The contract involves installing 10 m long pairs of AZ26 sheet piles through very stiff clays in between the tracks while trains are in use.
Two RTG telescopic leader rigs were chosen for the piling. An RG16T for pre augering, and an RG19T for installation of the sheet piles using a 150 tons resonance free variable moment vibrator.
Two 70 tonne telescopic crawler cranes were also required for servicing the project. Two Sennebogen 673Rs were selected. One for unloading and loading sheet piles in the steel yard and the other for unloading at the site between the railway tracks.
The sheet piles are transported between the yard and the work site during possession each Saturday night via tractors and trailers also provided by AGD.
The hirer was able to supply all the plant and operators to handle this project efficiently.
All AGD piling rig operators can also operate crawler cranes negating the need for each machine to have its own operator as pile distribution is going on at different times to pile installation.