A long trench is excavated in medium dense sand for the foundation of a multistorey building. The sides of the trench are supported with sheet pile walls fixed in place by struts and wales as shown in Fig. Ex. 20.17. The soil properties are: 7 = 18.5kN/m³, c = 0 and = 38° Determine: (a) pressure distribution on the walls with respect to depth. (b) Strut loads. The struts are placed horizontally at distances L = 4 m center to center. (c) The maximum bending moment for determining the pile wall section. (d) The maximum bending moments for determining the section of the wales.
A long trench is excavated in medium dense sand for the foundation of a multistorey building. The sides of the trench are supported with sheet pile walls fixed in place by struts and wales as shown in Fig. Ex. 20.17. The soil properties are: 7 = 18.5kN/m³, c = 0 and = 38° Determine: (a) pressure distribution on the walls with respect to depth. (b) Strut loads. The struts are placed horizontally at distances L = 4 m center to center. (c) The maximum bending moment for determining the pile wall section. (d) The maximum bending moments for determining the section of the wales.
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter13: Lateral Earth Pressure: At-rest, Rankine, And Coulomb
Section: Chapter Questions
Problem 13.1CTP
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![A long trench is excavated in medium dense sand for the foundation of a multistorey building. The sides of the trench are
supported with sheet pile walls fixed in place by struts and wales as shown in Fig. Ex. 20.17. The soil properties are:
Y = 18.5kN/m³, c = 0 and 6 = 38°
Determine: (a) pressure distribution on the walls with respect to depth.
(b) Strut loads. The struts are placed horizontally at distances L = 4 m center to center.
(c) The maximum bending moment for determining the pile wall section.
(d) The maximum bending moments for determining the section of the wales.
1 m
3m
H=3m +
D
3 m
Im
1
Him
A
38.33 KN
4 m
23 kN
Sand
-3 m-
1.67 m
(a) Section
m
A
B
Section DB,
C
1.33 m
30.67 KN
B₁
D
WAS WAS
RA A
R B₁
B
R82
Rc C
1
B₂
P. = 23 kN/m²
E
P₁ = 0.65 YHKA
(b) Pressure envelope
-3 m-
1.33 m
11
30.67 kN
(c) Shear force distribution
Figure Ex. 20.17
1.67 my
+-1m
23 kN
Section B, E
38.33 kN](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff1f0c905-f4f0-401f-9e11-7e89b9e303f0%2F67c0bc75-7e1f-4fde-8a7b-353d39b8d2fa%2F5xs6aue_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A long trench is excavated in medium dense sand for the foundation of a multistorey building. The sides of the trench are
supported with sheet pile walls fixed in place by struts and wales as shown in Fig. Ex. 20.17. The soil properties are:
Y = 18.5kN/m³, c = 0 and 6 = 38°
Determine: (a) pressure distribution on the walls with respect to depth.
(b) Strut loads. The struts are placed horizontally at distances L = 4 m center to center.
(c) The maximum bending moment for determining the pile wall section.
(d) The maximum bending moments for determining the section of the wales.
1 m
3m
H=3m +
D
3 m
Im
1
Him
A
38.33 KN
4 m
23 kN
Sand
-3 m-
1.67 m
(a) Section
m
A
B
Section DB,
C
1.33 m
30.67 KN
B₁
D
WAS WAS
RA A
R B₁
B
R82
Rc C
1
B₂
P. = 23 kN/m²
E
P₁ = 0.65 YHKA
(b) Pressure envelope
-3 m-
1.33 m
11
30.67 kN
(c) Shear force distribution
Figure Ex. 20.17
1.67 my
+-1m
23 kN
Section B, E
38.33 kN
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