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| 防治冲击地压的应力三向化理论研究及应用 | |
| 引用本文： | 于正兴,姜福兴,桂兵,张安元.防治冲击地压的应力三向化理论研究及应用[J].煤炭科学技术,2011,39(7):1-4,52. |
| 作者姓名： | 于正兴 姜福兴 桂兵 张安元 |
| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京100083 亚利桑那大学,亚利桑那图森85721 2. 北京科技大学土木与环境工程学院,北京,100083 3. 兖矿集团有限公司济宁三号煤矿,山东济宁,272169 |
| 基金项目： | 国家自然科学基金资助项目(50774012); 国家重点基础研究发展计划(973计划)资助项目(2010CB226803); 国家建设高水平大学公派研究生资助项目(留金[2009]3003) |
| 摘 要： | 基于欧拉小挠度理论建立了顶底板压杆稳定模型,煤层卸压将增加顶底板的临界载荷,增加顶底板发生冲击地压的可能性,以此提出了冲击地压治理的应力三向化理论,以济三煤矿163下00工作面为例,对冲击危险区采取了煤层卸压和爆破断底解危措施,通过钻孔窥视仪检验爆破断底的效果,观测孔发生变形、破裂或破碎,证明坚硬底板已经卸压,巷道围岩达到了应力三向化状态。工程实践表明,运用应力三向化理论对冲击危险巷道进行解危,可有效地防治冲击地压。 |
| 关 键 词： | 底板卸压 冲击地压 断底卸压 应力三向化理论 |
Study and Application of Stress Three-Dimensional Theory to Prevention and Control of Mine Pressure Bumping |
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| YU Zheng-xing,JIANG Fu-xing,GUI Bing,ZHANG An-yuan.Study and Application of Stress Three-Dimensional Theory to Prevention and Control of Mine Pressure Bumping[J].Coal Science and Technology,2011,39(7):1-4,52. | |
| Authors: | YU Zheng-xing JIANG Fu-xing GUI Bing ZHANG An-yuan |
| Affiliation: | YU Zheng-xing1,2,JIANG Fu-xing1,GUI Bing3,ZHANG An-yuan1(1.School of Civil and Environment Engineering,University of Science and Technology Beijing,Beijing 100083,China,2.University of Arizona,Tucson 85721,USA,3.Jining No.3 Mine,Yanzhou Coal Mining Group Corporation Ltd.,Jining 272169,China) |
| Abstract: | Based on the Euler deflection theory,a roof and floor pressurized bar stabilization model was established.After the seam pressure released,the critical load of the roof and floor would be increased and the possibility of the mine strata pressure bumping to be occurred would be increased.Therefore,a stress three dimension theory was provided to control the mine pressure bumping.Taking No.163B00 coal mining face in Jisan Mine as an example,the seam pressure releasing,the floor broken with blasting and other d... |
| Keywords: | floor pressure bumping mine pressure bumping pressure releasing with floor broken stress three dimension theory |
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