基于强度折减法对某公路隧道洞口高仰坡稳定性进行三维分析,并计算不同坡率对仰坡稳定性的影响.以实际工程为依托,在分析中充分利用强度折减数值计算法的优点,在模拟隧道开挖及仰坡加固的基础上计算各种工况安全系数,本文所采用的方法可为今后类似工程提供一定借鉴.
This paper deploys three-dimensional stability analysis of one highway tunnel opening heading slope with strength reduction method and calculates the influence of different slope ratios to the stability analysis. It also makes full use of the advantage of strength reduction method and calculates the safety factor of heading slope under the conditions of tunnel excavation and slope reinforcement. This method can provide reference for similar proiects.