YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • ASCE
    • International Journal of Geomechanics
    • View Item
    •   YE&T Library
    • ASCE
    • International Journal of Geomechanics
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Failure Mechanism and Countermeasures of an Operational Railway Tunnel Invert in Horizontally Stratified Rock Masses

    Source: International Journal of Geomechanics:;2022:;Volume ( 022 ):;issue: 002::page 04021280
    Author:
    Linyi Li
    ,
    Junsheng Yang
    ,
    Jian Wu
    ,
    Shuying Wang
    ,
    Xinghua Fang
    ,
    Cong Zhang
    DOI: 10.1061/(ASCE)GM.1943-5622.0002280
    Publisher: ASCE
    Abstract: Invert anomaly has become a typical problem of railway tunnels in stratified rock during operations, which seriously affects the transportation capacity of railroad lines. This paper will study the failure mechanism and deformation behavior of an operational railway tunnel in horizontally stratified rock masses. Borehole investigations and in situ stress tests will be conducted to real the properties and stress state of the surrounding rock, and the characteristics of the structural distress will be detected via a structural inspection. A numerical analysis that considers the stratigraphic geological information and field structure state will be performed to study the structural stress and deformation response under different conditions of stratigraphic lateral pressure coefficient (K0) and thickness of the stratified rock layer (L). The results demonstrate that the warping deformation of horizontally stratified rock masses below the tunnel invert was the main cause of the invert anomalies; however, when K0 ≤ 1.0 or K0 ≥ 2.0, and when L was in the range of thin-thick thickness to medium-thick thickness, there was a high risk of instability and cracking in the tunnel invert. In addition, the numerical analysis demonstrated that the rock reinforcement scheme could deweaken the layer effect of the rock masses and suppress the uplift deformation, which is recommended for practical projects.
    • Download: (3.106Mb)
    • Show Full MetaData Hide Full MetaData
    • Get RIS
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Failure Mechanism and Countermeasures of an Operational Railway Tunnel Invert in Horizontally Stratified Rock Masses

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4283409
    Collections
    • International Journal of Geomechanics

    Show full item record

    contributor authorLinyi Li
    contributor authorJunsheng Yang
    contributor authorJian Wu
    contributor authorShuying Wang
    contributor authorXinghua Fang
    contributor authorCong Zhang
    date accessioned2022-05-07T21:10:31Z
    date available2022-05-07T21:10:31Z
    date issued2022-2-1
    identifier other(ASCE)GM.1943-5622.0002280.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4283409
    description abstractInvert anomaly has become a typical problem of railway tunnels in stratified rock during operations, which seriously affects the transportation capacity of railroad lines. This paper will study the failure mechanism and deformation behavior of an operational railway tunnel in horizontally stratified rock masses. Borehole investigations and in situ stress tests will be conducted to real the properties and stress state of the surrounding rock, and the characteristics of the structural distress will be detected via a structural inspection. A numerical analysis that considers the stratigraphic geological information and field structure state will be performed to study the structural stress and deformation response under different conditions of stratigraphic lateral pressure coefficient (K0) and thickness of the stratified rock layer (L). The results demonstrate that the warping deformation of horizontally stratified rock masses below the tunnel invert was the main cause of the invert anomalies; however, when K0 ≤ 1.0 or K0 ≥ 2.0, and when L was in the range of thin-thick thickness to medium-thick thickness, there was a high risk of instability and cracking in the tunnel invert. In addition, the numerical analysis demonstrated that the rock reinforcement scheme could deweaken the layer effect of the rock masses and suppress the uplift deformation, which is recommended for practical projects.
    publisherASCE
    titleFailure Mechanism and Countermeasures of an Operational Railway Tunnel Invert in Horizontally Stratified Rock Masses
    typeJournal Paper
    journal volume22
    journal issue2
    journal titleInternational Journal of Geomechanics
    identifier doi10.1061/(ASCE)GM.1943-5622.0002280
    journal fristpage04021280
    journal lastpage04021280-13
    page13
    treeInternational Journal of Geomechanics:;2022:;Volume ( 022 ):;issue: 002
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian