摘要
先以渗流-应力耦合分析求出,降雨入渗条件下边坡的应力、位移、孔隙水压力等情况;再以重度增大法为依据,结合非饱和土强度理论,求出边坡破坏时的极限荷载因子。结果表明,降雨入渗情况下,由于孔隙水压力的改变,边坡极限荷载因子显著减小,稳定性显著降低;随降雨强度或持续时间的增大,稳定性降低。
By coupling seepage-stress, the stress, displacement, and pore water pressure of soil slope under rainfall infiltration can be obtained; and combined with the unsaturated soil strength theory, the limit load factor for slope failure can be calculated based on Gravity Increase Method. the result show that： under rainfall infiltration, the pore water pressure changed, the limit load factor for slope failure declined distinctly; and when rainfall intensity, or time increase, the slope stability reduce.
出处
《低温建筑技术》
2013年第11期119-121,共3页
Low Temperature Architecture Technology
关键词
降雨入渗
重力增大法
流固耦合
极限荷载因子
rainfall infiltration
Gravity Increase Method
seepage-stress coupling
limit load factor
