Geology: Civil Engineering Applications

Question 1

Why is geology important for tunnel construction?

Answer 1

• Determines optimal depth and soil stability.
• Helps avoid water intrusion and collapses.
• Requires geotechnical surveys for risk assessment.

Question 2

What are the main challenges of building tunnels?

Answer 2

1. Water pressure – High water table increases collapse risk.
2. Soil permeability – Clay layers are preferred over sand.
3. Mountain geology – Identifies weak layers and fault zones.

Question 3

What are zinktunnels?

Answer 3

Prefabricated tunnel segments sunk into position underwater.