Rail Mounted Chamber – TunnelSAFE Rail Design
Rail mounted chambers can be mounted or fixed to a tunnelling project‘s existing rescue train; providing a portable safe haven for site personnel during routine inspections and maintenance works. As a long term safety option for the entire life of the tunnel, these chambers are robust and fully serviceable.
TunnelSAFE Rail Design Refuge Chambers can also be fitted with remote monitoring systems, or the client’s own remote control system.
Model | Occupancy | Compliance | Height (m) | Width (m) | Length (m) | Weight (kg) |
TS-RD1-10-ELV-24-I | 10-Person | ITA | 2.00 | 1.60 | 5.60 | 4800 |
TS-RD3-10-ELV-24-E | 10-Person | BS EN | 2.00 | 1.60 | 7.00 | 5950 |
TS-RD2-12-ELV-24-I | 12-Person | ITA | 2.00 | 1.60 | 6.30 | 5400 |
TS-RD4-12-ELV-24-E | 12-Person | BS EN | 2.00 | 1.60 | 7.95 | 6200 |
TS-RD3-14-ELV-24-I | 14-Person | ITA | 2.00 | 1.60 | 7.00 | 5950 |
TS-RD5-14-ELV-24-E | 14-Person | BS EN | 2.00 | 1.60 | 9.00 | 6450 |
TS-RD4-16-ELV-24-I | 16-Person | ITA | 2.00 | 1.60 | 7.95 | 6200 |
TS-RD6-16-ELV-24-E | 16-Person | BS EN | 2.00 | 1.60 | 9.80 | 6700 |
TS-RD5-20-ELV-24-I | 20-Person | ITA | 2.00 | 1.60 | 9.00 | 6450 |
TS-RD8-20-ELV-24-E | 20-Person | BS EN | 2.00 | 1.60 | 11.70 | 7200 |
TS-RD7-24-ELV-24-I | 24-Person | ITA | 2.00 | 1.60 | 10.50 | 6920 |
- Designed to be mounted on a Rail Trolley
- Self-regenerative ELV CO and CO2 scrubbing
- Medical O2 regulator and backup
- Positive pressure maintenance system with visual reference
- Aura-FX Digital Gas Monitoring
- Air conditioning and dehumidifying
- 5mm steel plate construction with reflective signage
- Full UPS 24hr battery backup system
- Ergonomically designed seating
- External strobe lighting; internal fluorescent lighting
- GuardIAN Refuge Chamber Monitoring
- Fully Flushing, High Pressure Airlock
- Special Dimensions and Configurations
- Duration Upgrade
- Blast Rating Upgrade
- Blast Shield Protection
- Misting System for External Temperature Control
- Automated Oxygen Delivery System
- Step Down Transformer
- First Aid Kit
- Carbon Monoxide Safety-Off-System
Designing Refuge Chambers for Tunnels Under Construction
Monitoring Gas Levels in Tunnelling
Safety Critical for Underwater Tunnel Construction
Combining Transportation and Safety – Riachuelo River Tunnel
Small TBM Strengthens Safety with Custom Refuge Chamber
Rail Mounted Chamber – TunnelSAFE Rail Design
Rail Mounted Chamber – Front View
The ‘face’ of the TunnelSAFE Rail Design is designed primarily for easy identification and quick access during an emergency. The strobe lighting, warning siren and reflective signage alert passers-by to the chamber’s location, whilst the rotating door handles provide simple, straight forward access to the safety of the interior.
Rail Mounted Chamber – Interior View
Inside a TunnelSAFE Rail Design Refuge Chamber, a number of vital life-support systems combine to create a safe, ongoing environment for occupants. Systems include; primary and secondary air (oxygen) supplies, air conditioning systems, positive pressure systems, electrical systems, gas detection and a chemical scrubbing system.
The TunnelSAFE Rail Design uses active chemicals and MineARC’s ELV (extra-low-voltage) Scrubbing System to ‘scrub’ the build up of harmful CO2 (carbon dioxide) and CO (carbon monoxide) from the air inside the refuge chamber.
Rail Mounted Chamber – Rear View
A secure cabinet at the rear of the TunnelSAFE Rail Design houses the refuge chamber’s UPS battery back up (Uninterruptible Power Supply). The UPS is a fail-safe system that can power the refuge chamber’s internal life support systems for a minimum of 36hrs, should mine power become cut-off.
Also at the rear of the chamber is the Compressed Air Management System (CAMS), which allows regulated compressed air into the refuge chamber when the pressure inside drops below 200Pa. This process optimises mine air usage and guarantees against over-pressurisation of the refuge chamber.
CAMS’ gas toxicity monitor automatically diverts compressed air if oxygen levels in the airline fall below a set level (18% oxygen in free air), signifying air contamination. Additionally, the incorporated flood protection valve automatically shuts down compressed air to avoid catastrophic and costly chamber damage in the event of water ingress.
Comparison Table
Name | Capacity * | ITA/BS EN Compliance ** | Aura-FX Gas monitoring | CAMS | Gantry | Mobile | Portable | 24hrs Battery Backup |
---|---|---|---|---|---|---|---|---|
8-20 | ||||||||
10-24 | ||||||||
10-24 | ||||||||
10-24 | ||||||||
12-24 | ||||||||
10-24 | ||||||||
12-24 |
- * Capacity Every refuge chamber is built with a certain rated occupancy in mind. The life support systems are designed to safely house this number of people for the designated duration.
- ** ITA/BS EN Compliance MineARC’s TunnelSAFE Refuge Chambers can be built to comply with British Standard (BS EN 16191:2014) Safety Requirements for Tunnelling Machinery and the ITA’s “Guidelines for the Provision of Refuge Chambers Under Construction.
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