摘要
遂渝高速公路云雾山隧道穿越煤层、采空区、浅埋段等多种不良地质段,采用新奥法施工。针对不良地质条件,采用水平收敛和拱顶下沉,钢支撑应力、围岩内变位等多种监测手段,对围岩的应力变化、收敛情况,以及支护结构的受力变化情况进行研究分析。量测数据经分析处理,进行预测和反馈,保证了隧道施工过程中围岩稳定和施工安全。
Yunwushan Tunnel in Suining-Chongqing Highway passes coal layer, mined-out area and shallow buried segment, and it is constructed with new austrian tunneling method. According to unfavorable geological conditions, horizontal convergence and vault settlement, steel supports stress and surrounding rock internal deformation are monitored to analyze surrounding rock stress, convergence and support structure stress. Through analysis and calculating, the monitored data can be used in prediction and feedback, thus surrounding rock stability and construction safety can be ensured.
出处
《施工技术》
CAS
北大核心
2010年第1期41-44,共4页
Construction Technology
关键词
隧道
新奥法
不良地质
监控量测
tunnel
new austrian tunneling method
unfavorable geology
monitoring
