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  1. andreasprucker

    Simplified Bishop Method - sec(alpha) ??

    Hi all, using the bishop method for the first time. F-resisting = [c'b+(w-ub)tan(phi')] * sec(alpha) / [1+tan(alpha)tan(phi')/FS] is the formula that I would like to use but I don't know what sec(alpha) means. I should not be too hard and I hope that someone can help me...

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