Herrenknecht has just been awarded a deal to supply two 13.2m slurry TBMs to the 9.7km-long SMART project in Kuala Lumpur, Malaysia. The USD 650M drive will be constructed in two drives from a single shaft near the city centre. The central 2.7km section will double up as a toll road during dry periods. The road deck will be two-thirds down the tunnel, with the bottom third still acting as an overflow. The Heathrow Express Project in London has leapt back into life with tendering underway and construction to begin in Autumn. The GBP45M of tunnelling on the Heathrow Express should complete in 1995. The most economical method for tunnelling would be a backhoe face shield, but there may be scope for a TBM if tunnel drives are unified into one contract. Much of the station work will be NATM.
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