Construction technology of short sleeper vibration attenuation fastener with improved structure replacing elasticity short sleeper

Abstract

The invention belongs to the technical field of rails, and particularly relates to a construction technology of a short sleeper vibration attenuation fastener with an improved structure replacing an elasticity short sleeper. Testing and recording are carried out on rail position where a section needs rebuilding and replacing and geometric parameters, and staging construction is carried out on the section which needs rebuilding and replacing combined with the characteristics of railway construction. Each period of construction section which needs rebuilding and replacing is determined according to the time of the construction. A construction technology by root of rails is carried out on old short sleepers (80) on two rails (1) and fasteners (5) placed on the old short sleepers (80) in each period of construction; each period of construction adopts a way of construction for multiple times, and the old short sleeper (80) on one root of rails and the fastener (5) placed on the old short sleeper (80) are replaced in the construction at each time, and each time of construction adopts a construction technology of 'pulling one at multiple intervals'. The construction technology is simple and rapid, low in maintenance and construction cost.

Description

technical field [0001] The invention belongs to the technical field of rails, and in particular relates to a construction technique for replacing elastic short sleepers with short sleeper vibration-damping fasteners of improved structure. Background technique [0002] In recent years, with the rapid development of rail transit construction, especially the urban rail has gradually increased the requirements for environmental protection, vibration and noise. A large number of elastic short sleeper vibration isolation products have been used in rail vibration reduction measures, such as Figure 2a As shown, the designed vibration isolation is 8-12dB; there is an elastic shoe groove in the ballast bed, and the elastic shoe groove is set in the groove of the ballast bed 12, and the old short sleeper (80) is sleeved in the elastic shoe The elastic short sleeper is formed in the boot (90); the track fasteners supporting the rail are installed on the elastic short sleeper; the elasti...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of rail transit construction, especially the urban rail has gradually increased the requirements for environmental protection, vibration and noise. A large number of elastic short sleeper vibration isolation products have been used in rail vibration reduction measures, such as Figure 2a As shown, the designed vibration isolation is 8-12dB; there is an elastic shoe groove in the ballast bed, and the elastic shoe groove is set in the groove of the ballast bed 12, and the old short sleeper (80) is sleeved in the elastic shoe The elastic short sleeper is formed in the boot (90); the track fasteners supporting the rail are installed on the elastic short sleeper; the elastic boot (90) is usually made of rubber material, and the vibration reduction of the rail is completed by the elastic short sleeper However, due to the fatigue load and the aging and deformation of the elastic short sleeper during use, the short sleeper-elastic boot-ballast bed will be peeled off, and the gap will expand, resulting in the short sleeper being suspended, the gauge changing greatly, and reducing Phenomena such as vibration reduction and short sleeper cracking have buried a large hidden danger for driving safety. In order to avoid the continuous deterioration of this situation, improve the stability of the track system, ensure the safety of rail traffic, and enhance the vibration reduction effect, the existing track There is an increasing need for system modifications

Images