Compressed Air Work: Experience with the use of German TBG O_2 Decompression Tables

摘要

Compressed air work - initially used in caissons for bridge foundations or tunnels completely excavated under compressed air conditions -has also become standard in TBM tunnelling in the last decades. As air only decompression had caused several cases of decompression illness (DCI) in the past, work in compressed air and the decompression procedures had to be reassessed. As a result oxygen decompression was implemented into the decompression procedure.