Cross-sections

Bored tunnel cross-section (rounded)

Bored tunnel cross-section (rounded) for rock surroundings

Cut-and-cover tunnel cross-section (box)

Cut-and-cover tunnel cross-section (rounded) I

Cut-and-cover tunnel cross-section (rounded) II

Cut-and-cover tunnel cross-section (rounded) III

Excavated tunnel cross-section (rounded) for rock surroundings

General tunnel cross-section

Excavation tunnel cross-section

Tunnel safety niche cross-section