| 煤岩体冲击地压储能机理发生条件的研究 |
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| 引用本文： | 武玉梁,秦跃平,刘宏波,王科.煤岩体冲击地压储能机理发生条件的研究[J].采矿与安全工程学报,2008,25(4). |
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| 作者姓名： | 武玉梁 秦跃平 刘宏波 王科 |
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| 作者单位： | 1. 四川省安全科学技术研究院矿山安全研究所,四川,成都,610012
2. 中围矿业大学煤炭资源与安全开采国家重点实验室,北京,100083 |
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| 基金项目： | 围家自然科学基金项目，国家重点肇础研究发展汁划(973)项目，教育部重点项目 |
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| 摘 要： | 为了进一步定量分析冲击地压的发生时间、地点、强度等特征,结合对岩体性状组织损伤弱化的分析,提出了煤岩体发生冲击效应的区域能量方程,从能量的观点对煤岩的力学性质进行了多方面的探究,建立了煤岩损伤本构方程,论述了冲击地压的形成机理.结果表明,冲击地压过程实际上是加速损伤过程,冲击地压的发生有两个必要条件:一是岩石为第Ⅱ类岩石,二是巷道壁面产生足够大的变形,并提出预防冲击地压的措施.
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| 关 键 词： | 应力场 弹性能 冲击地压 |
Energy Storage Mechanism of Rock Burst and Conditions for Its Taking Place |
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| WU Yu-liang,QIN Yue-ping,LIU Hong-bo,WANG Ke.Energy Storage Mechanism of Rock Burst and Conditions for Its Taking Place[J].Journal of Mining and Safety Engineering,2008,25(4). |
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| Authors: | WU Yu-liang QIN Yue-ping LIU Hong-bo WANG Ke |
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| Affiliation: | 1.Institute of Mining Safety;Sichuan Province's Academy of Safety Science and Technology;Chengdu;Sichuan 610012;China;2.State Key Laboratory of Coal Resources and Mine Safety;China University of Mining & Technology;Beijing 100083;China |
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| Abstract: | To further quantitatively analyze characteristics of rock burst,such as time,location,and intensity,the regional energy equation about impact effect on coal-rock body was proposed.From the point of view of energy,we studied the mechanical property of coal-rock body in several aspects,established the damage constitutive equation of coal-rock body,discussed the mechanism of forming the rock burst.The result shows that the rock burst process is practically an accelerated damaging process of coal-rock body and ... |
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| Keywords: | stress field elastic energy rock burst |
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