YANG Jian-ping, CHEN Wei-zhong, DAI Yong-hao. Study of scale effect of deformation modulus for fractured rock mass —— part Ⅱ: Analytical method[J]. 2011, 32(6).
YANG Jian-ping, CHEN Wei-zhong, DAI Yong-hao. Study of scale effect of deformation modulus for fractured rock mass —— part Ⅱ: Analytical method[J]. 2011, 32(6).DOI:
An analytical method for estimating cracked rock mass equivalent deformation modulus is presented
by considering deformation of rock block and cracks separately. Verification of the method for determining the equivalent rock mass deformation modulus is conducted against closed-form solutions for regular cracked rock mass
leading to very good agreements. Furthermore
equivalent deformation modulus of the randomly cracked rock mass in Jinping hydropower station are studied. Results gained by the analytical method show that representative eleementory volume(REV) of the studied rock masses is 8 m
which is the same as the results achieved by finite element method. Study results show that the developed analytical method can be used in estimating the REV properties of fractured rock mass
which is of great important in parameters determination for fractured rock mass.