Water

Tunnel water ingress controlLeaks and inflow stopped in tunnels, shafts and underground structures.

Crack and joint injectionLeaking cracks and joints sealed, and structural cracks bonded, in concrete and masonry.

Waterproofing and polyurea liningsPU membranes and polyurea linings for decks, tanks, tunnels and water structures.

Tunnels

Pre- and post-excavation groutingWater cut off and weak ground consolidated ahead of the face; voids closed behind it.

Cavity and void fillingVoids above tunnel crowns, behind linings and under slabs filled without loading the support.

Tunnel rehabilitationOld and operating tunnels: seepage stopped, ground consolidated and lining repaired, under traffic.

Ground

Track and slab re-levellingSettled ballastless track and slabs lifted back to level by PU injection, on live lines.

Permeation and chemical groutingWeak, loose or wet ground strengthened and sealed by resins and gels that fill it without moving it.

TAM groutingStaged grouting through sleeve pipes for shafts, foundations and deep excavations.

Curtain and consolidation groutingSeepage cut-offs and foundation consolidation for dams, barrages, shafts and structures.

Ground investigation and monitoringERT, GPR and MASW surveys, boreholes, lab tests and instruments, before and after treatment.

Rock, slopes and mines

Rock bolting and self-drilling anchorsRock bolts, self-drilling and prestressed anchors for tunnels, portals, slopes and caverns.

Slope stabilisationSoil nails, anchors, mesh, drainage and rockfall barriers for slopes above roads, railways and towns.

Mine shaft and strata treatmentWater sealed in shafts and declines; weak roof and face strata consolidated with resins and bolts.

Contact

For a site inspection, a quotation or a technical question, call or write to our sales team. For jobs and HR, see Careers.

Contact

Request a site inspection

Tell us where the ground or the water is giving trouble. An engineer reviews it and replies with the next step.