METHOD AND DEVICE FOR BALLASTLESS TRACK CONSTRUCTION Russian patent published in 2007 - IPC E01B29/00 E01B1/00 

FIELD: laying, rebuilding, or taking-up tracks, particularly forming and repair upper ballastless track structure, for instance in tunnels, subways and on bridges.

SUBSTANCE: method involves installing rail lengths with rail seat members in design position on concrete base over thermoplastic layer with the use of adjusting means; pressing rail seat members to concrete base with pressing anchors embedded and grouted in concrete base. P pressing anchors are inserted through concrete base and lower parts thereof are secured to tunnel liner plate and/or load-bearing structure of bridge. Pressing anchor for above method realization comprises pin with one threaded end and means to secure thereof to liner plate and/or load-bearing structure of bridge located at opposite end thereof.

EFFECT: increased reliability and permanence of upper railroad structure, possibility of vehicle movement along repaired road section just on repair completion.

13 cl, 3 dwg