Thoughts on Transferring Traditional Operation to Full-process Logistic Service

Through expounding the methods of Guiyang South Station transferring to full-process logistic service such as exerting transport market by transferring mechanism, integrating station with dedicated line as to create special market, trying to create brand of full-process transportation, and convoying loading and transportation by jointless connection and ＂front-shop and back workshop＂, based on analyzing ＂three obvious items＂ and ＂three deficiencies＂ existing in practice, this paper puts forward the measures of transferring to the full-process logistic service in further step, such as organizing self-supporting train fleet and mastering market initiative; optimizing price mechanism and adapting for market demand; well building logistic port depending on changed center; and increasing hardware level and strengthening the capacity of freight yard.     

英文摘要

Discussion on Construction Planning of Test Line for Urban Train
Yu Hongpeng, Sun Ning, Guo Yiqing 2
Combining with the actual demand of test for urban train and the test results of the first train of Shenyang Metro Line 1 on loop test line of China Academy of Railway Sciences, the improvement and further construction planning points of test line are comprehensively presented.     

Study on horizontal and vertical temperature gradient of ballastless track on curve lineEI北大核心

Research purposes: In order to get the time-varying rules of temperature field distribution in the track structure with superelevation and build the horizontal and vertical temperature gradient of ballastless track, a continuous observation of CRTS II; by using temperature sensors on curve segment of a passenger dedicated line was held. Research conclusions: (1) The temperature change of ballastless track between daytime and nighttime is big, the temperature changing value of surface was 24.7℃ in maximum, 19℃ in average. (2) The temperature changing value became small and the time of maximum temperature come late with the increase of distance to surface. (3) At the bottom of the track structure, the temperature changing value was 6.1℃ in maximum, 5.0℃ in average. (4) Fitting curve of vertical temperature gradient of longitudinally connected ballastless track on curve line can be exponential curve, and the curve sharp can match the distribution about the vertical temperature gradient of the code for design of bridge and culvert in China. (5) The horizontal temperature gradient of the CRTS II; longitudinally connected ballastless track included the track slab and support layer, temperature gradient of track slab could be fitted by using quadratic function, temperature gradient of support layer could be fitted by using piecewise linear function. (6) This study can provide guidance for the temperature load model in the design of high speed railway in central China.     

ABSTRACTS

Security Technology of Japan Shinkansen Railway Yu Zhanyou 1
The operation record with zero mortality of Japan Shinkansen for 45 years is based on their management idea of ＂safety first＂, strong disaster prevention awareness, advanced and mature technology but not pursuing the most advanced guiding ideology, a set of legal procedures, the severe technology certification system, the accurate traffic control system, the strict overhaul system, as well as the examination and maintenance system. In this paper, the successful experiences of Japan Railway are introduced and summarized, which have important references for safety guarantee of China urban rail transit industry.