Request a site inspection

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.
All services →Grouts and resins we make →

Railways

RailwaysSettled track, transition zones and wet tunnels on running lines.

Tunnels and metro

Tunnels and metroWater, cavities and weak ground in tunnels, shafts and metro works.

Hydropower and dams

Hydropower and damsSeepage, foundations, tunnels and slopes on hydro projects.

Mining

MiningWater in shafts and declines, and weak strata at faces and in roadways.

Water, ports and highways

Water, ports and highwaysWater tunnels and shafts, micro tunnels, pipelines, manholes and highway slopes.

Heritage and buildings

Heritage and buildingsSettlement, cracks and leaks in heritage structures and buildings in use.
All industries →Projects →

Services

Tunnel water ingress controlPre- and post-excavation groutingCavity and void fillingTunnel rehabilitationTrack and slab re-levellingPermeation and chemical groutingTAM groutingCurtain and consolidation groutingRock bolting and self-drilling anchorsSlope stabilisationCrack and joint injectionWaterproofing and polyurea liningsMine shaft and strata treatmentGround investigation and monitoring

Industries

RailwaysTunnels and metroHydropower and damsMiningWater, ports and highwaysHeritage and buildings

Sales

+91 99100 18144WhatsApp +91 99100 18144connect@geoconstech.com

Mining

In a working mine, water and weak strata cost production every shift. We seal water-bearing layers around shafts and declines, consolidate fractured strata at faces and in roadways, and stop sudden inflow, within the mine’s own safety rules.

The same resins and injection crews we use in tunnels, applied to the conditions of a mine.

In a mine, the treatment has to fit the shift, the ventilation and the mine’s safety plan, not the other way round.

We plan each job with the mine’s management, and measure inflow and roof behaviour before and after.

Industry challenges

Where mines need us

Water in shafts and declines

Inflow from water-bearing strata through the lining, and the pumping and corrosion that follow.

Sudden inflow

A gush of water during sinking or development that a slow-setting grout cannot hold.

Weak roof and face strata

Fractured strata in roadways and at faces that need consolidating before they can be supported.

Declines that keep failing

Access declines and roadways that need repeated support repairs.

Sealing water in a mine shaft and consolidating roadway strataSection of a vertical shaft through layered strata. Water from a water-bearing layer enters through the lining on the left; on the right, holes drilled from inside the shaft form a grout ring that cuts it off. A roadway at depth has its weak roof consolidated with resin and bolts. WATER-BEARING STRATACOAL 123456
  1. Note 1: Water-bearing strata crossed by the shaft.
  2. Note 2: Water entering through the lining.
  3. Note 3: Holes drilled out from inside the shaft into the water-bearing layer.
  4. Note 4: A grout ring around the shaft cuts the water off.
  5. Note 5: Weak roadway roof consolidated with resin and bolts.
  6. Note 6: Inflow measured before and after.
Geo Constech
Mine shaft and roadway · Section
Schematic · Not to scale

References

Mining: references on request

We use the same resins, plant and crews here as in our tunnel work. References are available on request.

A problem on your mine?

An engineer reviews it and replies with the next step.

CallWhatsAppSite inspection