Civil Engineering - GATE Exam Questions - Discussion
Discussion Forum : GATE Exam Questions - Section 1 (Q.No. 6)
6.
The wall shown in the below figure has failed. The cause of failure or the error made in the design of the failded wall is :
Discussion:
33 comments Page 1 of 4.
Pawan Pinto said:
6 years ago
Lack of backfill filter media can cause more pressure. Boulder backing is also an important criterion in case of mass concrete sections. Since this is a gravity wall. Due to the heavy earth behind and high backfill height, Overturning can be considered.
Nireesha said:
8 years ago
How can you tell that it is only due to overturning?
In the given figure there are weep wholes so there is a defect in a vertical stem so this may be due to unfit conditions of backfill.
In the given figure there are weep wholes so there is a defect in a vertical stem so this may be due to unfit conditions of backfill.
Venu said:
1 decade ago
The height of the retaining wall must equal to the surface of backfill soil otherwise maintain more thickness of wall can also reduces the failures.
Arun said:
8 years ago
Imbalance of the i.e weak in bearing capacity do cause overturning, backfill should be given precisely so as to be effective.
Antaryami said:
6 years ago
The CG of backfill will be just above the CG of retaining wall which tends to overturn it in an anticlockwise direction.
(6)
Murthy said:
1 decade ago
I think C is correct no proper drainage in the clay back fill, because need to provide filter median to drain water.
Irshad said:
1 decade ago
Obviously, wall would overturn if depth is more than base and the active and passive pressure will be unbalanced.
Danish khan said:
9 years ago
In rainy season the water comes through weep cracks due to this the whole pressure comes on the wall.
Ash said:
6 years ago
Weep holes are provided for drainage purpose, it is not a defect. Overturning is the correct answer.
(1)
Nawazish said:
1 decade ago
Failure of a retaining wall caused by the soil pressure overcoming the stability of the structure.
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