Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN: 9781337705028
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 9, Problem 9.13P
It is proposed to place a 9 ft × 9 ft foundation at 6 ft depth in a sandy soil, where the average N60 is 25 and the unit weight is 115.0 lb/ft3. Using Meyerhof’s expressions presented in Section 9.6, estimate the allowable net pressure that would give 1.2 in. of settlement.
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A steel, possessing an eutectoid composition, undergoes a gradual cooling process from 800°C to
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Use the provided diagrams.
Temperature (°C)
1600
1538°C
1493°C
1400
L
1394°C
Y+L
1200-
1147°C
2.14
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4.30
1000
912°C
Y+ FeC
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a
600
400
0
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0.76
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a, Ferrite
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a + Fe3C
3
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4
5
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Chapter 9 Solutions
Principles of Foundation Engineering (MindTap Course List)
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