陆路,蒲传金,肖定军,刘向前,薛冰,秦晓星

• 1:西南科技大学环境与资源学院
• 2:非煤矿山安全技术四川省高等学校重点实验室

摘要(Abstract)：

为了研究爆炸塔内乳化炸药爆炸冲击波的传播规律,利用冲击波传感器对不同药量和不同距离条件下冲击波超压进行了测试。结果表明:空爆冲击波超压随着爆心距的增加而减小但并不是呈线性递减,并且随着药量的增大而增大;反射波平均超压约为入射波的1.2倍。通过比较实验测试值与传统的理论经验公式计算值,发现入射冲击波超压相对误差在5%～40%,主要因为乳化炸药的TNT当量系数选择偏小;而反射冲击波超压相对误差在50%～133%,其原因为传统的反射超压计算公式主要针对刚性壁面,但爆炸塔内地表和墙壁铺设的为多孔隙材料,具有一定的吸能作用,且雷管碎片及爆炸产物飞出影响爆炸塔内流场。最后,基于实验测试结果及爆炸相似律原理回归拟合出适用于爆炸塔的冲击波超压计算公式,经过拟合修正后平均相对误差约在12%左右。

关键词(KeyWords)： 爆炸塔;乳化炸药;壁面反射;冲击波超压;相似律

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金青年基金(11802255)

作者(Author): 陆路,蒲传金,肖定军,刘向前,薛冰,秦晓星

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