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Physics/Tunnel Shapes.

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Question
Dear Prof Johnson

Can we Design tunnels without a circular shape?.

Examples - Triangle, Square, Rectangle, Kite, Rhombus etc

Thanks
Prashant

Answer
Hello Prashant,

Besides circular, it is fairly common for tunnels to have a flat floor, straight upright sides, and a top that is an arch. The other shapes you mention could be done, but the overhead straight pieces would need to be much stronger than is needed for the shapes that are commonly used.

I hope this helps,
Steve

Physics

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Volunteer


Steve Johnson

Expertise

I would be delighted to help with questions up through the first year of college Physics. Particularly Electricity, Electronics and Newtonian Mechanics (motion, acceleration etc.). I decline questions on relativity and Atomic Physics. I also could discuss the Space Shuttle and space flight in general.

Experience

I have a BS in Physics and an MS in Electrical Engineering. I am retired now. My professional career was in Electrical Engineering with considerable time spent working with accelerometers, gyroscopes and flight dynamics (Physics related topics) while working on the Space Shuttle. I gave formal classroom lessons to technical co-workers periodically over a several year period.

Education/Credentials
BS Physics, North Dakota State University
MS Electrical Engineering, North Dakota State University

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