Study On The Maintenace Mode Of The Speed-raising Railroad

As the technology of the world high speed rail (HSR) developed, the operating speed of that kind of trains are raising high fast. The travelling time is saved, the cost of the trip is reducing, and the international society of the environment protecting consciousness for the earth we live by was alse enhanced, all made the HSR presented a vigorous development in worldwide. Compared with the developed countries, the planning and constructing of HSR started late but developed fast in our country, made the HSR development in our country had more extensive space. The economic and social benefits brought by the speedup are obvious to all, sufficiently proved the HSR in China has a strong vitality and great prospects.Now, with more and more new lines and speed-raising lines are put into operation, people are more and more paying much attention to the HSR safety operation. In order to reach the demand of high-speed transportation, railway lines must be stable in long-term, to make sure the passengers are comfortable and safe. Modification, maintenance the speed-raising lines must put on the agenda. To meet the demand of high-speed transportation from reforming the maintenance model, strengthening the track control and trains'reliability. To ensure the safety of high-speed trains'operation and the trip smoothly and comfortably, the tracks must strengthen maintenance and repair.This paper reviewed the foreign trend of the high-speed transportation development, referenced the experience of the developed countries, combined with the actual situation in our country, studied the key points for the current status of the speed-raising lines' maintenance and modification. The maintenance of the speed-raising lines mainly depends on improving the track repair mode, strengthening the detection of the tracks and improving the track maintenance mode to maintain and manage the track in a scientific way.