Tunnel construction method with shield type multi-arm heading machine and new Austrian tunneling method combined

Abstract

The invention provides a tunnel construction method with a shield type multi-arm heading machine and a new Austrian tunneling method combined. The method comprises the following steps of 1, tunnel excavation; 2, muck removal; 3, preliminary bracing; 4, step change operation, wherein a walking type supporting structure is adopted for controlling overall movement and steering of equipment; 5, inverted arch construction and secondary lining, wherein corollary equipment is adopted for inserted arch construction, geotechnical cloth and waterproof plate laying, reinforcing steel bar binding and secondary lining construction. The defects that a traditional borehole-blasting method comprises many construction procedures, the construction organization is complex, the construction period is long, the back break amount is large, and safety performance is poor are overcome, the shield type multi-arm heading machine and the new Austrian tunneling method are combined, and the advantages of being fast, efficient, safe, reliable, high in construction quality and the like are achieved.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to a tunnel construction method combining a shield-type dobby boring machine and a new Austrian method. Background technique [0002] Due to the special quality and construction period requirements, the traditional drilling and blasting construction method is difficult to meet the needs of project construction, while the tunnel boring machine construction method has the advantages of fast, efficient, safe and reliable, good construction quality, and low cost, and has become the key to the first choice of long tunnel projects Technical equipment. Compared with the traditional tunneling technology, the shield-type dobby tunneling machine can realize continuous tunneling, and can simultaneously complete operations such as rock breaking and mucking out and support, and has high tunneling efficiency. Its tunneling speed is generally faster than that of conventional drilling and blastin...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a tunnel construction method combining a shield-type dobby boring machine and the new Austrian method, which overcomes the shortcomings of the traditional drilling and blasting method, which have many construction procedures, complex construction organization, long construction period, large excess and underexcavation, and poor safety.

Images