MindTap Engineering, 1 term (6 months) Printed Access Card for Das/Sivakugan’s Principles of Foundation Engineering, 9th
9th Edition
ISBN: 9781337705202
Author: Das, Braja M., SIVAKUGAN, Nagaratnam
Publisher: Cengage Learning
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Chapter 2, Problem 2.11P
To determine
Find the void ratio and unit weight of the soil.
Find the effective stress, total stress, and pore water pressure at the 5 m depth into the bottom of the lake.
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Q1/ The specific gravity of the soil is 1.41 percentage of water content by weight at
field capacity and wilting point are 15% and 7% respectively calculate the
equivalent moisture content as equivalent depth for 1.2m root zone :
1. at permanent wilting point
2. at field capacity
3. for ready available water
Question 6
The following figure shows peak-hour volumes for an intersection. Using Webster's method, determine
a suitable signal timing for the intersection using the four-phase system shown below. Use an amber
interval of 3 seconds and the saturation flow given in the table.
O
100
O
Phase
Lime Group
Saturation Flow
A
e
1615->
370
3700
B
1615
1615
3700
1615
3700
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MindTap Engineering, 1 term (6 months) Printed Access Card for Das/Sivakugan’s Principles of Foundation Engineering, 9th
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