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黏土类煤系泥岩电化学改性试验 被引量:1

Experiment on Electrochemical Modification of Clay Coaly Mudstone
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摘要 为阐明电化学作用下黏土类煤系泥岩体的物性变化规律,以新生代煤系泥岩的重塑样为研究对象,研究外加直流电场作用下黏土类煤系泥岩体的电流变化与电流降低率,不同区域的电阻率及单轴抗压强度变化,并研究了不同电极材料对这种变化的影响规律。结果表明:在外加直流电场作用下,重塑样的电流均呈现先陡降,然后缓降,最终趋于稳定的过程,但电极材料不同,其电流降低趋势和降低率存在明显差异;3种电极材料不同的重塑样的电阻率与单轴抗压强度均呈现从阴极到阳极递增的趋势,且电极材料为铜时,这一趋势最为明显,其次为铁电极,铝电极的影响最弱。 To clarify the physical properties change of clay coaly mudstone under electrochemical action, taking the remolded samples of argillaceous rock from the Cenozoic coal measure strata as the object, we researched the change of electric current and its reduction rate of the samples under the direct current fields, the difference of electric resistivity and uniaxial compressive strength(UCS) of rock samples from different zones, and the effect laws with the different electrode materials. Results showed that under the direct current field, the electric current value of the sample reduced sharply at the beginning, and then reduced steadily with the increasing of treatment time. But there were obvious differences on the decrease tendency and reduction rate with the different electrode materials; electric resistivity and UCS of rock remolded sample increased from cathode to anode, and the effect of copper electrode for this tendency was most obvious, then the steel electrode, and the effect of the aluminum electrode was worst.
出处 《煤矿安全》 北大核心 2017年第11期61-64,共4页 Safety in Coal Mines
基金 国家自然科学基金资助项目(51004075) 山西省回国留学人员科研资助项目(2016-041) 太原理工大学校基金面上资助项目(2015MS040)
关键词 黏土类煤系泥岩体 电极材料 电化学改性 电阻率 单轴抗压强度 clay coaly mudstone electrode material electrochemical modification electrical resistivity uniaxial compressive strength(UCS)
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