摘要
安庆铜矿大直径深孔爆破工艺易对周围充填体造成严重破坏,因此研究对三面充填体的11#矿房布置10个测点,对掏槽、破顶、侧崩等爆破类型分别进行振动测试分析研究。运用最小二乘法回归拟合衰减规律公式,进而评价爆破效应,计算得出安全允许距离,同时在今后的爆破设计时可参考选用相应公式计算最大段药量以控制爆破振动。
The characteristics of the large-diameter longhole blasting technology in Anqing copper mine is easy to cause serious damage to the surrounding filling bodies.In this paper,10 test points are arranged in 11^# stope of three-side filling bodies.The vibration tests are carried out on the types of cut blasting,top blasting and lateral blasting,respectively.The least squares method is used to regression fit the formula of the attenuation law,and the blasting effect can be evaluated and safety allowing distance can be calculated.In the future,blasting design can refer to the corresponding formula to calculate the most loading charge to control the blasting vibration.
作者
苏广宇
刘俊
SU Guangyu LIU Jun(Anqing Copper Mine, Tongling Nonferrous Metals Group Co. , Ltd. , Anqing Anhui 246131, China Beijing General Research Institute of Mining ＆ Metallurgy, Beijing 100160, China)
出处
《有色金属（矿山部分）》
2017年第5期84-86,共3页
NONFERROUS METALS(Mining Section）
基金
"十三五"国家重点科技发展计划项目(2016YFC0600802)
关键词
大直径深孔
振动测试
回归拟合
衰减规律
large-diameter longhole
vibration measurement
regression fit
attenuation law
