摘要
煤矿瓦斯爆炸极具破坏性,抑防瓦斯爆炸对煤矿安全生产的重要性不言而喻。利用一些基本假设,对瓦斯爆炸产生的冲击波的传播规律进行了分析研究。推导出强、弱冲击波传播过程中波阵面参数之间的关系式。同时,推导出瓦斯爆炸过程中形成的柱面冲击波超压等参数随距离传播和衰减规律。通过理论计算数据和数值模拟数据对比研究和对照分析,总体上数据之间的吻合程度较好。
Coal mine can be damaged by extremely strong gas explosion,and the importance of suppressing gas explosion in coal mine safety production is self-evident.The basic assumptions are used to analyze the shock wave propagation laws and the strength characteristics during gas explosion.The expressions among wave-front parameters are derived during strong and weak shock wave propagation process.Meanwhile,during the gas explosion,the weaken laws of cylinder shock wave and overpressure parameters with distance of propagating are deduced.Through comparison and analysis of theoretical calculations and numerical simulation data,the data are almost identical.
出处
《煤矿安全》
CAS
北大核心
2013年第4期1-5,共5页
Safety in Coal Mines
基金
国家重点基础研究发展计划(973计划)资助项目(2005CB221506)
国家自然科学基金重点资助项目(50534090)
横向课题<煤矿井下主动抑爆技术研究与应用>资助
关键词
传播规律
冲击波
动力学
巷道
瓦斯爆炸
propagation laws
shock wave
dynamics
roadway
gas explosion
