基于小波神经网络的锚杆-围岩结构系统的识别
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摘要
提出了一种用于识别锚杆杆侧刚度因子的小波神经网络模型.首先,利用均匀设计方法建立锚杆系统的样本库,采用数值模拟得到各样本的锚杆杆顶的动测信号;然后将小波分析和人工神经网络结合起来,利用小波分析技术提取的能表征系统状态的特征向量作为输入向量,利用广义回归神经网络识别杆侧刚度因子;最后,利用样本对所建立的小波神经网络进行训练.分析结果表明:训练后的神经网络能够较好地识别锚杆系统杆侧刚度因子,为锚杆系统的锚固质量评价提供了一个有效的智能化手段.
A new analytical method used in identification for bolt-surrounding rock structural system was put forward,which combined with advantages of wavelet analysis and artificial neural network. Firstly,the samples of bolt’s anchorage system were acquired by uniform design and the dynamic responses of these bolts were obtained by numerical simulation. Secondly,the features were extracted from the dynamic responses by wavelet analysis. A generalized regression network was used to estimate the values of bolt’s side rigidity factors. Finally,these features were fed into the artificial neural network for training. The results indicate that this wavelet neural network after training can best identify the bolt’s side rigidity factors and can be a useable intelligent mean to assess the quality of bolt’s anchoring system.
A new analytical method used in identification for bolt-surrounding rock structural system was put forward,which combined with advantages of wavelet analysis and artificial neural network. Firstly,the samples of bolt’s anchorage system were acquired by uniform design and the dynamic responses of these bolts were obtained by numerical simulation. Secondly,the features were extracted from the dynamic responses by wavelet analysis. A generalized regression network was used to estimate the values of bolt’s side rigidity factors. Finally,these features were fed into the artificial neural network for training. The results indicate that this wavelet neural network after training can best identify the bolt’s side rigidity factors and can be a useable intelligent mean to assess the quality of bolt’s anchoring system.
引文
[1]许明,张永兴,阴可.砂浆锚杆的锚固及失效机理研究[J].重庆建筑大学学报,2001,23(6):10-15.Xu Ming,Zhang Yongxing,Yin Ke.Study on anchorage and failure mechanism of mortar bolt[J].Journal of Chongqing Jianzhu University,2001,23(6):10-15.
[2]李义,刘海峰,王富春.锚杆锚固状态参数无损检测及其应用[J].岩石力学与工程学报,2004,23(10):1741-1744.Li Yi,Liu Haifeng,Wang Fuchun.Non-destructive testing of parameters of bolt anchoring state and its application[J].Chi-nese Journal of Rock Mechanics and Engineering,2004,23(10):1741-1744.
[3]Weiz F Thurner.Detection of invisible faults on rock-bolts in-situ[A].International Symposium on Rock Bolting Theory andApplication in Mining and Underground Construction[C].[s.l.]:[s.n.],1983.
[4]Tadolini S C.Evaluation of ultrasonic measurement systems for bolt load eterminations[R].Denver:The U.S.Bureau of Mines,1990.
[5]Tadolini S C,Dyni R C.Transfer mechanics of full-column resin-grouted roof bolts[R].Denver:The U.S.Bureau of Mines,1990.
[6]Singner S P.Field verification of load-transfer mechanics of fully grouted roof bolts[R].Denver:The U.S.Bureau of Mines,1990.
[7]汪明武,王鹤龄.锚固体系无损检测的研究[J].岩石力学与工程学报,2002,21(1):126-129.Wang Mingwu,Wang Heling.Nondestructive testing of anchoring quality[J].Chinese Journal of Rock Mechanics and Engi-neering,2002,21(1):126-129.
[8]Wang Mingwu,Wang Heling.Nondestructive testing of grouted bolts system[J].Chinese Journal of Geotechnical Engineer-ing,2001,23(1):109-113.
[9]李义,王成.应力反射波法检测锚杆锚固质量的试验研究[J].煤炭学报,2000,25(2):160-164.Li Yi,Wang Cheng.Experiment study on bolt bonding integrity with stress reflected wave method[J].Journal of China Coal Society,2000,25(2):160-164.
[10]张永兴,许明.岩土锚固系统质量智能诊断理论与应用[M].北京:中国建筑工业出版社,2002.Zhang Yongxing,Xu Ming.Intelligent diagnosis technology theory on geo-anchorage system and its application[M].Bei-jing:China Architecture and Building Press,2002.
[11]许明,张永兴.锚固系统的质量管理与检测技术研究[J].重庆建筑大学学报,2002,24(1):29-33.Xu Ming,Zhang Yongxing.Study on quality management and inspection technology of anchorage system[J].Journal of Chongqing Jianzhu University,2002,24(1):29-33.
[12]许明,张永兴,阴可.锚杆极限承载力的人工神经网络预测[J].岩石力学与工程学报,2002,21(5):755-758.Xu Ming,Zhang Yongxing,Yin Ke.Prediction of limit bearing capacity of bolt by neural network[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(5):755-758.
[13]许明,张永兴.锚杆低应变动测的数值研究[J].岩石力学与工程学报,2003,22(9):1538-1541.Xu Ming,Zhang Yongxing.Numerical study of low strain dynamic test for bolt[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(9):1538-1541.
[14]许明,张永兴,阴可.某隧道锚杆完整性的无损检测方法[J].土木工程学报,2004,37(5):78-80.Xu Ming,Zhang Yongxing,Yin Ke.Study on nondestructive detection of bolts integrality in a tunnel[J].China Civil Engi-neering Journal,2004,37(5):78-80.
[15]陈建功,张永兴,李英民.完整锚杆低应变动力响应问题的半解析解及分析[J].世界地震工程,2004,20(3):56-61.Chen Jiangong,Zhang Yongxing,Li Yingmin.Semi-analytical solution to small strain dynamic response of integrate anchor bar and its analysis[J].World Earthquake Engineering,2004,20(3):56-61.
[16]张永兴,陈建功.缺陷锚杆振动问题的数学模型及其求解[J].地下空间与工程学报.2005,1(1):62-66.Zhang Yongxing,Chen Jiangong.Model for longitudinal vibration of defective anchor bar and its solution[J].Chinese Jour-nal of Underground Space and Engineering,2005,1(1):62-66.
[17]张永兴,宋静,陈建功.完整锚杆系统动力参数反演的遗传算法[J].地下空间与工程学报,2006,2(6):971-974.Zhang Yongxing,Song Jing,Chen Jiangong.A genetic algorithm for dynamic parameters reverse deduction of integrated an-chorage system[J].Chinese Journal of Underground Space and Engineering,2006,2(6):971-974.
[18]孙均,黄伟.岩石力学参数弹塑性反演问题的优化方法[J].岩石力学与工程学报,1992,11(3):221-229.Sun Jun,Huang Wei.An optimization method for the elastoplastic inversion of parameters in rock mechanics[J].Chinese Journal of Rock Mechanics and Engineering,1992,11(3):221-229.
[2]李义,刘海峰,王富春.锚杆锚固状态参数无损检测及其应用[J].岩石力学与工程学报,2004,23(10):1741-1744.Li Yi,Liu Haifeng,Wang Fuchun.Non-destructive testing of parameters of bolt anchoring state and its application[J].Chi-nese Journal of Rock Mechanics and Engineering,2004,23(10):1741-1744.
[3]Weiz F Thurner.Detection of invisible faults on rock-bolts in-situ[A].International Symposium on Rock Bolting Theory andApplication in Mining and Underground Construction[C].[s.l.]:[s.n.],1983.
[4]Tadolini S C.Evaluation of ultrasonic measurement systems for bolt load eterminations[R].Denver:The U.S.Bureau of Mines,1990.
[5]Tadolini S C,Dyni R C.Transfer mechanics of full-column resin-grouted roof bolts[R].Denver:The U.S.Bureau of Mines,1990.
[6]Singner S P.Field verification of load-transfer mechanics of fully grouted roof bolts[R].Denver:The U.S.Bureau of Mines,1990.
[7]汪明武,王鹤龄.锚固体系无损检测的研究[J].岩石力学与工程学报,2002,21(1):126-129.Wang Mingwu,Wang Heling.Nondestructive testing of anchoring quality[J].Chinese Journal of Rock Mechanics and Engi-neering,2002,21(1):126-129.
[8]Wang Mingwu,Wang Heling.Nondestructive testing of grouted bolts system[J].Chinese Journal of Geotechnical Engineer-ing,2001,23(1):109-113.
[9]李义,王成.应力反射波法检测锚杆锚固质量的试验研究[J].煤炭学报,2000,25(2):160-164.Li Yi,Wang Cheng.Experiment study on bolt bonding integrity with stress reflected wave method[J].Journal of China Coal Society,2000,25(2):160-164.
[10]张永兴,许明.岩土锚固系统质量智能诊断理论与应用[M].北京:中国建筑工业出版社,2002.Zhang Yongxing,Xu Ming.Intelligent diagnosis technology theory on geo-anchorage system and its application[M].Bei-jing:China Architecture and Building Press,2002.
[11]许明,张永兴.锚固系统的质量管理与检测技术研究[J].重庆建筑大学学报,2002,24(1):29-33.Xu Ming,Zhang Yongxing.Study on quality management and inspection technology of anchorage system[J].Journal of Chongqing Jianzhu University,2002,24(1):29-33.
[12]许明,张永兴,阴可.锚杆极限承载力的人工神经网络预测[J].岩石力学与工程学报,2002,21(5):755-758.Xu Ming,Zhang Yongxing,Yin Ke.Prediction of limit bearing capacity of bolt by neural network[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(5):755-758.
[13]许明,张永兴.锚杆低应变动测的数值研究[J].岩石力学与工程学报,2003,22(9):1538-1541.Xu Ming,Zhang Yongxing.Numerical study of low strain dynamic test for bolt[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(9):1538-1541.
[14]许明,张永兴,阴可.某隧道锚杆完整性的无损检测方法[J].土木工程学报,2004,37(5):78-80.Xu Ming,Zhang Yongxing,Yin Ke.Study on nondestructive detection of bolts integrality in a tunnel[J].China Civil Engi-neering Journal,2004,37(5):78-80.
[15]陈建功,张永兴,李英民.完整锚杆低应变动力响应问题的半解析解及分析[J].世界地震工程,2004,20(3):56-61.Chen Jiangong,Zhang Yongxing,Li Yingmin.Semi-analytical solution to small strain dynamic response of integrate anchor bar and its analysis[J].World Earthquake Engineering,2004,20(3):56-61.
[16]张永兴,陈建功.缺陷锚杆振动问题的数学模型及其求解[J].地下空间与工程学报.2005,1(1):62-66.Zhang Yongxing,Chen Jiangong.Model for longitudinal vibration of defective anchor bar and its solution[J].Chinese Jour-nal of Underground Space and Engineering,2005,1(1):62-66.
[17]张永兴,宋静,陈建功.完整锚杆系统动力参数反演的遗传算法[J].地下空间与工程学报,2006,2(6):971-974.Zhang Yongxing,Song Jing,Chen Jiangong.A genetic algorithm for dynamic parameters reverse deduction of integrated an-chorage system[J].Chinese Journal of Underground Space and Engineering,2006,2(6):971-974.
[18]孙均,黄伟.岩石力学参数弹塑性反演问题的优化方法[J].岩石力学与工程学报,1992,11(3):221-229.Sun Jun,Huang Wei.An optimization method for the elastoplastic inversion of parameters in rock mechanics[J].Chinese Journal of Rock Mechanics and Engineering,1992,11(3):221-229.
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