METHOD FOR TAMPING BALLAST UNDER LARGE NUMBER OF RAILWAY TRACK SLEEPERS Russian patent published in 1998 - IPC

FIELD: railway repair and maintenance technology. SUBSTANCE: according to method, tamping of ballast is performed under two groups of sleepers. Each group consists of two sleepers and located between them is one or two sleepers. Simultaneously with tamping ballast under aforesaid two groups of sleepers, railway track itself is raised to required position. Ballast under aforesaid one or two sleepers is tampered independently from tamping ballast under two groups of sleepers. With that, preset position of railway track remains unchanged and this allows for ensuring high productivity of tamping ballast under sleepers and keeping accuracy in adjusting position of railway track for long period of time. EFFECT: higher efficiency. 3 cl, 4 dwg