Subterranean projects in Saudi Arabia, from the Riyadh Metro expansion to Neom’s utility corridors, face unique geological demands. High soil salinity and fluctuating groundwater levels in coastal regions like Jeddah require advanced Tunnel Injection solutions. EG Core provides high-pressure resin applications designed to reinforce the rock mass and seal the tunnel lining against aggressive groundwater ingress.
For Saudi infrastructure, Curtain Injection is a critical preventive and corrective measure. We drill through the segmental or cast-in-place lining to inject specialized Acrylic Gels or Polyurethane resins into the soil-lining interface. This creates a secondary impermeable barrier that shields the concrete from hydrostatic pressure and salt-water corrosion, filling voids caused by shifting sands or erosion.
To combat heavy hydrostatic pressure in deep foundations and subterranean shafts, we utilize hydrophilic polyurethanes. These materials expand up to 20 times their volume upon contact with water, creating an immediate mechanical seal. This technology is vital for protecting the steel reinforcement within the tunnel lining from the aggressive chemical profile of Saudi groundwater, ensuring structural longevity for decades.
