框架桥上岔区板式无砟轨道施工技术研究

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Abstract Research purposes: As the track standard of high － speed railway is high，sometimes the switch has to be installed on frame type bridge due to the limitation of the landscape． So it is necessary to research and summarize the construction technology for laying slab ballastless slab track in switch area on frame type bridge．

Research conclusions: The construction technology for laying slab ballastless slab track in switch area on frame type bridge includes technologies of laying the extruded board and sliding layer with high stremgth，pouring the concrete of base layer，laying the switch slab，pouring the emulsified asphalt slurry，nailing the switch slab and producing lateral chock block． The construction technology for laying ballastless slab track in switch area on frame type bridge is very complex with many work procedures． It must ensure and strictly control the construction quality and precision in order to meet the requests of less maintenance and high regurality of slab ballastless track in switch area on frame type bridge．

Key words： frame type bridge ballastless slab track in switch area construction technology

Received: 15 December 2010

PACS:	U213． 2 + 44
	U238

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	HE Xin
	WU Wei － fan

Cite this article:

HE Xin,WU Wei － fan. Construction Technology for Laying Ballastless Slab Track in Switch Area on Frame Type Bridge[J]. 铁道工程学报, 2011, 28(4): 32-36.

URL:

http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2011/V28/I4/32

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