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    Application of Integrated Forecasting Model Based on Multiple Variables in Tunnel Vault Settlement

    Source: Journal of Highway and Transportation Research and Development (English Edition):;2018:;Volume ( 012 ):;issue: 003
    Author:
    Xiao Da-hai;Xie Quan-min;Yang Wen-dong
    DOI: 10.1061/JHTRCQ.0000639
    Publisher: American Society of Civil Engineers
    Abstract: The settlement of tunnel vault, which is a complicated process that includes combined actions of multiple factors together, is difficult to calculate accurately with a mathematical model. In the actual construction process, the surrounding rock often changes, so we must strictly control the tunnel vault settlement to meet design requirements. Traditional prediction models can obtain only a rough estimate of the vault settlement by using the monitoring data to fit and forecast its changes. To solve the problem, this paper constructs a time-series model, GM (1, 2) model, and BP model with input variables to predict the settlement of the vault. The effectiveness of the model is verified by examples, which show that the GM (1, 1) prediction model of a single variable is completely ineffective. To avoid the lower prediction accuracy of a single model and use the complementary advantages of different models, this paper establishes an integrated prediction model based on the above three models, and its weighting coefficient is determined by the application of the entropy method. The model is applied to Baimiaozi Tunnel for testing, which provides high-speed travel from Baoji to Hanzhong (two cities in Shanxi Province). The integrated model is effective in practice and has a high prediction accuracy.
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      Application of Integrated Forecasting Model Based on Multiple Variables in Tunnel Vault Settlement

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4249318
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    contributor authorXiao Da-hai;Xie Quan-min;Yang Wen-dong
    date accessioned2019-02-26T07:46:49Z
    date available2019-02-26T07:46:49Z
    date issued2018
    identifier otherJHTRCQ.0000639.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4249318
    description abstractThe settlement of tunnel vault, which is a complicated process that includes combined actions of multiple factors together, is difficult to calculate accurately with a mathematical model. In the actual construction process, the surrounding rock often changes, so we must strictly control the tunnel vault settlement to meet design requirements. Traditional prediction models can obtain only a rough estimate of the vault settlement by using the monitoring data to fit and forecast its changes. To solve the problem, this paper constructs a time-series model, GM (1, 2) model, and BP model with input variables to predict the settlement of the vault. The effectiveness of the model is verified by examples, which show that the GM (1, 1) prediction model of a single variable is completely ineffective. To avoid the lower prediction accuracy of a single model and use the complementary advantages of different models, this paper establishes an integrated prediction model based on the above three models, and its weighting coefficient is determined by the application of the entropy method. The model is applied to Baimiaozi Tunnel for testing, which provides high-speed travel from Baoji to Hanzhong (two cities in Shanxi Province). The integrated model is effective in practice and has a high prediction accuracy.
    publisherAmerican Society of Civil Engineers
    titleApplication of Integrated Forecasting Model Based on Multiple Variables in Tunnel Vault Settlement
    typeJournal Paper
    journal volume12
    journal issue3
    journal titleJournal of Highway and Transportation Research and Development (English Edition)
    identifier doi10.1061/JHTRCQ.0000639
    page46
    treeJournal of Highway and Transportation Research and Development (English Edition):;2018:;Volume ( 012 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian