A field sample of an unconfined aquifer is packed in a cylinder (with length 50 cm and diameter6 cm).the field sample is tested for 3 minutes under constant head difference of (16.3 cm). 45.2cm3 of water is collected at the outlet. Determine the hydraulic conductivity of the aquifersample

Calculate the hydraulic conductivity (ft/day) for each Q and t measurement using the rearranged…

Answered: A field sample of an unconfined aquifer…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Please answer with complete solution and Fbd. A field sample of an unconfined aquifer is packed in a test cylinder. The length and diameter of the cylinder are 60cm and 8cm, respectively. The field sample is tested for a period of 2min under a constant head difference of 18.5 cm. As a result, 50cm3 of water is collected at the outlet. Determine the hydraulic conductivity of the aquifer sample.
A tube well is constructed in a confined aquifer. The discharge of the tube well is 10 L/s, where the thickness of the aquifer is 11 meters, and the draw down is 20 meters at the tube well. The hydraulic conductivity of the permeable soil is 12 meters per day. An observation well at a radius of 500 meters has a piezometric surface of 47 meters. Calculate the diameter of the well.
Kindly give me right solution with step by step.
The permeameter in a permeability test setup involves a sample 200mm diameter and a length of 30mm. The height of water is kept constant at 400mm. In a duration of 4 min, water was collected in the graduated flask having a volume of 450cu.m. Determine the Hydraulic Conductivity.
Determine the following: a) hydraulic conductivity is ______ x10^3 cm/sec b) Transmissbility of the impermeable layer is _____ cm^2/sec c) The drawdown in the test well is ____ m
1. A 30cm long field sample is tested in a falling head permeameter with a 10 cm diameter cylinder. the diameter of the tube is 10mm. the water level in the tube is 35cm above the outlet level after one hour of operation, while the level drops to 22cm after 12 hours of operation. find the hydraulic conductivity of the sample.
14. A 300 mm diameter test well penetrates 24 m below the static water table. After 24 hours of pumping at 69 liters/sec, the water level in an observation well at a distance of 96 m from the test well is lowered 0.60 m and the other observation well at a distance of 34 m from the test well, the drawdown is 1.2 m. Compute the coefficient of permeability of the unconfined aquifer in m/day. Compute the transmissivity of the unconfined aquifer in m2/day. Compute the transmissivity if there is a confined aquifer of 8m, thick below the unconfined aquifer m2/day.
If the pore velocity in the intermediate zone is 0,5 m/day and the water content is 0.18. the tensiometer experiment used two points under surface with level difference of 1m. Hydraulic conductivity is 0.02 m/day. The difference in suction head between the two points is equal to
In a constant-head permeability test. A test gives these values: •L= 25 cm •A = 160 area of the specimen cm2 • Constant-head difference, h =1m • Water collected in a period of 5min and 40sec= 1 Liters Calculate the hydraulic conductivity in cm/sec.
(b) | A 400 mm diameter well fully penetrates a confined aquifer of thickness 20 m is pumped at a constant rate of 2500 m/day. The drawdown in the pumping well is observed as 4 m and the radius of influence is at a distance of 100 m. (i) Calculate the transmissivity of the aquifer; (ii) Determine the hydraulic conductivity of the aquifer material and draw the neat sketch of the well
A 400 mm diameter test well penetrates 27 m below the static water table. After 24 hours of pumping at 75 liters/sec, the water level in an observation well at a distance of 100 m from the test well is lowered 0.35 m. The other observation well at a distance of 40 m from the test well has a drawdown of 0.97 m. Compute the transmissibility of the aquifer in m?/day.
13. A 300mm diameter test well penetrates 27m below static water table. After 24 hours of pumping at 6.9liters/second. The water level in an observation well at a distance of 95m from the test well is lowered 0.5m and the other observation well at a distance of 35m from the test well, the drawdown is 1.1m. Determine the coefficient of permeability of the aquifer in m/day 60.27 b. 6.03 e. 70.27 f. 7.03 а.

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A field sample of an unconfined aquifer is packed in a cylinder (with length 50 cm and diameter 6 cm).the field sample is tested for 3 minutes under constant head difference of (16.3 cm). 45.2 cm3 of water is collected at the outlet. Determine the hydraulic conductivity of the aquifer sample