...T.G. Newman; H.-Y. Wong Abstract Abstract A tunnel extension to the Thames Water Ring Main has recently been completed in SE London. Two new deep shafts were built at either end, using jacked caisson construction methods. One of the shafts was excavated through much of the London Basin Palaeogene...

...T. Newman Abstract Abstract The Thames Water Ring Main has been driven through the various Palaeogene deposits of London and the underlying Cretaceous Chalk. Much of the tunnel alignment was designed to keep within the London Clay Formation over the western half of the project, although discovery...

...Fig. 4. Borehole sampling and testing location plan. NLFR, North London Flood Relief; TWRM, Thames Water Ring Main. ...

... in London, including Crossrail (the Elizabeth Line), the Thames Tideway, the Thames Water Ring Main, the Channel Tunnel Rail Link (High Speed 1) and the Jubilee Line Extension have increased our understanding of the specific ground-related hazards associated with tunnelling and subsurface excavation...

...Fig. 14 Map showing the position of CTRL and associated Chalk-cored boreholes, the Thames Water Thames and Lee Tunnels, Thames Water Ring Main extension between Brixton and Honor Oak, and part of the Crossrail route. The position of the main faults and fault complexes is also shown. ...

... sequence for the Thames Water Ring Main extension . Quarterly Journal of Engineering Geology and Hydrogeology , 44 , 221 – 232 . Newman T.G. Yuan L.-F.V. O’Keeffe L.C. 2010 . Using tunnel boring data to augment the geological model . Proceedings of the Institute of Civil...

... et al. 2010 ) and the Thames Water Ring Main ( Newman 2009 ). The Harwich Formation is typical of relatively thin units of shallow-marine deposits with complex internal geometries. Such deposits are sparsely preserved and intensely reworked during shoreline retreat ( Jordan et al. 2016...

... and Hydrology , 44 , 419 – 444 , https://doi.org/10.1144/1470-9236/10-013 NERC 1920 . Geological sheet map, London nV. SW , 6″ or 1 : 10560. Newman , T. 2009 . The impact of adverse geological conditions on the design and construction of the Thames Water Ring Main . Quarterly Journal...

... services, leaking sewers, large ring mains (e.g. the Thames Water Ring Main) and underground railways ( Ampofo et al . 2004 b ; Thompson et al . 2006 ). Chalk groundwater temperatures may have been disturbed by artificial aquifer recharge trials and operational schemes in the Lea Valley–New River...

... of adverse geological conditions on the design and construction of the Thames Water Ring Main in Greater London, UK . Quarterly Journal of Engineering Geology and Hydrogeology , 42 , 5 – 20 , https://doi.org/10.1144/1470-9236/08-035 Newman , T . 2021 . Logging the Lambeth Group Upper Shelly...

... on the design and construction of the Thames Water Ring Main in Greater London, UK . Quarterly Journal of Engineering Geology and Hydrogeology , 42 , 5 – 20 , https://doi.org/10.1144/1470-9236/08-035 Price , M. , Downing , R.A. and Edmunds , W.M. 1993 . The Chalk as an aquifer...

... it is to water ( Pihlajavaara 1991 ), so that nitrogen-rich gas can permeate underground spaces designed to be watertight. Such an incident caused the death by hypoxia of two Thames Water employees inspecting a shaft on the Thames Water Ring Main at Stoke Newington, London, in 1988 ( Newman et al . 2013...

.... 2009 . The impact of adverse geological conditions on the design and construction of the Thames Water Ring Main in Greater London, UK . Quarterly Journal of Engineering Geology and Hydrogeology , 42 , 5 – 20 . Newell A.J. Bloomfield J.P. 2007 . Geological characterisation...

... Water Ring Main in Greater London, UK . Quarterly Journal of Engineering Geology and Hydrogeology , 42 , 5 – 20 , https://doi.org/10.1144/1470-9236/08-035 Raines , M.G. , Banks , V.J. et al. 2015 . The application of passive seismic techniques to the detection of buried hollows...

... and Experience in the East London and Thames Gateway Area . Paper presented to the Engineering Group of the Geological Society of London Meeting, 3 September 2008 . Newman , T. 2009 . The impact of adverse geological conditions on the design and construction of the Thames Water Ring Main in Greater...

... on the design and construction of the Thames Water Ring Main in Greater London, UK . Quarterly Journal of Engineering Geology and Hydrogeology , 42 , 5 – 20 . Page D.P. 1994 . The engineering geology of the Lambeth Group (Woolwich and Reading Beds), London . MSc thesis , University of Surrey...

... for growth tectonics in the Chalk; (9) Mundford, the original standard for describing and classifying Chalk for engineering purposes; (10) London Basin major construction projects in chalk including CTRL tunnels, Crossrail tunnels and Thames Water Ringmain, Thames and Lee tunnels; (11) South Downs...

... microgranite ring-dyke and bosses of mica granite and quartz syenite. The oval-shaped ring dyke encompasses 22km by 12 km including large tracts of basement as well as the main mass of centrally- inclined lavas and tufts now marked by the plateau. Volcanic rocks no doubt once covered the entire area encircled...