Hailaer Area Change Existing Railways Spread Regional Seamless Line Design Research

At present,the railway construction is in the midst of the leap developmen.Seamless line is important in railway construction.Cancel the CWR rail joint,therebyeliminating the wheel on the rail joint impact,making the trainrunning smoothly,passenger comfort,extending the line equipment andvehicle service life,reducethe maintenance workload of the line,is the development direction of the trackof modernization.Due to China’s vast geographical area,northeast temperature difference obvious,results in a large variations in temperature stress in the rail.Therefore,thelaying of CWR in alpine region Hailar topicis particularly important.Aimed at the specialties of the proposed hailar south station in northeast China,this article in the seamless line calculation by using the local meteorological statistical temperature,reasonable selection of parameters such as locomotive,track,to the temperature difference is bigger case temperature calculation for locking and rail.USES line stability and rail strength calculation method,and considering the nature of two kinds of different deformation wavelengths,using the maximum equivalent static load as the wheel load,check calculate line stability and strength of steel.Switch to consider in the calculation of reasonable use quote with parameters such as resistance,resistance,rail fastener ballast resistance,used in the continuous rail,seamless rail temperature additional stress calculation and analysis,at the same time on the stability of the rail,rail strength and tongue rail displacement is calculated.Through calculation show that when calculating the lock on the rail line of regional seamless laid within the temperature range,the circuit and the stability of the rail and rail strength can meet the requirements.Shore based on wang chau line hailar south station to elicit hulun buir industrial park dedicated railway based on an engineering example,the design method of interval and regional seamless lines,based on the calculation of temperature,locking and rail and the stability of jointless track and the strength of the steel structure research,think in hailaer area existing jointless track circuit based on regional seamless track laying work,not only has the very strong feasibility,and alpine region with hailar latitude line of regional seamless laid with extension,so as to make the overload transportation in the northeast China can get further development.