Some tricky digging last few days, engineer wants a 1300mm raft on screwpiles for garden wall. Some of it wider to 2metres for bin/bike store
Has anyone ever used screwpiles? If we weren’t still on this pain of a job id want to do myself. We’ve had some installed before and i think they used a pressure gauge hooked to the hydraulics to check they were at correct loading but never got a chance to ask them. Going to get someone in again for these but interested if anyones had much experience with them.
Ive had them done before. It's not a standard auger drive unit, I'm sure it's readily available but just not a standard unit. It was fitted to a 2.3t machine but was about the size you would expect on an 8t. I think at a guess it had additional planetary gearing.
And then they had a pressure gauge fitted but the face displayed the torque.
They put 9 in for a garage base in a morning. And I don't think they arrived very early either.
We did however have to get an engineer to redesign the slab. In the end they wanted L bars dropped into the piles and welded to the pile. Shear links around the pile and 3 layers of mesh 1m2 around the pile. They where worried abound the piles punching through.