电阻率指标在膨胀土结构研究中的应用探讨

电阻率指标在膨胀土结构研究中的应用探讨 English Version

摘要: 针对黏性土及非饱和土结构定量分析的困难 ,介绍了能反映土在变形过程中的内部结构特征变化的三个电阻率结构特性指标 :平均结构因子 F 、平均形状因子 f、各向异性系数A。通过电阻率测试技术 ,获取膨胀土样在膨胀过程中电阻率结构特性指标的变化规律 ,建立描述膨胀土、膨胀改良土在膨胀过程中结构变化的电阻率评价方法。同时探索了应用电阻率结构特性指标预测膨胀量的可行性。
- 膨胀土 /
- 结构 /
- 电阻率 /
- 膨胀量
Abstract: In order to study soil microstructure quantitatively,three electrical resistivity indices, average formation factor, average shape factor and anisotropy factor, which can reflect the varieties of soil microstructure, are stated in this paper. Based on the electrical resistivity test during soil swelling, the evaluation system of the variety of soil microstructure is presented. Eventually, the feasibility of application of the electrical resistivity property indices on predicating the swell of expansive soils is discussed.
- expansive soil /
- structure /
- electrical resistivity /
- swelling capacity