New abutment piles required to replace a single lane bridge in Ohura, to a 2 lane bridge.
6 piles, 750mm diametre, and up to 12m deep were required, with embedment into solid silt stone, and drilling through mixed fill. Casings were required to prevent collapsing holes, and coring was required to get to depth when drilling the rock.
Machine Used: SR30 fixed mast drill rig + 55t crane
©2021 Spiral Drillers
Site by RAZOR Web Design