I found this math problem while searching about coal tipples. Has anyone seen this problem before and tried to work a solution. Here's the link if anyone is interested.
http://www2.kenyon.edu/Depts/Math/Paquin/1993AMCM.pdf
I also found a very interesting book about the design of mining structures in .pdf format. It's primarily an engineering book for all of the rivet counters out there, but there are a lot of good photos and diagrams in the book. It can be downloaded here
http://books.google.com/books?hl=en...qHrszw&sa=X&oi=book_result&resnum=1&ct=result
http://www2.kenyon.edu/Depts/Math/Paquin/1993AMCM.pdf
I also found a very interesting book about the design of mining structures in .pdf format. It's primarily an engineering book for all of the rivet counters out there, but there are a lot of good photos and diagrams in the book. It can be downloaded here
http://books.google.com/books?hl=en...qHrszw&sa=X&oi=book_result&resnum=1&ct=result
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