摘要
本文以马鞍石隧道围岩地质条件为基础,以设计资料为依据,根据岩块力学参数试验成果和岩体工程地质研究的分类成果,运用Hoek-brown等经验准则确定了岩体力学参数,运用三维快速拉格朗日有限差分程序对Ⅳ类围岩全断面开挖后隧道围岩的稳定性进行了数值建模和分析计算,对隧道开挖过程中的力学行为和稳定性进行了评价和预测。
Based on the geological conditions of wall rock in Maanshi tunnel, according to design data and the results of rock mechanic parameters and classification of rock engineering geology, using Hoek-brown criterion to confirm rock mechanic parameters, taking FLAC3 D to carry on numerical simulation and analysis calculation for the stability of tunnel wall rock after full-face excavation of Ⅳ wall rock, the dynamic behavior and stability during the tunneling process are evaluated and forecasted.
出处
《有色金属（矿山部分）》
2008年第5期40-42,共3页
NONFERROUS METALS(Mining Section）
关键词
山岭隧道
施工
围岩稳定
数值模拟
ridge tunnel
construction
wall rock stability
numerical simulation
