【摘要】 大型露天矿山多采用中深孔爆破形式,单次起爆药量大,引起较大的爆破振动,威胁着爆区周边的建筑物和构筑物的安全。针对淮南地区两个采石场现场爆破及矿区地质情况,开展爆破振动现场测试工作,并对结果进行线性回归分析计算,推导得出两采石场爆破振动速度衰减公式。同时对爆破振动频率进行分析,以保证周边建筑物的安全。更多还原

【Abstract】 The medium-deep blasting method is widely used in large open-pit mine.The single charge is large and it could cause major blasting vibration.It may threaten the security of construction and structures around the blasting area.According to the blasting circumstances and geology condition of two quarries in Huainan area,the testing of blasting vibration has been carried out.The result is calculated and analyzed by linear regression method.The attenuation formulas of blasting vibration velocity are deduced.Meanwhile,the blasting vibration frequency is analyzed to guarantee the construction safety.更多还原