The construction of railway infrastructure involves various techniques and processes to ensure the efficient and safe operation of trains. Two crucial aspects of railway construction are track laying and ballasting. Let's delve into these techniques in detail:
1. Track Laying:
Track laying refers to the process of installing the railway tracks on the prepared roadbed. The following steps are typically involved:
a) Clearing and Grading: Before track laying can begin, the construction site needs to be cleared of any obstructions and properly graded to ensure a stable foundation. This involves removing vegetation, debris, and any uneven or unsuitable ground conditions.
b) Subgrade Preparation: The subgrade is the natural or prepared soil surface on which the tracks are laid. It needs to be properly compacted and graded to provide a stable base for the tracks. The subgrade is typically leveled, and any soft spots are reinforced or replaced to prevent settlement.
c) Ties Installation: Ties, also known as sleepers, are rectangular or trapezoidal structures made of wood, concrete, or composite materials. They are placed perpendicular to the tracks and serve as the support and a....
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