Chief Land Surveyor Interview Questions and Answers

The diameter of a 2-lane NATM tunnel varies depending on the specific project requirements and regulations.

• The diameter of a 2-lane NATM tunnel typically ranges from 10 to 15 meters.

• The specific diameter will be determined by factors such as traffic volume, ventilation requirements, and geological conditions.

• For example, a tunnel in a densely populated urban area may have a smaller diameter to minimize surface disruption, while a tunnel in a mountainous region may have a larg...read more