A constant-head permeameter has a diameter of 2.5 cm. A 5.0 cm soil sample with the same cross-sectional area is place in the permeameter. When a head difference of 5 cm is applied between the inlet and outlet ports, the permeameter discharges 50 cm3 of water in 90 s.
(a) Calculate the hydraulic conductivity of the soil in m/s and in ft/day. (b) What is the intrinsic permeability of the soil at 20 ◦C?
(c) What would be the soil’s hydraulic conductivity for salt water with a density of 1055 kg/m3 and a dynamic viscosity of 1.15 × 10−3 N · s/m2 ?
A constant-head permeameter has a diameter of 2.5 cm. A 5.0 cm soil sample with the...
Problem 3: A constant-head permeability test was performed on the soil sample shown below. The hydraulic conductivities were 0.04 cm/s for the sand and 0.0004 cm/s for the silt. The cross-sectional area of the sample is 10 cm², of which 9 cm' is sand and the remainder is silt. (a) Plot how the total hydraulic head (expressed in terms of AH) and hydraulic gradient vary along the length of the sample. (b) What would be the hydraulic conductivity (k) for...
Please write correct option after completion of your answer Length of soil sample for constant head permeability test is 30 cm, Area of specimen is 177cm2 constant head difference is 50 cm, total volume of water collected in 5 min is 350cm Calculate the hydraulic conductivity of the soil. ) 1.09x10 cm/sec )3.95x10cm/sec A) 2.85 x10'cm/sec )1.09x10 cm/sec We were unable to transcribe this imageFind the error in the discharge when a head of water over the crest of a...
5. A falling head permeameter was used to determine the permeability of a sandy-clay soil sample having a cross sectional area of 12.56 cm2 and a length of 18 cm. The cross-sectional area of the permeameter standpipe is 2 cm*. The time during which the level of water in the standpipe ction 22035 TR 0925-1040 NCE 3610 Homework Set 2 Spring 2019 dropped from 100 to 50 cm was 4 minutes. Determine the coefficient of permeability of this material.
2. A cylindrical sample of soil is confined in a rigid-wall permeameter and measures 10 cm in diameter and 20 cm in length. The axis of the cylindrical sample lies in a horizontal plane. They hydraulic head at the left end of the specimen is controlled by a reservoir; the water surface in the reservoir is exactly 100 cm above the horizontal axis of the cylindrical soil sample and remains at 100 cm through a system that automatically adds water...
could you please help with question #2? 2. A confined aquifer has a specific storage of 2.5 x 10ml and a thickness of 27 m. How much water would it yield if the potentiometric surface declined an average of 4.3 m over a circular area with a radius of 950 m? Recall that the area of a circle = ttrº [6 pts) 3. The hydraulic conductivity of a silty sand was measured in a laboratory permeameter and found to be...
The figure below shows the soil profile conditions below a 5-m deep pond. Water is seeping directly downward under steady-state conditions through the clay layer into underlying gravel. Assume the elevation datum at the top of the gravel layer and that the hydrostatic ground water table is also found in the top of the gravel and its position does not change with time or amount of flow. For these flow conditions, calculate the following: a. b. c. d. e. f....