应用人工神经网络预报爆破地震动峰值
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摘要
针对传统经验公式法已不能适应复杂爆破施工环境条件下预报爆破地震动峰值,甚至完全失效的情况,探讨人工神经网络方法在爆破地震动峰值预报中的应用,建立爆破地震动峰值预报人工神经网络模型,并用C语言编制计算程序。在地下隧道爆破地震动强度测试基础上,应用获得爆破测试结果,进行地下隧道爆破地震动峰值速度的人工神经网络预报。通过垂向、水平径向、水平切向爆破地震动峰值速度实测值对人工神经网络进行训练,进而预报爆破地震动峰值速度,并对实测值和预报值进行对比和误差分析。预报值与实测值符合较好,证实人工神经网络能有效预报爆破地震动峰值。
In view of the fact that the traditional empirical formula method is badly adaptable to predicting peak values of blasting vibration under complex construction circumstances and conditions,the application of the artificial neural network method in predicting blasting vibration peak values is studied,the artificial neural network model for predicting blasting vibration peak values is established and the correlative computational program is written in the C statements.On the basis of the vibration intensity measurement of an underground tunnel in blasting,the artificial neural network is used for the first time to predict the blasting vibration peak velocities of an underground tunnel.The artificial neural network is trained with the measured values of the vertical,horizontal radial and horizontal tangential blasting vibration peak velocities,then prediction of the blasting vibration peak velocity is achieved.The measured values and predicted values are compared and their errors are analyzed.The results indicate that the predicted values accord with the measured ones and the artificial neural network is reliable in predicting blasting vibration peak velocities.
In view of the fact that the traditional empirical formula method is badly adaptable to predicting peak values of blasting vibration under complex construction circumstances and conditions,the application of the artificial neural network method in predicting blasting vibration peak values is studied,the artificial neural network model for predicting blasting vibration peak values is established and the correlative computational program is written in the C statements.On the basis of the vibration intensity measurement of an underground tunnel in blasting,the artificial neural network is used for the first time to predict the blasting vibration peak velocities of an underground tunnel.The artificial neural network is trained with the measured values of the vertical,horizontal radial and horizontal tangential blasting vibration peak velocities,then prediction of the blasting vibration peak velocity is achieved.The measured values and predicted values are compared and their errors are analyzed.The results indicate that the predicted values accord with the measured ones and the artificial neural network is reliable in predicting blasting vibration peak velocities.
引文
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[2]郑峰,段卫东,钟冬望,等.爆破震动研究现状及存在问题的探讨[J].爆破,2006,23(1):23-26.ZHENG Feng,DUAN Wei-dong,ZHONG Dong-wang,etal.Research Progress and Existing Problems of BlastingVibration[J].Blasting,2006,23(1):23-26.
[3]曹孝君,张继春,吕和林,等.浅埋隧道掘进爆破地表震动效应数值模拟[J].西南交通大学学报,2006,41(6):680-684.CAO Xiao-jun,ZHANG Ji-chun,LU¨He-lin,et al.Nu-merical Si mulation of Ground Vibration Effects in ShallowTunneling Blasting[J].Journal of Southwest Jiaotong Uni-versity,2006,41(6):680-684.
[4]ZURADA J M.Introduction to Artificial Neural System[M].Minnesota:West Publishing Company,1992.
[5]SMITH M.Neural Networks for Statistical Modeling[M].New York:Van Nostrand Reinhold,1993.
[6]张乃尧,阎平凡.神经网络与模糊控制[M].北京:清华大学出版社,1998.
[7]张立明.人工神经网络的模型及其应用[M].上海:复旦大学出版社,1993.
[8]王文成.神经网络及其在汽车工程中的应用[M].北京:北京理工大学出版社,1998.
[9]言志信,吴德伦,许明.地震效应及安全研究[J].岩土力学,2002,23(2):201-203.YAN Zhi-xin,WU De-lun,Xu Ming.The Study of BlastVibration Effect and Safety[J].Rock and Soil Mechanics,2002,23(2):201-203.
[10]言志信,王永和,江平.爆破地震测试及建筑结构安全标准研究[J].岩石力学与工程学报,2003,22(11):543-545.YAN Zhi-xin,WANG Yong-he,JIANG Ping.Study onMeasurement of Blast-Induced Seism and Building SafetyCriteria[J].Chinese Journal of Rock Mechanics and Engi-neering,2003,22(11):543-545.
[11]YAN Zhi-xin,JIANG Ping,CHEN Guo-yuan,et al.Study on Blasting Vibration Safety at Weigang Iron Mine[C]//HUANG Ping,WANG Ya-jun,LI Sheng-cai,etal.Proceedings of the 2006 International Symposium onSafety Science and Technology.Beijing:Science Press,2006:1188-1190.
[12]言志信.结构拆除及爆破震动效应研究[D].重庆:重庆大学,2002.
[13]中华人民共和国铁道部.TB10204—2002铁路隧道施工规范[S].北京:中国铁道出版社,2002.
[14]冯叔瑜,王中黔.地铁爆破的震动问题[J].中国铁道科学,1999,20(2):32-36.FENG Shu-yu,WANG Zhong-qian.The Problemof Blas-ting Vibration in Metro Engineering[J].China Rail wayScience,1999,20(2):32-36.
[15]李玉民,倪芝芳.地下工程开挖爆破的地面振动特征[J].岩石力学与工程学报,1997,16(3):274-278.LI Yu-min,NI Zhi-fang.The Characteristics on SurfaceVibration of Blasting in Underground Engineering[J].Chinese Journal of Rock Mechanics and Engineering,1997,16(3):274-278.
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