摘要
在激波管内充填高压气体模拟矿顶冒落后产生的高压气浪 ,充填块石模拟矿石垫层。对不同厚度、不同孔隙率的垫层的消波作用进行了试验 ,并在矿山进行了现场实验 ,得出了一致的规律。获得了垫层厚度的确定方法。
Hign pressure airflow caused by caving in of the top of the underground space in the mine is simulated by filling in shock wave pipe with high pressure gas.Ore cushion is simulated by filling in the pipe with gravels.The experiments have been done in the effect of the wave attenuation in which the ore cushion has multifarious thickness and porosity.The laws of the wave attenuation and the method of calculating thickness of the ore cushion have been found out.
出处
《中国矿业》
北大核心
2004年第5期47-50,共4页
China Mining Magazine
关键词
冒落
高压气浪
矿石垫层
消波
Cavein,High pressure airflow,Ore cushion,Wave attenuation
