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Recent content by Piezoball

  1. Piezoball

    Permeability, unloading

    F-d! I know wot you are saying...k=cv*gamma w*mv...true...but as I said in my last reply, both mv and cv are changing with stress...that's right if one can have mv and cv from a test it's possible to work out k based on this equation...well, after considering the difference between compression...
  2. Piezoball

    Permeability, unloading

    Thanks for your reply f-d if you mean the equation which has mv and cv, it couldn't be used to directly calculate k since both mv and cv change with effective stress. it's relatively straight forward to calculate mv (let say based using MCC model)but cv is another parameter which should be...
  3. Piezoball

    Permeability, unloading

    Hi fellows I appreciate it if anyone can refer me to a paper or text book talking about the change of soil permeability during unloading phase of consolidation test (Oedometer, Rowe cell or CRS test) I believe that permeability in any given soil is only related to the void ratio and stress...

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