|
|
|
| Research on the Track Quality Index and Its Application in High Speed Railway Dynamic Acceptance |
| LI Guo – qing |
| (China Academy of Railway Sciences，Beijing 100081，China) |
|
|
|
|
Abstract Abstract：Research purposes： Before opening the high speed railway in China，the completion acceptance including dynamic acceptance is necessary， and the track geometry status is the key content of the dynamic acceptance. Track quality index (TQI) is the average quality to evaluate track segments by using statistical characteristic value，and it is the important index to evaluate the state of the track geometry，too. This paper evaluates the track geometry quality of high - speed railway by analyzing the track quality index of opening high speed railway over the years in China and summarizing track geometric quality assessment methods and standards at home and abroad. Research conclusions ：( 1) The TQI can satisfy the requirements of relevant acceptance criteria on those opening high speed railways in China. (2) With the improvement of railway construction and the fine adjustment and finishing technology in some operation departments，and with the enrichment of the ability and experience，track geometry quality continues to improve，and the TQI of high speed railway built in recent years is generally superior to the same level lines built earlier. ( 3 ) For high speed railway，it is suggested that the track quality index acceptance criteria corresponding the amplitude and the wavelength are complemented. (4) The research results have significance for track condition acceptance of tlie high - speed railway.
|
|
Received: 22 July 2016
|
|
|
|
|
|
|
2016, Vol. 33 
