会宝岭铁矿爆破振动危害控制研究

Research on control of blasting vibration hazards in Huibaoling Iron Mine

随着国民对美好生活的向往,矿山需要更加重视爆破振动给人和建(构)筑物造成的不良影响。基于会宝岭铁矿爆破振动实测数据,利用萨道夫斯基经验公式研究矿山爆破振动衰减规律,分析爆破振动安全距离,确定不同中段开采的允许最大段药量,为矿山的安全开采提供理论依据和指导意见。结果表明:距离工作面1197.21 m之外的房屋建筑不存在爆破振动安全问题,而矿区内保护对象一般离爆源400~500 m,若要达到0.2 cm/s的爆破振动速度,允许最大段药量需控制在200 kg左右。

With the increasing pursuit of a better life by the public,mining operations need to pay more attention to the adverse effects of blasting vibrations on people and buildings(structures).Based on the measured blasting vibration data in Huibaoling Iron Mine,the attenuation law of blasting vibrations in mines was studied using the Sadaovsk empirical formula.The analysis focused on determining the safe distance for blasting vibrations and identifying the reasonable maximum segment explosive quantity for different mid-section mining operations.This study provides theoretical basis and guidance for the safe mining operations in the mine.The results indicate that there are no safety issues with blasting vibrations for buildings located beyond 1197.21 m from the working face,while protective objects within the mining area should be positioned approximately 400-500 m away from the blast source.To achieve the peak velocity target of 0.2 cm/s for blasting vibrations,the allowable maximum segment explosive quantity should be controlled at around 200 kg.