MICRO TUNNELING

Microtunnelling is an advanced pipe jacking technique for installing non man-entry pipelines using a steerable and remotely controlled cutting head.

A hydraulically driven tunneling head is rotated by hydraulic motors and thrust against ground by means of surface jacks. Excavated material is transported from tunnel face into settlement tank as slurry, where it is re-circulated after solids are removed. Steering of cutting head is done by means of remotely controlled articulated joints and using laser guidance control system monitors the accuracy of the bore.

MICRO TUNNELING