摘要
由于多相土石复合介质的土石颗粒特性、含石量、含水量、压实程度等均对电阻率特性产生重要影响,且各影响因素之间具有关联性,使得多相土石复合介质的导电性能变得极其复杂。基于现有的非饱和纯土介质和岩石介质的电阻率模型,构建了土石复合介质导电特性的物理模型,推导了土石复合介质的电阻率大小和物理特征参数之间的理论关系。研究表明:基于多相土石复合介质电阻率测试技术可以针对土石填方工程质量评价的不同需要反演土石复合介质特征参数。
The earth-rock particles features, rock content, moisture content and compaction degree of the multiphase soil - stone composite medium have a great important effect on the electrical resistivity characteristics. Because of the correlation between each factor, the conductivity of multiphase soil-stone composite medium became complicated. Based on the current electrical resistivity models of unsaturated and pure soil and rock media, the physical model of the conductivity for multiphase earth-rock composite medium was established, and the theoretic relationship between electrical resistivity and the physical characteristic parameters was presented. According to the research,the feature parameter of earth-rock composite medi- um is proposed in different needs based on resistivity testing technique.
出处
《重庆交通大学学报（自然科学版）》
CAS
北大核心
2014年第2期90-94,99,共6页
Journal of Chongqing Jiaotong University(Natural Science)
基金
国家自然科学基金项目(50779081
51279219)
江西省交通厅科技项目(2010C0016)
关键词
水利工程
土石复合介质
电阻率
hydraulic engineering
soil-stone composite medium
electrical resistivity
