黏性土场地的工程特性评价是工程师们所关注的重要研究课题之一。电阻率法在环境监测、地质勘查等方面具有全面性、原位无损、速度快等特点被广泛应用，对上海地区典型的5个黏性土场地进行电阻率测井以及相应工程特性测试，测试分析了电阻率随场地黏性土层的含水率和密度等状态参数的变化规律，并提出了基于电阻率的黏性土工程特性评价方法。研究表明，电阻率随含水率减小呈指数函数增加，随密度增加呈线性函数降低；与土颗粒比表面积相关的土的塑性指数与电阻率之间呈指数函数关系；剪切特性和压缩特性都与黏性土的孔隙特性相关，而电阻率是土的孔隙特性反映指标之一，电阻率与黏聚力和压缩系数呈指数函数关系，与摩擦角和压缩模量呈线性函数关系。根据上述分析得出电阻率可以作为黏性土场地的工程特性评价指标。

Evaluation of the cohesive soil ground engineering properties is one of the important research subjects. Many engineers take their attention to this subject. Resistivity method is widely used in the environmental monitoring and geological exploration, which has the characteristics of comprehensive, in-situ nondestructive and fast. Five typical cohesive soils sites in Shanghai are used in this article. And the resistivity log test and engineering properties test are performed. The change rule of the resistivity, water content and density is analyzed; and the evaluation method of engineering properties method based on resistivity is presented. It is shown that from the researches that the resistivity increases with moisture content in an exponential function, and decreases with the density in a linear function. There is an exponential function relation between resistivity and plasticity index. Meanwhile, the shear and compression properties are related to the pore properties of cohesive soil; and the resistivity is one of the parameters of soil pore characteristics. There is an exponential function relation among resistivity, cohesive force and compression coefficient; and a linear function relation among resistivity, friction angle and compression modulus. It is concluded that the resistivity can be used as an index to evaluate the engineering properties of cohesive soil site based on above analysis.