A reinforced railway sleeper structure

Abstract

The invention discloses a railway sleeper reinforcing structure. A composite winding layer is arranged outside a railway sleeper body, and a protective coating is smeared outside the composite winding layer. The railway sleeper body 1 is prepared from, by weight, 70-80 parts of PC, 10-20 parts of ABS, 1-10 parts of inorganic nanoparticles, 0.5-10 parts of AS, 15-20 kg / m3 of steel fibers, 10-13 kg / m3 of basalt fibers, 3.5-10.5 parts of a chemical-resistant modifying agent, and 0.3-1.5 parts of other assistants. The molecular weight of the AS is 10,000-80,000, and the AS comprises 10-30% of vinyl cyanide and 70-90% of styrene. The composite winding layer is formed by winding transverse bamboo split units and longitudinal bamboo fiber materials in a longitudinal-axis-surrounding winding combination mode. The railway sleeper reinforcing structure is high in structural strength, resistant to impact, low in weight, not prone to rotting, long in service life and stable in performance.

Description

technical field [0001] The invention relates to a railway material, in particular to a reinforced railway sleeper structure. Background technique [0002] At present, the railway has become the most important of many means of transportation, and the sleeper is an important part of it, and its performance plays a vital role in the safe operation of the railway and even the development of the national economy. [0003] In the history of the development of railway sleeper technology in the world, wooden sleepers, steel sleepers and concrete sleepers have appeared one after another, and these three sleepers have played an important role in different historical periods. Among them, wooden sleepers have low cost, good elasticity, light weight, easy processing and laying, and good insulation, but there are also problems such as easy cracking, poor weather resistance, and short service life. More importantly, wooden sleepers consume forest resources. , will inevitably cause serious...

AI Technical Summary

Problems solved by technology

Among them, wooden sleepers have low cost, good elasticity, light weight, easy processing and laying, and good insulation, but there are also problems such as easy cracking, poor weather resistance, and short service life. More importantly, wooden sleepers consume forest resources. , will inevitably cause serious environmental problems and affect the sustainable development of the economy

The outstanding advantages of steel sleepers are long service life and waste steel can be recycled, but the disadvantages are high cost, high noise, heavy weight, and extremely inconvenient laying and maintenance, so it is only used in a few countries

In comparison, concrete sleepers combine the advantages of low cost of wooden sleepers and long service life and good stability of steel sleepers. They are currently the most widely used sleepers, but they also have the same problems of heavy weight, elasticity and noise reduction as steel sleepers. It has disadvantages such as poor shock effect and poor insulation, and is prone to cracks under load, which poses a major safety hazard to driving safety.

Images