急斜煤层浅部矿震机理及防治
|
摘要
为了防治急斜煤层浅部综放开采出现的矿震灾害及深刻理解其机理,采用物理相似模拟实验进行了研究。研究结果表明,急斜煤层浅部矿震机理为单个煤柱失效后,进而引起采场煤柱连锁失稳,最终导致巨厚覆岩大面积垮落,产生矿震,其本质是空间结构失稳造成,由此提出"空间结构破坏型矿震"观点;结合生产实际,提出控制此类矿震的关键在于控制综放段上覆浮矸厚度,留设足够厚度的隔离煤柱和提前预爆破顶板的防治措施。
In this study,a physical simulation experiment was conducted to investigate the mine-induced earthquake phenomenon. The purpose of this study is to understand the mechanism of mine-induced earthquakes and prevent the disaster of mine-induced earthquakes in steep coal seam. The mechanism of the mine-induced earthquake was concluded that if a single coal pillar is disabled,all coal pillars will be soon disabled,and then eventually huge thick overlying rock will collapse and cause the earthquake. The nature of the problem is the disabled space frame. Therefore the study suggests a new theory of "space frame destructed mine-induced earthquake". In mining practice,the key in controlling mine-induced earthquake is to control the thickness of waste rock pile above the section of fully mechanized long-wall top caving. The prevention measures are proposed as leaving coal pillars and blasting roof in advance to enable appropriate thickness of waste rock pile.
In this study,a physical simulation experiment was conducted to investigate the mine-induced earthquake phenomenon. The purpose of this study is to understand the mechanism of mine-induced earthquakes and prevent the disaster of mine-induced earthquakes in steep coal seam. The mechanism of the mine-induced earthquake was concluded that if a single coal pillar is disabled,all coal pillars will be soon disabled,and then eventually huge thick overlying rock will collapse and cause the earthquake. The nature of the problem is the disabled space frame. Therefore the study suggests a new theory of "space frame destructed mine-induced earthquake". In mining practice,the key in controlling mine-induced earthquake is to control the thickness of waste rock pile above the section of fully mechanized long-wall top caving. The prevention measures are proposed as leaving coal pillars and blasting roof in advance to enable appropriate thickness of waste rock pile.
引文
[1]刘宗燕,纪洪广.鲍店煤矿矿山地震G-R关系分析[J].矿业快报,2007(3):36-38.
[2]李治平,蔡美峰.李铁等矿山地震能量极值分布的研究及其应用[J].矿冶工程,2002,22(3):41-44.
[3]邹德蕴,姜福兴.煤岩体中储存能量与冲击地压孕育机理及预测方法的研究[J].煤炭学报,2004,29(2):159-162.
[4]王来贵,刘向峰.采场大面积悬顶系统贮能及释放研究[J].辽宁工程技术大学学报,2003,22(6):767-768.
[5]潘一山,赵扬锋,马瑾.中国矿震受区域应力场影响的探讨[J].岩石力学与工程学报,2005,24(16):2847-2853.
[6]李永靖,张向东.矿山地下岩层移动变形用于预测矿震的研究[J].中国矿业,2005,14(10):66-68.
[7]谷新建.用突变理论分析矿山冒落型地震机理[J].中国安全科学学报,2003,l13(10):8-10.
[8]谷新建.冒落型矿震成因机理的研究[J].中国安全科学学报,2002,l12(2):60-63.
[9]陈尚本,齐庆新.冲击地压、岩爆、矿震的关系及其数值模拟研究[J].岩石力学与工程学报,2003,22(11):1852-1858.
[10]西安科技大学,新疆阜康西沟煤焦公司.新疆西沟煤矿采煤方法研究[R].西安:西安科技大学,2004.
[11]林韵梅.实验岩石力学[M].北京:煤炭工业出版社,1984.
[2]李治平,蔡美峰.李铁等矿山地震能量极值分布的研究及其应用[J].矿冶工程,2002,22(3):41-44.
[3]邹德蕴,姜福兴.煤岩体中储存能量与冲击地压孕育机理及预测方法的研究[J].煤炭学报,2004,29(2):159-162.
[4]王来贵,刘向峰.采场大面积悬顶系统贮能及释放研究[J].辽宁工程技术大学学报,2003,22(6):767-768.
[5]潘一山,赵扬锋,马瑾.中国矿震受区域应力场影响的探讨[J].岩石力学与工程学报,2005,24(16):2847-2853.
[6]李永靖,张向东.矿山地下岩层移动变形用于预测矿震的研究[J].中国矿业,2005,14(10):66-68.
[7]谷新建.用突变理论分析矿山冒落型地震机理[J].中国安全科学学报,2003,l13(10):8-10.
[8]谷新建.冒落型矿震成因机理的研究[J].中国安全科学学报,2002,l12(2):60-63.
[9]陈尚本,齐庆新.冲击地压、岩爆、矿震的关系及其数值模拟研究[J].岩石力学与工程学报,2003,22(11):1852-1858.
[10]西安科技大学,新疆阜康西沟煤焦公司.新疆西沟煤矿采煤方法研究[R].西安:西安科技大学,2004.
[11]林韵梅.实验岩石力学[M].北京:煤炭工业出版社,1984.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心