Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 8, Problem 8.26CTP
To determine
Arrange the dry unit weight
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Water is flowing through a soil as shown in the figure. Pressure head at C (i.e. uc) is 9m. Determine the value of "x" and total head at D (i.e. hp
F
E
X
3 m
4 m
3 m
5m
Datum
B
CP
Soil
Assuming the groundwater table is at ground surface and the
soil bulk unit weight is 20kN/m3. At 2m depth below ground
level. The pore water pressure is approximately:
O a. 19.6 kPa
O b. 9.8 kPa
O c. 200 kPa
O d. 98 kPa
Water flowing through a soil column with the following characteristics:
K = 0.011 cm/s
dh/dx = 6.013
effective porosity n = 0.17
Determine the pore velocity (cm/day)
105
73
38
26
15
11
57
Chapter 8 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
Ch. 8 - Prob. 8.1PCh. 8 - Prob. 8.2PCh. 8 - Prob. 8.3PCh. 8 - Prob. 8.4PCh. 8 - Prob. 8.5PCh. 8 - Prob. 8.6PCh. 8 - Prob. 8.7PCh. 8 - Prob. 8.8PCh. 8 - Prob. 8.9PCh. 8 - The soil profile at a site consists of 10 m of...
Ch. 8 - Prob. 8.11PCh. 8 - Prob. 8.12PCh. 8 - Prob. 8.13PCh. 8 - Prob. 8.14PCh. 8 - A sand has Gs = 2.66. Calculate the hydraulic...Ch. 8 - Prob. 8.16PCh. 8 - A point load of 1000 kN is applied at the ground...Ch. 8 - Point loads of magnitude 9, 18, and 27 kN act at...Ch. 8 - Refer to Figure 8.13. The magnitude of the line...Ch. 8 - Refer to Figure 8.24. Determine the vertical...Ch. 8 - Consider a circularly loaded flexible area on the...Ch. 8 - A flexible circular footing of radius R carries a...Ch. 8 - The plan of a flexible rectangular loaded area is...Ch. 8 - Refer to Figure 8.26. The circular flexible area...Ch. 8 - Refer to Figure 8.27. The flexible area is...Ch. 8 - Prob. 8.26CTPCh. 8 - Prob. 8.27CTP
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- It is the bulk unit weight of a soil when it is 100 percent saturated. -saturated unit weight -submerged unit weight -bulk unit weight -effective unit weight chose 1arrow_forwardA permeameter tube (square cross-section) is filled with layers of soil of different permeability as shown below. Find the equivalent permeability for the assembly of soils Find the Total head, elevation head and pore water pressure at points (A, B, and C) with respect to the given datum. Given: k1=2k2=3k3=k4= 2x10³ cm/sec All units are in cm 55.0 F12.512.5 k ki 15.0HA k1 100 30.0 20.0 40.0- k2 Datum 5.0arrow_forwardWater flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.39 m². d1=d2=d3=0.58 m. Head difference is 0.84 m. Inflow h Outflow Soil A Soil B Soll C d2 d3- Coefficient of Permeability for Each Soil: Soil A Kax 2.15 x 10-² cm/s Soil A Kaz 1.51 x 10-3 cm/s Soil B Kbx 1.67 x 10.2 cm/s Soil B Kbz 2.86 x 10-³ cm/s Soil C Kcx|3,30 x 102 cm/s Soil C Kcz 3.31 x 10-3 cm/s Compute the interstitial velocity if the soil has a void ratio of 0.77 in meters per minute.. Use 4 decimal places.arrow_forward
- Find the value of dry unit weight if bulk unit weight is 19 KN/m3 and water content is 0.03arrow_forwarda) plot the variation of active pressure along the wall and b) determine the magnitude and location of the active force for a 5 ft segment of the wall.arrow_forwardWater flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.33 m². d1=d2=d3=0.52 m. Head difference is 0.92 m. Inflow Outflow Soil A Soil B Soil C -d1- -d2- Coefficient of Permeability for Each Soil: Soil A Kax 2.99 x 10-² cm/s Soil A Kaz 1.44 x 10-³ cm/s Soil B Kbx 1.63 x 10-2 cm/s Soil B Kbz 2.22 x 10-³ cm/s Soil C|Kcx|3.15 x 102 cm/s Soil C Kcz 3.17 x 10-3 cm/s Compute the flow of water through the soils in liters/sec. Use 4 decimal places.arrow_forward
- (**w*) Yw- (1+ wc\ |Yw• we For a given soil, show that: Ysat = n Soil Mechanicsarrow_forwardWater 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 placesarrow_forwardWater flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.33 m². d1-d2-d3=0.55 m. Head difference is 0.95 m. Inflow Outflow Soil B Soil C d2 Coefficient of Permeability for Each Soil: Soil A Kax 2.37 x 10-2 cm/s Soil A Kaz 1.64 x 10-³ cm/s Soil B Kbx 1.40 x 10-² cm/s Soil B Kbz 2.79 x 10-³ cm/s Soil C Kcx 3.42 × 102 cm/s Soil C Kcz 3.41 x 10³ cm/s Compute the flow of water through the soils in liters/sec. Use 4 decimal places. 3arrow_forward
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