Technical and economic costs structure analysis by types of the continuous welded rails length integrity restoration

Abstract

   In order to ensure the conditions for safe and uninterrupted train traffic, as well as to predict more accurate economic losses associated with limiting the speed of movement or downtime of trains, the task of developing a calculation for promptly determining the need for maintenance and repairs of the track remains urgent. The calculation should take into account such basic data as: the number of train pairs in circulation per day, the gross mass of trains, the type and mass of locomotives used.
   The article considers the cost calculation analysis of rail length integrity restoration, taking into account the economic costs necessary to eliminate the causes of the rolling stock speed limit, the costs of current maintenance, the cost of the permanent way elements necessary for replacement and the costs in cases of downtime or speed limit.
   The structure of the proposed calculation is presented in detail. Using the example of existing technical documentation and taking into account the orders in force on the West Siberian Railway, examples of the use of calculation in the conditions of Trans-Siberian railway, the Central Siberian Railway and low-activity lines are considered.
   Based on the calculations carried out, it was determined that the dynamics of changes in the final costs of restoring the rail length largely depends on the costs of short-term restoration.
   Depending on the number of pairs of trains running along the section of the rail length restoration, the number of trains (from one to four passenger and from three to ten freight) falling under the speed limit changes.