UTT - Mapei

UTT Mapei

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Deep Tunnel Sewerage System (DTSS T02 Bedok Tunnel) in Singapore


2003 - 2004


Ed. Zublin AG (Germany)

At 48km long, the Phase 1 network of the Deep Tunnel Sewerage System (DTSS) in Singapore passes through much of the island's highly variable geology. The IHI EPB TBM type excavated within soft grounds including soft compressible clays to loose running sands under high ground water pressures, to zones of very hard, highly abrasive, fresh granite and stretches of completely decomposed rock soils.
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