完整锚杆系统动力参数反演的遗传算法
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摘要
在锚杆-围岩结构系统低应变动力响应分析中,锚固介质及围岩对锚杆的影响可用锚固系统参数模型中的动刚度与阻尼来衡量,它们是表征锚固质量的重要指标。而对锚固质量的定量评价则以完整锚杆动力参数作为依据。作者在完整锚杆动力响应数值计算的基础上,提出一种动力参数反演的遗传算法。利用遗传算法具有自组织、自适应、自学习且收敛速度较快等优良特性,进行了工程实例的计算,得到动力参数的最优解。结果表明这种多参数反演的方法是比较准确可靠的。
In dynamic analysis of anchorage system,the influence of the cement grouting as well as the rock layer on the anchored bar can be evaluated as the two kinds of parameters: the dynamic stiffness and the damp,which are the vital reference of the anchorage quality.Based on the analytic solution to the dynamic equation of the integrated anchor bar,the new approach which combines genetic algorithm and the toolbox of Matlab is employed to solve the problem of multi-parameters reverse deduction for integrated anchorage system in dynamic testing.The examples show that the method presented in this paper is effective and reliable.
In dynamic analysis of anchorage system,the influence of the cement grouting as well as the rock layer on the anchored bar can be evaluated as the two kinds of parameters: the dynamic stiffness and the damp,which are the vital reference of the anchorage quality.Based on the analytic solution to the dynamic equation of the integrated anchor bar,the new approach which combines genetic algorithm and the toolbox of Matlab is employed to solve the problem of multi-parameters reverse deduction for integrated anchorage system in dynamic testing.The examples show that the method presented in this paper is effective and reliable.
引文
[1]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(1).126-129
[2]张永兴,许明.岩土锚固质量智能诊断理论与应用[M].中国建筑工业出版社,2002
[3]钱家欢,殷宗泽.土工原理与计算[M].中国水利水电出版社,1996
[4]徐攸在.桩的动测新技术[M].中国建筑工业出版社.,2002
[5]王小平,曹立明.遗传算法———理论、应用与软件实现[M].西安交通大学出版社.,2002
[6]周明.遗传算法原理及应用[M].科学出版社,2001
[7]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
[8]王成,恽寿榕,李义.锚杆-锚固介质-围岩系统瞬态激励的响应分析[J].太原理工大学学报,2000.31(6).658-661
[9]陈建功,张永兴,郑永保.动力测桩中完整桩多参数反演问题的遗传算法[J].重庆大学学报,2003.26(11).126-129
[10]JEFF JO INES,M IKE MAY.A genetic algorithm forfunction optim ization.A m atlab imp lem entation byChris Houck.www.ie.nesu.edu/m irage/GAToolBox/goat.2003-06-11
[11]陈辉国,石少卿,黄双杰.桩基完整性动测试验时域曲线的模拟及反演[J].2004.30(1).80-82
[12]蔡靖,张献民,孙维丰.完整基桩瞬态激振响应分析[J].2001.30(6).56-60
[2]张永兴,许明.岩土锚固质量智能诊断理论与应用[M].中国建筑工业出版社,2002
[3]钱家欢,殷宗泽.土工原理与计算[M].中国水利水电出版社,1996
[4]徐攸在.桩的动测新技术[M].中国建筑工业出版社.,2002
[5]王小平,曹立明.遗传算法———理论、应用与软件实现[M].西安交通大学出版社.,2002
[6]周明.遗传算法原理及应用[M].科学出版社,2001
[7]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
[8]王成,恽寿榕,李义.锚杆-锚固介质-围岩系统瞬态激励的响应分析[J].太原理工大学学报,2000.31(6).658-661
[9]陈建功,张永兴,郑永保.动力测桩中完整桩多参数反演问题的遗传算法[J].重庆大学学报,2003.26(11).126-129
[10]JEFF JO INES,M IKE MAY.A genetic algorithm forfunction optim ization.A m atlab imp lem entation byChris Houck.www.ie.nesu.edu/m irage/GAToolBox/goat.2003-06-11
[11]陈辉国,石少卿,黄双杰.桩基完整性动测试验时域曲线的模拟及反演[J].2004.30(1).80-82
[12]蔡靖,张献民,孙维丰.完整基桩瞬态激振响应分析[J].2001.30(6).56-60
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