云南大丽铁路三元隧道开挖与支护施工技术  

Excavating and supporting construction technologies of Sanyuan Tunnel of Dali Railway in Yunnan

作　　者：刘伟 

机构地区：[1]中铁四局集团二公司,云南丽江674100

出　　处：《铁路工程造价管理》2009年第6期40-44,共5页Railway Engineering Cost Management

摘　　要：在铁路隧道施工过程中,隧道的开挖与支护是保证施工质量及安全控制的关键环节。此文初步探讨了Ⅴ级、Ⅳ级、Ⅲ级围岩隧道开挖与支护的施工技术,对长短台阶法、全断面法、CRD法及CD法4种施工方式做了简要介绍。In the process of railway tunnel construction, excavating and supporting technology is a critical link of construction quality and security control. This paper explores excavating and supporting construction technologies of railway tunnels in Ⅴ - class surrounding rock, Ⅳ - class surrounding rock, Ⅲ - class surrounding rock, including long＆ short step based method, entire section method, CRD - method and CD - method.

关 键 词：隧道 开挖 支护 施工技术 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]