An excavation is conducted on a silty sand deposit.
An Excavation Is Conducted On A Silty Sand Deposit 1 (38.85 KiB) Viewed 59 times
An Excavation Is Conducted On A Silty Sand Deposit 2 (20.68 KiB) Viewed 59 times
(a) Prove the relationship based on the Darcy's Law. A falling-hcad permeability test is first conducted on the silty sand. The initial head of 1.00 m dropped to 0.3 min 2.5 hours. The diameter of the standpipe is 5 mm. The soil specimen is 200 mm long by 100 mm in diameter. Calculate the coefficient of permeability of this soil. (6) From the Darey's law, prove the field pumping test formula for unconfined aquifer It is assumed that the coefficient of permeability k of a silty sand = 1 x 10 m/s The cross section of the excavation and the ground water table is schematically illustrated in Fig. 2. Estimate the flow rate using Darcy's law and Wellformula.
The cross section of the excavation and the ground water table is schematically illustrated in Fig. 2. Estimate the flow rate using Darcy's law and Well formula. R-200 Excavation Soil OPY JAZA Impermeable rock (Unit: meter) Fig. 2Cross section and ground water table of the excavation
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