Question:
Which geological feature increases the risk of foundation failure in dams?
Which geological feature increases the risk of foundation failure in dams?
Show Hint
Preferred dam foundation:
\[
\boxed{
\text{Massive, sound, unfractured rock}
}
\]
Avoid foundations with
\[
\boxed{
\text{Faults, joints and fractures.}
}
\]
Updated On: Jul 18, 2026
- Massive unfractured rock
- Fault lines and joints
- Homogenous rock layers
- Granite bedrock
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Faults and joints act as zones of weakness and provide pathways for seepage.
These discontinuities reduce the stability of dam foundations and increase the likelihood of foundation failure.
Hence,
\[
\boxed{\text{Fault lines and joints}}
\]
is the correct answer.
Therefore,
\[
\boxed{(B)}
\]
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