岩土体电阻率模型研究进展  

Research Progress of Resistivity Models for Geotechnical Engineering

作　　者：储亚[1,2] 刘松玉[1,2] 蔡国军[1,2] 边汉亮[1,2] 

机构地区：[1]东南大学岩土工程研究所,江苏南京210096 [2]江苏省城市地下工程与环境安全重点实验室(东南大学),江苏南京210096

出　　处：《南京工程学院学报（自然科学版）》2017年第2期1-9,共9页Journal of Nanjing Institute of Technology(Natural Science Edition)

基　　金：国家自然科学基金重点项目(41330641);国家自然科学基金项目(41202203)

摘　　要：电阻率对岩土体等多孔隙介质内部结构探测的功能被广泛应用在原位测试中.但对于多孔隙岩土体介质的电阻率模型却一直存在着广泛的争论.很多学者基于试验研究提出了相应的电阻率应用模型,但是应用性和广适性得不到保证.Archie得出经典电阻率模型以来,各学者对不同岩土体以及特殊岩土体的电阻率模型研究进行了系统的总结,分析不同电阻率模型的应用条件和局限性.结果表明:电阻率可以作为岩土体特性评价的重要手段,但是由于土质条件的复杂性以及影响因素的多样性,需要对大量的试验进行总结;Archie电阻率模型可以较好的解释土体电阻率变化的物理意义,可以以此公式为基础进行拓展.最后对目前的电阻率模型的应用进行了总结,并给出今后电阻率发展的相应建议,以期为岩土工程测试研究提供理论基础.Thanks to its outstanding function to reveal the internal structure of rock mass, the resistivity method is widely used in in-situ tests. But there is a general discussion on resistivity model of porous medium rock and soil mass. Based on the experimental research results, many scholars put forward the corresponding application model of resistivity. But the wide applicability and eligibility of these models are not guaranteed. From the classical resistivity model concluded by Archie, the research in different natural and special rock mass of various scholars was summarized in this article. And the application conditions and limitations of those different models were analyzed. It is shown that resistivity can be used as an important means for geotechnical engineering evaluation, and the physical significance of the resistivity change can be accounted for by Archie model. But due to the complexity of soil conditions and diversity of influence factors, a large number of trials were needed. Finally, corresponding suggestions on the development of resistivity were given to provide help for the research into geotechnical engineering testing.

关 键 词：多孔隙介质 砂性土 粘性土 污染土 电阻率模型 

分 类 号：TU411[建筑科学—岩土工程]