Method of reinforcing railway on small radius curve and easement curve

Abstract

The invention relates to a method of reinforcing a railway on a small radius curve and an easement curve. The method comprises the following steps: by using a special wooden sleeper, locking the wooden sleeper above a D-type temporary beam with a U-shaped bolt; leaning the inner wall of the longitudinal beam of the D-type temporary beam against the special wood with a short wood to prevent transverse slip due to the loosening of the U-shaped bolt, so as to ensure double tracks of the line stable; meanwhile, adjusting concrete pillows of the original line to fall between D-type temporary beam steel pillows so as to ensure the transverse crosswise demand of the double tracks of the line; and additionally burying top and twin-side steel rails at the ends of the D beam to fix the D-type temporary beam to resist line slip generated by transverse torque in the section in travelling. By adopting the combined structure for reinforcing the small radius curve and lines in the easement curve, the elements of the line can be maintained unchanged and the travelling safety can be ensured. The using condition of the D-type temporary beam is widened, the cost is lowered, the construction efficiency is improved, and the structural technical risk and the construction risk are reduced. The method provides reference to future engineering construction, accumulates experience and is obvious in economical and social benefits.

Description

technical field [0001] The invention relates to a method for reinforcing railways on small-radius curves and transitional curves, and belongs to the field of civil engineering construction. Background technique [0002] In recent years, with the acceleration of the urbanization process, the urban population is increasing day by day, and the urban traffic volume is increasing in series. Considering the urban development, the urban roads are getting wider and wider. Because the underpass interchange can save land and cost, and It has less impact on the surrounding existing buildings (such as lighting, etc.), and has irreplaceable advantages in urban road construction. However, when the bridge is located in the railway station yard, the line at the crossing position is a curve and a transitional curve section, and the radius of the curve is small, which is smaller than the use conditions of the D-shaped beam, and the D-shaped beam cannot adapt to the superelevation change of th...

AI Technical Summary

Problems solved by technology

It solves the technical problem that the current method cannot adapt to the superelevation change of the outer rail in the transitional curve section and cannot ensure that the deformation of the line at the position of the crossover line is within the allowable value of the specification, which always exists in the existing technology

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