Simulation analysis on structure safety of Coal Mine Mobile Refuge Chamber under explosion load
In order to check structural strength of coal mine mobiles refuge chamber, and do security evaluation of the mobile refuge chamber, a refuge chamber model was established, then a finite element method was instituted for it to ensure the refuge chamber would not be severely damaged when gas or coal dust explosion suddenly happened. A triangle shock wave with 1.2MPa over-pressure, 300ms lasting time was settled. Explicit nonlinear dynamic analysis program was used to simulate response of the refuge chamber. The maximum stress was 244MPa, located in central part of sides and tail end of the last capsule. The maximum displacement was 29.32mm, located in central part of sides and tail end of the last capsule. The calculation indicated that the refuge chamber wasnt obviously damaged. It could reliable work to meet safety requirements. Compared with the reported experimental results, the simulation method was verified. Based on analysis, suggestions were put forward for further improving.
coal mine refuge chamber structure safety shock wave FEA
Zhao Huan-juan Qian Xin-ming LI Jing
State Key Laboratory of Explosion Science &Technology, Beijing Institute of Technology, Beijing 1000 State Key Laboratory of High-Effcient Mining and Satefy of Metal Mines Ministry of Education, Univer
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
980-987
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）