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| 近松散含水层溃砂机理及判据研究 | |
| 引用本文： | 许延春,王伯生,尤舜武. 近松散含水层溃砂机理及判据研究[J]. 西安科技大学学报, 2012, 32(1): 63-69 |
| 作者姓名： | 许延春 王伯生 尤舜武 |
| 作者单位： | 中国矿业大学(北京)资源与安全工程学院,北京,100083 |
| 摘 要： | 深厚松散层下煤碳滞压量巨大,提高开采上限是近松散层下安全采煤的重要研究课题。基于海孜煤矿西部井松散层下浅部采区压煤问题,通过相似材料模拟试验及理论分析,从覆岩裂隙破坏发展规律及松散层砂土颗粒性质入手,研究工作面溃砂机理,试验结果和理论分析基本吻合,同时提出工作面溃砂判据,研究结果对合理留设浅部工作面安全保护煤(岩)柱,最大限度提高开采上限具有现实指导意义。 |
| 关 键 词： | 近松散层 相似模拟 浅部采区 溃砂机理 判据 |
Mechanism and criteria of crushing sand near loosening sand stone aquifer |
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| XU Yan-chun , WANG Bo-sheng , YOU Shun-wu. Mechanism and criteria of crushing sand near loosening sand stone aquifer[J]. JOurnal of XI’an University of Science and Technology, 2012, 32(1): 63-69 | |
| Authors: | XU Yan-chun WANG Bo-sheng YOU Shun-wu |
| Affiliation: | (Faculty of Resources & Safety Engineering,China University of Mine & Technology,Beijing 100083,China) |
| Abstract: | There is a huge loss of coal pillars under loosening sand stone aquifer of our county.Reducing the loss of coal pillar to improve the upper limit of mining under loosening sand stone aquifer is an important research topic.Based on the shallow mining area of Haizi Western coal mine,by similar material simulated test and theoretical analysis from the formation of overburden rock fracture development and the property of sand particle,to study the crushing sand mechanism and criteria.Experimental results agree to theoretical analysis,which has an great importance to guide the establishment of coal pillar reasonably and maximize the upper limit of mining. |
| Keywords: | near loosening sand stone aquifer similar simulation shallow mining area crushing sand mechanism criteria |
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