锚杆–围岩结构系统低应变动力响应理论与应用研究
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摘要
建立锚杆–围岩结构系统低应变纵向动力响应的数学力学模型,为研究锚杆结构系统的无损探伤原理及方法提供理论依据。通过理论研究、实验室模型试验和数值模拟试验等技术,研究不同损伤锚杆应力波的传播规律、特性。锚杆系统动力参数的变化可准确反映锚杆的损伤程度,而动力参数的识别是衡量锚杆锚固质量的一条途径,同时提出一种对锚杆–围岩结构系统进行参数反演的遗传算法。利用现代信号分析理论,通过神经网络等现代人工智能手段,探讨锚杆系统损伤位置的确定方法和锚杆–围岩结构系统的识别方法,提出一种锚杆锚固质量定量分析的方法,建立锚杆系统无损探伤的智能诊断系统,并进行现场测试应用。
The low strain longitudinal dynamic model of anchor bars-surrounding rock system under impulse force is established.The model is essential to nondestructive detection of anchorage system quality.Through theoretical study,model experiment and numerical simulation,the characteristics of dynamic response with different defects in the anchor bars are studied.In dynamic analysis,the variations of dynamic parameters reflect the damaged degree of anchorage system and dynamic parameters are the vital reference of the anchorage quality.The simplified models of anchorage system with different damage conditions are constructed in laboratory;and a new approach which uses genetic algorithm is employed to solve the problem of multi-parameter inversion for anchorage system in dynamic testing.By modern signal processing and artificial intelligent methods,the method of fixing defect position and structure identification of anchorage system are researched.Meanwhile,a quantitative assessment method of anchoring quality is put forward;and an intelligent diagnosis system for nondestructive evaluation of anchorage system is established and applied to field engineering.
The low strain longitudinal dynamic model of anchor bars-surrounding rock system under impulse force is established.The model is essential to nondestructive detection of anchorage system quality.Through theoretical study,model experiment and numerical simulation,the characteristics of dynamic response with different defects in the anchor bars are studied.In dynamic analysis,the variations of dynamic parameters reflect the damaged degree of anchorage system and dynamic parameters are the vital reference of the anchorage quality.The simplified models of anchorage system with different damage conditions are constructed in laboratory;and a new approach which uses genetic algorithm is employed to solve the problem of multi-parameter inversion for anchorage system in dynamic testing.By modern signal processing and artificial intelligent methods,the method of fixing defect position and structure identification of anchorage system are researched.Meanwhile,a quantitative assessment method of anchoring quality is put forward;and an intelligent diagnosis system for nondestructive evaluation of anchorage system is established and applied to field engineering.
引文
[1]WEIZ F T.Detection of invisible faults on rock-bolts in-situ[C]//International Symposium on Rock Bolting Theory and Application to Mining and Underground Construction.[S.l.]:[s.n.],1983:75–78.
[2]TADOLINI S C.Evaluation of ultrasonic measurement systems for bolt load exterminations[R].Denver:The U S Bureau of Mines,1990.
[3]TADOLINI S C,DYNI R C.Transfer mechanics of full-column resin-grouted roof bolts[R].Denver:The U S Bureau of Mines,1990.
[4]SINGNER S P.Field Verification of load-transfer mechanics of fully grouted roof bolts[R].Denver:The U S Bureau of Mines,1990.
[5]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].Beijing:China Architecture and Building Press,2002.(in Chinese))
[6]汪明武,王鹤龄.锚固质量的无损检测技术[J].岩石力学与工程学报,2002,21(2):126–129.(WANG Mingwu,WANG Heling.Nondestructive testing of anchoring quality[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(2):126–129.(in Chinese))
[7]WANG M W,WANG H L.Nondestructive testing of grouted bolts system[J].Chinese Journal of Geotechnical Engineering,2001,23(1):109–113.
[8]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.Experimental study on bolt bonding integrity with stress reflected wave method[J].Journal of China Coal Society,2000,25(2):160–164.(in Chinese))
[9]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,2002,2l(5):755–758.(in Chinese))
[10]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.(in Chinese))
[11]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):1 538–1 541.(XU Ming,ZHANG Yongxing.Numerical study on low strain dynamic test for bolt[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(9):1 538–1 541.(in Chinese))
[12]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 Engineering Journal,2004,37(5):78–80.(in Chinese))
[13]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):1 741–1 744.(LI Yi,LIU Haifeng,WANG Fuchun.Nondestructive testing of parameters of bolt anchoring state and its application[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(10):1 741–1 744.(in Chinese))
[14]张昌锁,李义,赵阳升,等.锚杆锚固质量无损检测中的激发波研究[J].岩石力学与工程学报,2006,25(6):1 240–1 245.(ZHANG Changsuo,LI Yi,ZHAO Yangsheng,et al.Study on optimum excitation wave in grout quality nondestructive testing of rock bolt[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(6):1 240–1 245.(in Chinese))
[15]刘明贵,岳向红.基于小波神经网络的锚杆锚固质量分析[J].岩石力学与工程学报,2006,25(1):83–87.(LIU Minggui,YUE Xianghong.Analysis of bolts anchoring quality based on wavelet neural network[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(1):83–87.(in Chinese))
[16]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 low strain dynamic response of integrated anchor bar and its analysis[J].World Earthquake Engineering,2004,20(3):56–61.(in Chinese))
[17]陈建功,张永兴.完整锚杆纵向振动问题的求解与分析[J].地下空间,2003,23(3):268–271.(CHEN Jiangong,ZHANG Yongxing.Solution and analysis of the longitudinal vibration of integrated anchor bar[J].Underground Space,2003,23(3):268–271.(in Chinese))
[18]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 Journal of Underground Space and Engineering,2005,1(1):62–66.(in Chinese))
[19]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 anchorage system[J].Chinese Journal of Underground Space and Engineering,2006,2(6):971–974.(in Chinese))
[2]TADOLINI S C.Evaluation of ultrasonic measurement systems for bolt load exterminations[R].Denver:The U S Bureau of Mines,1990.
[3]TADOLINI S C,DYNI R C.Transfer mechanics of full-column resin-grouted roof bolts[R].Denver:The U S Bureau of Mines,1990.
[4]SINGNER S P.Field Verification of load-transfer mechanics of fully grouted roof bolts[R].Denver:The U S Bureau of Mines,1990.
[5]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].Beijing:China Architecture and Building Press,2002.(in Chinese))
[6]汪明武,王鹤龄.锚固质量的无损检测技术[J].岩石力学与工程学报,2002,21(2):126–129.(WANG Mingwu,WANG Heling.Nondestructive testing of anchoring quality[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(2):126–129.(in Chinese))
[7]WANG M W,WANG H L.Nondestructive testing of grouted bolts system[J].Chinese Journal of Geotechnical Engineering,2001,23(1):109–113.
[8]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.Experimental study on bolt bonding integrity with stress reflected wave method[J].Journal of China Coal Society,2000,25(2):160–164.(in Chinese))
[9]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,2002,2l(5):755–758.(in Chinese))
[10]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.(in Chinese))
[11]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):1 538–1 541.(XU Ming,ZHANG Yongxing.Numerical study on low strain dynamic test for bolt[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(9):1 538–1 541.(in Chinese))
[12]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 Engineering Journal,2004,37(5):78–80.(in Chinese))
[13]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):1 741–1 744.(LI Yi,LIU Haifeng,WANG Fuchun.Nondestructive testing of parameters of bolt anchoring state and its application[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(10):1 741–1 744.(in Chinese))
[14]张昌锁,李义,赵阳升,等.锚杆锚固质量无损检测中的激发波研究[J].岩石力学与工程学报,2006,25(6):1 240–1 245.(ZHANG Changsuo,LI Yi,ZHAO Yangsheng,et al.Study on optimum excitation wave in grout quality nondestructive testing of rock bolt[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(6):1 240–1 245.(in Chinese))
[15]刘明贵,岳向红.基于小波神经网络的锚杆锚固质量分析[J].岩石力学与工程学报,2006,25(1):83–87.(LIU Minggui,YUE Xianghong.Analysis of bolts anchoring quality based on wavelet neural network[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(1):83–87.(in Chinese))
[16]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 low strain dynamic response of integrated anchor bar and its analysis[J].World Earthquake Engineering,2004,20(3):56–61.(in Chinese))
[17]陈建功,张永兴.完整锚杆纵向振动问题的求解与分析[J].地下空间,2003,23(3):268–271.(CHEN Jiangong,ZHANG Yongxing.Solution and analysis of the longitudinal vibration of integrated anchor bar[J].Underground Space,2003,23(3):268–271.(in Chinese))
[18]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 Journal of Underground Space and Engineering,2005,1(1):62–66.(in Chinese))
[19]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 anchorage system[J].Chinese Journal of Underground Space and Engineering,2006,2(6):971–974.(in Chinese))
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