摘要
煤岩动力灾害发生的前提条件是煤岩体发生变形破坏。根据大量低围压压缩实验总结出煤岩的2种破坏形式,并分析了煤岩动力灾害的发生机理。应用能量极小原理和变分原理研究了煤岩动力灾害的能量失稳判据。以冲击地压为例,分析了其发生的机理;根据能量失稳判据,研究了煤体发生冲击地压的条件。最后,分析了防治煤岩动力灾害的理论依据。
The precondition for the occurrence of rock or coal dynamical disaster is the deformation and failure of coal or rock. Two types of failure modes of coal or rock were concluded by a number of compression experiments at low enclosed pressure,and meanwhile the occurrence mechanism of rock or coal dynamical disasters was analyzed. A destabilizing criterion for energy in rock or coal dynamical disaster was studied with both the minimum energy theory and variation principle. The paper,taking the coal bump as an example,analyzed its inducing mechanism and studied the essential conditions for its occurrence according to the destabilizing criterion for the energy. Finally,the paper analyzed the theoretical basis for the prevention and control of coal or rock dynamical disaster.
出处
《矿业安全与环保》
北大核心
2010年第2期17-19,共3页
Mining Safety & Environmental Protection
基金
国家重点基础研究发展计划(973计划)项目(2005CB221501-05)
国家自然科学基金资助项目(50504008)
河南理工大学博士基金项目(B2009-66)
