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    Flat Cavity Expansion: Theoretical Model and Application to the Interpretation of the Flat Dilatometer Test

    Source: Journal of Engineering Mechanics:;2016:;Volume ( 142 ):;issue: 001
    Author:
    Hang Zhou
    ,
    Gangqiang Kong
    ,
    Ping Li
    ,
    Hanlong Liu
    DOI: 10.1061/(ASCE)EM.1943-7889.0000957
    Publisher: American Society of Civil Engineers
    Abstract: This paper presents a theoretical model for flat cavity expansion in elastic soil. By using the conformal mapping method, the nonaxisymmetric boundary value problem of flat cavity expansion is transformed from the original physical plane into the axisymmetric boundary value problem in the phase plane, which results in a series of closed-form solutions for the stress and displacement induced by the flat cavity expansion. These closed-form solutions are then validated by FEM and provide the basis for the interpretation of the list-off pressure of the flat dilatometer test. Subsequently, a closed-form solution for the list-off pressure in the flat dilatometer test is given. The suitability of the solution for the list-off pressure is validated by comparing the predictions with a series of field test data provided by previous scholars. Good agreement is achieved. The proposed theoretical model improves on the previous empirical method for the interpretation of the list-off pressure in the flat dilatometer test. It also provides a new method for analyzing the nonaxisymmetric cavity expansion problem, improves the theory framework of the conventional cavity expansion theory, and can be seen as an extension of the conventional cavity expansion theory.
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      Flat Cavity Expansion: Theoretical Model and Application to the Interpretation of the Flat Dilatometer Test

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4243007
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    contributor authorHang Zhou
    contributor authorGangqiang Kong
    contributor authorPing Li
    contributor authorHanlong Liu
    date accessioned2017-12-30T12:53:33Z
    date available2017-12-30T12:53:33Z
    date issued2016
    identifier other%28ASCE%29EM.1943-7889.0000957.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4243007
    description abstractThis paper presents a theoretical model for flat cavity expansion in elastic soil. By using the conformal mapping method, the nonaxisymmetric boundary value problem of flat cavity expansion is transformed from the original physical plane into the axisymmetric boundary value problem in the phase plane, which results in a series of closed-form solutions for the stress and displacement induced by the flat cavity expansion. These closed-form solutions are then validated by FEM and provide the basis for the interpretation of the list-off pressure of the flat dilatometer test. Subsequently, a closed-form solution for the list-off pressure in the flat dilatometer test is given. The suitability of the solution for the list-off pressure is validated by comparing the predictions with a series of field test data provided by previous scholars. Good agreement is achieved. The proposed theoretical model improves on the previous empirical method for the interpretation of the list-off pressure in the flat dilatometer test. It also provides a new method for analyzing the nonaxisymmetric cavity expansion problem, improves the theory framework of the conventional cavity expansion theory, and can be seen as an extension of the conventional cavity expansion theory.
    publisherAmerican Society of Civil Engineers
    titleFlat Cavity Expansion: Theoretical Model and Application to the Interpretation of the Flat Dilatometer Test
    typeJournal Paper
    journal volume142
    journal issue1
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)EM.1943-7889.0000957
    page04015058
    treeJournal of Engineering Mechanics:;2016:;Volume ( 142 ):;issue: 001
    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
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