30Nov90 UK: REES HOUGH DIGS STORM WATER SEWER FOR CHUNNEL TERMINAL WITH JAPANESE CRUNCHING MOLE. (2 OF 2)
Construction of this stub tunnel has just begun, after horizontal freezing pipes were installed at the base of the shaft. The frozen earth is being excavated by hand, with lining segments following behind. Having solved the difficulties of excavating the shafts in bad ground, the contractor turned its attention to choosing an appropriate method for excavating the 2.56 m diameter tunnels.Rees Hough originally decided to offer the client, Southern Water, a pipe jacked tunnel which gives ...
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