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在考虑土钉对土质边坡稳定性影响的情况下,根据土体边坡滑移面的破坏模式、塑性极限理论以及拟静力法,建立了地震作用下土钉支护边坡稳定性模型,推导了边坡滑移面圆心位置与稳定系数之间的函数关系以及滑移面上耗散内能的计算表达式,并且采用遗传算法,实现了地震作用下土钉支护边坡的稳定性验算。结果表明:这种计算方法避免了在圆弧搜索中陷入局部最小值的缺点,可以考虑孔隙水压对稳定性的影响,对土质较均匀的黄土地区是适用的。
Considering the influence of soil nailing on the stability of soil slope, the stability model of soil nailing slope under earthquake is established according to the failure mode, plasticity limit theory and quasi-static method of slip surface of soil slope. , The functional relationship between the position of the center of slip surface and the stability coefficient and the calculation formula for the dissipated internal energy of the slip surface are deduced. The stability of soil nailing slope under earthquake is also obtained by genetic algorithm Sexual checking calculation. The results show that this method avoids the disadvantage of falling into the local minimum in circular arc search. The influence of pore water pressure on the stability can be considered and is suitable for loess areas with more uniform soil quality.