Future Evening Meetings

The BTS holds monthly evening meetings from September to June, generally on the third Thursday of the month. Unless otherwise stated, the meetings are at the Institution of Civil Engineers (ICE) with the lecture starting at 6pm. Additional meetings are arranged by the BTS Young Members, by regional groups and as joint meetings with other societies. Click on the calendar to place this meeting in your Outlook calendar; click on the download button for a copy of the flyer; and click on the film icon to view the meeting live.


Advanced Site Characterisation – helping to avoid the unforeseen and reduce project cost

Tunnelling projects typically overrun by more than 30% and performance has shown little improvement in recent decades. Inadequate understanding of ground conditions is a principal cause of delay and cost escalation – yet technologies exist that could make previously unforeseen conditions foreseeable. The presentation will highlight innovations in site characterisation, including developments in: • data acquisition and processing including geophysics and instrumented drilling to build a high-resolution geological/geotechnical model; • iterative ground modelling with 3D visualisation – the starting point of BIM and the best way to predict the impact of geohazards on construction; • data delivery such as dynamic reporting via online portals which can combine geophysical, geotechnical, monitoring and other data.


Dr Rod Eddies, Fugro

Discussing Procurement: Dependency of successful project delivery on procurement

In addition to the usual Thursday BTS lecture, this talk, organised by the ICE Graduates and Students Committee, will be delivered by BTS members Bob Ibell and Kevin McManus and will take place on Monday 24 September. Booking is not required.Please download flyer for further details.


Bob Ibell, formerly Chairman of both London Bridge Associates and of the BTS; Kevin McManus, Construction Manager, London Bridge Associates

NB: Tuesday 9th October at the QEII Conference Centre in Westminster. Title: Brenner Base Tunnel

This month only, the BTS Evening Meeting has been moved to Tuesday and will be held at the QEII, following on from the BTS Conference.


Booking is required for this joint BGA/BTS lecture: Investigating the effect of tunnelling on existing tunnels in London

This event is part of the ICE’s Global Engineering Congress and this evening meeting is free to attend, but advance booking is required. This can be made from the Events section of the BGA website. 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.


Dr Jamie Standing, Reader in Ground Engineering in the Dept of Civil and Ground Engineering, Imperial College, London

BTSYM November 2018 Meeting


Cadent Gas Chelsea to Battersea Pipeline Tunnel Project


Andrew Hejdner, Project Manager, Cadent Gas (National Grid); Nicholas McCrossan, Site Manager, tRiio; Veriuska Ortiz Lovera, Geotechnical Engineer, Mott MacDonald

Crossrail - Immersive 360 stills and video behind the scenes


Drew Gardner

Challenges of the Design and Construction at the Gotthard Base Tunnel, Switzerland


Yves Boissonnas, Sika

Joint BTS/MinSouth meeting: Salt mining in Cheshire

Please note that this event is earlier in the month than is usual


Compass Minerals

Joint BGA/BTS meeting. Booking Required. The Skempton Award Lecture: Water and Tunnelling – lessons from 40 years of interesting problems.

The talk will highlight David Hartwell's experience in finding solutions to problems with groundwater associated with shafts and tunnels over the last 40 years. Along the way lessons were learnt, many of which do not appear in groundwater or soil mechanics text books. Two major projects will be highlighted: the Storebaelt tunnels in Denmark, including pressure relief for the cross passages and the MOSES offshore dewatering scheme. The second major project concerns the recovery of the flooded Docklands Light Rail tunnel under the river Thames; freezing was considered but the scheme adopted included wells in the river and horizontal wells drilled from within the tunnel. David was awarded the 13th Skempton medal by the BGA in 2018. He is recognised world-wide as a leading authority on groundwater and tunnelling and has extensive experience investigating and developing practical solutions to groundwater related geotechnical issues for tunnels, heavy civil engineering and mining projects.


David Hartwell

Elan Valley Aqueduct


Phil Cull, Barhale