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Soil Nail Walls for Slope Stabilisation and Cut Support

In-situ slope reinforcement using passive steel grouted nails and reinforced shotcrete facing for highway cuts, embankments, and deep excavations.

Overview

Reinforcing the Ground Where It Stands

Soil nailing is a top-down ground stabilization technique that reinforces existing soil masses by installing closely spaced fully grouted steel bars (soil nails) into the ground as excavation progresses.

The installed nails work in tension to create a composite, stable gravity-retaining mass out of the native soil, protected by a reinforced shotcrete facing. Soil nailing is ideal for steep cut slopes, road widenings, and space-constrained excavations.

Execution Sequence

Top-Down Execution Methodology

  • Stage 1: Excavation in Lifts
  • Stage 2: Drilling & Nail Installation
  • Stage 3: Pressure Grouting
  • Stage 4: Facing & Testing
Execution Capability

Precision Slope Engineering

GRIMTECH utilizes compact crawler-mounted drill rigs and high-output shotcrete pumps designed to maneuver along steep terrain and narrow highway cuts.

Drill performance Grout quality Shotcrete strength
  • High-torque rotary drilling capable of penetrating rock, gravel, and cohesive soils
  • Colloidal grout mixing to ensure void-free nail encapsulation
  • Wet-mix shotcrete application for minimal rebound and high early strength
  • Verification pull-out testing on sacrificial and production nails to confirm design bond capacity
Industry Focus

Where We Deploy Soil Nailing

  • Highways & Railway Cuts
  • Hill Slope & Embankment Repair
  • Underpinning & Retaining Walls
Technical Specifications

Technical Parameters

Typical Operating Specifications

  • Nail Bar Diameters: 25 mm to 40 mm high-yield continuously threaded steel bars
  • Nail Lengths: Up to 18+ meters
  • Borehole Diameters: 100 mm to 150 mm
  • Shotcrete Facing Thickness: 100 mm to 250 mm (Steel mesh or fiber reinforced)
  • Compliance Standards: IS 14448, FHWA Soil Nailing Manual
Let’s Build on Solid Ground

Have a project in mind? Let’s engineer the right foundation.

Our team is ready to deliver safe, reliable and cost-effective geotechnical solutions.

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