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《Chinese Journal of Underground Space and Engineering》 2006-06
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Parametric Analysis of Shear Creep Contitutive Equation of Discontinuous Plane with Regular Dentation

SHEN Ming-rong~(1,2),ZHANG Xue-jin~3(1.Key Laboratory of Geotechnical Engineering,Tongji University;2.Department of Geotechnical Engineering,School of Civil Engineering,Tongji University,Shanghai 200092;3.Shanghai Construction(Group) General Co.Shanghai 200120 China)  
Creep features of rock mass discontinuity are important objects in the field of rock mechanics.Based on a series of shear creep tests of discontinuous plane with regular dentation,the relationship between shear creep and different normal stress,shear stress,and slope ratio is obtained.By fitting the creep curves,the parameters of the fitted formula are compared to that of the constitutive equation of Burgers Model,and the changing rules of shear modulus and coefficient of viscosity as well as their influential factors are discussed.Then a rational and convenient method is acquired to establish a shear creep constitutive equation of discontinuous plane with regular dentation.
【Fund】: 上海市重点学科资助课题
【CateGory Index】: TU452
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