What is the major risk when building tunnels in sedimentary rock with dip towards the face?
A. High strength
B. Easy excavation
C. Sliding and collapse along bedding planes
D. Increased ventilation
Answer: Option C
Solution (By Examveda Team)
Dipping sedimentary layers towards the excavation face can result in sliding along bedding planes.This geometry increases failure risks.This Question Belongs to Geological Engineering >> Engineering Geology For Construction
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