讨论表面渗流对生态边坡中客土稳定性的影响,设计并进行了同一种客土的无渗流和表面渗流情况下的稳定性试验。表面渗流情况下客土的破坏模式与无渗流情况下相同,即一条沿平面网上表面的平行于原边坡坡面的直线滑动面。利用表面渗流情况下的客土稳定性试验结果,验证了杨俊杰等提出的客土稳定设计图表的适用性。试验结果和理论分析均表明,渗流使客土的稳定性显著降低。
A study on surface seepage effects on stability of borrowed soil in ecological slope.Stability tests of the soil without seepage and with surface seepage which use the same soil are carried out.It is found that the failure mode of the soil is a translational sliding surface parallel to the original slope surface along the upper surface of plane nets via stability tests with surface seepage;it is the same as the failure mode of stability tests without seepage.Stability tests of the soil with surface seepage testify that the charts,developed by YANG Jun-jie are effective.It is known from test results and theoretical analysis that stability of borrowed soil with surface seepage is remarkably reduced than that without seepage.