| 摘要 |
<p>An improved rail sleeper for haulage road tramline in underground mines / tunnels, which comprises a base steel bar of rectangular size (1) having two nos. inverted steel U-plate attachments (3) on both the top sides (being welded) along with a couple of one side cut circular steel rings (2) on both the bottom sides of said main bar (1), the said inverted U-plate (3) having a couple of holes (4) on its top side suitable for fixing with Nut (5) and bolt (7) having a cleat (6) tightened in between with the U-plates (3); the each end of main base bar (1) having wrapped with a semi-circular steel wire net (8) keeping the U-plate (3) inside it in a manner so that the topside remaining open, both the ends of the said main bar (1) along with its arrangements (2,3) and wire net (8) being solidified with concrete mixture (9) in a 3D trapezoidal form; being capable of holding steel rail (10) of suitable size over the top surface of concrete block (9) with the help of nut (5), bolt (7) and cleat (6) on both the sides of the main bar(1).</p> |
