A tracer takes I00 days to travel from Well-I to Well-2 which are I00 m apart. The elevation of water surface in Well-2 is 3 m below that in Well-1. Assuming porosity equal to 15%, the coefficient of permeability (expressed in m/day) is

A tracer takes I00 days to travel from Well-I to Well-2 which are I00 m apart. The elevation of water surface in Well-2 is 3 m below that in Well-1. Assuming porosity equal to 15%, the coefficient of permeability (expressed in m/day) is

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter7: Permeability

Section: Chapter Questions

Problem 7.23P

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Question

Correct please

A tracer takes I00 days to travel from Well-I to Well-2
which are I D0 m apart. The elevation of water surface
in Well-2 is 3 m below that in Well-I. Assuming porosity
equal to 1 5%, the coefficient of permeability
(expressed in m/day) is

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A tracer takes I00 days to travel from Well-I to Well-2 which are I D0 m apart. The elevation of water surface in Well-2 is 3 m below that in Well-I. Assuming porosity equal to 1 5%, the coefficient of permeability (expressed in m/day) is
Pleasecorrect
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Qs. The difference between the free water levels in two wells 48 m part in an aquifer is 0.6m. It took an interval of 8 hours between detecting the traces of a tracer material at the two wells in succession. The porosity of the aquifer is 25%. The coefficient of permeability of the aquifer is_______ cm/sec.please dont solve wrong
Please explain part 1 (ii) of the question given. 1) i) A 6 inch diameter well that fully penetrates a 40ft thick open aquifer is pumped at a rate of 100 gpm. The drawdown in the well is 22ft when a steady water level is established. The drawdown in a well 152ft distant is 12ft. Estimate the coefficient of permeabiliity of the soil deposit. Answer of permeability is K= 9.88 x10-4 ft/sec. ii) Discuss the validity of the answer obtained in 1( i ) and suggest how would you improve the test data obtained to produce a better value of k. Why?
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Assuming the groundwater table is at ground surface and the soil bulk unit weight is 20kN/m3. At 2m depth below ground level. The pore water pressure is approximately: O a. 19.6 kPa O b. 9.8 kPa O c. 200 kPa O d. 98 kPa
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