基于滑动面倾角权重的边坡稳定性评价

Slope Stability Evaluation Based on the Weight of Sliding Inclination Angle

基于点安全系数评价边坡稳定性的优势,通过弹性力学基础理论得到一点单元体的应力状态表述,以摩尔-库伦准则获得基于空间应力状态的安全系数表达形式。在确定边坡安全系数最小值的前提下,通过识别潜在滑动面,以滑动面倾角为权重,建立最小安全系数与整体安全系数的关系,最终以整体安全系数评价边坡的稳定性。

Based on the advantage of point safety factor method, the stress states of calculated elements are obtained by the elastic mechanics, and then the safety factor of slope is computed by Mohr-coulomb theory. The potential sliding surface of slope is can be recognized after the determination of minimum safety factor. The relationship between the minimum safety factor and the general safety factor is established by taking the sliding surface inclination as weight, therefore the slope stability is evaluated by general safety factor.