高寒区小断面长隧洞单头掘进主要施工技术  

Discussion on the Single-head Tunneling Technology in Small Rock-gateway of Long Tunnel in Cold Zone at High Altitude

作　　者：杨宏波[1] 

机构地区：[1]甘肃省水利水电勘测设计研究院第一分院,甘肃张掖734000

出　　处：《西部探矿工程》2012年第5期185-187,共3页West-China Exploration Engineering

摘　　要：介绍高原寒区小断面长隧洞单头掘进施工方法,从施工工艺方面做了较详细的介绍。通过这些技术的综合利用,保证了高难度工程快速有效地进行。The paper introduces the single-head tunneling tech- nology in small rock-gateway of long tunnel in cold zone at high altitude, especially from the aspect of construction technique. Through the utilization of the technology the project with hard difficulty can be processed effectively.

关 键 词：小断面长隧洞 新奥法 锚喷支护 回填灌浆 

分 类 号：U455[建筑科学—桥梁与隧道工程]