Abstract

Tunnel plays a vital role in our way of life as it eases the method of the transportation. Lining is the necessary permanent ground support system to the periphery of a tunnel or shaft excavation, and/or the material installed in the position with an inner surface suitable for the specific end use of the underground excavation. Lining of tunnel is technically an important component and generally constitutes 30–40% of the total cost of the tunnel. Therefore, lining operation requires considerable study and careful planning. Due to complexity of various problems in engineering field, finite element analysis [FEA] is widely used. It divides the domain of the problem into several sub-domains; thus, it is easier to solve the complex problem. In this paper, cut-and-cover canal tunnel lining subjected to gravity load, horizontal and overburden pressure using FEA-based software “GTS-NX”, the thickness of the tunnel has been designed, and the result is compared with USBR method. Thickness of tunnel lining for lower overburden loading over crest in both the analysis is same, but for higher overburden loading (8 and 11 m), thickness is slightly less in GTS-NX than USBR monogram method.

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