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Abstract It¢s generally to determine deformation properties of large-scale and deep rock mass by the relationship between compression wave velocity(VP) and deformation modulus(E0) of rocks obtained by bearing plate test in hydroelectric project. The relation between E0 and VP is related to the representation of geological subjects,test number,test methods and the selected function,relationship between E0 and VP. The impact to deformation properties is studied,which comes from four aspects of the test number:geological representation,experimental conditions,and function relations. Taking typical projects as examples,the features and general rules of the E0-VP relationships established by more than 10 domestic hydroelectric projects are analyzed. The result shows that the established relationship between E0 and VP has certain universality and applicability subjected to the consideration of main factors,which has very important significance for evaluating deformation parameters of wide range rock mass and deep rock mass in different exploration phases.
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Received: 20 February 2009
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