%0 Journal Article
%A ZHU Xi-xi
%A CHEN Cong-xin
%A XIA Kai-zong
%T Methods of Obtaining Mechanics Parameters of Rock Mass Based on Hoek-Brown Criterion
%D 2015
%R 10.11988/ckyyb.20140215
%J Journal of Yangtze River Scientific Research Institute
%P 111-117
%V 32
%N 9
%X Having elaborated the importance of study on rock mechanics parameters, we introduced the principles and methods of determining rock mechanics parameters by Hoek-Brown criterion. The mechanical parameters of soft-hard interbedded rock slope at Pengjiawan of Yichang-Badong expressway are taken as research example. On the basis of physico-mechanical parameters, rock integrity factor and wave velocity obtained from laboratory test, we reduced the physico-mechanical parameters by Hoek-Brown criterion. Comparative analysis on the results suggest that the shear strength parameters determined by linear regression analysis and non-linear fitting method are both logical; the numerical simulation result is consistent with the deformation and failure characteristics of actual rock. The results provide guidance for the determining of rock mechanics parameters in other similar projects.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20140215