Capital track repair

Capital track repair 1.1. Capital track repair is intended for replacement of assembled rails and sleepers on more powerful or less worn-out on the ways of 3-5 classes (railroad switches on the ways of 4-5 classes), mounted from new or old suitable rails, new and old suitable cross ties and fastenings, cleaning or replacement of a bed. Capital track repair can be carried out as in a complex with removal and laying of a traveling lattice cranes, and in a separate way with replacement of rails, fastenings, cross ties. 1.2. The same works are a part of works on capital track repair on sites of 3-4 classes, as at the strengthened capital repairs, except an upolozheniye of curves. On the ways of the 5th class at capital track repair replacement of the materials of the top structure of a way which are not providing safe train service with the established speeds and also the accompanying works on complex bearing of a way with repair of drainage and drainage constructions, by elimination of abysses and ballast splashes, cut of excess soil on roadsides and mezhduputyakh are made. 1.3. Planning of capital repairs is carried out proceeding from the passed tonnage, service life of a design and an actual state of a way. At the same time need of capital track repair on a site is determined by the criteria given in table 2.7. A class the Main criteria Additional criteria the Passed tonnage, or service life advanced in years of % *** the Single exit of rails (in the sum for service life on average on a repair site), piece/km * Quantity of unusable and defective units on 1 km of the top structure of a way, more Unusable derev. cross ties, % Unusable fastenings, % ** Quantity of cross ties with splashes, % 1 classes 100 4 both more than 15 15 4 2nd class 100 6 and more than 18 20 5 * A single exit of rails, and also quantity of defective rails is determined without an exit of rails by lateral wear in curves, and on sites of a jointless way without an exit of rails of leveling flights; ** On the way with reinforced concrete cross ties the total percent of linings and mortgage bolts, on the way with wooden cross ties - linings, crutches and anticreepers is counted, at the same time, the percent of unusable crutches and anticreepers is considered with coefficient 0,6. Example. On the zvenyevy way of unusable linings - 20%, crutches - 15%, anticreepers - 10%. Therefore, the sum of percent of unusable elements will make: 20 + (15 0,6)+ (10 0,6) = 35%. *** According to table 2.1 or 2.3 standard service life in the passed tonnage is defined with the lowering or raising coefficients or service life advanced in years. 1.4 For the railroad switches located on the ways which are subject to capital repairs capital repairs (on the ways 3 classes - the strengthened capital repairs) with their full replacement have to be appointed also. Information source: TsPT-53 Specifications on repair and scheduled preventive bearing of a way.