邵蔚;王长柏;
SHAO Wei;WANG Chang-bo;Nanyang Hydraulic Investigation and Design Institute;Department of Civil Engineering and Architecture,Anhui University of Science and Technology;

• 1:河南省南阳市水利建筑勘测设计院
• 2:安徽理工大学土木建筑学院

摘要(Abstract)：

针对传统质点峰值振动速度公式因没有考虑水体波动对爆破振动传播的影响导致预测结果精度较差的问题,以某核电站水下爆破实验为背景,分析了水下钻孔爆破时地面质点振动特征和水下爆破地震波的衰减规律。由现场实测爆破振动速度数据分析结果可知,水下爆破产生的地震波具有振幅小,衰减慢等特点,传统的质点峰值振动速度公式不适用于水下爆破振动传播的预测,鉴于此,对其进行修正。修正后的预测公式考虑水深比的影响,将拟合系数从0.45提高到0.92,由此可见,修正的预测公式能够更好地反映水下爆破振动衰减规律。由于爆破振动的频谱特征也是决定其灾害程度的重要因素,因此通过傅里叶变换,对比分析了水下爆破与露天爆破的频谱特征。结果表明,水下爆破具有明显的滤频效应,具有主频小,频带窄,能量小等特点。研究结果可为水下爆破灾害的有效控制提供依据。
To solve the problem of the poor prediction of blast vibration based on the traditional formula without considering the effect of water fluctuation,the characteristics of particle vibration on the ground is analyzed in underwater blasting under the background of underwater blasting test of a nuclear power station and the attenuation law of underwater blasting seismic waves.According to the in situ monitoring data,the particle vibration velocity induced by underwater blasting has obvious characteristics such as lower amplitude,slower decay,etc,the traditional formula of particle peak vibration velocity is not suitable for the prediction of vibration propagation in underwater blasting,so it is modified.Compared to the traditional formula,the proposed prediction formula is more suitable to describe the blasting vibration propagation characteristics,and the resulting correlation coefficient is improved from 0.45 to 0.92.Because the spectrum characteristics is an important factors influencing blasting disaster,the contrastive analysis between the underwater blasting and surface blasting are made by Fourier-transform.The results show that the underwater blasting has obvious filtering effects,which include the small corresponding dominant frequency,the narrow band and the small energy.The research results provide the basis forcontrolling disaster in underwater blasting engineering.

关键词(KeyWords)： 水下爆破;质点峰值振动速度;频谱特性;预测公式;衰减规律
underwater blasting;particle peak vibration velocity;spectral characteristics;prediction formula;attenuation law

Abstract:

Keywords:

基金项目(Foundation): 贵州省交通运输厅科技资助项目(2016121032)

作者(Authors): 邵蔚;王长柏;
SHAO Wei;WANG Chang-bo;Nanyang Hydraulic Investigation and Design Institute;Department of Civil Engineering and Architecture,Anhui University of Science and Technology;

参考文献(References)：

• [1]陈春歌,申志兵,张贤凯,等.水下爆破冲击波危害及安全控制措施的模拟分析[J].安全与环境工程,2011,18(1):58-61.CHEN C G,SHEN Z B,ZHANG X K,et al.Simulation of underwater explosion shock hazards and safety control[J].Safety and Environmental Engineering,2011,18(1):58-61.
• [2]张明晓.装药水下爆炸相互作用及破岩能力研究[D].淮南:安徽理工大学,2009.ZHANG M X.Study on interaction and rock breaking capacity in underwater explosion[D].Huainan:Anhui University of Science and Technology,2009.
• [3]张立.有限水域的爆炸振动效应与减振措施[J].噪声与振动控制,2003,23(2):32-34.ZHANG L.The blasting vibration effect induced by underwater explosion in limited water area and decreasing vibration measures[J].Noise and Vibration Control,2003,23(2):32-34.
• [4]赵为,梁作民,郭成喜.水下近场爆破安全控制[J].水运工程,2007(9):159-164.ZHAO W,LIANG Z M,GUO C X.Safety control of underwater near-site explosion[J].Port&Waterway Engineering,2007(9):159-164.
• [5]陆遐龄,梁向前,胡光川,等.水中爆炸的理论研究与实践[J].爆破,2006,23(2):9-13.LU X L,LIANG X Q,HU G C,et al.Theoretical research and engineering practice about underwater blasting[J].Blasting,2006,23(2):9-13.
• [6]LI X F,LI H B,XIA L,et al.Characteristics on ground vibration subjected to impact loads in underwater blasting:A case study[J].International Journal of Rock Mechanics and Mining Sciences(accepted).
• [7]TEMKIN S,ECKER G Z.Droplet pair interactions in a shock-wave flow field[J].Journal of Fluid Mechanics,1989,202:467-497.
• [8]俞统昌,王晓峰,王建灵.炸药的水下爆炸冲击波性能[J].含能材料,2003,11(4):182-186.YU T C,WANG X F,WANG J L.Underwater shockwave performance of explosives[J].Energetic Materials,2003,11(4):182-186.
• [9]杨磊,钟冬望,何理,等.水下钻孔爆破振动信号的能量分布特征研究[J].工程建设与设计,2013(1):125-127.YANG L,ZHONG D W,HE L,et al.Energy distribution characteristics research of underwater blasting vibration signal[J].Construction&Design for Project,2013(1):125-127.
• [10]唐海,李海波.反映高程放大效应的爆破振动公式研究[J].岩土力学,2011,32(3):820-824.TANG H,LI H B.Study of blasting vibration formula of reflecting amplification effect on elevation[J].Rock and Soil Mechanics,2011,32(3):820-824.
• [11]吕涛,石永强,黄诚,等.非线性回归法求解爆破振动速度衰减公式参数[J].岩土力学,2007,28(9):1 871-1 878.LYU T,SHI Y Q,HUANG C,et al.Study on attenuation parameters of blasting vibration by nonlinear regression analysis[J].Rock and Soil Mechanics,2007,28(9):1 871-1 878.
• [12]张学民,阳军生,刘宝琛.层状岩体中近邻双线隧道爆破的振动响应研究[J].湖南科技大学学报(自然科学版),2006,21(4):70-74.ZHANG X M,YANG J S,LIU B C.Study on blasting seismic dynamic effect for tunnels with close interval in bedded rock mass[J].Journal of Hunan University of Science&Technology(Natural Science Edition),2006,21(4):70-74.
• [13]张世雄,杨明亮,尹家国,等.预测爆破波振动强度的经验公式及其在采矿中的应用[J].爆破,2000,17(3):13-17.ZHANG S X,YANG M L,YIN J G,et al.An empirical formula of calculating the vibrating intensity of explosive wave and its application in mining[J].Blasting,2000,17(3):13-17.
• [14]张继春,彭琼芳.岩体爆破地震波衰减规律的现场试验与分析[J].辽宁工程技术大学学报,2001,20(4):399-401.ZHANG J C,PENG Q F.Field experiment and its analysis of attenuation law for seismic waves resulting from rock blasting[J].Journal of Liaoning Technical University(Natural Science),2001,20(4):399-401.
• [15]国家安全生产监督管理总局.爆破安全规程:GB6722-2014[S].北京:中国标准出版社,2015.State Administration of Work Safety.Safety regulations for blasting:GB 6722-2014[S].Beijing:China Standards Press,2015.
• [16]DUVALL W I,FOGELSON D E.Review of criteria for estimating damage to residences from blasting vibration[R]. U.S. Bureau of Mines, R.I.No.5968,1962.