چکیده مقاله
A new rigorous approach for calculating the distribution of stresses and displacements around a circular opening excavated in a strain softening generalized Hoek Brown rock mass is presented After the yield criterion, the plastic potential function, and the evolution of Hoek Brown strength parameters are defined, the differential equilibrium equation and equation of compatibility of deformations are solved simultaneously by means of Runge Kutta forth order method In addition, the applicability and accuracy of the proposed method is shown through an example Finally, the influence of the softening parameter, appearing in the evolution of Hoek Brown parameters, is examined through the establishment of the ground response curves
کلیدواژهها
نویسندگان
A. Fahimifar
Department of civil and environmental engineering, Amirkabir university of technology, Hafez Ave, Tehran, Iran
A.R. Hedayat
Department of civil and environmental engineering, Amirkabir university of technology, Hafez Ave, Tehran, Iran
شیوه ارجاع
Fahimifar, A. and Hedayat, A.R.,1388,The elasto-plastic analysis of a circular opening excavated in a generalized Hoek-Brown rock material,8th International Congress on Civil Engineering,Shiraz
ارائهشده در
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