The numerical analysis of borehole blasting and application in coal mine roof-weaken
Systematically analyzed the rock breakage process in borehole blasting, put forward the dynamic and static press breakage principle of rock borehole blasting. Use AUTODYN software to make borehole blasting numerical simulation, educed the single and double borehole blasting of rock breakage process and analyzed the borehole non-coupling charge blasting effect. At last, comparing theoretical analysis with numerical simulation methods in roof-weaken of coal mine by blasting, we got that the scene blasting fracture and monitoring coal mine press regulation verified the conclusion of study. The method not only plays a positive role in perfecting borehole blasting theory, but also verifies that the deep hole blasting in coal mine roof-weaken method is effective and feasible.
borehole blasting AUTODYN coal mine roof-weaken numerical analyse
Li Chun-rui Kang Li-jun Qi Qing-xing Mao De-bing Liu Quan-ming Xu Gang
Coal Mining & Designing Branch, Coal Research Institute, Beijing 100013, China Coal Research Institu Coal Research Institute, Beijing 100013, China Coal Mining & Designing Branch, Coal Research Institute, Beijing 100013, China Tiandi Coal Co., Ltd.
国际会议
The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)
徐州
英文
1-9
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）