Rock crack scale

[keopisey]

Dear All,

As one of the candidate of Master degree, I have studied one subject called Advanced Rock Mechanic. In this subject, I found some difficulties with the scale of rock crack. I want to know how many scale there are, and also their application. So could you please suggest me some documents and informations related to this one?

Best Regard

[yly8]

hi
here i found in a book: Foundation Engineering Handbook by Robert Duy - wich is posted in this forum i think
see page 4.14
hope this will help you
best regards