Application of Unsaturated Constitutive Model to Estimation of Land Subsidence

摘要：

Drawdown of groundwater table causes change of net mean stress and matric suction in unsaturated soil and then induces volume change of the soil mass.Based on test results,using the Fredlund constitutive model and effective stress theory, subsidence of unsaturated soil zone and saturated zero are estimated respectively for different drawdown depth.Computed results indicated that in total amount of subsidence.The portion of subsidence of unsaturated soil zone cannot be overlooked.The contributions of unsaturated soil zone to total subsidence increased as drawdown depth increases.

关键词： unsaturated soil subsidence shrinkage matric suction

作者: WANG Donglin FANG Tingyong

作者单位: Department of Civil Engineering,Anhui Institute of Architecture & Industry,Hefei 230601,China

会议类型: 国际会议

会议名称: The 2nd International Conference on Asian-European Environmental Technology and Knowledge Transfer(第二届亚欧环境技术及知识转化国际研讨会)

会议地点: 合肥

会议语种:英文

页码: 465-469

在线出版日期: 2008-06-05（万方平台首次上网日期，不代表论文的发表时间）