Preparation of project-specific Hyperbaric Operations Manuals (HOMs), hyperbaric risk assessments, method statements, and emergency response plans for TBM hyperbaric intervention programmes.
A well-prepared HOM and risk assessment are the foundation of a safe hyperbaric tunnelling programme. KCC's documentation is written by practitioners with direct hyperbaric tunnelling experience — not generic templates — ensuring that procedures are practical, compliant, and fit for purpose on your specific project.
Compressed Air Interventions (≤3.0 bar)
Standard compressed air (CA) entry into TBM excavation chambers for cutterhead inspection, cutter tool change, and face maintenance. Conducted under IMCA D 045, HSE L96, and ADCI Consensus Standards at pressures up to 3.0 bar.
High-Pressure Compressed Air — Heliox / Trimix
High-pressure interventions above 3.0 bar using heliox or trimix breathing mixtures to eliminate nitrogen narcosis and reduce DCI risk. Conducted under IMCA D 045 (High Pressure Compressed Air Supplement) and EDTC HPCA decompression tables.
Saturation Hyperbaric Interventions
Saturation-based hyperbaric interventions for extended TBM maintenance campaigns, eliminating repeated decompressions and DCI risk. Workers live at intervention pressure via a pressurised transfer shuttle (PTS) for multi-day campaigns.
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Hyperbaric Tunnelling
Specialist hyperbaric intervention services for TBM and bored tunnel projects operating under compre
View all Hyperbaric Tunnelling servicesIMCA · ADCI · HSE · HKCP Compliant
All diving operations conducted to IMCA, ADCI, HSE & HKCP standards
Our team is ready to discuss your project requirements and provide a detailed proposal.