Homework Answers
Add Answer to:
Problem 2 Calculate the equivalent hydraulic conductivity Kain units of m/s for the multilayered soil profile...
Problem 5- Equivalent hydraulic conductivity (10 pts) A layered soil is shown below: H1= 2m H2...
Problem 5- Equivalent hydraulic conductivity (10 pts) A layered soil is shown below: H1= 2m H2 =3.5 m H3 =4 m kv1 =10-3 cm/s, kh1= 4.5x10-4 kv2=3x10-4 cm/s, kH2= 2.5x10-5 kv3=5.2x10-4 cm/s, KH3= 7.5x 10-4 kileg) kveg) a) Estimate the ratio of equivalent hydraulic conductivity: b) Estimate the flow rate (cm/hr) based on equivalent hydraulic conductivity if a flow direction is horizontal.
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...
(a) Draw the flownet. (b) Determine the flow rate if the equivalent hydraulic conductivity is k- ...
(a) Draw the flownet. (b) Determine the flow rate if the equivalent hydraulic conductivity is k- 1.9 x 103 cm/s. (c) Determine the porewater pressure distributions on the upstream and downstream faces of the wall. (d) Would piping occur if e -0.55? SM using Geostudio's SEEP/W software and solve all four parts of problem 1. Comment on these results Open With Sand
(a) Draw the flownet. (b) Determine the flow rate if the equivalent hydraulic conductivity is k- 1.9 x...
A dam section is shown in the figure. The hydraulic conductivity of the permeable layer is...
A dam section is shown in the figure. The hydraulic conductivity of the permeable layer is 0.002 cm/s. c. Calculate the factor of safety against piping at Point B. Assume that the water flow is approximately in vertical y = 20 kN/m - 7 Reservoir 15 m Clay dam Impervious bedrock Select one: a. 9.96 C. 4.92 Od: 467
Q2. A borehole at a site reveals the soil profile shown in Figure 2. Plot the...
Q2. A borehole at a site reveals the soil profile shown in Figure 2. Plot the distribution of vertical total and effective stresses with depth. Assume pore air pressure is zero and the pore-water pressure due to capillarity is negative as shown in Figure 3 Elevation (m) Very fine wet sand with silt w=596, S = 40% Fine sand saturated by capillary action Fine sand, 12% 2.0 5.4 Soft blue clay, w= 28% 20.6 Figure 2 Soil Porewater pressure distribution
Problem 1 Ground Surface A soil profile is shown to the right. The groundwater table is...
Problem 1 Ground Surface A soil profile is shown to the right. The groundwater table is located 15 feet below ground. Calculate the total stress, pore water pressure and effective stress in the vertical and horizontal direction at points a, b, and c located Coarse Sand -120 lb/ft Ko 0.4 %at: 125 lb/ft3 a) 15, b) 40, and c) 58 feet below the ground surface. Stiff Clay = 110 lb/ft3 %at 115 lb/ft3 Ko= 1.3 58 Limestone Bedrock
The figure below shows the soil profile conditions below a 5-m deep pond. Water is seeping directly downward und...
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....
Question 2 The soil profile at a level site consists of a 3-m thick layer of...
Question 2 The soil profile at a level site consists of a 3-m thick layer of sandy clay, overlaying an 8-m thick layer of loose sand, overlaying stiff gravelly clays that extend to depths greater than 20 m. The water table is at a depth of 2 m and the ground water is initially hydrostatic. The total unit weight of the upper sandy clay, above or below the water table, is 18 kN/m3. The total unit weight of the loose...
Table 1: Aquifer properties for use in Problem 2 K (m/s) 2.75E-03 0.25 5.00E-03 0.35 1.00E-02...
Table 1: Aquifer properties for use in Problem 2 K (m/s) 2.75E-03 0.25 5.00E-03 0.35 1.00E-02 0.29 9.50E-05 7.50E-04 0.22 0.3 2. A heterogeneous sand and gravel aquifer has the hydraulic properties provided in Table 1, Assuming strictly horizontal flow, compute equivalent hydraulic conductivity [m/s] and porosity of the aquifer. 3. Using your average K and n values from (2) and a hydraulic gradient of 0.005, compute the average velocity [m/s] of this aquifer
Problem III. You are working at a construction site that has the given groundwater flow conditions....
Problem III. You are working at a construction site that has the given groundwater flow conditions. Assume that head loss cannot be neglected in either the silt or the clay layers. Determine at the interface of the silt and the clay layers: a. Total vertical stress b. Effective vertical stress C. TOTAL horizontal stress (K = 0.35) Very very permeable sand 2 ft Clay 0.5 ft Silt 2 ft S1011111 SISWA W W WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW wwwwwwwwwwwwwwwwwwwwwwwwwwwww WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW Datum Layer Hydraulic Conductivity...
Problem 5- Equivalent hydraulic conductivity (10 pts) A layered soil is shown below: H1= 2m H2 =3.5 m H3 =4 m kv1 =10-3 cm/s, kh1= 4.5x10-4 kv2=3x10-4 cm/s, kH2= 2.5x10-5 kv3=5.2x10-4 cm/s, KH3= 7.5x 10-4 kileg) kveg) a) Estimate the ratio of equivalent hydraulic conductivity: b) Estimate the flow rate (cm/hr) based on equivalent hydraulic conductivity if a flow direction is horizontal.
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...
(a) Draw the flownet. (b) Determine the flow rate if the equivalent hydraulic conductivity is k- 1.9 x 103 cm/s. (c) Determine the porewater pressure distributions on the upstream and downstream faces of the wall. (d) Would piping occur if e -0.55? SM using Geostudio's SEEP/W software and solve all four parts of problem 1. Comment on these results Open With Sand
(a) Draw the flownet. (b) Determine the flow rate if the equivalent hydraulic conductivity is k- 1.9 x...
A dam section is shown in the figure. The hydraulic conductivity of the permeable layer is 0.002 cm/s. c. Calculate the factor of safety against piping at Point B. Assume that the water flow is approximately in vertical y = 20 kN/m - 7 Reservoir 15 m Clay dam Impervious bedrock Select one: a. 9.96 C. 4.92 Od: 467
Q2. A borehole at a site reveals the soil profile shown in Figure 2. Plot the distribution of vertical total and effective stresses with depth. Assume pore air pressure is zero and the pore-water pressure due to capillarity is negative as shown in Figure 3 Elevation (m) Very fine wet sand with silt w=596, S = 40% Fine sand saturated by capillary action Fine sand, 12% 2.0 5.4 Soft blue clay, w= 28% 20.6 Figure 2 Soil Porewater pressure distribution
Problem 1 Ground Surface A soil profile is shown to the right. The groundwater table is located 15 feet below ground. Calculate the total stress, pore water pressure and effective stress in the vertical and horizontal direction at points a, b, and c located Coarse Sand -120 lb/ft Ko 0.4 %at: 125 lb/ft3 a) 15, b) 40, and c) 58 feet below the ground surface. Stiff Clay = 110 lb/ft3 %at 115 lb/ft3 Ko= 1.3 58 Limestone Bedrock
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....
Question 2 The soil profile at a level site consists of a 3-m thick layer of sandy clay, overlaying an 8-m thick layer of loose sand, overlaying stiff gravelly clays that extend to depths greater than 20 m. The water table is at a depth of 2 m and the ground water is initially hydrostatic. The total unit weight of the upper sandy clay, above or below the water table, is 18 kN/m3. The total unit weight of the loose...
Table 1: Aquifer properties for use in Problem 2 K (m/s) 2.75E-03 0.25 5.00E-03 0.35 1.00E-02 0.29 9.50E-05 7.50E-04 0.22 0.3 2. A heterogeneous sand and gravel aquifer has the hydraulic properties provided in Table 1, Assuming strictly horizontal flow, compute equivalent hydraulic conductivity [m/s] and porosity of the aquifer. 3. Using your average K and n values from (2) and a hydraulic gradient of 0.005, compute the average velocity [m/s] of this aquifer
Problem III. You are working at a construction site that has the given groundwater flow conditions. Assume that head loss cannot be neglected in either the silt or the clay layers. Determine at the interface of the silt and the clay layers: a. Total vertical stress b. Effective vertical stress C. TOTAL horizontal stress (K = 0.35) Very very permeable sand 2 ft Clay 0.5 ft Silt 2 ft S1011111 SISWA W W WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW wwwwwwwwwwwwwwwwwwwwwwwwwwwww WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW Datum Layer Hydraulic Conductivity...
Most questions answered within 3 hours.
-
Suppose that XX is a random variable with mean 16 and standard
deviation 5 . Also...
asked 14 seconds from now -
Calculate the number density of argon gas at a temperature of
24C and a pressure of...
asked 3 hours ago -
Alternative
Classification
How to Estimate
Probabilities from Data? ( For continuous Attributes)
And How to generate...
asked 3 hours ago -
An explosion breaks a 20.0-kg object into three parts. The
object is initially moving at a...
asked 4 hours ago -
Calculate the approximate number of residues of Rubisco, which
is involved in carbon fixation in plants,...
asked 5 hours ago -
Other decisions about scientific claims can have a much broader
impact.ENERGYarrow-10x10.png, environment, health, security - all...
asked 5 hours ago -
I need to write a research paper and work cited about this
topic: The United States...
asked 6 hours ago -
Hello! I was wondering if I could have some help?
If the vapor pressure of carvone...
asked 6 hours ago -
An economist wants to estimate the mean per capita income (in
thousands of dollars) for a...
asked 7 hours ago -
What would be the input/output characteristic of a circuit
obtained by putting two of your 2's-complementers...
asked 7 hours ago -
In Drosophila, the transition from the syncytial blastoderm
stage to the cellular blastoderm stage is a...
asked 7 hours ago -
Project management question:
Name 3 different types of resources (hint: humans are one
type)
asked 7 hours ago