... area has had a signii cant impact on the layout of its underground railway network.As can be seen from the familiar London Undergroundmap (Fg.l),the south-east of the capitalis currentlyvery poorly served.This is primarilybecause of the d~cultiesof tunnelling through the Woolwich and Reading Beds...

... and the project site management team. Geolos The geological horizons at the site areThames Gravel overlyingthe Woolwich and Reading Beds over Thanet Sands on h p of chalk.These strata have two main aquifers.The upper, in the Thames Gravel,is affected by the Thames and the impoun& ed dock water level. The lower...

... ALIGNMENT INTERCHANGES TICKET HALLS SETTLEMENT ESCALATORS PLATFORMS TUNNELS TENDERS ARCHITECTS CONTRACTORS JOINT VENTURES GEOTECHNICS PILES CLAYS LONDON CLAY WOOLWICH BEDS READING BEDS SAND THANET SAND CHALK EARTH PRESSURE SOILS STRUTS SLABS DEMOLITION UNDERPINNING GROUND...

... station and seal pit Fig. 20 (above). Pump station and seal pit design development (deck plans) At the intake, in order to facilitate the lowering of the caisson to the chalk beds, a preformed annulus of bentonite was formed through the Woolwich and Readings beds and the Thanet Sand. This was done using...

... which are givenin Table 1. 4. Below the LondonClay liesthe Woolwich and ReadingBeds. which are identified by the following principal facies or rock types:' Puper 10579 (a) a fluviatile, partly deltaic facies (knownas the Reading Beds) ( b ) a lagoonal or estuarine facies (knowna s Woolwich Beds) (c...