摘要
针对三峡库区滑坡特征,考虑不同水位条件下滑坡的渐进变形破坏及稳定性演化规律.在新的剪应力-应变全过程本构模型的基础上,探讨了滑坡的渐进变形破坏机理,应用部分强度折减法、综合下滑力-抗滑力法、主推力法、综合位移法和富余位移法对卡子湾滑坡在不同水位下的稳定性、力的特征进行了分析,结果表明:卡子湾滑坡破坏面积比为0.65,对应的稳定系数表明,卡子湾滑坡整体处于基本稳定状态.
In light of the landslide charateristics in the Three Gorges Reservoir area, the progressive deformation failure and stability evaluation under different water levels are researched for the different rock-soil characteristics. The mechanism of deformation failure of the landslide is investigated; the safety factors of partial strength reduction method, comprehensive sliding anti-slip force method, main traction method, comprehensive displacement method and surplus displacement method are used to analyze and calculate; and then the corresponding forces are also investigated under different water levels based on the constitutive model of the shear stress-strain complete process. The research results show that the failure area ratio is 0.05 and the whole sliding body is in a basic stable state for the Kaziwan landslide.
引文
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