US EPA: EPA and Hardrock Mining: A Source Book for Industry in the .
Waste rock is removed from above or within the ore during mining activities. .... Critical Design Factor. Data Needs. Data Source/Methodologies ..... condition of the tailings would permit any iron sulfide minerals that are present to ...
www.yosemite.epa.gov/R10/WATER.NSF/.../$FILE/.../appendix%20f.pdf
Factor of safety - Wikipedia, the free encyclopedia
The difference between the safety factor and design factor (design safety .... and spacecraft use 1.2 to 3.0 depending on the application and materials. ...
www.en.wikipedia.org/wiki/Factor_of_safety Mechanical design failure analysis: with failure analysis system ... - Google Books Result
David G. Ullman - 1986 - Technology & Engineering - 166 pages
The value estimated is used as a design factor of safety for comparison to ... 1.1 If the material properties are not well known then, FSmaterial = 1.2-? ...
www.books.google.com/books?isbn=0824775341...