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| 狭窄煤柱岩爆的影响因素分析 | |
| 引用本文： | 赵志刚,谭云亮,潘岳,王勇.狭窄煤柱岩爆的影响因素分析[J].矿业研究与开发,2006,26(4):23-25,43. |
| 作者姓名： | 赵志刚 谭云亮 潘岳 王勇 |
| 作者单位： | 1. 山东科技大学,资源与环境工程学院,山东,青岛市,266510;矿山灾害预防控制省部共建教育部重点试验室(山东科技大学),山东,青岛市,266510 2. 青岛理工大学,土木工程学院,山东,青岛市,266520 3. 胶南市建管处质检站,山东,青岛市,266400 |
| 基金项目： | 国家自然科学基金重点项目（50534080）;教育部重点实验室开放基金资助. |
| 摘 要： | 将顶板视为中点有支承的弹性固结梁,将煤柱视为支座,形成了顶板-煤柱系统。在煤岩体本构关系中考虑应变梯度的影响,得到了煤柱的失稳判据,进而分析了煤柱岩爆的影响因素。分析表明,顶板的跨径、顶板的抗弯刚度、煤柱的尺寸、煤柱的脆性、煤岩材料的均匀性和矿物颗粒的大小是煤柱岩爆的重要影响因素。 |
| 关 键 词： | 应变梯度理论 煤柱 岩爆 |
| 文章编号： | 1005-2763（2006）04-0023-03 |
| 收稿时间： | 2005-12-14 |
| 修稿时间： | 2005-12-14 |
Analysis on Influence Factors of Rock Burst in Narrow Coal Pillar |
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| Zhao Zhigang,Tan Yunliang,Pan Yue,Wang Yong,Qingdao,Shandong,Chlna;. College of Civil Engineering,QingdaoTechnological University,Qingdao,Shandong,China ;. Quality Inspect Station of Jiaonan city,Qingdao,Shandong,China.Analysis on Influence Factors of Rock Burst in Narrow Coal Pillar[J].Mining Research and Development,2006,26(4):23-25,43. | |
| Authors: | Zhao Zhigang Tan Yunliang Pan Yue Wang Yong Qingdao Shandong Chlna; College of Civil Engineering QingdaoTechnological University Qingdao Shandong China ; Quality Inspect Station of Jiaonan city Qingdao Shandong China |
| Affiliation: | 1. Institute of Resource and Environment Engineering,Shandong University of Science and Technology, Qingdao, Shandong 266510, .China;2. Key Laboratory of Mine Disaster Prevention and Control( Shandong University of Science and Technology |
| Abstract: | The roof of cavern is regarded as an elastic beam with support at the midpoint and the coal pillars are regarded as bearings so as to establishing a cavern roof-coal pillar system.The influence of strain gradient is taken into account in the constitutive relation of coal or rock,the instability criterion of coal pillar is given,the influence factors of rock burst in coal pillar are analyzed.It is indicated that the span and flexural stiffness of cavern roof,the dimension and brittleness of coal pillar,the uniformity of coal material and the size of mineral grain are the important factors influencing rock burst of coal pillar. |
| Keywords: | Strain gradient theory Coal pillar Rock burst |
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