上海地区滨海相软黏土十字板强度分析  

The vane strength of soft marine clays in the Shanghai area

作　　者：高彦斌[1] 袁祥成[1] 陈杰[2] 沈超[2] 

机构地区：[1]同济大学地下建筑与工程系,上海200092 [2]上海岩土工程勘察设计研究院有限公司,上海200032

出　　处：《上海国土资源》2015年第2期92-95,共4页Shanghai Land & Resources

基　　金：国家自然科学基金(40702051)

摘　　要：利用上海地区滨海相软黏土的十字板试验和土工测试数据,分析了十字板强度与深度的线性关系、十字板不排水抗剪强度与上覆有效压力之比随埋深及塑性指数的关系与变化规律,研究了每层土十字板强度平均值与静力触探比贯入阻力平均值之间的相关性,并与已有研究成果作了对比。This paper reports depth proifles of the vane shear strength of soft marine clays in Shanghai based on the results of 12 engineering investigation surveys. The relationship between depth and the ratio of undrained strength to effective overburden stress is analyzed, and the range of observed values is given. The relationship between the plasticity index and the ratio of undrained strength to effective overburden stress was also analyzed. Finaly, the correlation between FVT strength and the speciifc penetration resistance of CPT was determined.

关 键 词：软黏土 十字板强度 上覆有效压力 塑性指数 比贯入阻力 

分 类 号：P642[天文地球—工程地质学]