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针对边坡稳定分析计算方法冗长繁琐、计算量大以及已有图表解法仍需试算等不足,考虑到影响黄土边坡稳定的主要因素,如岩性、地形、地下水条件、坡体含水量以及地震烈度等,采用简化毕晓普法并归化其计算式为无因次方程,借助计算机及边坡稳定分析程序,获得了简捷明快、使用方便的稳定分析图。同时,在大量系统计算的基础上,分析了地震烈度、强度指标、孔隙水压力系数等参数对危险滑面及稳定曲线位置的影响。结果表明,滑坡范围随地震烈度、孔隙水压力、粘聚力的增大而增大,随土体内摩擦角的增大而减小。
In view of the long and tedious calculation of slope stability analysis, the large amount of calculation and the calculation of the existing chart solution, the main factors influencing the stability of loess slope are considered, such as lithology, topography, groundwater conditions, slope water content, Earthquake intensity, simplified Bixu Pu law and naturalization of the calculation formula for the dimensionless equation, with computer and slope stability analysis program, access to a simple and easy to use, stable analysis of the map. At the same time, on the basis of a large number of systematic calculations, the influence of seismic intensity, strength index, pore water pressure coefficient and other parameters on the position of dangerous slip surface and steady curve is analyzed. The results show that the range of landslide increases with the increase of earthquake intensity, pore water pressure and cohesion, and decreases with the increase of friction angle within soil.