A confined aquifer has a transmissivity, T, of 30 m2/day and a storage coefficient, S, of 0.0008. A production well of radius, r, 0.2 m is pumped at 200 litres/min for 4 days and shut off. Calculate the maximum drawdown and the drawdown 10 days after the start of pumping at the well.

A confined aquifer has a transmissivity, T, of 30 m2/day and a storage coefficient, S, of 0.0008. A production well of radius, r, 0.2 m is pumped at 200 litres/min for 4 days and shut off. Calculate the maximum drawdown and the drawdown 10 days after the start of pumping at the well.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Problem (1) Find the quantity of discharge q in meter cube per second per meter width for the…

A: To Determine Quantity of discharge, q in m³/s/m

Q: Determine the basin size (length, width, and depth in ft) and the power input (hp) required given…

Q: The area of the reservoir is 1.5 km2 with an open evaporation of 85 cm/year. Assume that the average…

Q: 2. smaller than any of the cells to the left or right of the sheetpile. Is the velocity of flow in…

A: Flow net is given, Number of equipotential drops, ND= 7 Number of flow channels, Nf = 3 Coefficient…

Q: A water treatment plant has a capacity of 110,000 m³/day with two horizontal flow settling basins,…

A: Given Discharge 110000 m3/dayLong 24.5 mWidth 18 mDeep 3.7 mAngle 60°To find out Surface loading…

Q: What is the critical depth in a rectangular channel with 2.3 m width and 0.91 m2/s discharge per…

A: What is the critical depth in a rectangular channel and calculate minimum specific energy?

Q: In a homogeneous unconfined aquifer of area 3.00 km², the water table was at an elevation of 102.00…

Q: The flow net constructed for the dam is shown in the figure below. Taking the coefficient of…

A: Flow net for a dam is given- From the figure-Nf=no. of flow channels=3,Nd=No. of equipotential…

Q: For a given dam in the figure below, (A) Compute the flow rate q under the dam (B) Compute the water…

Q: The design flow for a water treatment plant (WTP) is 7.2 x 103 m³/d. The rapid mixing tank will have…

A: Given Data:The design flow for the WTP is Q=7.2x103 m3/day.The average alum dosage is da=50 mg/L.The…

Q: Given: Flow rate of water = 500 L/min Suspended solids concentration in influent water = 100 mg/L…

A: As per guidelines, only first question is been solved.

Q: A well is pumped for 20 minutes at a rate of Q=2599 cubic meters per day. After the pumping stopped…

Q: DAM 30 FT FLOW T = 20 FT SAND IMPERVIOUS ROCK B = 240 FT The total length of the dam shown is 800…

Q: A tube well having a diameter 15 cm fully penetrates a confined aquifer of thickness 10 m. The…

A: Confined aquiferDiameter of well (d) = 15cm Thickness of confined aquifer (B) = 10m Discharge from…

Q: A dam of 21.5 m height and has free board of 1.5 m. A flow net is constructed containing following…

A: A dam of 21.5 m height and has free board of 1.5 m.Number of potential drops = 12Number of flow…

Q: 1. The radial flow pump produces 0.8 m of frictional head losses within the pump. If 3.10 m of head…

A: Input head = 3.10mOutput head = 0.8mTo find:The pump efficiency

Q: Water is pumped from a well tapping an unconfined aquifer at a rate of 2400 m³/day. A no-drawdown…

Q: A manufacturing facility that manufactures printed circuit boards puts wash water that was used to…

Q: The inital rate of infiltration of a watershed is estimated as 2.1 in/hr, the final capacity is 0.2…

A: Initial infiltration rate (fo) = 2.1 in./hr Final infiltration rate (fc) = 0.2 in./hr Time constant…

Q: A 4-cell aquifer model is conceptualized in the figure below. Cell 1 River Cell 2 Cell 3 Cell 4 (a)…

A: width of the aquifer strip = 3 km length of each cell = 5km recharge rates - aquifer strip in cell…

Question

100%

A confined aquifer has a transmissivity, T, of 30 m2/day and a
storage coefficient, S, of 0.0008. A production well of radius, r, 0.2 m
is pumped at 200 litres/min for 4 days and shut off. Calculate the
maximum drawdown and the drawdown 10 days after the start of
pumping at the well.
Note: Calculate the result rounded to the second digit after the
decimal point.
Hint: Cooper-Jacobs Solution is valid for u<0.01:
In
2.25Tt
p2 S
S =
47T

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

The flow net constructed for the dam is shown in the figure below. Taking the coefficient of permeability as 3.8 x 10-6 m/s, the quantity of flow (in cm³ /s) under the dam per meter of dam is 6.3 m 17.2 m 9.4 m 1.6 m 50 m A A • A. V Impermeable stratum TXXX
Q/ Design the liquid storage tank if water capacity = 725,000 liters and with following specifications:- == fc' 35 Mpa, fy =420 Mpa Water height Hw-2.5m, Soil height H,= 2m, Ground water height Hg=1.5m Water density Yw= 10 kN/m³, Soil density y= 17.5 kN/m³ and 0 =30.
Question 1 The discharge from a fully penetrating well under steady state pumping in a confined aquifer is (1000 two wells located at 6 and 12 meters from the well are 3.0 m and 2.0 m respectively. Čalculate the permeability of the aquifer. Show the data on the neat sketch. liters per minutes. The aquifer has a thickness of 20 m. The drawdowns observed at
The 750-bed Associated Center of Medical Excellence (ACME) Hospital has a small activated sludge plant to treat its wastewater. The average daily Medical Center discharge is 1,250 L per day per bed, and the average soluble BOD5 after primary settling is 450 mg/L. The aeration tank has effective liquid dimensions of 10.0 m wide by 25.0 m long by 3.5 m deep. The plant operating parameters are as follows: MLVSS = 2,750 mg/L MLSS = 1.25 (MLVSS) Settled sludge volume after 30 min = 250 mL/LDetermine the following: aeration period, F/M ratio, SVI, solids concentration in return sludge.
Calculate the minimum fluidization velocity for an anthracite bed having following characteristics; d90 = 2.9 mm, ?anthracite = 1600 kg/m3, ?water = 998 kg/m3 at 20°C; µ = 1.002x 10-3 kg/m.sec