CAJ | 학술논문

爆破震动是引起地下矿山巷道破坏的重要原因,掌握爆破震动速度衰减规律,降低爆破震动危害,对矿山的安全高效生产有着重要意义. 针对铁蛋山矿区爆破震动造成下盘沿脉运输巷道破坏严重的现状,开展了爆破震动监测工作. 对于完整爆破信号数据,采用最小比例距离方法确定了多点爆破爆心距、炸药量和最大振速值的对应关系,为萨道夫斯基公式应用提供参数,并采用实例验证了该方法的可靠性. 在此基础上,建立了铁蛋山矿区爆破震动速度衰减模型,获得了距离下盘沿脉运输巷道不同位置开采时所允许的最大单段药量. 对矿山回采过程中的爆破参数进行了改进,不同区域采用不同最大单段药量,保证了沿脉运输巷道的稳定性和产能需求.
폭파진동시인기지하광산항도파배적중요원인,장악폭파진동속도쇠감규률,강저폭파진동위해,대광산적안전고효생산유착중요의의. 침대철단산광구폭파진동조성하반연맥운수항도파배엄중적현상,개전료폭파진동감측공작. 대우완정폭파신호수거,채용최소비례거리방법학정료다점폭파폭심거、작약량화최대진속치적대응관계,위살도부사기공식응용제공삼수,병채용실례험증료해방법적가고성. 재차기출상,건립료철단산광구폭파진동속도쇠감모형,획득료거리하반연맥운수항도불동위치개채시소윤허적최대단단약량. 대광산회채과정중적폭파삼수진행료개진,불동구역채용불동최대단단약량,보증료연맥운수항도적은정성화산능수구.
Blasting vibration is a key factor to induce the destruction of tunnel in underground mine. Therefore,it is im-portant to obtain velocity attenuation law for blasting signals,and to reduce the damage from blasting vibration,which is mean-ingful to the safe and efficient production. In view of the footwall strike-drift seriously destructed by blasting vibration in Tiedanshan mine,the monitoring work for blasting vibration was carried out. For integrated blasting signals,the minimum scale distance was used to obtain the relationship between distances from center of explosion,explosive quantity and maximum vibra-tion velocity. This method provided calculating parameter for Sadov's formula,whose reliability was verified. On this basis,the velocity attenuation model velocity attenuation model of blasting signals in Tiedanshan mine was established,and the largest a-mount of explosives per delay interval of different distance to footwall strike-drift were obtained. Then,the blasting parameters in Tiedanshan mine were improved. The measures that use the different largest amount of explosives per delay interval in differ-ent areas can meet the requirements of stability of footwall strike-drift and production capacity.