环境工程学报2025，Vol.19Issue(2)：437-445,9.DOI:10.12030/j.cjee.202401137
盐渍红黏土电阻率影响因素的试验分析
Experimental study on factors affecting electrical resistivity of saline red clay
摘要
Abstract
The existence of saline soil not only affects the growth of plants,but may also cause some engineering geological problems.The electrical resistivity method is widely used in the pollution detection of various types of soil due to its simplicity,efficiency,accuracy,and reliability characteristics.The saline red clay was taken as research object,and through laboratory experiments,the influence laws of NaCl concentration,moisture content,and porosity changes on electrical resistivity were compared and analyzed.Based on orthogonal experiment,the primary and secondary orders of their effects were determined.Finally,based on Archie's formula and experimental results,a prediction model for electrical resistivity was established based on the combined effect of these three influencing factors.The results indicated that its electrical resistivity was inversely related to the NaCl concentration in a linear equation,while it exhibited power function relationships with moisture content and porosity.Among these three factors,the electrical resistivity was negatively correlated with NaCl concentration and water content,and positively correlated with porosity.The influence order was NaCl concentration＞moisture content＞porosity.The predictive electrical resistivity values calculated based on the constructed electrical resistivity prediction model showed good agreement with the measured electrical resistivity values.This model has some application value for the detection,investigation,and evaluation of saline red clay before restoration work.关键词
盐渍红黏土/电阻率/NaCl浓度/正交试验/电阻率预测模型Key words
saline red clay/electrical resistivity/NaCl concentration/orthogonal experiment/electrical resistivity prediction model分类
环境科学引用本文复制引用
杨晨,潘剑伟,钱伦,槐玉鹿,刘懿,陈开银,李涛..盐渍红黏土电阻率影响因素的试验分析[J].环境工程学报,2025,19(2):437-445,9.基金项目
贵州省科技计划资助项目([2020]1Y173) （[2020]1Y173）
国家自然科学基金青年基金资助项目(42004122) （42004122）
