so the total construction period of the project can be shortened; because the beam-slab floor structure of the basement is used as the internal support of the underground diaphragm wall, the deformation of the foundation pit is small, and the adjacent The settlement of the building is small; compared with the traditional method, the base plate of the reverse construction method is easier to meet the anti-floating requirements, which makes...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of reverse construction construction method of pipe jacking well, to solve the problem of pipe jacking construction under the complex construction environment in the city

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