wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A direct shear test was conducted on a cohesionless soil (C=0) specimen under a normal stress of 200KN/m2. The specimen failed at a shear stress of 100 KN/m2. The angle of internal friction of the soil (degree) is

A
26.6
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
29.5
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
30.0
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
32.6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 26.6
At failure, Normal stress,

σ=200kN/m2

Shear stress,

τ=100KN/m2

and c = 0

From Coulomb's equation,

τ=c+tanϕ

100=0+200tanϕ

ϕ=26.56

flag
Suggest Corrections
thumbs-up
3
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Direct Shear Test
SOIL MECHANICS
Watch in App
Join BYJU'S Learning Program
CrossIcon