摘要
为了保证隧道洞口边仰坡的稳定 ,隧道设计规范对刷坡坡率和开挖高度有一定的控制要求 ,但这种要求仅局限于围岩的类别 ,而对围岩的层理性状和地下水对坡体稳定性的影响不能作出判断。本文运用多种土质的圆柱破坏面转动平衡分析方法分析这些因素对坡体稳定性的影响 ,对合理确定洞口位置。
For ensuring the stabilization of slope around tunnel entrance, the tunnel design criterion gives out the definite demands to solpe gradient and excavating high, but these demands are confined only the sort of surrounding rock, can not judge the influence of layer property of surrounding rock and ground water. The paper uses the rotational equilibrium stabilizaton method to analyze the influence factors of the slope stabilization, and gives out the constructive opinions to confirm tunnel entrance reasonably, and to ensure stabilization of the side and face upward slope.
出处
《铁道工程学报》
EI
2002年第1期38-41,共4页
Journal of Railway Engineering Society
