Tunnel Profile Monitoring System

The system involves a series of linked rods, fixed to a tunnel wall to monitor deformation.

A datalogging system and related software is available to provide near real time displacement and generate a graphical representation of tunnel performance.

For monitoring:
Underground openings during construction for control and safety
Tunnel deformation due to nearby construction
Long-term deformation and performance of existing tunnels

Features:

	Low profile design with multiple arms to fit close to tunnel wall
	Does not interfere with tunnel traffic
	High system accuracy of up to 0.02mm of deformation
	Custom engineered to suit each individual application
	Immune to air density problems inherent in optical systems
	Direct measurement of displacement rather than calculation from tilt measurement