Q56
In the construction of Itaipu Dam, what was the significant rock engineering challenge?
A.
Glacial till
B.
Tunneling in metamorphic rocks
C.
High uplift pressures in jointed basalt
AnswerD.
Fault creep
Answer: Option C
Solution
Answer: Option C
Solution:
The dam site had jointed basalt flows which required control of uplift pressures and seepage using curtain grouting and drainage galleries.