岩土力学2011,Vol.32Issue(4):1273-1277,5.
某公路瓦斯隧道综合勘察技术应用
Application of comprehensive survey technique to gas tunnel of highway
王国斌 1利奕年2
作者信息
- 1. 湖北省交通规划设计院,武汉,430051
- 2. 中国地质大学(武汉)工程学院,武汉,430074
- 折叠
摘要
Abstract
Locating of gas-bearing structure and dynamic monitoring are two key problems in methane tunnel exploration.As far as methane found in Jijiapo Tunnel in the Three Gorges Dam highway, using geological survey, geological prediction in construction (geophysical prospect and geological drilling), comprehensive gas monitoring and other means of investigation are adopted to analyze gas-bearing structure, study formation cause of gas, and predict gas feature of surrounding rock mass in front of the cutting face and determine dangerous position.It is concluded that gas in this tunnel is characterized by disperse.low density and small volume.The gas flows through fissures and pores in rock mass without tectonic conditian for large gas-bearing structure.Comprehensive survey can help to improve predicting accuracy and provide reliable geological support, and can be of great guidance to construction of similar tunnel proj ect.关键词
隧道/瓦斯/施工地质预报/监测Key words
tunnel/ gas/ construction geological prediction/ monitoring分类
交通工程引用本文复制引用
王国斌,利奕年..某公路瓦斯隧道综合勘察技术应用[J].岩土力学,2011,32(4):1273-1277,5.