Elastically mounted ballast free railway track superstructure - has outside appliance simultaneously positioning precast concrete pieces in wet concrete slab

摘要

There is a concrete support slab, mounted on elastic material fitted to the substructure. It has precast concrete components let into it as a mounting for rail fixtures, in a railway permanent way structure without ballast. When the elastic material (1) has been laid on the substructure, and immediately before or following application of the soft concrete for the support slab (10), a number of prefab. concrete components are simultaneously inserted in their ultimate position, by a device (3) supported outside the concrete support slab cross-section. This makes it feasible to lay this type of superstructure, with precast concrete components let in, a single process.