煤系泥岩电化学改性试验  

Experiment on Electrochemical Modification of Coal Measures Mudstone

作　　者：白金波 郭星星 张海洋 杨攀 柴肇云[1] BAI Jinbo;GUO Xingxing;ZHANG Haiyang;YANG Pan;CHAI Zhaoyun(Mining Technology Institute,Taiyuan University of Technology,Taiyuan,Shanxi 030024,China;Chengzhuang Coal Mine Drilling Team of Jincheng Coal Group,Zezhou,Shanxi 048021,China)

机构地区：[1]太原理工大学采矿工艺研究所,山西太原030024 [2]山西晋煤集团成庄矿钻探队,山西泽州县048021

出　　处：《矿业研究与开发》2019年第11期115-119,共5页Mining Research and Development

基　　金：国家自然科学基金资助项目（51674173）;山西省回国留学人员科研基金资助项目（2016-040）;山西省自然科学基金面上资助项目（201601D102038）

摘　　要：为阐明电化学作用下电解液浓度对煤系泥岩物性变化的影响规律,以新生代煤系泥岩为研究对象,采用自行研制的渗滤式软岩电化学改性试验装置进行电化学改性试验,研究了不同电解液浓度下泥岩试件的自由膨胀性、吸水性、力学强度等的变化规律。试验结果表明,随着电解液浓度的升高泥岩试件的膨胀率及吸水率均呈现降低的趋势;随着电解液浓度的升高,泥岩试件的表面完整性有一定程度提高,泥岩试件的电阻率呈现降低的趋势;电解液浓度与试件单轴抗拉强度呈现出一定程度的正相关。To clarify the influence rule of electrolyte concentration on the physical properties of coalmeasures mudstone under the electrochemical action,the cenozoic coal measures mudstone was taken as a research object.Then,the electrochemical modification test was carried out by a self-developed percolation electrochemical modification test device for soft rock.And the variation rules of free expansion,water absorption and mechanical strength of mudstone specimens under different electrolyte concentrations were studied.The results showed that with the increase of electrolyte concentration,the expansion rate and water absorption of mudstone specimens decreased,the surface integrity of mudstone specimens increased to a certain extent,and the resistivity of mudstone specimens decreased.Besides,the electrolyte concentration and the uniaxial tensile strength of the specimens showeda certain degree of positive correlation.

关 键 词：煤系泥岩 电化学改性 电解液浓度 膨胀率 单轴抗拉强度 

分 类 号：TD82[矿业工程—煤矿开采]