摘要
采用有限元强度折减法对某水电站坝肩覆盖层边坡进行稳定分析,针对有限元强度折减法中模型范围、网格尺寸、边界条件、收敛容差、收敛准则及判别准则等影响因素进行敏感性分析。通过分析总结出其对安全系数的不同影响。研究成果可降低人为因素的影响,使边坡设计计算规范化,对边坡工程设计起到很好的指导作用。
By application of the finite element reduction method,the overburden slope in abutment of a hydropower project is analyzed.The sensitivity analysis is performed in terms of model scope,grid dimension,boundary condition,convergence tolerance,convergence code and determination codes,etc in the method.Through analysis,their impacts on safety factor are concluded.The study may reduce impacts from artificial factors to have slope design and computation standardize.It can well guide slope design.
作者
王静
WANG Jing(PowerChina Northwest Engineering Corporation Limited,Xi'an 710065,China)
出处
《西北水电》
2018年第6期24-30,共7页
Northwest Hydropower
关键词
边坡稳定性
有限元强度折减法
影响因素
slope stability
finite element strength reduction method
impact factor
