The Macro-Damage Behaviour of Rockmass and Its Survey Methods in Engineering Geology

ln this paper,the macro一joint body in rockmass is described as an initial damage. The anisotropicmacro一damage tensor of rockmass is proposed .The damage strain is presented,which is caused by joint jump dis-placement. Its equivalent continuum model is established in which the main variables are volume averaging stress andstrain. ln the meanwhile,in order to obtain the engineering geological information for determining the macro-damage behaviour of rockmass,the survey methods in situ in engineering geology are discussed.