岩体结构面对大跨度隧道工程稳定性影响初步研究

Preliminary studies of the effect of structural plane on stability of large span tunnel

基于对沈阳至大连 (简称沈大 )高速公路扩建工程韩家岭隧道区域调查和分析 ,研究了岩体结构面对隧道施工过程的影响 ,围岩失稳方式及可能遇到的问题 ,并提出了解决这些问题的措施。

Based on the investigation and analysis about this region where the Han Jialing tunnel is to build,which is part of the project of the highway to be extended from Shenyang to Dalian,both the geological survey and the rock mass characteristic of this region is presented.Considering the influence of the configuration surface of the rock mass to the stability of the wall rock and the further potential danger to the highway construction,it is necessary to optimize the costruction plan before starting to work,additionally it is advisable to make the best of the bearing capacity of the wall rock,in order that the working safety can be ensured.