Stress dependent mechanical properties and bounds of poisson's ratio for fractured rock masses investigated by a DFN-DEM technique

2004 ◽  
Vol 41 ◽  
pp. 390-395 ◽  
Author(s):  
K.-B Min ◽  
L Jing
Keyword(s):  
Mechanical Properties ◽  
Poisson’S Ratio ◽  
Fractured Rock ◽  
Poisson's Ratio ◽  
Rock Masses ◽  
Stress Dependent ◽  
Fractured Rock Masses

scholarly journals Stress-dependent permeability of fractured rock masses: a numerical study

2004 ◽  
Vol 41 (7) ◽  
pp. 1191-1210 ◽  
Author(s):  
Ki-Bok Min ◽  
J. Rutqvist ◽  
Chin-Fu Tsang ◽  
Lanru Jing
Keyword(s):  
Numerical Study ◽  
Fractured Rock ◽  
Rock Masses ◽  
Stress Dependent ◽  
Fractured Rock Masses

Effect of seismic waves on the hydro-mechanical properties of fractured rock masses

2017 ◽  
Vol 16 (3) ◽  
pp. 525-536 ◽  
Author(s):  
Meysam Lak ◽  
Alireza Baghbanan ◽  
Hamid Hashemolhoseini
Keyword(s):  
Mechanical Properties ◽  
Seismic Waves ◽  
Fractured Rock ◽  
Rock Masses ◽  
Fractured Rock Masses

The Model for Calculating Elastic Modulus and Poisson's Ratio of Coal Body

2013 ◽  
Vol 6 (1) ◽  
pp. 36-43 ◽  
Author(s):  
Ai Chi ◽  
Li Yuwei
Keyword(s):  
Elastic Modulus ◽  
Poisson’S Ratio ◽  
Fractured Rock ◽  
Rock Block ◽  
Poisson's Ratio ◽  
Linear Elastic ◽  
Study Results ◽  
The Face ◽  
Block Face ◽  
Coal Rock

Coal body is a type of fractured rock mass in which lots of cleat fractures developed. Its mechanical properties vary with the parametric variation of coal rock block, face cleat and butt cleat. Based on the linear elastic theory and displacement equivalent principle and simplifying the face cleat and butt cleat as multi-bank penetrating and intermittent cracks, the model was established to calculate the elastic modulus and Poisson's ratio of coal body combined with cleat. By analyzing the model, it also obtained the influence of the parameter variation of coal rock block, face cleat and butt cleat on the elastic modulus and Poisson's ratio of the coal body. Study results showed that the connectivity rate of butt cleat and the distance between face cleats had a weak influence on elastic modulus of coal body. When the inclination of face cleat was 90°, the elastic modulus of coal body reached the maximal value and it equaled to the elastic modulus of coal rock block. When the inclination of face cleat was 0°, the elastic modulus of coal body was exclusively dependent on the elastic modulus of coal rock block, the normal stiffness of face cleat and the distance between them. When the distance between butt cleats or the connectivity rate of butt cleat was fixed, the Poisson's ratio of the coal body initially increased and then decreased with increasing of the face cleat inclination.

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