Piling work for a new car park at the Scottish Exhibition and Conference Centre (SECC) in Glasgow has overcome difficult ground conditions, geotechnical contractor Bachy Soletanche said this week.
The piling specialist is working for design and build contractor SCC on the £750,000 project and is now halfway through the seven week programme of work.
The new multi-storey car park is located over a former dock that was backfilled in the 1950s, which meant there was a high potential for obstructions. Bachy used a CM120 piling rig to probe the area before starting piling to determine the suitability for carrying out continuous flight auger piling (CFA) at the site. The survey showed the top few metres were too unstable for CFA so Bachy is using a Bauer BG28/36 rig to case the piles through the first 10m.
The CFA piles within the dock were installed with 880mm outside diameter Bauer casing along with a 750mm diameter CFA auger, to a maximum depth of 23m to socket into the underlying sandstone. The piles outside of the dock are 600mm and 750mm diameter CFA piles.
Extreme wet weather has also been a challenge on the project but Bachy Soletanche contract manager Chris Wallbank said he is confident the work will be completed on time.
The next stage of work on the Glasgow site will involve piling for a link bridge between the car park and the arena, which will start after Christmas.