岩土工程学报2017，Vol.39Issue(z1)：131-134,4.DOI:10.11779/CJGE2017S1026
脱湿速率对膨胀土堑坡稳定性的影响分析
Influence of different drying rates on stability of cut slope of expansive soils
摘要
Abstract
For the expansive soils of Nanning in Guangxi province of China different drying environments are acquired to test the shrinking characteristics and water retention by setting different temperature and humidity conditions. The unsaturated permeability curves under different drying rate are predicted. The infiltrating process of cut slope is numerically simulated. The test results show that the slow drying rate produce a large shrinking deformation. The sustainable evaporation with high humidity results in a large potential swelling deformation in shallow strata. The numerical computation indicates that an evaporation process of slow drying rate produces a large infiltration depth. It is concluded that the sustainable evaporation with high humidity induces a large infiltration depth, which is adverse to the stability of cut slope of expansive soils.关键词
膨胀土/堑坡/脱湿/土水特征曲线/非饱和渗透系数曲线Key words
expansive soil/cut slope/drying/SWCC/unsaturated permeability curve分类
建筑与水利引用本文复制引用
徐锴,耿之周,李雄威..脱湿速率对膨胀土堑坡稳定性的影响分析[J].岩土工程学报,2017,39(z1):131-134,4.基金项目
水利部公益性行业科研专项经费项目(201401006) （201401006）
水利部公益性行业科研专项经费项目(201501043) （201501043）
国家自然科学基金项目(51408381) （51408381）
