SAFETY CRITICAL FOR CHINESE UNDERSEA TUNNEL CONSTRUCTION
MineARC Systems’ China BDM, Davy Li, made a two-day trip to the coastal town of Lufeng in Guangdong Province, China, during August to commission a MineARC TunnelSAFE Refuge Chamber. The 30-person TunnelSAFE Gantry Design (GD) Refuge Chamber is situated on a 7.76m diameter Herrenknecht mixed shield TBM; providing a fixed safety solution at the rear of the cutting head infrastructure for the life of the project.
The 2.7km long U-shaped tunnel is being constructed for the China General Nuclear Power Group’s (CGN) Lufeng Power Plant. The tunnel is being built into the sea to divert sea water in order to cool nuclear reactors for the Power Plant.
The TunnelSAFE GD Refuge Chamber is constructed with 5mm steel with additional structural strengthening and bracing, and equipped with a 96-hour Uninterruptible Power Supply (UPS) system, bi-lingual operational stickers and manuals, and all critical life support systems to create a safe, ongoing environment for occupants. Systems include oxygen supplies, air conditioning and dehumidifying, positive pressure maintenance in the form of MineARC’s Positive Pressure Maintenance System (PPMS), gas detection and MineARC’s Extra-Low-Voltage (ELV) Chemical CO and CO2 Scrubbing System to ‘scrub’ the build-up of the harmful gases from the air inside the refuge chamber.
While on site, Davy provided operator training to the Health, Safety and Environment (HSE) team from the CGN and Sinohydro 14th Construction Bureau Co.. The team understand the importance of safety on site and prioritise the health and safety of workers. MineARC are pleased to contribute to the safety of this tunnel construction project.
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