The rapid urbanization in the twentieth century has increased the demand of a smart transportation system for the movement of goods and services. The geotechnical structures required the proper study, analysis and application of theoretical, analytical and numerical model(s) from the stability, safety and sustainability aspect. In the present research work, the stability analysis of different tunnel shapes for four different earthquake zones using the finite element analysis has been carried out. The Mohr–Coulomb material constitutive model has been implemented for the elasto-plastic behaviour of the basalt rock mass using 2D plane strain modelling. Three different shapes of tunnel, circular, horseshoe and arch, under four earthquakes of different magnitudes have been considered (i.e. 4.6, 5.6, 6.5 and 7.4 M). The present study suggested that arch-shaped tunnel is stable in all earthquake zones while the horseshoe-shaped tunnel is the most unstable. The effect of depth of overburden has been also considered for each case by varying the overburden depth in three intervals (5, 10 and 17.5 m). The study further reveals that with the increase in depth of overburden, the stability of the tunnel increases. It is also suggested that the weathering of rock has a significant effect on the deformations in tunnels which may in turn increase the instability of tunnel.


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    Titel :

    Dynamic Analysis of Tunnels in Western Ghats of Indian Peninsula: Effect of Shape and Weathering


    Weitere Titelangaben:

    Lecture Notes in Civil Engineering


    Beteiligte:
    Pathak, K. K. (Herausgeber:in) / Bandara, J. M. S. J. (Herausgeber:in) / Agrawal, Ramakant (Herausgeber:in) / Zaid, Mohammad (Autor:in) / Rehan Sadique, M. (Autor:in)


    Erscheinungsdatum :

    2020-09-28


    Format / Umfang :

    14 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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