Abstract
The intensity and deformation characterization of a rock mass is an important input parameter in any analysis of rock mass behavior. Field tests to determine this parameter directly are time consuming, expensive and the reliability of the results of these tests is sometimes questionable. Consequently, several authors have proposed empirical relationships for estimating the value of an isotropic rock mass deformation modulus on the basis of classification schemes. But the result is different by different people. Therefore, A new approaches to the mechanical characterization of jointed rock masses has been studied based on the test of little rock mass sample. But preparation of jointed rock mass samples in site is very difficult. In this paper, a method for collecting, preparing and describing samples with extremely to very closely spaced fractures is described where no cementing material is required.
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