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 3, Problem 3.15P
To determine
Find the dry unit weight of the soil in
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1.7. The general Factor of Safety formula can be stated as:
a. SF =
allowable
Tyleld
allowable
b. SF =
"working
allowable
c. SF =
deffective
d. Both b and c
1.8. The maximum principal stress criterion is ideal for predicting failure in ductile materials.
a. True
b. False
1.9. Is the following system statically determinate or indeterminate?
a. Determinate
b. Indeterminate
-L·
1.10. Is the following system statically determinate or indeterminate?
a. Determinate
b. Indeterminate
8m
y=x²/2
2m 2m
4m
2m
Lm
y=x²/4
3m
4
5m
9m
A+
Determine if the channel is adequate for the applied tension load shown
in Figure. The channel is ASTM A36 steel and is connected with four 5/8-
in. diameter bolts. The tension member is subjected to service dead and
live loads of 28.5 kips and 25.5 kips, respectively, C8x11.5.
1½"
1½"
°
-C8x11.5
" gusset plate
PD = 28.5k
P₁ = 25.5k
End view
Chapter 3 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
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- Compute the net area for the tension member shown in Figure (1) The plate is 1x8 in. The holes are for 3/4 in diameter of bolts. 3 in 8 in 3 in е 2 in 1in PL1×8arrow_forwardQ1/A strip foundation is required to carry a total load of 1556 KN. The water table locate at 2.35m below the base of foundation. Determine the maximum depth of foundation that satisfy the bearing capacity equation?. (Use Terzaghi equation) Note: Ya = 16 kN/m³ Factor of safety = 3 Width of foundation = 2.65 m Length of foundation = 1m. 00 = 30 C = 27 Assume the allowable bearing capacity is equal to the actual bearing capacity (actual).arrow_forwardI need detailed help solving this exercise from homework of Foundation Engineering. I do not really understand how to do, please do it step by step, not that long but clear. Thank you!arrow_forward
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- Q // A residential city with a growing population of 50,000 people is experiencing challenges related to wastewater management. The city council has proposed building a combined wastewater treatment plant to ensure that domestic and industrial wastewater is treated effectively, meeting regulatory standards for discharge. The community has identified the need for an engineering solution that considers environmental, technical, and operational aspects. Scenario Details: Each person in the city consumes an average of 200 liters of water per day, and the organic load generated per person is 40 grams daily. The city also houses light industries that generate 0.25 million liters per day (MLD) of wastewater with a BOD, concentration of 600 mg/L. Environmental regulations mandate that treated wastewater discharged from the plant must not exceed a BOD5 of 20 mg/L. The treatment plant must be designed to operate efficiently under seasonal temperature variations, with temperatures reaching 35°C…arrow_forward23) An HSS 10 × 6 × 5/16 with F, = 46 ksi is used as a column. The length is 16 feet. Both ends are pinned, and there is support against weak axis buckling at a point 6 feet from the top. Determine a. the design strength for LRFD. b.the allowable stress for ASD 6' 10' 16' y-axis x-axis (good luck) Falls 12Aarrow_forward+ H.W ATF pland as illustrated in hig below. has. the following: a primary clarifier with a 16.8m diameter, 21m (SWD), and Single peripheral weir, an 26m diameter TE with a 2.1 deep stone filled bed; and a final settling Tank with a 15-2m diameter, 2.1m (SWD), and single peripheral weir, The normal operating recirculation ratio is NA 0.5 with return to the wet well from the bottom of the final during periods of low influent flow (fig② The daily wow flow is 5220 m³/d with an average BOD of 180-9/1 Calculate the loadings on all of the units, and the anticipated. effluent BOD 2 20°C and 16C * Assume @ efficiency of removal BOD load of 78% in 20 C Is of 68% 7416 68/74/6 Futurarrow_forward
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