Q180
In the Boston Big Dig project, what was the primary method to support deep excavations?
A.
Rock bolts
B.
Slurry walls
AnswerC.
Pile rafts
D.
Gabion walls
Answer: Option B
Solution
Answer: Option B
Solution:
The Boston Big Dig used slurry walls extensively. These are deep trenches filled with bentonite slurry to stabilize soil before pouring reinforced concrete walls in-situ.