At a construction site, two piezometers have been installed. Piezometer A has a screen 8 m...
At a construction site, two piezometers have been installed. Piezometer A has a screen 8 m below ground surface and piezometer B has a screen 4 m below ground surface. The water level in piezometer A is 1 m below ground surface and the water level in piezometer B is 1.5 m below ground surface. Test pits at this site indicate that the water table is 1.55 m below ground surface. (5 marks)
a) Is groundwater flowing up or down?
b) If there is no horizontal groundwater flow and flow is at steady state and equal everywhere in the saturated zone, is hydraulic conductivity higher between 1.55 and 4 m deep or between 4 and 8 m deep?
c) What is the effective stress at 8 m? The saturated density of the overlying soil is 1800 kg/m^3 and the dry density of the soil is 1600 kg/m^3
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At a construction site, two piezometers have been installed.
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