煤与瓦斯突出过程中孔洞的形成机制  

Formation Mechanism of Holes in Progress of Coal and Gas Outburst

作　　者：汪长明[1] 王振[1] 梁运培[1] 金洪伟[1] 

机构地区：[1]煤炭科学研究总院重庆研究院,重庆400037

出　　处：《矿业安全与环保》2008年第4期60-62,共3页Mining Safety & Environmental Protection

基　　金：国家自然科学基金重点项目(50534080);国家重点基础研究发展计划(973计划)项目(2005CB221504;2006CB202201);煤炭科学研究总院青年创新基金(2005QN35)

摘　　要：通过分析煤与瓦斯突出孔洞周围的应力分布和高压固气混合物的气体作用特征,分析了突出孔洞发生的位置、形状,得出了地应力控制孔洞的破坏范围并引导着孔洞破坏发展方向的结论,解释了突出孔洞的形成机制,达到了更为深入地认识煤与瓦斯突出机制的目的。In this paper,the occurrence shape and position of coal and gas outburst holes are discussed by analyzing the stress distribution around outburst holes and the gas effect characteristic of mixtures of solid and gas at the high pressure.It comes the conclusions that the ground stress controls the destruction range of holes and guides the developing direction of the holes.The formation mechanism of the holes has been explained,and this thus achieves further understanding of coal and gas outburst mechanism.

关 键 词：煤与瓦斯突出 孔洞 高压固气混合物 形成机制 

分 类 号：TD713[矿业工程—矿井通风与安全]