Traffic And Highway Engineering
5th Edition
ISBN: 9781337631020
Author: Garber, Nicholas J.
Publisher: Cengage,
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Chapter 3, Problem 7P
To determine
Maximum overall gross weight of the WB-67 design vehicle
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What are some reasons for why a company would accelerate a construction project?
For the design of a shallow foundation, given the following:
Soil: ' = 20°
c' = 52 kN/m²
Unit weight, y = 15 kN/m³
Modulus of elasticity, E, = 1400 kN/m²
Poisson's ratio, μs = 0.35
Foundation: L=2m
B=1m
Df = 1 m
Calculate the ultimate bearing capacity. Use the equation:
1
-
qu = c' NcFcs Fcd Fcc +qNqFqsFqdFqc + ½√BN√Fãs F√dƑxc
2
For '=20°, Nc = 14.83, N₁ = 6.4, and N₁ = 5.39.
(Enter your answer to three significant figures.)
qu =
kN/m²
A 2.0 m wide strip foundation carries a wall load of 350 kN/m in a clayey soil where
y = 15 kN/m³, c' = 5.0 kN/m² and ' = 23°. The foundation depth is 1.5 m. For ' = 23°:
Nc = 18.05; N₁ = 8.66; Ny
=
=
= 8.20.
Determine the factor of safety using the equation below.
qu= c' NcFcs FcdFci+qNqFqsFq
1
F
+
gd.
'qi
2
·BN√·
FF
γί
Ysyd F
(Enter your answer to three significant figures.)
FS
=
Chapter 3 Solutions
Traffic And Highway Engineering
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- A 2.0 m wide strip foundation carries a wall load of 350 kN/m in a clayey soil where y = 17 kN/m³, c' = 5.0 kN/m² and 23°. The foundation depth is 1.5 m. For o' = 23°: Nc = 18.05; N = 8.66; N = 8.20. Determine the factor of safety using the equation below. 1 qu = c' NcFcs Fed Fci +qNqFqs FqdFqi + ½ BN F√s 1 2 (Enter your answer to three significant figures.) s Fyd Fi FS =arrow_forward1.2 m BX B 70 kN.m y = 16 kN/m³ c' = 0 6'-30° Water table Ysat 19 kN/m³ c' 0 &' = 30° A square foundation is shown in the figure above. Use FS = 6, and determine the size of the foundation. Use the Prakash and Saran theory (see equation and figures below). Suppose that F = 450 kN. Qu = BL BL[c′Nc(e)Fcs(e) + qNg(e)Fcs(e) + · 1 YBN(e) F 2 7(e) Fra(e)] (Enter your answer to two significant figures.) B: m Na(e) 60 40- 20- e/B=0 0.1 0.2 0.3 .0.4 0 0 10 20 30 40 Friction angle, ' (deg) Figure 1 Variation of Na(e) with o' Ny(e) 60 40 20 e/B=0 0.3 0.1 0.2 0.4 0 0 10 20 30 40 Friction angle, ' (deg) Figure 2 Variation of Nye) with o'arrow_forwardK/S 46. (O المهمات الجديدة 0 المنتهية 12 المغـ ۱۱:۰۹ search ليس لديك اي مهمات ☐ ○ ☑arrow_forward
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