| 不饱和膨润土中气体渗透研究 |
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| 引用本文： | 刘龙波,王旭辉,张自禄,张建鑫. 不饱和膨润土中气体渗透研究[J]. 水文地质工程地质, 2002, 29(6): 26-29,25 |
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| 作者姓名： | 刘龙波 王旭辉 张自禄 张建鑫 |
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| 作者单位： | 西北核技术研究所,西安,710024 |
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| 摘 要： | 作者对不饱和膨润土中气体渗透情况进行了研究，对实验所使用的膨润土和砂进行了密度、容重、粒重、孔隙度及含水率等特性的表征。实验所建立的气体渗透研究装置可用于测定气体渗透系数，并将其作为材料气体渗透性能的表征，实验结果表明：膨润土的孔隙度和含水率对其渗透系数有十分显著的影响。
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| 关 键 词： | 气体渗透 不饱和膨润土 渗透系数 孔隙度 含水率 密度 容重 粒度 |
| 文章编号： | 1000-3665(2002)06-0026-04 |
Study on gas permeability of the unsaturated bentonites |
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| LIU Long|bo,WANG Xu|hui,ZHANG Zi|lu,ZHANG Jian|xin. Study on gas permeability of the unsaturated bentonites[J]. Hydrogeology and Engineering Geology, 2002, 29(6): 26-29,25 |
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| Authors: | LIU Long|bo WANG Xu|hui ZHANG Zi|lu ZHANG Jian|xin |
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| Abstract: | Gas permeability of the bentonites under different conditions was studied. The bentonites and sands were characterized by microscopic shape, density, bulk density, size distribution, porosity and water content. A setting was constructed for gas permeability of bentonites and sands, and the coefficient of permeability was determined. The results indicate that the porosity and water content of bentonites have a remarkable influence on their permeability. |
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| Keywords: | gas permeability unsaturated bentonite coefficient of permeability |
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