Civil Engineering/Tunnel design

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Question
Hi,
How do we calculate oval shape tunnel design parameters? from where do I get formulas for different tunnel shape calculations?

Answer
Dear Aizaz

please take a look at this link:
http://www.google.com/url?sa=t&rct=j&q=tunnel+shape+calculation&source=web&cd=6&

The best shape of tunnel is the same as the best shape of an arc. Then you can follow the hyperbolical shape as a good alternative for vertical loading. When lateral loading comes you may have to vary your choice.

Please let me know about your idea and your method of reasonning.

Regards
BEH

Civil Engineering

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Babak Esmailzadeh Hakimi

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