Subsequent project and shield driving parallel construction method for long-distance railway tunnel

Abstract

The invention relates to the technical field of shield tunnel construction, in particular to a subsequent project and shield driving parallel construction method for a long-distance railway tunnel. The method solves the technical problems that conventional railway shield tunnel driving cannot be constructed in parallel with subsequent projects of secondary linings, tunnel bottom longitudinal beams, cable grooves, communication passages and the like and has long construction period and high cost and the like. The method comprises the following steps of: performing shielded supporting facility and construction transport battery truck rail optimization during shield tunnel driving and extension of various pipelines in shield construction; and meanwhile, performing tunnel bottom longitudinal beam construction and secondary lining construction of a soft rock section, performing groove construction when the tunnel bottom and the secondary lining are not casted, detaching a sleeper during changing a tool, spreading a rail at the tunnel bottom, and performing next cycle. The method can be used for communication passage construction, caulking construction and contact net chute construction, and has the advantages of simplicity in process, short construction period, low construction cost, good popularization prospect and the like; and proved by practice, the method gains good economic benefit and social benefit.

Description

technical field [0001] The invention relates to the technical field of shield tunnel construction, in particular to a method for parallel construction of long-distance railway tunnel follow-up engineering and shield excavation. Background technique [0002] With the development of my country's high-speed railway construction, more and more projects use shield tunneling to construct railway tunnels. The shield method has been widely used in various tunnels, and is developing for long distances. The tunnel distance is generally greater than 5 kilometers. The shield method can only be used to build the tunnel at one time. However, the railway tunnel also has many follow-up projects such as tunnel bottom longitudinal beams, cable trenches, communication channels, and catenary. So far, the traditional construction method can only be shield tunneling. After the tunnel is formed, the subsequent construction cannot be carried out at the same time, which has the disadvantages of comp...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a new long-distance tunneling method in order to solve the technical problems that the secondary lining, tunnel bottom longitudinal beam, cable trench, communication channel and other follow-up projects cannot be constructed in parallel in the excavation of the existing railway shield tunnel, the construction period is long, and the cost is high. Parallel Construction Method of Railway Tunnel Subsequent Engineering and Shield Tunneling