Trains of all kinds are all considered one of the most popular means of transport in the world, which have evolved significantly from what it was in the past. Before the emergence of technologically advanced trains powered by electricity was the old trains is characterized by several elements such as smoke, black coal, wagons interconnected by loops, but the highlight was to draw attention is the rail lines, which resides beneath gravel and small stones.
Why is there grit and small stones down the train tracks?
We all know that the rail made of steel tracks, stretching for miles long on the earth's surface, where the subject of heat and contraction, vibrations and the accumulation of rain due to bad weather, also are susceptible to the growth of weeds and plants from the bottom.
The purpose behind the development of the gravel is to keep the wood panels in place. As if these planks sleeper reservation rail tracks and keep it in place. Stones heterogeneous and has jagged edges so as to prevent the wooden edges of the slide on top of each other.
Wood panels bear the weight of the train on the railroad, which thus is passed to the small stones, which in turn distribute it to the base. This facilitates the tracks on the face of the earth movement, thermal expansion and the weight difference, and allows for the rain influence through the tracks and do not allow water to sink these routes that are high enough off the ground.