Prefabricated rail base unit consisting of a plurality of projections and a single continuous slab

摘要: A railroad bed assembly for supporting thereon metallic tracks is formed with a base structure which consists essentially of reinforced concrete made as prefabricated blocks the including slab section adapted to be installed over ground formation at site and least one upwardly extending projection running transversely direction having trapezoidal cross sectional configuration taken in plane parallel tracks. The are integrally prestressed material extends form tie thereupon