| 综放开采覆岩离层裂隙变化及空隙渗流特性研究 |
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| 引用本文： | 李树刚,钱鸣高,石平五.综放开采覆岩离层裂隙变化及空隙渗流特性研究[J].岩石力学与工程学报,2000,19(5):604-604. |
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| 作者姓名： | 李树刚 钱鸣高 石平五 |
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| 作者单位： | 1. 西安科技学院采矿系,西安,710054
2. 中国矿业大学,徐州,211008 |
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| 基金项目： | 国家自然科学基金! ( 597340 90 ) |
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| 摘 要： | 通过相似模拟实验得出综放开采过程中覆岩离层裂隙变化形态, 给出关键层初次破断前后离层裂隙当量面积和不同裂隙发育区的空隙渗透系数的理论解, 在靖远局魏家地煤矿110 综放面实测基础上, 分析了采空区裂隙区域的空隙渗流特性。
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| 关 键 词： | 离层裂隙当量面积空隙渗透系数瓦斯运移 |
| 收稿时间： | 1999-6-15 |
| 修稿时间： | 1999-8-16 |
STUDY ON BED-SEPARATED FISSURES OF OVERLYING STRATUM AND INTERSTICE PERMEABILITY IN FULLY-MECHANIZED TOP COAL CAVING |
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| Li Shugang,Qian Minggao,Shi Pingwu.STUDY ON BED-SEPARATED FISSURES OF OVERLYING STRATUM AND INTERSTICE PERMEABILITY IN FULLY-MECHANIZED TOP COAL CAVING[J].Chinese Journal of Rock Mechanics and Engineering,2000,19(5):604-604. |
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| Authors: | Li Shugang Qian Minggao Shi Pingwu |
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| Abstract: | Based on the model test of simulated material, the distribution of bed separated fissures is measured in the process of fully mechanized top coal caving.The analytic formulas of eqaivalent areas of bed separated fissures are calculated both ahead of and behind initial rupture of the key strata, and the analytic formulas of interstice permeability coefficients are also calculated for different fissure district. By in situ observation and monitoring in working face 110 # of Weijiadi coal mine, Jingyuan ming bureau, the interstice permeability of gob fissure region is studied. |
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| Keywords: | bed separated fissures equivalent area interstice permeability coefficient gas delivery |
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