Geomechanics and Ground Control · Geomechanics · 1 mark · Multiple choice
The graph plots discharge Q against Ah/L for rock samples E,F,G. Here A is cross-sectional area,h the hydraulic head and L sample length. Which conductivity order follows?
Darcy’s law gives Q=kAh/L, so the slope of the displayed straight line is hydraulic conductivity k. E has the steepest slope, F the intermediate slope and G the smallest. Therefore kE>kF>kG, A.
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