Mountain Rail Tunnel Portal
Installed 180 high-capacity permanent prestressed rock anchors, up to 40 meters long, into fractured rock strata to secure a railway portal.
High-capacity prestressed and passive tieback anchoring systems engineered to counteract high lateral earth pressures, hydrostatic uplift forces, and slope instability in deep excavations and marine works.
Deep excavations, tall retaining structures, and sub-grade basements are exposed to continuous lateral earth pressures and hydrostatic uplift forces. Ground anchors transfer these tensile loads deep into stable rock or competent soil strata beyond the active failure zone.
GRIMTECH designs, installs, and tests high-capacity temporary and permanent ground anchoring systems—ensuring total structural restraint for diaphragm walls, sheet pile barriers, dam spillways, and unstable rock slopes.
| IS 10270 | Code of practice for design and testing of prestressed rock and soil anchors. |
| BS 8081 | British code of practice for ground anchorages. |
| Tendon Types | High-strength low-relaxation 7-wire steel strands (15.2 mm / 12.7 mm Ø) or high-grade threadbars. |
| Anchor Load Capacities | Single tendon/bar capacities engineered from 100 kN up to 3000+ kN lock-off loads. |
Installed 180 high-capacity permanent prestressed rock anchors, up to 40 meters long, into fractured rock strata to secure a railway portal.
Executed 300+ temporary tieback soil anchors to support a 18-meter deep diaphragm wall excavation in congested urban surroundings.
Have a project in mind? Let’s engineer the right foundation. Our team is ready to deliver safe, reliable and cost-effective geotechnical solutions.