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CCCC Nanjing Weisan Road River-Crossing Project

Hyperbaric Tunneling

CCCC Nanjing Weisan Road River-Crossing Project

Mixed Gas Saturation Intervention at 6.5bar Overpressure

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The new Mixed-Gas-Saturation Generation is designed and manufactured by IHC Hytech from the Netherlands in cooperation with Nordseetaucher GmbH.

Those mobile Systems are for overpressure up to 20bar.

The containerised System can be installed on the TBM in the shaft and/or on the surface.


The diver/technicians will be transported from the Living Chamber into the tunnel and on the TBM with a special designed Shuttle and Lifting System.



From September 2013 till January 2015 the designed new Mixed-Gas-Saturation System was busy in Nanjing-China on the TBM of CCCC-China Communication Construction Company.



Team Interventions on S+N-Line in Total 36 = 108 Man Interventions
Working Days 649
Time under Pressure 52.552:20
Work Time under Pressure 8.606:00

CCCC Nanjing Weisan Road River-Crossing Project

Mixed Gas Saturation Intervention at 6.5bar Overpressure

Download article as PDF (500kb)

荷兰IHC-HYTECH公司在北海公司的支持下,设计制造了新一代混合气体饱和作业设备。此套设备为移动式设 备,耐压高达20bar,且所有设备全部集成在集装箱内, 方便在隧道内、盾构机或地面上的安装。


通过特制的穿梭仓设备和起吊设备,可将潜水员和技术人员从 地面生活仓运送至盾构机上。



自从 2013 年9 月开始,此套混合气体饱和作业设备已经用于中国交通建设集团的南京工地。



Team Interventions on S+N-Line in Total 36 = 108 Man Interventions
Working Days 649
Time under Pressure 52.552:20
Work Time under Pressure 8.606:00