Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Chapter 13, Problem 13.3P
To determine
Find the magnitude of the lateral earth forces
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COMPUTE THE VOLUME OF THE STOCKPILE SHOWN BELOW IN CUBIC YARDS USING THE AVERAGE AREA METHOD.
PROVIDE YOUR RESULTS ON THIS PAGE USING THE WINDOWS CLIPBOARD CUT AND PASTE TOOLS.
166
170
168
-172
CONTOUR AREA = 2,663 S.F.
CONTOUR AREA = 8,217 S.F
CONTOUR AREA =
16,284 S.F
CONTOUR AREA = 29,734 S.F.
AVERAGE AREA METHOD FOR VOLUME OF EXCAVATION AND STOCKPILE
CONTOUR ELEVATION
CONTOUR AREA
(FT)
(FT³)
ELEVATION DIFFERENCE
(DEPTH) BETWEEN
CONSECUTIVE CONTOURS
AVERAGE AREA
BETWEEM CONSECUTIVE
CUMMULATIVE
CONTOURS
VOLUME
(FT³)
CUMMULATIVE
VOLUME
VOLUME (CY)
(FT³)
(FT)
(FT)
Using the graphic below, computer the bearings for courses AF, AB, and BC and
azimuths for courses AF and BC.
128°28'58"
0.00
TRV-A
65°5'34"
F
86°34'27"
B
0.00
TRY-B
•
Azimuth AF:
Bearing AF:
Bearing AB:
Azimuth BC:
Bearing BC:
4G
46:58
Problem 1
You are in the process of designing a water supply system for the whole Iligan City, and
the design life of your system is to end in the year 2070. The population in the town has
been measured every 10 years since 1980 by the Philippine Statistics Authority, and the
reported populations are tabulated below. Estimate the population in the town using (a)
arithmetic growth projection, (b) geometric growth projection (exponential formula), (c)
declining growth projection (assuming a saturation concentration of 480,000 people), and
(d) logistic curve projection.
Population
Year
1980
167,358
1990
226,568
2000
285,061
2010
322,821
2020
342,618
1.a) Arithmetic growth
projection estimate
Your answer
* 5 points
1.b) Geometric growth
* 5 points
projection estimate
Your answer
1.c) Declining growth
projection estimate
Your answer
* 10 points
כ
95
Chapter 13 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
Ch. 13 - Prob. 13.1PCh. 13 - Prob. 13.2PCh. 13 - Prob. 13.3PCh. 13 - Prob. 13.4PCh. 13 - Prob. 13.5PCh. 13 - Prob. 13.6PCh. 13 - Prob. 13.7PCh. 13 - Prob. 13.8PCh. 13 - Prob. 13.9PCh. 13 - Prob. 13.10P
Ch. 13 - Prob. 13.11PCh. 13 - Prob. 13.12PCh. 13 - Prob. 13.13PCh. 13 - Prob. 13.14PCh. 13 - Prob. 13.15PCh. 13 - Prob. 13.16PCh. 13 - Prob. 13.17PCh. 13 - Prob. 13.18PCh. 13 - Prob. 13.19PCh. 13 - Prob. 13.20PCh. 13 - Prob. 13.21PCh. 13 - Prob. 13.22PCh. 13 - Prob. 13.23PCh. 13 - Prob. 13.24PCh. 13 - Prob. 13.25PCh. 13 - Prob. 13.26PCh. 13 - Prob. 13.27PCh. 13 - Prob. 13.1CTP
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