Areas of Expertise
Four decades of specialised knowledge across the full spectrum of tunnel engineering and underground infrastructure in India and internationally.
Tunnel Design & Proof Checking
Independent proof check review of tunnel designs for rail, road, and hydropower projects. Evaluation of DPRs and feasibility reports to ensure technical soundness before construction begins.
Himalayan Tunnelling
Specialised knowledge of the Himalayan geological system, Shivalik, Sub-Himalayan, Lesser Himalayan, and Greater Himalayan zones, and the unique engineering challenges each presents.
NATM / NMT / TBM Methods
Deep experience in applying New Austrian Tunnelling Method, Norwegian Method of Tunnelling, and Tunnel Boring Machine operations in Indian geological conditions.
Rock Mechanics
Foundational expertise in rock mass classification using RMR, Q-system, and GSI frameworks. Author of BIS codes on RMR, GSI, and RQD, the national standards used across India.
Underground Space Planning
Advocacy and design advisory for utilising underground space for civic infrastructure, storage, and urban development, a largely underutilised resource in Indian cities.
Tunnel Instrumentation
Design and evaluation of comprehensive instrumentation schemes for monitoring rock mass behaviour, support pressure, and tunnel deformation in real-time.
Tunnel Support Design
Optimised support design using empirical, analytical, and numerical methods. Specialised in supports for squeezing ground, swelling ground, and seismically active zones.
Slope Stabilisation
Design of rock cut slopes for tunnel portals and hill roads, with remediation of slope instabilities using bolt, shotcrete, and drainage solutions.
Underground Caverns
Design advisory for large-span underground caverns including hydroelectric powerhouses, oil storage caverns, and defence facilities.
Difficult Ground Troubleshooting
On-call expert for tunnels encountering unexpected ground conditions, squeezing, collapse, water inrush, or structural failure. Field-proven solutions from decades of complex projects.