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冒落矿震动能释放及其破坏性的研究
A Study on Kinetic-energy Releasing and Destructiveness of Cave-in Mine Tremor
【摘要】 未处理空区或暗空场冒落矿震触发系统地压是我国矿山灾难地压的主要形式。冒落矿震触发系统地压灾害是一个静 动 静耦合作用的过程 ,其中冒落矿震动能释放的大小及其破坏过程的研究是整个研究的关键。建立了冒落矿震动能释放的大小及其破坏过程的研究方法及公式体系 ,首次综合考虑了岩体强度、碎胀系数、侧向塌陷等诸多因素对冒落矿震动能释放大小的耦合作用 ,并将岩体碎胀系数引入动能计算公式体系中。
【Abstract】 Systematical earth pressure induced by cave-in mine tremor of untreated hollow regions or unknown mine-out regions is a main form of disasterous earth pressure in China’s mines. This disaster results from a static-dynamic-static coupled effect. The kinetic energy rebeasing and destructiveness of cave-in mine tremor is the key to the research on systematical earth pressure disasters. In the article, the research methods and formula system of kinetic energy releasing and destructiveness of cave-in mine tremor are established. Comprehensive consideration is given to the coupled effect of rock strength, coefficient of bulk increase and lateral caving, etc on kinetic energy releasing of cave-in mine tremor for the first time and the coefficient of bulk increase is introduced into the system of calculating kinetic energy.
【Key words】 cave-in mine tremor; systematical earth pressure; coupled effect; kinetic energy; coefficient of bulk increase; dynamic effect;
- 【文献出处】 矿冶工程 ,Mining and Metallurgical Engineering , 编辑部邮箱 ,2004年03期
- 【分类号】TD327
- 【被引频次】16
- 【下载频次】178