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 rocksoil 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.
作者
吴向东
张凌晨
卢应发
Wu Xiangdong;Zhang Lingchen;Lu Yingfa(School of Civil Architecture & Environment,Hubei Univ.of Technology,Wuhan 430068,China;Mechanical & Electrical Installation Engineering Co.,Ltd.,China Coal Construction Group No.3,Suzhou 234000,China)
出处
《三峡大学学报（自然科学版）》
CAS
北大核心
2019年第4期27-34,54,共9页
Journal of China Three Gorges University：Natural Sciences
基金
国家自然科学基金面上项目(41372363
41641027
50879044)
三峡后续工作地质灾害防治项目(0001212015CC60005)
关键词
剪应力-应变全过程
本构模型
水位
稳定性评价
滑坡
complete shear stress-strain process
constitutive model
water level
stability evaluation
landslide
