| 多因素耦合诱发冲击地压作用机制 |
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| 引用本文： | 李勇,张韵一,黄亚琼,刘娇霞.多因素耦合诱发冲击地压作用机制[J].有色金属工程,2013,3(3). |
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| 作者姓名： | 李勇 张韵一 黄亚琼 刘娇霞 |
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| 作者单位： | 1.中国矿业大学北京力学与建筑工程学院,1.中国矿业大学北京力学与建筑工程学院,1.中国矿业大学北京力学与建筑工程学院,1.中国矿业大学北京力学与建筑工程学院 |
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| 基金项目： | 国家重点基础研究发展规划(973)项目(2010CB226801)；国家自然科学基金资助项目(50704034)；北京市教育委员会共建项目建设计划；煤炭资源与安全开采国家重点实验室自主研究课题资助； |
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| 摘 要： | 冲击地压是一种复杂的矿山动力失稳破坏现象,其诱因具有多样性和复杂性。鸡西矿区多个煤矿采深已达千米,冲击地压隐患日趋严重。针对鸡西矿区城山煤矿掘进巷道某次冲击地压事故,详细阐述了冲击地压的失稳破坏特征。在此基础上,分析地质构造、原岩应力状态及周边采场扰动等因素对冲击地压的影响,同时巷道掘进扰动及滞后作业产生的应变能积聚也是重要的诱发因素；并结合煤体的冲击倾向性鉴定及物理力学性质试验,分析了诱发冲击地压的内在因素。研究表明,此次冲击地压灾害是由多因素耦合作用诱发。综合考虑诱发因素的特点及城山煤矿实际情况,提出了防治城山煤矿冲击地压灾害的措施。
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| 关 键 词： | 冲击地压 诱发因素 耦合机制 防治措施 |
Multi-factor Coupling Mechanism to Induce Coal Bumps |
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| LI Yong,ZHANG Yunyi,HUANG Yaqiong and LIU Jiaoxia.Multi-factor Coupling Mechanism to Induce Coal Bumps[J].Nonferrous Metals Engineering,2013,3(3). |
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| Authors: | LI Yong ZHANG Yunyi HUANG Yaqiong and LIU Jiaoxia |
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| Affiliation: | School of Mechanics and Civil Engineering,China University of Mining and TechnologyBeijing,Beijing,100083,School of Mechanics and Civil Engineering,China University of Mining and TechnologyBeijing,Beijing,100083,School of Mechanics and Civil Engineering,China University of Mining and TechnologyBeijing,Beijing,100083,School of Mechanics and Civil Engineering,China University of Mining and TechnologyBeijing,Beijing,100083 |
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| Abstract: | Coal bump is a kind of complicated mining dynamic instability failure, and its causes are of diversity and complexity. Jixi mining area has several coal mines with mining depth of more than one thousand meters and the coal bump hazard has become increasingly serious. The failure characteristics of coal bump were expounded in details according to an accident of coal bump occurred in excavation roadway, Chengshan coal mine, jixi mining area. On this basis, the influence of geological structure, stress state of original rock, and the circumjacent stope disturbance on coal bump was analyzed. The strain energy accumulation caused by disturbance and lag of roadway drivage was also an important inducing factor. Besides, the internal factors that induced coal bumps were analyzed combined with the identification of the coal impact orientation and experiments on coal physical and mechanical properties. The results showed this accident of coal bump was induced by multi-factor coupling functions.SComprehensively considering the inducing factors and the actual situations of Chengshan coal mine, prevention measurements of coal bumps were proposed. |
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| Keywords: | coal bumps inducing factor coupling mechanism prevention measurements |
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