Shallow-buried underground engineering overhead supporting and retaining device and underground engineering construction method

Abstract

The invention discloses a shallow-buried underground engineering overhead supporting and retaining device and an underground engineering construction method. The shallow-buried underground engineering overhead supporting and retaining device comprises top cover steel members, stand column capping beams, stand columns, two foundations and cross braces; the foundations are strip-shaped; the two foundations are arranged in parallel; the stand columns are arranged on the foundations at intervals in the longitudinal direction; the stand column capping beams are arranged at the top ends of the stand columns; the top cover steel members are arranged on the stand column capping beams; and the cross braces are arranged between every two stand columns in same cross sections. In the underground engineering construction process, a penetrated road surface can be normally open for transportation, and the traffic flow is not influenced; top covers and supporting structures are temporary steel structures, after construction is completed, the top covers, the stand columns and other components can be recovered, reutilization of materials is achieved, underground obstacles are not added, and the construction cost is low; all the components are prefabricated into standard components and are connected on site, the construction efficiency is improved, and the construction period is shortened; and supporting is performed in the process of excavation, after excavation is completed, main body construction of an underground structure is the same as main body construction of an open excavation grooving method, and the construction quality is easy to control.

Description

technical field [0001] The invention belongs to the technical field of shallow-buried underground engineering crossing road construction, and in particular relates to an overhead supporting device for shallow-buried underground engineering and an underground engineering construction method. Background technique [0002] Shallow-buried underground works refer to underground works whose top covering soil is less than 2 meters or the covering soil is less than 1.5 times the transverse dimension of the structural section. In the construction method of shallow buried underground engineering crossing the road, the construction method of open cut and slotting is usually adopted. This construction method has the characteristics of low construction cost, easy construction operation, and easy control of construction quality, but it will seriously affect the surrounding environment. , it is inevitable to block the traffic during the construction process, especially when the urban area ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the prior art, such as traffic blockage, complex construction process, high cost, low construction efficiency, temporary support structure that cannot be reused, and increased underground obstacles, the present invention provides an underground temporary Overhead and supporting structures and their construction methods. During the construction of underground works, the crossed road surface can be opened to traffic normally without affecting the traffic flow. Excavation is carried out while supporting; the roof and supporting structures are temporary steel structures. After completion, components such as the top cover and columns can be recycled, without increasing underground obstacles to realize the reuse of materials, and the construction cost is low

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