| 摘要 |
FIELD: construction.SUBSTANCE: design of underground track superstructure includes a rail pad from serially arranged reinforced concrete slabs, elastic elements between slabs tied into single packets by stressed steel ropes, stretching via elastic elements in conical grooves in ends of slabs and fixed in anchors placed in fastening cavities. Slabs are selected in plan with rectangular shape with fixed width along the track with alternating cross section by thickness. The surface of slab edges along track length is selected with inclination inside the axial line. The slab also comprises a groove - a drainage trench, and the lower part of slabs comprises a groove in the form of a trapezoid symmetrical to the axis of the track. Slabs are placed onto horizontally arranged car tyres with chambers laid on a concrete base in an underground shaft in two rows along the track and connected by an aid duct with a compressor.EFFECT: reduced vibration and reduced sound during operation of trains, increased safety of rolling stock motion.6 dwg |
