定向卸压隔振爆破的减振效果
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摘要
介绍了定向卸压隔振爆破的装药结构和作用原理,在相同条件下,进行了定向卸压隔振爆破、光面爆破、常规爆破的地震效应模型试验和生产试验。结果表明,定向卸压隔振爆破的振速比其他爆破方法低,且隔振材料越好、在合理范围内孔底空气间隔越大,降振效果越好。
The charging structure and action principle of the pressure-relieved and vibration-insulated blasting were introduced.In the same conditions,earthquake effect model tests and production tests of the pressure-relieved and vibration-insulated blasting,smooth blasting,and conventional blasting were carried out.The results show the vibration velocity of the pressure-relieved and vibration-insulated blasting was lower than ones of other two blasting methods,Better isolation material of the pressure-relieved and vibration-insulated blasting are better and bigger air interval of the bore-hole bottom in the reasonable scope make reducing vibration effect better.
The charging structure and action principle of the pressure-relieved and vibration-insulated blasting were introduced.In the same conditions,earthquake effect model tests and production tests of the pressure-relieved and vibration-insulated blasting,smooth blasting,and conventional blasting were carried out.The results show the vibration velocity of the pressure-relieved and vibration-insulated blasting was lower than ones of other two blasting methods,Better isolation material of the pressure-relieved and vibration-insulated blasting are better and bigger air interval of the bore-hole bottom in the reasonable scope make reducing vibration effect better.
引文
(1)王玉杰.爆破工程[M].武汉:武汉理工大学出版社,2009.
(2)李玉民,倪芝芳.地下工程开挖爆破的地面振动特征[J].岩石力学与工程学报,1997(3):167-173.
(3)李维学,张方春.工程爆破中几种理论解的分析[J].煤矿爆破,1997(4):15-18.
(4)陆凡东,方向,范磊,等.核电站机组基坑负挖爆破振动测试[J].工程爆破,2010,16(1)):32-34.
(2)李玉民,倪芝芳.地下工程开挖爆破的地面振动特征[J].岩石力学与工程学报,1997(3):167-173.
(3)李维学,张方春.工程爆破中几种理论解的分析[J].煤矿爆破,1997(4):15-18.
(4)陆凡东,方向,范磊,等.核电站机组基坑负挖爆破振动测试[J].工程爆破,2010,16(1)):32-34.
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