Land and Water Services Ltd’s intimate knowledge of the waterways around East London and particularly the Olympics were instrumental in their award of the contract from BMW for the installation of the piled foundations for their showroom situated over the Waterworks River in the Olympic Park.
Access via the Olympic Park was severely restricted and the bridge heights over the river also restricted the size of plant that could be brought to site via the river. Land & Water Services solution and their water-borne plant meant that no material or plant access was needed through the Olympic Park.
The project required 22nr tubular piles, 559mm dia to be driven to a depth of 12-14m below river bed level. The piles were then capped and beams and knee braces fixed ready to receive the steel work for the new showroom building. Overall length of the tubes was in the region of 16m so Land & Water Services elected to have them delivered to site in two pieces and used their own Ravestein pontoon mounted with hiab crane to drive them into the ground. Section one was driven to water level with a vibrating hammer with the second section being welded to complete the pile. The tube was then driven to final level or set with an 8t hydraulic drop hammer. The piles were trimmed with beams and braces fitted within a 5mm tolerance.
Vibration monitoring equipment was fitted to a nearby major UK Power Networks cable prior to the works commencing. At no time were the monitors triggered by our works. Land & Water Services concluded this successful contract for BMW as Principal Contractor.