改性残积土抗压强度与电阻率和纵波波速关系研究

为了研究改性残积土抗压强度与电阻率、纵波波速之间的关系，采用石灰、粉煤灰两种改性材料按不同含量对其进行单掺、双掺，并进行电阻率、纵波波速和抗压强度的测试，结合试验结果进行回归分析。试验研究结果表明:抗压强度与电阻率、纵波波速之间均存在指数关系，但相关性不太好；含水量、改性材料含量的变化对抗压强度与电阻率关系有一定的影响，并且物理性质、改性材料的变化影响着抗压强度、电阻率、纵波波速的变化。

Study on Relations between Compressive Strength of Modified Residual Soil,Electric Resistivity and Longitudinal Wave Velocity

In order to study the relations between compressive strength of modified residual soil,electric resistivity and longitudinal wave velocity,two materials,lime and fly ash,are mixed as the modifier into the soil individually or doubly in different proportion.Then the electric resistivity,longitudinal wave velocity and compressive strength are detected and the regressive analysis is carried out with the test results.The study result shows that the compressive strength has exponential relations to the electric resistivity and longitudinal wave velocity respectively but the relevance is poor;the change of water content and modifier proportion will affect the relation between compressive strength and electric resistivity to a certain extent;and the change of physical properties and modifier will have influence on the change of compressive strength,electric resistivity and longitudinal wave velocity.