【摘要】 岩土边坡结构的复杂性一直影响工程建设中对边坡稳定性的准确评价,反之,边坡稳定性评价结果准确与否制约工程建设。基于极限平衡理论,根据原位钻孔剪切试验特征,运用slope/w对传统计算模型进行探讨、优化,最终得出:(1)原位钻孔剪切试验反映出坡体结构中岩土体的各向异性,数值水平高于室内实验值;(2)传统计算模型+室内试验参数方案计算结果偏于保守,传统计算模型+单一原位参数计算结果存在偏大或偏小的可能性;(3)优化分层计算模型+分层原位参数方案切实可行,提高边坡稳定性评价的准确性,对工程边坡评价意义重大。更多还原

【Abstract】 The complexity of geotechnical slope structure has been affecting the accurate evaluation of the slope stability in the engineering construction. On the contrary,the slope stability evaluation results restrict project construction. Based on the limit equilibrium theory,and according to the characteristics of in-situ shear test,slope/w is used to investigate and optimize the traditional calculation model. The results show as follows.(1)In-situ borehole shear test reflects the in situ anisotropic slope structure in rock and soil,the numerical level is higher than that of experimental value.(2)Laboratory test parameters of traditional calculation model and calculation results are conservative,traditional parameter calculation model and single in-situ test results have the possibility of partial small or large.(3)It is feasible to optimize the model of layered calculation and the layered in situ parameter scheme to improve the accuracy of slope stability evaluation.更多还原