On this construction site in Munich a gap between two existing buildings will be closed and a new residential building with an automatic underground car park will be constructed. An approx. 8.5 metre deep excavation pit has to be constructed for the underground car park. The material in the ground is gravel or conglomerate.
An ER 600 is used on a CAT 314 crawler excavator. In this combination, a milling capacity of 12 to 15 cubic metres per hour is achieved with a material strength of 15 to 20 Mpa, whereby the outer walls of the outbuildings have to be milled very carefully.