某隧道边坡稳定性研究

通过对隧道边坡破坏模式分析,建立了边坡地质概化模型,确定了岩体及控制性结构面物理力学参数,并基于刚体极限平衡法对边坡在不同工况条件下的安全系数进行了计算分析,分析结果表明,目前条件下边坡整体趋于稳定,但隧道的开挖会导致边坡稳定性一定程度降低,暴雨工况会导致边坡稳定性显著降低,最后为进一步探讨边坡加固方案提出了建议。

Stability research on a tunnel slope

Through the analysis on tunnel slope failure mode,this paper established the slope geological conceptual model,determined the physical and mechanical parameters of rock and control structural surface,calculated and analysed the safety coefficient based on rigid body limit equilibrium method under different conditions.The analysis results showed that,the whole slope tends to be stable in present conditions,but the excavation of tunnel would lead to slope stability reduced in a certain extent,rainstorm condition would cause the slope stability significantly reduced,finally proposed suggestion to further discussion the slope reinforcement scheme.