3D technology helps resolve structural problem at Crossness
State-of-the-art 3D technology is being used to solve a potential structural problem at the Victorian Crossness pumping station, according to Thames Water.
Due to the Abbey Wood station's historical Grade I listed importance, a new method had to be found to investigate and solve a ground collapse, measuring 1.5m wide and deep. In response, teams from Thames Water’s eight2O alliance have used historical planning and engineering drawings and photos to create a 3D digital model.
This is allowing engineers to see the site from all angles, up close and from underground for a ‘worm’s eye’ view of the culverts and pipes, to discover what has caused the issue.
Dr James Apted, from eight2O, said: “The culvert system is very extensive and much more intricate than we thought, and the model allows us to see it in great detail. It also allows us to see the underground system in a clear formation, and helps match it up with what we see at the surface. It’s like a huge jigsaw, and you’re putting all these things together to work out what has happened, what is happening, and how it is affecting the surface.”
Crossness pumping station, which is leased to the Crossness Engines Trust, was decommissioned in the 1950s and its culverts were filled with a mixture of sand and cement. It’s not yet known whether the collapses were caused by natural subsidence of the ground, or whether the man-made culverts and the fillings have degraded, causing the land to slip away.
Francesca Sykes, also from eight2O, said: “The model helps to visualise what it’s like under there. The other good thing is the model is constantly changing and adapting every time we discover something more.”
The team is committed to stepping up its pursuit of what has caused the issue, and Dr Apted added: “This is important work. Crossness is not just a pumping station, it’s part of our heritage, it was the first pumping station to be built in the great clean-up of London. It’s a great asset not only to the public, and the country, but to Thames Water and the company has shown great commitment in keeping it in good condition.”
- Farringdon station flood ‘a learning point' for Thames Water Thames Water has described last week's flood at London’s Farringdon station as a ‘learning point’ and has said it needs to... Read More >
- DCWW to spend £4.5M on Rhyl and Kimnel Bay wastewater network Dŵr Cymru Welsh Water (DCWW) is investing £4.5M to deliver major improvements to the wastewater network in the Rhyl... Read More >
- Ofwat tells UU, Bristol and Thames to cut £1.3BN from AMP6 plans Ofwat has today written to United Utilities, Thames Water and Bristol Water outlining a £1.3BN difference between the... Read More >
- Reliability engineering key to resilience As a result of the 2014 Water Act and Ofwat, water companies are increasingly studying how resilient they might be to... Read More >
- Getting to Grips with... site security The current threat level for international terrorism in the UK is classed as ‘severe', and damage or destruction to... Read More >
- Tanks need a spot of TLC Proper maintenance of tanks is key to ensure their long and productive life, while refurbishment can give a new lease of... Read More >
- Fundamental Equations Alec Erskine explores how some key equations can assist with the business of asset management in water Read More >
- Yorkshire Water's decision-making uses ‘five capitals’ approach Yorkshire Water has developed a new decision-making framework for PR19 which quantifies natural and social factors Read More >