Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 3 (Q.No. 35)
35.
A retaining wall 8 m high with a smooth vertical back retains a clay back fill with C' = 15 kN/m2, φ = 15° and γ = 18 kN/ m3. (Given sin 15° ≅ 0.25). The pressure at the top will, nearly, be equal to
Discussion:
6 comments Page 1 of 1.
DkMaurya said:
3 years ago
The answer will be 23 kn/m2.
(1)
Priyanka said:
5 years ago
Yes @Anu.
B is correct.
B is correct.
Anu said:
7 years ago
Ans should be B.
At top z=0 pa=-2crootka=-2*15*√0.6=23.2kn/sq.m.
At top z=0 pa=-2crootka=-2*15*√0.6=23.2kn/sq.m.
Naveen Kallan said:
8 years ago
At the top Z = 0.
So, p = -2C cotβ
β= 45 + 15/2,
p = -23 kN/m2.
So, p = -2C cotβ
β= 45 + 15/2,
p = -23 kN/m2.
Abdelhamid hidar al awady said:
8 years ago
Without any calculations there are tension at the top of RW so the value will be -ve then we should choose the lest value from above answer +11.5 true.
Mrinmoy Nath said:
8 years ago
Answer should be option C.
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