A confined aquifer is 6 m thick and the coefficient of permeability in the soil is2m/day-m2. Two wells tapped on the aquifer are 100 m apart, and the difference inthe water elevation in the wells is 3.0 m. The effective porosity is 0.38. What are theaverage (Darcy) velocity through the aquifer and the flow rate per meter width ofaquifer?Darcy velocity is 0.06 m/day and the flow rate is 0.36 cubic meter per day per meter width.Darcy velocity is 0.16 m/day and the flow rate is 0.06 cubic meter per day per meter width.Darcy velocity is 0.16 m/day and the flow rate is 0.36 cubic meter per day per meter width.Darcy velocity is 0.06 m/day and the flow rate is 0.16 cubic meter per day per meter width.The best answer is not among the choices.

Answered: average (Darcy) velocity through the…

Engineering

Civil Engineering

average (Darcy) velocity through the aquifer and the flow rate per meter width of aquifer?

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 7.22P: Refer to Figure 7.24. The following data were collected during the field permeability measurement of...

See similar textbooks

Related questions

Q: A dam 4 m wide at the top, 16 m at the bottom, and 24 m high, has water 18 m deep on its vertical si...

Q: Select all true statements regarding the volume factor, Cy, used to adjust the design bending stress...

A: This question is related to the timber from Building Material.

Q: 10 т 10 т 10 т K 6 т 6 т 25° 25°% 40 kN 50 kN 6 т D 6 т B

Q: 5. The corrosion of reinforcement due to extreme exposure is common for structure located in

A: To find: The erosion of support because of outrageous openness is normal for structure situated in

Q: 2.00 1.00 2.00 1.00 PRELIM EXAM 10 KN/m 1. If the allowable axial stress of steel cable is 5 KN/m A ...

Q: Question: What is hydrostatic uplift on the Dam? Note: -NO PLAGIARISM PLEASE -ESSAY TYPE -COMPUTERIZ...

A: Hydrostatic uplift : It is an upward force or pressure applied to a structure below. It has the pot...

Q: 4. A V-notch weir is installed at the end of a rectangular water tank, as shown in the figure. Deter...

Q: Determine the value of longitudinal strain if poisson ratio 0.23 and lateral strain -0.25

Q: What is Porosity?

A: ENGINEERING GEOLOGY:

Q: Obsolescence resulting from the discovery of another asset that is sufficiently superior to make it ...

A: This question is related to the estimate costing and valuation engineering.

Q: 5.The offset distance from PC to PT of asimple curve is 18m and the angle of intersection of the tan...

Q: 1. The ordinate of a point P is twice the abscissa. This point is equidistant from (-3, 1) and (8, -...

A: Note- Hi! Thank you for the question As per the honor code, We’ll answer the first question since th...

Q: 5. The width of a reinforced beam is 300 mm with an effective depth of 580 mm. It is reinforced for ...

Q: Pb # 4: A supply pipe is 1500+(Reg.No/100) ft long, water is initially flowing through it at 2 fps, ...

Q: What is the physical layout of an EnCase evidence file?

A: Physical layout of the EnCase evidence file:- The header appears at the front of the file and it wa...

Q: A solid aluminum shaft of 120 mm diameter fits concentrically in a hollow steel tube. Determine the ...

Q: The system is released from rest with no slack in the cable and with the spring stretched 260 mm. De...

Q: rectangular dam has a height of 5 m. It retains water that is 4.2 m deep. Calculate the minimum widt...

Q: Find the ventical moyement K 120 kN og Piy Stec Aluminum 4m 3m A 3m Im Steel A= 600 mm E = 200 6N/m?...

A: Find the vertical movement of P

Q: How I find gamma dry for layer 2?

A: Given Layer 2 of silty clay Gamma total, γb = 15 kN/m3 OCR = 1.2 Cc = 0.2 To Determine Gamma dry (Yd...

Q: Determine the forces in members AE, BF, and CF of the truss, and state if the members are in tension...

Q: A topographic map has a contour interval of 1/2 m and a scale of 1:1200.If two adjacent contours are...

Q: 7. A horizontal collimation test is performed on an automatic level. With the instrument setup at po...

Q: A. Reversed curve with diverging tangents is to pass through three lines to form a center line of a ...

Q: What is C sub r referring to?

A: Cr in the given table represents Recompression index.

Q: Find the ventical movement og Pif P is 120 kN Steel Aluminum 4m 3m 3 m 2m Im to P= 120 kN Aluminum S...

Q: An inclined tank contains three different liquids A, B, and C with specific gravities of 0.66, 1.55,...

Q: List and describe two situations in which conceptual (qualitative) and numerical description of fric...

A: according to the question; Friction : Shear stress in dynamic fluids is caused by friction in th...

Q: For the following data, compute the horizontal distance for a recorded slope distance AB, a) AB = 38...

Q: The compaction requirement fpr clay soils in traditional applications is 90 to 95 % of maximum dry d...

Q: . Calculate the cracking moment (max. resisting moment) for the unreinforced concrete beam shown. As...

A: As per Bartleby's guidelines we are supposed to answer only first question.

Q: Determine Base period=88 days Duty=320 ha/cumec

Q: 4. The 500-kg uniform beam is subjected to the three external loads shown. Compute the reactions at ...

A: This question is related to strength of materials. Using force equilibrium equation we calculate rea...

Q: Determine the normal stress in members BD, AC, and BCin the truss shown. The cross-sectional area of...

Q: 12 KN. P 4m 12KN K M 4m F. 32 KN 6 m E A스 B, e 10m 16 m 16 m 10 m-

Q: W-S. 45

Q: 61. The repair and rehabilitation of damaged or spalled concrete is done by removing the A. O Loose ...

A: The repair and rehabilitation of damaged or spalled concrete is done by removing the loose concrete ...

Q: How would I calculate gamma dry for layer 1?

A: To determine the dry unit weight of the soil layer 1. Given, Total unit weight of soil in layer 1 ...

Q: 45. Which paint contains polystyrene as a base? A. O Synthetic rubber B. O Enamel C. O Aluminium D. ...

A: emulsion

Q: 9. In order to find the difference in elevation between two points P and Q, a level was set upon the...

A: Given data in question Line PQ Distances Rod readings To find out Corrected elevation difference ...

Q: Determine Base period=88 days Duty=320 ha/cumec

Q: The 3 kg slider is released from rest at point A and slides with negligible friction in a vertical p...

Q: From the figure as shown, the cable BC supports the horizontal bar AB. Compute the shear stress at t...

A: To determine the shear stress in the pins at support A and B. Given, Diameter of pin at A (da) = 2...

Q: G8.2cm 10cm 20cn 50cm loo Cm 1og 20g Cog FBD Edz f W F2 mig:1og FI mig: 20g Mag= 60g

Q: Instructions: Record your answers in the space provided to the correct number of significant digits ...

Q: Situation 2 | Beam ABCDEFG below is subjected to multiple loads as show. The total length of the bea...

Q: At the beginning of each month, P 200 is deposited into a retirement fund. The fund earns 6% compoun...

Q: me examples of scientific method about engi

A: The majority of engineering designs are inventions—devices or systems created by human effort that d...

Q: How does the use of geotextile as reinforcement in mechanically stabilized earth walls affect the st...

A: Brief concept- Geotextiles- These are types of fabrics. These are widely used in geotechnical applic...

Q: A new engine was installed by a textile plant at a cost of P 300,000 and projected to have a useful ...

Concept explainers

Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.

Question

A confined aquifer is 6 m thick and the coefficient of permeability in the soil is
2m/day-m2. Two wells tapped on the aquifer are 100 m apart, and the difference in
the water elevation in the wells is 3.0 m. The effective porosity is 0.38. What are the
average (Darcy) velocity through the aquifer and the flow rate per meter width of
aquifer?
Darcy velocity is 0.06 m/day and the flow rate is 0.36 cubic meter per day per meter width.
Darcy velocity is 0.16 m/day and the flow rate is 0.06 cubic meter per day per meter width.
Darcy velocity is 0.16 m/day and the flow rate is 0.36 cubic meter per day per meter width.
Darcy velocity is 0.06 m/day and the flow rate is 0.16 cubic meter per day per meter width.
The best answer is not among the choices.

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 with 1 images

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

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
A 0.3 m well has a 25 m long screen that covers the entire depth of an aquifer. The aquifer medium has an effective grain size of 1.5 mm. The well is pumped at a rate of 0.2 m³/s. Assess the validity of Darcy's law near the well. Assume, porosity = 0.25 (Dynamic viscosity of water at 20°C is 1.005*10-3 Ns/m2)
L = 370 mm A = 145 cm^2 h = 340 mm Water collected in 3 min Q = 580 cm^3 Void ratio of sand e= 0.66 Determine the Hydraulic conductivity and seepage velocity.
An unconfined aquifer is 100 feet thick was evaluated using a field pumping test. The depth to groundwater is 10 feet. At a distance of 1000 feet, the drawdown was 40 feet, and at a distance of 5000 feet it was 20 feet. Find the permeability of the aquifer assuming that a steady-state of 960 gal/minute during the test in ft/sec.
A confined aquifer shown has hydraulic conductivity of 52 m/day with void ratio of 0.282. The average thickness is 30 m and the average width is 4 km. el = 85 m el = 55 m 30 m aquifer 1400 m Determine the nearest value of the time of travel from the head of aquifer to a point 5.2 km downstream in days (in a whole day).
2. An aquifer has a hydraulic conductivity of 180 ft/day, and effective porosity of 33% and is under a hydraulic gradient of 0.0004. a) Compute the Darcy velocity (also called Darcy flux). b) Compute the actual velocity (also known as the average linear velocity). c) The water temperature was 14 Degree C, and the mean pore diameter was 0.30 mm. d) Was it permissible to use Darcy's law under these circumstances? e) What is the reason for your answer?
2. A confined aquifer is recharged by a continuous supply of water from the certain source. The average thickness of the aquifer was determined to be 25 m and the average width is 4 km. The hydraulic conductivity of the aquifer was obtained at 40 m/day and its void ratio is 0.3333. The piezometer heads in two wells 1.325 km apart are 65 meters and 60 meters from a common reference datum. Determine the rate of flow in cubic meters per day. Determine: •compute the rate of flow through the aquifer in m3/day •compute the seepage velocity in m/day •compute the time of travel from the head of the aquifer to a point 8 km downstream in days
A silty-sand aquifer has a hydraulic conductivity of 10-4 cm/s. Two piezometers are located 300 m apart and indicate groundwater elevations of 12m and 10m above a datum. The porosity of the aquifer is 0.30. (a) What is the specific discharge in this aquifer? (b) What is the maximum velocity that a salt tracer would move in this aquifer? (c) Assuming that the aquifer is 8 m in depth, what is the discharge per meter perpendicular to the water flow?
CVE 331: Theoretical hydraulic conductivity calculation Problem 1: The hydraulic conductivity of a sandy sol is 7x10 cm/sec at void ratio 0.68. What is the hydraulic conductivity at void ratio 0.85 ? (o.re) A= 2,42e k2 ei Problem 2: The hydraulic conductivity of a clay soil is 121o* cm/sec at void ratio 0.56, and 3.1x10 cm/sec at void ratio 0.74. What is the hydraulic conductivity the soll at void ratio 0.65 ? e3 ki %3D - 3. 797 GRAIN SIZE DISTRIBUTION GRAPH. A- PROJECE
2 The difference between the free water levels in two wells 48 m apart in an aquifer is 0.6 m. 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.
cademic) X = 4 km If aquifer hydraulic gradient, hydraulic conductivity and effective porosity are found to be 0.4, 0.5 m/day and 0.2 respectively, determine how long the contaminants have been in the aquifer (in years)? 1 year = 365 days %3D
From the figure shown, the thickness of permeable layer is 1.1m making an angle of 14 degrees with the horizontal. K= 4.87x10^-12 cm/sec. If the vertical thickness depth of the aquifer at point of the first piezometer (left) is 1.5m and the other point at second piezometer is 1.1m, determine the flow rate. h=1.4 m Direction impervious layer of seepage 3 m 14 1.1 m impervious layer L. 14