萨热克铜矿采场爆破对相邻采场的影响

发布时间：2018-05-05 07:50

  本文选题：爆破震动 + 衰减规律　； 参考：《金属矿山》2017年06期

【摘要】：地下矿山采场爆破对相邻采场围岩的稳定性造成扰动是不可避免的,当爆破单段起爆药量过大时,采场容易出现片帮或冒顶。因此研究地下采场回采时爆破振动对相邻采场的影响,从而保证地下采场的安全和稳定是很有必要的。结合新疆萨热克铜矿生产情况,采用现场爆破振动测试和数值模拟分析相结合的方法研究萨热克铜矿地下采场爆破振动对相邻采场围岩的影响,利用萨道夫斯基经验公式对测试数据回归分析,得出地震波传播衰减公式。数值模拟研究爆破过程中邻近洞室的质点振动速度特点,相邻采场洞壁动应力分布规律以及爆破动应力与振动速度的关系。
[Abstract]:It is inevitable to disturb the stability of surrounding rock of adjacent stope by stope blasting in underground mine. When the quantity of explosive in single section of blasting is too large, the roof or roof will easily appear in the stope. Therefore, it is necessary to study the influence of blasting vibration on adjacent stope in underground stope, so as to ensure the safety and stability of underground stope. Based on the production situation of Sajek Copper Mine in Xinjiang, the effect of blasting vibration in underground stope of Sajek Copper Mine on surrounding rock of adjacent stope is studied by means of field blasting vibration test and numerical simulation analysis. The formula of attenuation of seismic wave propagation is obtained by regression analysis of test data by using Sadolski's empirical formula. The characteristics of particle vibration velocity in adjacent caverns, the distribution law of dynamic stress in adjacent stope wall and the relation between blasting dynamic stress and vibration velocity are studied by numerical simulation.
【作者单位】： 武汉理工大学资源与环境工程学院;矿物资源加工与环境湖北省重点实验室;大冶有色金属集团控股有限公司;
【基金】：中央高校基本科研业务费专项(编号:2015-Ⅲ-011,2017II36GX)
【分类号】：TD235;TD862.1
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本文编号：1846830