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Numerical Analysis of Stability of Super-thick Landslide
Author(s): 
Pages: 83-87
Year: Issue:  1
Journal: Journal of Gansu Sciences

Keyword:  Super-thick landslideStabilitySafety factorFraction angleCohesion;
Abstract: 以锁儿头滑坡工程为背景,探讨其稳定性,并研究滑带土的摩擦角及内聚力对超厚滑坡安全系数的影响.结果表明:采用强度折减法计算安全系数与采用不平衡推力法的计算结果基本一致,二者误差不超过5%,说明所建立H0-2-2滑坡数值分析模型是可靠的;滑坡后壁局部滑塌,与实际勘测结果一致;滑坡属于推移式滑动,发生剪切破坏的潜在位置在滑坡体中段及后端;安全系数随着摩擦角及内聚力的增大而增大,摩擦角增大70%时,安全系数增大5.4%,内聚力增大70%时,安全系数增大10.7%,且后者对安全系数的影响比前者大.
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