摘要
通过对饱和–非饱和淤泥土的抗剪强度和土–水特征曲线SWCC测试,以及利用SWCC对非饱和淤泥土的抗剪强度预测,结果显示了饱和土的抗剪强度τsat小于非饱和土的抗剪强度τunsat,预测与实测的非饱和抗剪强度基本一致,并且非饱和抗剪强度随基质吸力ψ增加而增大,也反映了野外现场的物理条件和应力状态对细颗粒土的性质有重要影响。
Comparisons of shear strength between the saturated and unsaturated sandy silt were shown based on the measured shear strength using a modified direct shear device, and shear strength was predicted using the saturated soil properties and soil-water characteristic curve （SWCC） for the sandy silt. It was illustrated that the saturated shear strength was less than the unsaturated shear strength, and the unsaturated shear strength increased with increasing matric suction. It was shown by this study that properties of the saturated-unsaturated fine-grained soils were affected by physical conditions and the stress condition in the field.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2006年第11期1932-1935,共4页
Chinese Journal of Geotechnical Engineering
基金
河海大学水文水资源与水利工程科学国家重点实验室开放研究基金资助项目(2005408911)
