| 不同倾角煤层开采覆岩破坏规律数值模拟 |
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| 引用本文： | 赵国荣,杨伟峰,吉育兵,沈丁一. 不同倾角煤层开采覆岩破坏规律数值模拟[J]. 矿业研究与开发, 2010, 30(6): 4-5,45 |
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| 作者姓名： | 赵国荣 杨伟峰 吉育兵 沈丁一 |
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| 作者单位： | 中国矿业大学,资源与地球科学学院,江苏,徐州市,221116;中国矿业大学,资源与地球科学学院,江苏,徐州市,221116;中国矿业大学,资源与地球科学学院,江苏,徐州市,221116;中国矿业大学,资源与地球科学学院,江苏,徐州市,221116 |
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| 基金项目： | 国家自然科学基金青年科学基金项目(40802076); 江苏省普通高校研究生科研创新计划项目(CX07B_148z) |
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| 摘 要： | 通过数值模拟,分析了不同倾角煤层开采对覆岩破坏及导水裂隙带发育规律的影响。根据位移等值线图分析得出,随着煤层倾角逐渐增大其沉降位移有增大趋势;根据应力图分析可知,导水裂隙带的厚度随着煤层倾角的增大,也呈现一定程度的增加趋势。该结论为工程实践和采矿安全提供了理论依据。
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| 关 键 词： | 覆岩 导水裂隙带 数值模拟 煤层倾角 |
Numerical Simulation of the Law of Overburden Failure in Mining Coal Seams with Different Dip Angles |
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| Zhao Guorong,Yang Weifeng,Ji Yubing and Shen Dingyi. Numerical Simulation of the Law of Overburden Failure in Mining Coal Seams with Different Dip Angles[J]. Mining Research and Development, 2010, 30(6): 4-5,45 |
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| Authors: | Zhao Guorong Yang Weifeng Ji Yubing Shen Dingyi |
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| Affiliation: | Zhao Guorong,Yang Weifeng,Ji Yubing,Shen Dingyi (School of Resources and Geoscience,China University of Mining and Technology,XuZhou,Jiangsu 221116,China) |
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| Abstract: | Through the numerical simulation in this paper,the influences of mining coal sea ms with different dip angles on the overburden failure and the development law of water-flow fractured zone was analyzed. The analysis on the displacement conto ur lines showed that with the seam dip angle increasing,the subsidence displacem ent was increasing gradually.The analysis on the stress diagrams showed with the increase in dip angle of coal seam,the thickness of the water-flow fractured zo ne also increased in a certa... |
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| Keywords: | Overburden Water-flow fractured zone Numerical simulation Dip angle of coal seam |
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