不同炸药性能对爆破振动效应的影响
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摘要
从岩石内炸药爆轰能量释放形式的角度,结合现场实时爆破振动监测数据,对比分析2种不同炸药性能的炸药产生的爆破振动特性,并对质点振动速度峰值的衰减规律及爆破振动持续时间进行回归分析。结果表明:除单响炸药量和爆心距,炸药自身性能对爆破振动效应的衰减规律和振动持续时间也有很大影响。
From the detonation energy release form of explosive in rock mass,the blast vibration caused by two different explosives was analyzed by combining the site monitoring results.And the two factors were regressively discussed: the attenuation of the peak particle vibration velocity with the distance away from the blast source;the vibration duration caused by these two explosives.The results show that apart from the explosive amount per delay and the distance from the blast source,the different properties of explosives have remarkable influences on the blast vibration attenuation and the vibration duration.
From the detonation energy release form of explosive in rock mass,the blast vibration caused by two different explosives was analyzed by combining the site monitoring results.And the two factors were regressively discussed: the attenuation of the peak particle vibration velocity with the distance away from the blast source;the vibration duration caused by these two explosives.The results show that apart from the explosive amount per delay and the distance from the blast source,the different properties of explosives have remarkable influences on the blast vibration attenuation and the vibration duration.
引文
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[3]陈士海,魏海霞,张安康,等.基于小波包技术的爆破地震效应计算模型及安全判据研究[J].爆炸与冲击,2010,30(4):377-382.CHEN Shi-hai,WEI Hai-xia,ZHANG An-kang,et al.Computational model and safety criterion of blasting vibra-tion effect based on wavelet packet techniques[J].Explosion and Shock Waves,2010,30(4):377-382.
[4]费鸿禄,马诺诺.坝基开挖爆破振动频带小波能量分析[J].爆破,2010,27(3):99-104.FEI Hong-lu,MA Nuo-nuo.Wavelet energy analysis of blasting vibration frequency band on dam foundation exca-vation[J].Blasting,2010,27(3):99-104.
[5]易长平,陈明,卢文波,等.减震沟减震的数值模拟[J].武汉大学学报:工学版,2005,38(1):49-52.YI Chang-ping,CHENG Ming,LU Wen-bo,et al.Numerical simulation for damping effect of damping ditch[J].Engineering Journal of Wuhan University,2005,38(1):49-52.
[6]罗毓,刘雁鹰,易长平.预裂缝参数对减振效果影响的数值分析[J].爆破,2007,24(2):25-35.LUO Yu,LIU Yan-ying,YI Chang-ping.Numerical simulation analysis of the effect of pre-splitting crack parame-ters on damping vibration[J].Blasting,2007,24(2):25-35.
[7]占时春,李山存.孔内孔间微差爆破试验研究[J].工程爆破,2006,12(2):45-48.ZHAN Shi-chun.LI Shan-cun.Experimental study on millisecond blasitng both in-and-among holes[J].Engineer-ing Blasting,2006,12(2):45-48.
[8]张玉明,白春华,张奇,等.炸药性能对爆炸地震波幅值影响的对比试验研究[J].北京理工大学学报,2001,21(6):669-674.ZHANG Yu-ming,BAI Chun-hua,ZHANG Qi,et al.Comparing experimental research on the effect of explosivecharacteristic upon the amplitude of explosion seismic wave[J].Journal of Beijing Institute of Technology,2001,21(6):669-674.
[9]Bock I.Breaking rock with propellants[Z].imPafa Technologies(PTY)LTD,2007.
[10]高金石,张奇.爆破理论与爆破优化[M].西安:西安地图出版社,1993:18-21.
[11]亨利奇J.爆炸动力学及其应用[M].熊建国,译.北京:科学出版社,1987:38-40.
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