| 采动煤体渗透率示踪监测及演化规律 |
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| 引用本文： | 邓志刚,齐庆新,李宏艳,彭永伟.采动煤体渗透率示踪监测及演化规律[J].煤炭学报,2008,33(3):273-276. |
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| 作者姓名： | 邓志刚 齐庆新 李宏艳 彭永伟 |
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| 作者单位： | 天地科技股份有限公司 开采所事业部，北京，100013 |
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| 基金项目： | 国家自然科学基金重点资助项目(2005CB22150301) |
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| 摘 要： | 以潞安矿区五阳煤矿7601工作面为观测现场，利用自主研发的采动煤体渗透率实时监测系统现场实测了采动条件下煤体渗透率的变化情况.通过对监测结果的分析，认为在采动过程中煤体渗透率的变化主要经历了缓慢增加-突然下降-突然增加3个阶段，产生这一现象的原因是：在采动条件下，煤体分别经历了弹性变形-塑性变形-卸载膨胀3个过程，在不同阶段煤体的属性发生了很大变化，使其渗透率随之发生改变.
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| 关 键 词： | 采动煤体 渗透率 SF6示踪技术 实时监测 |
| 文章编号： | 0253-9993(2008)03-0273-04 |
| 修稿时间： | 2007年4月19日 |
Evolution law of mining coal permeability by real-time tracer monitoring system |
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| DENG Zhi-gang,QI Qing-xin,LI Hong-yan,PENG Yong-wei.Evolution law of mining coal permeability by real-time tracer monitoring system[J].Journal of China Coal Society,2008,33(3):273-276. |
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| Authors: | DENG Zhi-gang QI Qing-xin LI Hong-yan PENG Yong-wei |
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| Abstract: | Selected the 7601 coal caving face in Wuyang coal mine,Lu' an Group Company for the observation site,studied the alteration of coal permeability during mining with SF6 tracer technique.It is found that there are three stages during mining:increasing slowly,decreasing quickly and increasing quickly.The reason for this phe- nomenon is there are three stages for coal deformation:elastic deformation,plastic deformation and plastic failure, in different stages the porosity are different,and the permeability is changing too. |
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| Keywords: | mining coal permeability SF_6 tracer technique real-time monitoring |
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