Rail Road ConstructionIn principle, the foundation layers (track foundation) was created to maintain the stability of the railway tracks when the TRAIN sets. So the rail tracks remain in place, no wobbling, no banned into the ground, as well as withstand the load circuit of a passing TRAIN. In addition, the Foundation layer also serves to transfer the load weight (axle load) of KA to spread to the surface of the Earth (in the picture above is the Natural Subsoil/Ground).The Foundation layer is the layer that is to be prepared in advance before the building of the railway tracks, so that its position is under the railroad tracks and serves as the Foundation. As the structure of the Foundation layer of a building, the Foundation is also made up of layers of soil and rock material, including:1. FORMATION of LAYERFormation of layer soil compaction is certainly as Foundation tracks railroads. Formation of this layer prepared as ditaburkannya place a layer of ballast. This layer is a mixture of soil, sand, and clay which is set a level of density and humidity of water. In the developed countries that the path TRAIN his very solid, added a layer of Geotextile underneath the formation layer. Geotextile material is a kind of fabric which are made of permeable polypropylene or polyester that is useful to facilitate drainage from top to bottom (subgrade to the subsoil), and simultaneously strengthen the formation layer
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