Question
What is tunneling? Describe the hazards and risks involved in tunneling.
Answer :
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Tunneling is the process of excavating underground passages for transportation, utilities, or mining. It involves the removal of soil or rock to create a tunnel, often reinforced with support structures to prevent collapse. Tunneling is widely used for railways, highways, water pipelines, and sewage systems.
Tunneling presents various hazards and risks due to the complex nature
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