| 采场下伏不同距离被保护层应力场演化特征研究 |
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| 引用本文： | 黄旭超. 采场下伏不同距离被保护层应力场演化特征研究[J]. 世界科技研究与发展, 2012, 0(2): 217-219 |
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| 作者姓名： | 黄旭超 |
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| 作者单位： | 1. 瓦斯灾害监控与应急技术国家重点实验室,重庆400037
2. 中国煤炭科工集团重庆研究院,重庆400037 |
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| 基金项目： | “十二五”国家科技重大专项一煤层气与煤炭协调开发关键技术（2008ZX05040）资助 |
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| 摘 要： | 为深入了解开采上保护层的卸压特征,通过开采上保护层底板煤岩体应力变化的数值模拟,对不同距离被保护层的应力变化情况进行了研究.研究表明:随着层间距的增大,被保护煤层的卸压范围越小,卸压程度越低,被保护煤层卸压范围内应力变化也由“W”型向“V”形转化
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| 关 键 词： | 开采上保护层 应力 卸压 |
Study on Stope underlying Different Distance Protected Layer Stress Field Evolution Features |
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| HUANG Xuchao. Study on Stope underlying Different Distance Protected Layer Stress Field Evolution Features[J]. World Sci-tech R & D, 2012, 0(2): 217-219 |
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| Authors: | HUANG Xuchao |
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| Affiliation: | HUANG Xuchao (1. National Key Laboratory of Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing 400037; 2. Chongqing Research Institute of China Coal Technology and Engineering group, Chongqing 400037 ) |
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| Abstract: | In order to deeply Understand mining upper protective layer pressure relief features, protected layer stress change is studied by different interlayer distance, through mining upper.protective layers floor coal rock mass stress numerical simulation. The results show that：with the increase of interlayer distance, protected seam pressure relief range is smaller, pressure relief rate is lower, the protected coal seam pressure relief range stress changing from ＂W＂ to ＂V＂ shape transformation. |
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| Keywords: | mining upper protective layers stress pressure relief |
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