【摘要】：為確定巷道內(nèi)瓦斯煤塵爆炸環(huán)流壓力與反射壓力的大小,采用爆炸力學(xué)理論分析和試驗(yàn)方法,在試驗(yàn)管道和大型試驗(yàn)巷道內(nèi)測(cè)試環(huán)流壓力與反射壓力強(qiáng)度的變化規(guī)律。理論分析表明,極弱沖擊波環(huán)流壓力大約比反射壓力小一半;極強(qiáng)沖擊波反射超壓是環(huán)流超壓的8~23倍。實(shí)驗(yàn)結(jié)果表明,理論計(jì)算值與實(shí)驗(yàn)值基本吻合,沖擊波固壁反射峰值超壓作用于相對(duì)傳播方向垂直固定物體上的傷害效應(yīng)遠(yuǎn)大于水平方向,揭示了反射超壓是井下爆炸事故引起財(cái)產(chǎn)和人員嚴(yán)重破壞及傷害的原因。
[Abstract]:In order to determine the circulation pressure and reflection pressure of gas and coal dust explosion in roadway, the variation law of circulation pressure and reflection pressure intensity was measured in test pipeline and large test tunnel by means of explosion mechanics theory analysis and test method. The theoretical analysis shows that the circulation pressure of extremely weak shock wave is about half lower than that of reflection pressure, and the reflected overpressure of extremely strong shock wave is 8 鈮，

本文編號(hào)：2473937