As part of our ongoing development in Lott Lane, our ABM team recently completed an impressive piece of ground engineering.
To meet local utility standards, the project required the installation of a wastewater pumping station. However, due to the site’s steep gradient, the station had to be placed more than five meters below the ground, roughly a two storey drop.
To do this work safely, our engineers and specialists designed a temporary work design and installed sheet piles to retain the surrounding the soil and prevent collapse. Using a piling rig and vibro hammer, 7 – 8 sheet piles were driven into position. When unexpected hard ground conditions arose, the team began drilling through the soil to ensure the piles could be safely installed.
With the retention system in place, a careful excavation process began with the team digging in stages. After a section of soil was removed, support braces were installed before digging deeper. This “dig and brace” sequence was repeated carefully until the full depth was achieved.
After the final depth was reached, a concrete base was poured in, allowing for the team to remove the lower frames and safely instal the underground tanks.
Through expert planning, strong collaboration, and technical excellence, our ABM team delivered a safe, high-quality installation under challenging conditions.
At ABM we Build Safely, Build Quality, Build Together and Build for the Future.
