论文部分内容阅读
二郎山隧道出口端围岩软弱 ,地形严重偏压 ,施工过程中发生坡体失稳、衬砌开裂等病害。该文介绍浅埋偏压地段坡体稳定性评价 ,病害整治措施 ,推导了浅埋偏压段外侧覆土稳定性计算公式 ,对浅埋偏压段外侧围岩弹性抗力的合理确定及外侧覆土稳定性与弹性抗力之间的联系进行了探讨。
The surrounding rock at the exit of Erlangshan tunnel is weak and the terrain is seriously biased. The instability of the slope and cracking of the lining occur during the construction. In this paper, the slope stability and damage control measures of shallow bias section are introduced. The formulas for calculating the stability of surrounding soil under the shallow bias section are deduced. The elastic resistance of surrounding rock in the shallow bias section and the stability of the outer casing The relationship between sexual and resilient resistance is discussed.