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基于滑带应力状态分析和室内试验,提出了基于滑带强度参数动态演化的滑坡稳定性评价方法,并将应力状态作为评价滑面力学参数的主要指标,以合理地反映滑面强度状态对滑坡稳定性的影响。通过室内试验,获得了滑面强度参数与工程性状、力学参数之间的量化关系,在该基础上,通过数值计算,对滑面的力学参数和滑坡的稳定性进行三维计算。计算结果表明,利用提出的方法能较好地反映出滑带强度参数的空间分区特征。同时,对工况变动情况下滑带的强度参数进行量化取值,并对滑坡的稳定性进行动态计算,提出的计算方法更能体现出滑坡力学参数与稳定性的动态变化过程。
Based on the analysis of the stress state of the sliding belt and the indoor test, a method for evaluating the stability of the landslide based on the dynamic evolution of the sliding belt strength parameters is proposed. The stress state is taken as the main index to evaluate the mechanical parameters of the sliding surface. The impact of stability. Through laboratory tests, the relationship between the sliding surface strength parameters and the engineering properties and mechanical parameters was obtained. Based on the numerical calculation, the three-dimensional calculation of the sliding surface mechanical parameters and landslide stability was carried out. The calculation results show that the proposed method can well reflect the spatial zoning characteristics of the sliding band strength parameters. At the same time, the strength parameters of the sliding belt under the condition change are quantified, and the stability of the landslide is calculated dynamically. The proposed calculation method can better reflect the dynamic change process of the landslide mechanical parameters and stability.