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Abstract: Abu Hamour (Musaimeer) Surface & Ground Water Drainage Tunnel – Phase I is a 9.5km long, 3.7m ID storm water tunnel. The excavation was carried out by two Earth Pressure Balance TBMs. Monitoring of the TBM excavation processes was provided in real-time by Herrenknecht made Operation and Guidance Systems. Results of borehole re-logging and shafts wall mapping have been presented to show how they...