Abstract：Research purposes: As the train runs at high speed on passenger dedicated railway，the technical standard of passenger dedicated line is high，requiring that the slope preservation and drainage facilities have enough strength，stability and durability． The effects of water immersing，saturating and flushing soil are the major causes for the appearance and development of subgrade diseases，and even the factors of impacting roadbed security and stability．Selecting proper engineering measures and promptly draining the water collected in slope and slope toe and draining underground water are crucial to guaranteeing the traffic safety of passenger dedicated line with high speed．
Research conclusions: Considering the conditions of topography，geology，hydrogeology and other factors，the technical measures and suggestions are offered to subgrade waterproof and drainage engineering to ensure the structural strength and stability of the subgrade through doing the study on slope protection and waterproofing and drainage system for the subgrade of passenger dedicated line．
杨 军. 客运专线路基防排水设计研究[J]. 铁道工程学报, 2011, 28(2): 52-55.
YANG Jun. Research on Design of Waterproof and Drainage for Subgrade of Passenger Dedicated Railway. 铁道工程学报, 2011, 28(2): 52-55.
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2011, Vol. 28 
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