Homework Answers
Add Answer to:
Problem 3. For a falling-head permeability test, the following are given: Length of soil spec imen...
In a laboratory, a falling-head permeability test was conducted on a silty soil. For the falling-head...
In a laboratory, a falling-head permeability test was
conducted on a silty soil. For the falling-head apparatus, the
following data were obtained:
1. Length of Specimen = 15.80 cm.
2. Diameter of Specimen = 10.16 cm.
3. Cross-sectional area of burette = 1.83 cm2
4. Hydraulic head at beginning of test (h1) = 120.0
cm.
5. Hydraulic head at end of test (h2) = 110.0 cm.
6. Time required for water in the burette to drop from
h1 to h2...
The following data are for falling-head test performed at 25⁰C Temperature: Length of the soil sample...
The following data are for falling-head test performed at 25⁰C Temperature: Length of the soil sample = 40 cm Area of the soil sample = 78,54 cm2 Diameter of the standpipe = 1.1 cm At time t=0 head difference = 54 cm At time t=8 min, head difference = 22 cm a) Determine the permeability of the soil b) What was the head difference at t=4 min?
Question 1 a) Hydraulic conductivity of soils is an important parameter for the design of engineering...
Question 1 a) Hydraulic conductivity of soils is an important parameter for the design of engineering structures (such as dams, etc.). Why? b) With the help of a fully labelled diagram, derive the expression for the hydraulic conductivity of soil based on the falling-head permeability test. c) The following data was recorded from a falling-head permeability test: Area of the soil specimen = 10 cm Length of the soil specimen = 22 cm Area of standpipe = 0.4 cm2 Head...
5. A falling head permeameter was used to determine the permeability of a sandy-clay soil sample...
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.
Q3 (a) A falling head permeability test was conducted on a soil sample with diameter of...
Q3 (a) A falling head permeability test was conducted on a soil sample with diameter of 76 mm and sample length of 70 mm. The sample was connected to a standpipe of diameter 1.5 mm, where the water level (total head) was measured to drop from 1.56 m to 1.18 m in 65 s. Determine the coefficient of permeability of the soil sample. (b) Explain why it is more preferable to conduct the falling head test, instead of the constant...
Problem 3. In a constant-head permeability test, the length of the specimen is 150 mm and...
Problem 3. In a constant-head permeability test, the length of the specimen is 150 mm and the cross-sectional area is 3167 mm". If k = 0.062 cm/sec and a rate of flow of 160 cm/min has to be maintained during the test, what should be the head differ- ence across the specimen? Also, determine the discharge velocity under the test conditions.
Problem 3: A constant-head permeability test was performed on the soil sample shown below. The hydraulic...
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...
Problem 3 In a constant head permeability test in the laboratory, the following are given: L...
Problem 3 In a constant head permeability test in the laboratory, the following are given: L = 250 mm, A - 105 cm². If the value of k = 0.014 cm/sec and a rate of flow of 120 cm/min has to be maintained through the soil, what should be the head difference h across the specimen?
Please write correct option after completion of your answer Length of soil sample for constant head...
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...
Please help with this geotechnical engineering problem! I promise I'll rate your answer! (If needed, assume...
Please help with this geotechnical engineering problem! I
promise I'll rate your answer!
(If needed, assume Gs = 2.7)
A falling-head permeability test was carried out on a clay of diameter 100 mm and length 150 mm. In 1 hour the head in the standpipe of diameter 6 mm dropped from 700 mm to 540 mm. Calculate the hydraulic conductivity of this clay. Assume a temperature of 20°C.
In a laboratory, a falling-head permeability test was
conducted on a silty soil. For the falling-head apparatus, the
following data were obtained:
1. Length of Specimen = 15.80 cm.
2. Diameter of Specimen = 10.16 cm.
3. Cross-sectional area of burette = 1.83 cm2
4. Hydraulic head at beginning of test (h1) = 120.0
cm.
5. Hydraulic head at end of test (h2) = 110.0 cm.
6. Time required for water in the burette to drop from
h1 to h2...
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.
Problem 3. In a constant-head permeability test, the length of the specimen is 150 mm and the cross-sectional area is 3167 mm". If k = 0.062 cm/sec and a rate of flow of 160 cm/min has to be maintained during the test, what should be the head differ- ence across the specimen? Also, determine the discharge velocity under the test conditions.
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...
Problem 3 In a constant head permeability test in the laboratory, the following are given: L = 250 mm, A - 105 cm². If the value of k = 0.014 cm/sec and a rate of flow of 120 cm/min has to be maintained through the soil, what should be the head difference h across the specimen?
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...
Please help with this geotechnical engineering problem! I
promise I'll rate your answer!
(If needed, assume Gs = 2.7)
A falling-head permeability test was carried out on a clay of diameter 100 mm and length 150 mm. In 1 hour the head in the standpipe of diameter 6 mm dropped from 700 mm to 540 mm. Calculate the hydraulic conductivity of this clay. Assume a temperature of 20°C.
Most questions answered within 3 hours.
-
what is IoT? How is it being used today? How will it be used in
the...
asked 6 minutes ago -
Please answer the four questions below.
1. If you were going to test a method that...
asked 21 minutes ago -
Provide two or three examples of support he uses to reinforce
his arguments?
The Alienation of...
asked 28 minutes ago -
QUESTION 1
Why do we see terms with multiple names in the database
community?
Consistency is...
asked 24 minutes ago -
In a titration experiment, 11.5 mL of 0.400 M H2SO4 neutralized
48.0 mL of NaOH. What...
asked 28 minutes ago -
A shot-putter throws the shot with a horizontal velocity of 10
m/s and a
vertical velocity...
asked 44 minutes ago -
Mildred sells industrial-sized refrigeration units. Her
prospective buyer's face looks tense, and his forehead is wrinkled....
asked 45 minutes ago -
Clark Heter is an industrial engineer at Lyons Products. He
would like to determine whether there...
asked 1 hour ago -
3. Use a text editor to create a comma-delimited file of user
IDs and passwords. Revise...
asked 1 hour ago -
Jensen and Associates has a projected balance
sheet that includes the following accounts. What is the...
asked 1 hour ago -
implement a doubly-linked list in C. Each node in the linked list should contain a string,...
asked 1 hour ago -
What are some best practices and things to avoid when developing
a PowerPoint presentation or file
asked 1 hour ago