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Geotechnical and Geo-Environmental
Cost effective Geo-environmental and geotechnical solutions for both routine and complex projects.
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Tunnels and Underground Structures
We have extensive experience in the design and construction supervision of underground projects.
About the Service
PNJ’s has extensive experience in the design and construction supervision of the tunneling and underground projects.
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What’s Included
- Tunnel Boring Machine (TBM) Confinement Study
- Recommendation on the TBM dismantling
- New Austrian Tunneling Method (NATM) for soft ground and hard rock
- Support requirements for underground structures in soft/hard rock and mixed ground.
- Recommendations for the Tunnel Construction including Shields, TBMs, Jack and Bore, Horizontal Directional Drilling, drill and blast.
- Recommendations for the Shaft Construction - Liner Plate, Soldier Pile and Lagging, Secant Piles, Rib and Board, Ground Freezing, Caissons
- Construction Inspection
- Construction Claim Preparation or Review
- Changed Ground Conditions Assessment
- Ground improvement
- Geotechnical instrumentation and monitoring
- Contract documents preparation
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