A DrahmedsoilMechanicsnoteschapters pdfDownloads/DrahmedsoilMechanicsnoteschapter5.pdf5.16 Refer to Figure in which upwardseepage is taking place through agranular soil contained in a tank.Given: H1 = 1.5 m; H2 = 2.5 m; h =1.5 m; area of the tank = 0.62 m?:void ratio of the soil, e = 0.49: G. =2.66; and hydraulic conductivity ofthe sand (k) = 0.21 cm/sec.a. What is the rate of upwardValve fopen)seepage?b. Will boiling occur when h =1.5m? Explain.c. What would be the critical value of h to cause boiling?InflowAns.: (a) q = 781.2 cm'isec, (b) No. (c) h = 2.77m5.17 Refer to Figure of Problem 5.16. If H, = 0.91 m, H2 = 1.37 m. h =0.46 m,Ysat = 18.67 kN/m, area of the tank = 0.58 m2, and hydraulic conductivityof the sand (k) = 0.16 cm/sec,a. What is the rate of upward seepage of water (m/min)?b. If the point C is located at the middle of the soil layer, then what is theeffective stress at C?Ans.: (a) i= 0.336, (b) q = 0.0187 m/min5.18 A cut is made in a stiff, saturated clay that is underlain by a layer of sand.What should be theY= 19 kN/height of the water4/147. A DrahmedsoilMechanicsnoteschapter5.pdfURI/Downloads/DrahmedsoilMechanicsnoteschapter5.pdfA V5.25 The section through a long cofferdam is shown in Figure, the coefficientof permeability of thesoil being 4*107 m/s.9.00 m3.00 mDraw the flow net anddeterminethe2.50maserquantity of seepageenteringcofferdam.5.00 mthe2.00 m2.00 mAns.: Nr = 10, Na = 11, q =5.00 m4*10* m'/sec/m5.26 The section through sheet pile is2.00mshown in Figure, the coefficient ofpermeability of the soil is 2.0 x 10-6 m/s. Draw the flow net anddetermine the quantity of seepage.3.00 m3.00 m19

Answered: Image /qna-images/answer/07d89596-56c2-46dd-a4ff-86cbedcfe1d4.jpg

5.16 Refer to Figure in which upward seepage is taking place through a granular soil contained in a tank. Given: H1 = 1.5 m; H2 = 2.5 m; h = 1.5 m; area of the tank = 0.62 m?; void ratio of the soil, e = 0.49; G. = 2.66; and hydraulic conductivity of the sand (k) = 0.21 cm/sec. a. What is the rate of upward ((歲)可 %3D Valve fopen seepage? b. Will boiling occur when h =1.5 m? Explain. c. What would be the critical value of h to cause boiling? Influw Ans.: (a) g= 781.2 cm'isec, (b) No. (c) h= 2.77m 5.17 Refer to Figure of Problem

5.16 Refer to Figure in which upward seepage is taking place through a granular soil contained in a tank. Given: H1 = 1.5 m; H2 = 2.5 m; h = 1.5 m; area of the tank = 0.62 m?; void ratio of the soil, e = 0.49; G. = 2.66; and hydraulic conductivity of the sand (k) = 0.21 cm/sec. a. What is the rate of upward ((歲)可 %3D Valve fopen seepage? b. Will boiling occur when h =1.5 m? Explain. c. What would be the critical value of h to cause boiling? Influw Ans.: (a) g= 781.2 cm'isec, (b) No. (c) h= 2.77m 5.17 Refer to Figure of Problem

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: Based on the following figure, find the flow rate in m / sec/ m through the permeable soil layer. H…

Q: For a falling-head permeability test, the following values are given: · Length of specimen…

Q: For a falling head permeability test, these values are given: Length of the soil specimen = 200 mm…

A: Length of the soil specimen = 200 mmArea of the soil specimen = 1000 mm2Area of the standpipe = 40…

Q: For a falling head permeability test, the following are given. Length of specimen is 380 mm, are of…

Q: Soll layers are shown as the right figure. Given: H2m, k 10 cmsec H:- 3m, k- 32 x 10 cmsec Hy=4m,…

Q: For a sandy soil with G= 2.68, calculate the critical hydraulic gradient that will cause boiling or…

A: Given: Gs = 2.68, Sandy Soil Calculate: Critical hydraulic gradient=?

Q: 2.11 A sand has the following: Do = 0.2 mm, D = 0.4 mm, and void ratio e = 0.6. a. Determine the…

Q: The hydraulic conductivity depends predominantly on void ratio unit weight of the fluid organic…

A: 1. Hydraulic conductivity majorily depends upon the type of soil found in any region. It is affected…

Q: Please explain part 1 (ii) of the question given. 1) i) A 6 inch diameter well that fully…

A: The given data is: Diameter of well (dw) = 6 inch = 0.5 ft Thickness of aquifer (b) = 40 ft…

Q: EXAMPLE 9.4 Refer to the flow net shown in Figure 9.11 (which is the same one as in Figure 8.8).…

Q: Problem 5 A layered soil is shown in Figure P4.26. Estimate the equivalent permeability (cm/sec) for…

A: 4 layers of soil having different permeability is given z1 = z2 = z3 = z4 = 3 ftK1cm/s k2 = 2 ×…

Q: Two soil layers are shown in the figure. The soils have the same cross section area of 0.2 m2; and…

Q: Concrete dam H₂ H₂ Sandy layer Impervious rock L Figure 7.30 Given: upstream water level, H₂ = 16 m;…

Q: h=1.2 m H1=1 =0.8 Soil H2=2 m valve open In flow

Q: Consider the stratified soil sample shown below with k₁ = 0.01 cm/sec, k₂ = 0.02 cm/sec, H₁ = 10 cm,…

Q: For a constant head laboratory test on a fine sand, the following are the given values: Length of…

Q: 4. For a normally consolidated clay, the following values are given. k (cm/sec) 0.45 x 106 e 0.78…

Q: Q-2: Find the rate of flow in m³/sec/m (at right angles to the cross section shown in the following…

Q: 1. (30 pts) The soil profile shown below consists of 10 meters of sandy silt overlying gravel. The…

A: Step 1:Step 2: Step 3: Step 4:

Q: For a constant head laboratory permeability test on fine sand, the following values are given:…

Concept explainers

Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.

Question

100%

A DrahmedsoilMechanicsnoteschapters pdf
Downloads/DrahmedsoilMechanicsnoteschapter5.pdf
5.16 Refer to Figure in which upward
seepage is taking place through a
granular soil contained in a tank.
Given: H1 = 1.5 m; H2 = 2.5 m; h =
1.5 m; area of the tank = 0.62 m?:
void ratio of the soil, e = 0.49: G. =
2.66; and hydraulic conductivity of
the sand (k) = 0.21 cm/sec.
a. What is the rate of upward
Valve fopen)
seepage?
b. Will boiling occur when h =1.5
m? Explain.
c. What would be the critical value of h to cause boiling?
Inflow
Ans.: (a) q = 781.2 cm'isec, (b) No. (c) h = 2.77m
5.17 Refer to Figure of Problem 5.16. If H, = 0.91 m, H2 = 1.37 m. h =0.46 m,
Ysat = 18.67 kN/m, area of the tank = 0.58 m2, and hydraulic conductivity
of the sand (k) = 0.16 cm/sec,
a. What is the rate of upward seepage of water (m/min)?
b. If the point C is located at the middle of the soil layer, then what is the
effective stress at C?
Ans.: (a) i= 0.336, (b) q = 0.0187 m/min
5.18 A cut is made in a stiff, saturated clay that is underlain by a layer of sand.
What should be the
Y= 19 kN/
height of the water
4/14
7.

A DrahmedsoilMechanicsnoteschapter5.pdf
URI/Downloads/DrahmedsoilMechanicsnoteschapter5.pdf
A V
5.25 The section through a long cofferdam is shown in Figure, the coefficient
of permeability of the
soil being 4*107 m/s.
9.00 m
3.00 m
Draw the flow net and
determine
the
2.50m
aser
quantity of seepage
entering
cofferdam.
5.00 m
the
2.00 m
2.00 m
Ans.: Nr = 10, Na = 11, q =
5.00 m
4*10* m'/sec/m
5.26 The section through sheet pile is
2.00m
shown in Figure, the coefficient of
permeability of the soil is 2.0 x 10-
6 m/s. Draw the flow net and
determine the quantity of seepage.
3.00 m
3.00 m
19

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

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

Water flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.39 m². d1=d2=d3=0.52 m. Head difference is 0.93 m. Inflow Outflow Soil A Soil B Soil C d2 d3 Coefficient of Permeability for Each Soil: Soil A Kax 2.92 x 10-2 cm/s Soil A Kaz 1.36 x 10-3 cm/s Soil B Kbx 1.67 x 10.2 cm/s Soil B Kbz 2.92 x 10-3 cm/s Soil CKcx 3.28 x 102 cm/s Soil C Kcz 3.49 x 10-3 cm/s Compute the coefficient of permeability of the sand filler in cm/s. Use 4 decimal places
Consider two horizonal soil layers, each is isotropic, the upper layer 1 is sitting directly on the top of bottom layer 2. Layer 1 has a thickness of 2 m and a hydraulic conductivity of 0.26 m/day and layer 2 has a thickness of 4 m and a hydraulic conductivity of 0.95 m/day. In this case, calculate the equivalent horizontal hydraulic conductivity in m/day.
please answer part a
Answer in three decimal places please
2. Estimate the hydraulic conductivity (in cm/sec) of a poorly graded sand with the following characteristics: d100 = 0.425mm, d50= 0.3mm, d30 = 0.25mm, d10= 0.2mm, and do = 0.1mm. Show your work and circle your answer.
Determine the increase of pore water pressure at M due to the infinite strip loading shown in Figure Q3. Assume y= 0.5 and A-0.6. Im Clay 4m 2m 9-100kN/m² 4m Figure Q3 M G.W.T.
Question 1: * Two observation wells have been constructed in the formation shown. The flow rate is 0.01 cu. m/hr per unit width of the formation. o Compute the hydraulic gradient o Compute the equivalent hydraulic conductivity o Compute the value of k2. * Note: Since the soil is layered differently compared to the given figure above. Check FAQ's. 5m 2.5m 20m K2=? Kj=15 m/day K3=10 m/day 300m 600m 400m -1300m-
Calculate the effective hydraulic conductivity for flow parallel and perpendicular to layering. Please show and explain the difference in values.
Hydraulic barrier,.
A falling head hydraulic conductivity test is performed on a sample of soil. The stand pipe having a diameter of 0.20cm is observed and it takes 60 seconds for the water to drop by 50 cm from an initial hydraulic head of 90cm. The sample has a length of 20cm, and a diameter of 4cm. a.Find the coefficient of permeability (cm/sec) b.Solve for the hydraulic gradient c. Compute the rate of flow of water in the soil. (cm' /sec.) 0.20 cm 6 s TAND PIPE 50cm Acm 不 20am -: SOIL
a. For Figure 2 below, calculate the effective hydraulic conductivity for flow parallel and perpendicular to layering. Show your work. Explain the difference in values. Figure 2 sand layer; K = 1 m/d; thickness = 5 d 10.5 m clay layer; K = 0.000001 m/d; thickness = 0.5 m sand laver: K = 1 m/d; thickness = 5 m b. Figure 3 below shows the effects of groundwater refraction, assuming that groundwater flow in the top layer is almost horizontal i.e., a = 89.8°, what is B and what can you say about the flow in the clay layer? a a K, b B K Figure 3.