【摘要】 以铅锌矿爆破施工为背景,在现场试验的基础上,对测得的振动速度进行了回归分析,得到了场地爆破震动衰减规律,并结合爆破主频率,确定了周围民房的容许振动速度为2 cm/s。同时,对爆破冲击波、噪声和飞石进行了研究并提出了一些预防措施,并对有害效应进行了评估,对后续爆破设计和施工具有指导意义。更多还原

【Abstract】 On the basis of blasting construction of a Lead-Zinc mine and its field test,the measured vibration velocity values was regressed,and the blasting vibration attenuation law in this region was obtained.Referring to blasting main frequency,2 cm/s was taken as the concessional blasting seismic velocity to buildings nearby.The blasting shock wave,blasting noise and blasting flyrock were studied,and some preventive measures were suggested,and adverse effects of Blasting of a Lead-zinc Mine were evaluated.The blasting vibration attenuation law and preventive measures are helpful to design and excavation of future blasting.更多还原