A mixed construction method for underground engineering

Abstract

The invention discloses an underground engineering mixed construction method which comprises the following steps that (1) the surface of a road is transversely divided into a section A, a section B and a section C, the section A is sealed, reinforced concrete construction is carried out on the section A, and an underground continuous wall is obtained; (2) the surface layer earthwork is excavated to obtain a basement top slab of the section A; (3) earth is backfilled to recover the traffic of the road face of the section A; (4) the section B is sealed, and reinforced concrete construction is carried out on the section B to obtain an underground continuous wall; (5) the surface earthwork is excavated to obtain a basement top slab of the section B; (6) earth is backfilled to recover the traffic of the road face of the section B; (7) the section C is sealed, the surface earthwork is excavated, and basement bottom slabs of the section A, the section B and the section C are obtained; (8) a basement top slab of the section C is obtained and connected with the top slab of the section A and the top slab of the section B; (9) earth is backfilled, and the road face traffic is recovered. By means of the underground engineering mixed construction method, efficient and safe construction on the road face is achieved, bi-directional traffic is achieved, and the problems that a cover and cut-top down method is limited by excavation depth and is low in excavation speed are solved.

Description

technical field [0001] The invention relates to a construction technology, in particular to a mixed construction method for underground engineering. Background technique [0002] Domestic urban development is increasingly facing problems such as land shortage, traffic congestion, environmental pollution, energy shortage, and vulnerability to disaster prevention. The way of urban space expansion is shifting from "ground" to "three-dimensional". More and more municipal projects and civil projects choose to develop underground, and a large number of large underground buildings have been newly built. However, the development site of underground buildings is often located in the center of the city. During the construction period, the closed road will put a lot of pressure on the traffic, especially when there are no surrounding roads for vehicles to detour, the road closed construction will cause urban traffic function of paralysis. [0003] The current common methods of underg...

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Problems solved by technology

[0004] The purpose of the present invention is to make up for the defects of the prior art, and to provide a method for constructing underground engineering, which can realize efficient and safe construction, and two-way traffic on the roadway; and can solve the problem that the engineering construction is restricted by the excavation depth and the excavation speed is low Problems of Mixed Construction Methods for Underground Engineering

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