反倾岩质库岸边坡渗流稳定性数值分析

在库水渗流作用下，水位变化会产生非稳定渗流，土体的渗透性质会影响土体中水压力分布.利用有限元Phase2软件，对不同水位情况下的反倾岩质库岸边坡进行渗流分析，研究库水水位变化速率和滑体渗透系数对岸坡稳定性的影响.当滑体渗透系数一定时，库水位变化速率越大，岸坡安全系数变化越明显.当库水位变化速率一定时，滑体渗透系数越小，岸坡安全系数变化越明显.当库水位下降速率越大，滑体渗透系数越大时，岸坡最容易发生失稳滑移破坏.

英文摘要:

Under the action of reservoir water seepage，the change of water level will produce unsteady seepage，and the seepage property of soil will influence the distribution of water pressure.Seepage analysis is carried out on anti-dip rock bank slope under different water level by using the finite element Phase2 software.The influence of slope stability is studied under different water level variation rate and slip permeability coefficient.When the permeability coefficient of landslide is certain，the greater variation rate of reservoir water level，the more obvious variation of safety factor.When the variation rate of reservoir water level is certain，the smaller permeability coefficient of landslide，the more obvious variation of safety factor.When the falling rate of reservoir water level and the permeability coefficient of landslide is larger，the bank slope is more likely to be damaged.

查看全文查看/发表评论下载PDF阅读器

关闭