In-Tunnel Drilling & Probing
at a glance
WJ are the leading UK contractor for the installation of in-tunnel dewatering systems and investigative probing surveys.
Our fleet of articulated restricted access rigs are capable of installing both in-tunnel wells and probe holes axially, radially and at a range of inclinations, ahead of tunnels, cross passages and shaft construction.
Dependant upon ground conditions and project requirements our rigs are capable of drilling distances of up to 20m.