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Emergency Refuge Chamber · SHELT’AIR Rang

SHELT’AIR Tunnel Emergency Refuge Chamber

SHELT’AIR Tunnel emergency refuge chambers from Sub’Roca protect teams working in tunnels, microtunnels, and underground structures under construction. In the event of fire, smoke, toxic gas release, or when evacuation becomes impossible, they provide a secure, pressurized, and self-contained space where operators can await rescue in the safest possible conditions.

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Technical Specifications

Designed to save lives

Developed by SUB’ROCA, a French manufacturer specializing in underground safety equipment, SHELT’AIR emergency refuge chambers are designed to meet the real-world constraints of underground worksites: limited space, mobility, configurable autonomy, reduced maintenance requirements, and full adaptability to project-specific needs.
Depending on the selected configuration, their design can meet international recommendations such as BS EN 16191 and ITA WG5.

  • Immediate Activation
    Rapid protection, even under the stress of an emergency.
  • Protection for up to 72 hours
    Configurable autonomy to protect teams until help arrives.
  • 100% Configurable
    Capacity, dimensions, and equipment adapted to each underground worksite.
  • Designed by Experts
    More than 20 years of experience in tunnel and underground safety.

Exclusive Tunnel Option

Gantry TBM Model

Our Gantry TBM model can be integrated directly onto the trailing gantry of a Tunnel Boring Machine (TBM).
Developed by our engineering department, this configuration brings the refuge closer to the tunneling teams while complying with the space, operational, and maintenance constraints specific to each TBM.
Each integration is subject to a dedicated engineering study to ensure perfect compatibility with your equipment.

  • Custom Engineering – Each refuge is designed according to the architecture, dimensions, and constraints of your TBM.
  • Optimized Integration – A layout designed to preserve accessibility, team circulation, and maintenance operations.
  • Compatible with All TBMs – Our solutions adapt to different TBM manufacturers and the specific requirements of each tunneling project.

Available Configurations

4 Sizes for All Your Teams

Every worksite is unique. That is why SHELT’AIR Tunnel emergency refuge chambers are fully configurable according to occupant capacity, required autonomy, ventilation type, transportation constraints, and available space.
Their robust structure makes them easy to relocate as the tunnel progresses while ensuring optimal protection for teams.

Narrow*

Length

4525mm to 12070mm

Width

1400mm

Height

2160mm
4-32 people

Medium*

Length

4525mm to 12070mm

Width

1600mm

Height

2160mm
4-32 people

Wide*

Visuel 3d refuge de secours wide

Length

4525mm to 12070mm

Width

2200mm

Height

2160mm
4-32 people

Sur-mesure

Length

Sur devis

Width

Sur devis

Height

Sur devis
UNLIMITED, according to your requirements

* Not applicable to the Gantry TBM model.

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Full Catalogue

All Equipment

Emergency refuge chambers, ventilation systems, and enzymatic sanitation solutions.
Discover the full Sub’Roca range for underground safety.

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