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Geological Engineering · Q174

Case Studies and Applied Geological Engineering Projects

Engineering and GATE · Geological Engineering · question 174

Q174

What failure occurred in Vajont Dam due to a geological oversight?

A.
Overflow
B.
Uplift pressure
C.
Reservoir-triggered landslide
Answer
D.
Fault slip

Answer: Option C

Solution

Answer: Option C
Solution:
A massive reservoir-triggered landslide in 1963 displaced water, causing a deadly wave to overtop the dam. The slope instability was due to underestimation of clay layers and fractured rock.