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In case you do not want to take rock participation , the design will be conservative unless rock mass is of very poor , extremely poor , soil soft strata.
Hydro tunnels carrying water at pressure are provided with concrete / rcc lining , but rock participation depending on type of rock mass is also considered as per prevailing practice , for which BIS ...
I am designing a pressurized tunnel for 35 m of water head. The inverted D shape tunnel is about 6.1 m. The tunnel should hold 35 m head equivalent pressure.
I have modeled in ansys w ...