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铅锌矿爆破有害效应分析及安全评估
Safety Evaluation and Evaluation on Adverse Effects of Blasting of Lead-Zinc Mine
【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。
【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.
【Key words】 field test; blasting vibration; attenuation law; shock wave; noise; blasting flyrock;
- 【文献出处】 爆破 ,Blasting , 编辑部邮箱 ,2009年01期
- 【分类号】TD235
- 【被引频次】6
- 【下载频次】98