测绘通报 ›› 2019, Vol. 0 ›› Issue (7): 50-53,82.doi: 10.13474/j.cnki.11-2246.2019.0217

• 学术研究 • 上一篇    下一篇

一种基于GA-BP-MC神经网络的高铁桥墩沉降预测模型

冯绍权1,2, 花向红1,2, 陶武勇1,2, 宣伟3, 吴伟1,2, 续东1,2   

  1. 1. 武汉大学测绘学院, 湖北 武汉 430079;
    2. 武汉大学灾害监测和防治研究中心, 湖北 武汉 430079;
    3. 武汉理工大学土木工程与建筑学院, 湖北 武汉 430070
  • 收稿日期:2019-01-09 修回日期:2019-05-20 出版日期:2019-07-25 发布日期:2019-07-31
  • 通讯作者: 花向红。E-mail:xhhua@sgg.whu.edu.cn E-mail:xhhua@sgg.whu.edu.cn
  • 作者简介:冯绍权(1994-),男,硕士生,主要研究方向为精密工程测量与变形监测。E-mail:602414626@qq.com
  • 基金资助:
    国家自然科学基金(41674005;41374011);东华理工大学江西省数字国土重点实验室开放研究基金资助项目(DLLJ201801)

A settlement prediction model of high-speed railway pier based on GA-BP-MC neural network

FENG Shaoquan1,2, HUA Xianghong1,2, TAO Wuyong1,2, XUAN Wei3, WU Wei1,2, XU Dong1,2   

  1. 1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
    2. Hazard monitoring & prevention Research Center, Wuhan University, Wuhan 430079, China;
    3. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China
  • Received:2019-01-09 Revised:2019-05-20 Online:2019-07-25 Published:2019-07-31

摘要: 提出一种基于马尔科夫链修正的遗传BP神经网络预测模型(GA-BP-MC),利用遗传算法的全局寻优能力初始化BP神经网络权值和阈值,初步建立GA-BP神经网络预测模型,结合马尔科夫链的无后效性修正模型预测值,形成高精度GA-BP-MC神经网络变形预测模型。结合高铁桥墩沉降数据,分别与BP神经网络、GA-BP神经网络预测模型进行对比,结果表明,该预测模型精度最高。

关键词: 马尔科夫链, 遗传算法, BP神经网络, 高铁桥墩, 沉降预测

Abstract: A genetic BP neural network prediction model (GA-BP-MC) based on Markov chain modification is proposed. The weights and thresholds of BP neural network are initialized by the global optimization ability of genetic algorithm, and the prediction model of GA-BP neural network is established preliminarily. The predictive value of model is modified by the invalidity of Markov chain to form a high precision deformation prediction model of GA-BP-MC neural network. Combined with the settlement data of high-speed railway piers, and compared with the BP neural network and GA-BP neural network prediction models respectively, the results show that the accuracy of the prediction model is highest.

Key words: Markov chain, genetic algorithm, BP neural network, high-speed railway pier, settlement prediction

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