摘要
以新建云桂铁路平点一号隧道施工为例,通过对隧址处围岩工程地质、自然环境的勘察,分析出施工所面临的重难点问题,对比了暗挖法、明挖法、设高路堑边坡方案存在的施工风险及影响因素,经综合分析,确定了软弱围岩隧道暗挖法改为明挖法的方案,并详细介绍了明挖法的施工工艺流程及其施工技术要点,以供类似工程参考借鉴。
Taking Flat Spot No. 1 Tunnel construction of newly-bulb Yunnan-Guangxi Railway as the example, the paper anatyzes me construcuon difficulties and main points by the exploration for surrounding rock engineering geology and natural environment, compares the construction risks and influence factors in the undercutting method, open cut method, road cutting slope scheme, identifies the undercutting method of soft sur- rounding tunnel can be replaced by the open cut method by comprehensive analysis, and introduces the craft procedure and its construction technical points of the open cut method construction, so as to provide some reference for similar projects.
出处
《山西建筑》
2015年第4期156-158,共3页
Shanxi Architecture
关键词
隧道
明挖法
边坡防护
明洞
tunnel, open cut method, slope protection, open cut tunnel
