CONTINUOUS WELDED RAILS LAYING METHOD Russian patent published in 2000 - IPC

FIELD: railway transport; permanent ways. SUBSTANCE: rail length and equalizing rails adjoining rail length are placed on base. Newly laid equalizing rails are fastened to base and to adjoining sections of track, and beginning of length is rigidly connected with equalizing rail. Clearance ΔL_max is set between end of length and adjoining equalizing rail. Longitudinal tensile force N_max is applied to end of rail length having placed movable loads P₁ and P₂ on both adjoining rails, tensile force being directed towards clearance ΔL_max. Movable load P₃ is placed in middle of rail length. Then longitudinal force is removed to form clearance ΔL_des. End of length is connected to base and load P₄ is placed on length. Length is connected to base after elongation. EFFECT: enhanced efficiency of laying of rail sections. 8 dwg