岩石中化学爆炸气体渗漏行为的实验研究  

Experimental research on gas leakage from chemical explosion in rock

作　　者：王铁良[1] 王占江[1] 卢强[1] 张自禄[1] 文潮[1] 

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《爆炸与冲击》2014年第6期754-758,共5页Explosion and Shock Waves

摘　　要：通过小药量化爆模拟实验,研究了岩石中满足缩比关系的不同药量化学爆炸一氧化碳渗漏时间、渗漏份额与药量的关系。研究结果表明:相同介质中缩比爆炸实验气体渗漏时间大致与药量的三分之二次方成正比,渗漏停止时间也大致与药量的三分之二次方成正比;封闭空间内化学爆炸在爆室内产生的高温能够使爆室内一些物质分解产生非冷凝气体;对于不同药量的缩比实验,小药量实验的气体渗漏份额不小于大药量实验的气体渗漏份额。根据此研究结果,可以用小药量地下爆炸气体渗漏行为的监测结果预估大药量实验的气体渗漏行为。Small-scale chemical explosion simulation experiments were carried out to investigate the leakage time and percentage of CO gas from different-scale chemical explosions in rock.The differentscale chemical explosions meted a scaling relation.The researched results show as follows：（1）the beginning time and stopping time of gas leakage are approximately proportional to the two-third power of the explosive quantities in scaled explosion experiments in similar media;（2）some materials in a sealed blast chamber can decompose into non-condensable gas under high temperature caused by explosion;（3）the percentages of the leaked CO in smaller charge scale experiments are not less than those in the larger charge scale experiments.According to the researched results,one can estimate the gas leakage in larger charge scale underground explosion by the metrical results in smaller charge explosion.

关 键 词：爆炸力学 气体渗漏 缩比爆炸实验 化学爆炸 

分 类 号：O381[理学—流体力学]