突出掘进工作面瓦斯爆炸传播试验研究  

Experimental study on gas explosion propagation of outburst heading face

作　　者：杨书召[1] 张文勇 YANG Shuzhao;ZHANG Wenyong(College of Resources and Security,Henan University of Engineering,Zhengzhou 451191,China)

机构地区：[1]河南工程学院资源与安全工程学院,河南郑州451191

出　　处：《河南工程学院学报（自然科学版）》2023年第1期17-20,共4页Journal of Henan University of Engineering：Natural Science Edition

基　　金：河南工程学院博士基金(062701/D2013019)。

摘　　要：为揭示突出煤层掘进工作面瓦斯爆炸在进风侧防突反向风门和掘进回风巷道内的传播规律,利用管道爆炸装置系统测试预混瓦斯空气爆炸条件下,冲击波在H型掘进巷道全压回风系统复杂管道网络中的传播特性。结果表明:揭煤突出工作面涌出的不同浓度瓦斯与空气混合爆炸,其爆炸超压沿掘进直巷传播的超压峰值总大于回风巷超压值;突出掘进全压通风系统中,联络巷影响回风巷爆炸超压传播,远离工作面方向上的联络巷内爆炸超压值最小;防突风门会造成爆炸冲击波反射叠加,爆炸超压值陡增。对突出掘进全压通风系统发生瓦斯爆炸时爆炸超压对联络巷和风门作用的特性进行研究,可为突出矿井巷道揭煤避灾设计及灾变应急救援提供理论和技术支持。In order to reveal the propagation role of the gas burst of the outburst seam in the reverse air gate and the tunneling return tunnel on the inlet side,the propagation characteristics of the shock wave in the complex pipe network of the H-type tunneling tunnel under the condition of premixed gas air explosion system are tested.The test results show that the different concentration of gas and air burst emitted from the coal outburst working face are mixed.In the full pressure ventilation system,the connection lane affects the explosion overpressure propagation and the explosion overpressure value in the contact lane away from the direction of the working face,and the explosion overpressure value increases sharply.To study the characteristics of explosion overpressure action on contact lane and air gate during gas explosion,can provide theoretical and technical support for the design of coal removal in outburst mine roadway and emergency rescue of disaster change.

关 键 词：瓦斯突出 瓦斯爆炸 爆炸传播 掘进工作面 

分 类 号：TD712[矿业工程—矿井通风与安全]