Abstract：Research purposes: As the introduction of ballastless track structure becomes the developed direction of high-speed railway line，this paper tries to get some solutions and suggestions in design application by analysis and research to subgrade for Shi Jiazhuang-Zhengzhou passenger dedicated railway line.
Research methods: Refering to some regulation and experience at home and abroad，this paper studies and compares the subgrade filling ， groundwork treatment ， transition segment location，economy of subgrade and bridge，etc. for Shi Jiazhuang-Zhengzhou passenger dedicated railway line.
Research results: For the high speed passenger dedicated railway line，the subgrade filling had better be crude and eligible or after improving test ， the proper treatment measure should be adopted to control settlement ， the transition segment should be properly designed and the height and section for the bridge and subgrade should be confirmed in reason.
Research conclusions: In the design of ballastless track railway subgrade of high-speed passenger dedicated line， especially in plain area. We should emphasize considering on subgrade filling ， settlement control ， transition section and subgrade and bridge compare etc. and confirm the best scheme by some necessary tests and methods of economy and technique comprehensive comparison.
郭建红. 石郑客运专线路基设计有关问题的研究[J]. 铁道工程学报, 2007, 24(4): 16-19.
GUO Jian-hong. Research on Problems about Design of Subgrade for Shi Jiazhuang- Zhengzhou Passenger Dedicated Railway Line. 铁道工程学报, 2007, 24(4): 16-19.
2007, Vol. 24 
版权所有 © 2014 《铁道工程学报》编辑部