| 不规则煤柱作用下工作面开采的三维数值模拟 |
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| 引用本文： | 郑百生,谢文兵,窦林名,高明仕.不规则煤柱作用下工作面开采的三维数值模拟[J].煤炭学报,2006,31(2):137-140. |
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| 作者姓名： | 郑百生 谢文兵 窦林名 高明仕 |
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| 作者单位： | 中国矿业大学 能源与安全工程学院，江苏 徐州，221008 |
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| 基金项目： | 国家自然科学基金资助项目(50490273,50074030)，教育部博士点专项基金资助项目(20030290017) |
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| 摘 要： | 通过对三河尖煤矿9202工作面实际开采情况的模拟，分析了近距离煤层或煤层群开采时，上部煤层开采后遗留的煤柱对下部煤层开采的影响.模拟显示下部煤层工作面推进到煤柱下方时形成的应力集中远大于工作面超前支承压力和煤柱引起的支承压力的简单叠加，形成的高应力区极易引发诸如冲击矿压的矿井灾害；指出在近距离煤层或煤层群开采时，要合理布置工作面的位置，根据上部煤层开采的时空关系来合理布置下部煤层工作面的回采巷道，并尽量避免在煤柱正下方采煤.
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| 关 键 词： | 近距离煤层或煤层群 应力集中 冲击矿压 三维数值模拟 |
| 文章编号： | 0253-9993(2006)02-0137-04 |
| 收稿时间： | 08 17 2005 12:00AM |
| 修稿时间： | 2005年8月17日 |
3D simulation on caving of face affected by irregular pillor |
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| ZHENG Bai-sheng,XIE Wen-bing,DOU Lin-ming,GAO Ming-shi.3D simulation on caving of face affected by irregular pillor[J].Journal of China Coal Society,2006,31(2):137-140. |
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| Authors: | ZHENG Bai-sheng XIE Wen-bing DOU Lin-ming GAO Ming-shi |
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| Affiliation: | School of Mining and Safety Engineering, China University of Mining and Technology, Xuzhou 221008, China |
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| Abstract: | Based on the mining geological condition of a practical long-wall mining panel in 9202 face,Sanhejian Mine,influence of pillar remained after mining of upper coal seam to the mining of lower coal seam was analyzed in adjacent coal seam.Stress which is higher than the sum of the support stresses caused by pillar and working face was revealed by means of 3D coupled numerical modeling,and rock burst will be broke out under the high stress situation.Reasonable location of the lower coal seam's working face and railways and avoiding mining under the pillar was pointed out in the adjacent coal seams. |
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| Keywords: | adjacent coal seams stress concentration rock burst 3D simulation |
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