Comprehensive receiving construction method of shield steel sleeve under complex environment

Abstract

The invention relates to the technical field of construction, in particular to a comprehensive receiving construction method of a shield steel sleeve under a complex environment. WSS horizontal grouting is firstly adopted for reinforcing a receiving end, and after construction of a receiving well bottom plate steel sleeve foundation is completed, steel sleeve mounting, steel sleeve bottom anchor bar welding and cushion layer construction are carried out. After glass fiber bars on a tunnel portal protection layer and a surface layer are stripped off, steel sleeve closing and packing construction in the sleeve are carried out. After backfilling is finished, tunnel portal grinding is carried out, and the tunnel portal continues to be pushed forwards in a tunneling manner to enter the steel sleeve. When tunneling is carried out to the shield tail to arrive at the middle of a concrete diaphragm wall, shutdown is achieved, blocking is carried out for the first time, after the shield tail isseparated out of a tunnel portal steel ring, blocking is carried out for the second time, after the sleeve is dismounted, an arc steel plate is adopted for blocking, meanwhile, post grouting and filling are carried out on the arc steel plate, and shield receiving is completed safely and smoothly. The process operability is high, operation is safe and reliable, the influence on surroundings is reduced, and popularization is easy. The comprehensive receiving construction method is mainly applied to the shield steel sleeve receiving aspect.

Description

technical field [0001] The invention relates to the field of construction technology, and more specifically, relates to a comprehensive receiving construction method of a shield steel sleeve in a complex environment. Background technique [0002] The 21st century will be a period of rapid development in the development and utilization of underground space in China. More and more advanced and mature shield construction methods will be selected for the construction of subway tunnels, comprehensive pipe corridors, and highway tunnels. In the construction of shield tunneling, the starting and receiving of shield tunneling are the key and difficult points in all procedures, especially for shield tunneling reception, the construction technology quality requirements of each construction stage of shield tunneling are strict, and the safety requirements are high, especially in complex geological environments It is difficult to carry out receiving construction, and the error rate is h...

AI Technical Summary

Problems solved by technology

In the construction of shield tunneling, the starting and receiving of shield tunneling are the key and difficult points in all procedures, especially for shield tunneling reception, the construction technology quality requirements of each construction stage of shield tunneling are strict, and the safety requirements are high, especially in complex geological environments Receiving construction is difficult and has a high error rate

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