Demonstration and Validation of a Fractured Rock Passive Flux Meter

2015 ◽  
Author(s):  
Kirk Hatfield
Keyword(s):  
Fractured Rock ◽  
Passive Flux Meter

scholarly journals A stochastic model for estimating groundwater and contaminant discharges from fractured rock passive flux meter measurements

2013 ◽  
Vol 49 (3) ◽  
pp. 1277-1291 ◽  
Author(s):  
Özlem Acar ◽  
Harald Klammler ◽  
Kirk Hatfield ◽  
Mark A. Newman ◽  
Michael D. Annable ◽  
...  
Keyword(s):  
Stochastic Model ◽  
Fractured Rock ◽  
Passive Flux Meter

Hydrogeological features of a highly fractured rock-slab

2015 ◽  
Vol 35 ◽  
pp. 283-287 ◽  
Author(s):  
Margherita Cecilia Spreafico ◽  
Federico Cervi ◽  
Vincent Marc ◽  
Lisa Borgatti
Keyword(s):  
Fractured Rock

Hydrogeology of conglomerate fractured-rock aquifers: an example from the Portofino's Promontory (Italy)

2016 ◽  
Vol 41 ◽  
pp. 22-25 ◽  
Author(s):  
Vittorio Bonaria ◽  
Francesco Faccini ◽  
Ilaria Cinzia Galiano ◽  
Alessandro Sacchini
Keyword(s):  
Fractured Rock ◽  
Fractured Rock Aquifers

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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