Sengkang/Punggol LRT

asia_2112_pick.jpgSingapore saw yet another production shaft tested using the O-cellTM method in December, 1999. The shaft was designed by Sembcorp Construction and constructed by BBR Geotechnic (S) in soils consisting primarily of dense sand and gravel. Engineers from LOADTEST Asia, carried out the test to a maximum applied load of 11.6 MN, utilizing three 230-mm O-cellsTM. The 1000-mm diameter production shaft is part of the new Senkang/Punggol Light Rail Transit (LRT) development currently under construction. The new LRT line is designed to serve as a feeder system to the MRT Northeast Line (NEL) expansion also currently under construction.

asia_2112overview_small_2.jpgThe surrounding Senkang/Punggol area has only recently been developed, with tens of thousands of Housing Development Board (HDB) flats newly constructed and more under development. The LRT will run along an elevated railway above a narrow medial strip dividing two lanes of traffic, which wind their way around the labyrinth of the HDB estates. It was no wonder that the Land Transport Authority (LTA) recommended the O-cellTM method be used for testing this 33-m long production shaft. Osterberg Cell technology afforded them the confidence of insuring the safety of the passersby and minimizing disruption of traffic flow without compromise

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