Investigating the Effect of Tunnelling on Existing Tunnels in London

Introduction

Investigating the Effect of Tunnelling on Existing Tunnels in London

by Dr Jamie Standing of Imperial College London

Monday 22nd October 2018 at 18:30 hours

Institution of Civil Engineers, One Great George Street, Westminster, London SW1P 3AA

Joint Evening Meeting with the British Tunnelling Society (BTS)

This event is part of the ICE’s Global Engineering Congress and this evening meeting is free to attend, but advance booking is required via the link at the bottom of this page.

Please join us afterwards in the ICE Cafe Bar for drinks sponsored by Geotechnical Observations.

Urban expansion throughout the world has resulted in the need for many new tunnelling projects to provide adequate infrastructure for increasing urban popluations. Many cities already have comprehensive underground networks and so new tunnels have to be constructed in the close proximity of exisiting tunnels. There is always concern that ground deformations associated with new tunnel construction might adversely affect nearby existing tunnels and other subsurface assets and services. In London the recently constructed Crossrail tunnels passed beneath numerous existing tunnels. Imperial College London, working closely with Crossrail, undertook major research to investigate the effect of tunnelling on existing tunnels using an interactive five path approach involving field monitoring, structural and soil testing and numerical analysis of segmental linings and field response. The main elements of the research will be described and key findings summarised (some specific to the response of existing tunnels and many additional general).

Jamie Standing

Dr Jamie Standing is Reader in Ground Engineering in the Department of Civil and Environmental Engineering at Imperial College London. His main research interests are in the areas of soil-structure interaction (tunnels, deep excavations, piles, soil nails), field monitoring, small-scale modelling, unsaturated soil mechanics and laboratory testing of soils. He has run major tunnelling research projects associated with: Jubilee Line Extension (greenfield sites and numerous building interactions); CTRL (effect of tunnelling on piled foundations) and Crossrail (effect on existing cast iron lined tunnels). He is a member of TC204 (ISSMGE Underground Construction in Soft Ground) and was secretary from 2001 to 2012. He delivered the Géotechnique lecture in 2009.

Before the lecture there will be tea and biscuits from 18:00 hours.

Please join us afterwards in the ICE Cafe Bar for drinks sponsored by Geotechnical Observations.

The recording of the event has now been uploaded on the ICE website.