A Submerged Underground Excavation Construction Method of Rectangular or Quasi-rectangular Section Underground Engineering Machinery

Abstract

The invention discloses a method for mechanical branch underground excavation construction of rectangular and quasi-rectangular cross-section underground engineering. A peripheral structure is divided into a plurality of branch structures through a section cutting plane perpendicular to the rectangular and quasi-rectangular cross-section; segmentation prefabrication is performed on each branch structure in the longitudinal direction perpendicular to the cross-section plane, and a plurality of segmentation prefabricated parts are obtained from each branch structure; the segmentation prefabricated parts are composed of permanent structural elements and temporary structural elements, the permanent structural elements are branch structure segmented blocks and are detachably connected with the temporary structural elements; guide rails and guide rail grooves are correspondingly positioned between the adjacent segmentation prefabricated parts, the guide rails are inserted into the guide rail grooves to perform adhesion of the adjacent segmentation prefabricated parts and guide positioning in the jacking process; an application tunneling device constructs a starting space and a receiving space; and jacking construction is performed on the segmentation prefabricated parts of each branch structure. According to the method, large rectangular and quasi-rectangular cross-section underground spatial engineering can be constructed safely efficiently, environmentally friendly and economically below roads and buildings.

Description

technical field [0001] The patent of the invention relates to a new construction method of mechanical underground excavation in an underground space with a rectangular section, which belongs to the field of underground engineering. Background technique [0002] Compared with circular cross-section structures, rectangular or quasi-rectangular cross-sections in underground space engineering have the advantages of shallow soil covering and high space utilization. Therefore, rectangular and quasi-rectangular cross-sections have received more and more attention and application in underground space engineering. At present, the commonly used methods for building underground space projects with rectangular or quasi-rectangular sections include open cut method, cover excavation method, mine method, pipe jacking method and shield method, etc. Both the open cut method and the cover excavation method need to destroy the ground environment, and should not be used when large-scale ground ...

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Problems solved by technology

[0004] The present invention proposes a method for constructing subdivided underground engineering machinery with a rectangular or similar rectangular section, which solves the problem of damage to the environment by the open cut method and the cover excavation method and the construction efficiency of the mining method when constructing an underground space project with a rectangular or similar rectangular section. low and high safety risks, and it is difficult to form a large rectangular section structure at one time by the pipe jacking method and the shield method; with the guiding ideology of "dividing first and then combining, from the outside to the inside", through mechanical sub-construction and overall structural transformation, Realize the safe, efficient, environmentally friendly and economical construction of large rectangular or quasi-rectangular section underground space projects under roads and buildings (structures)

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