客运专线无砟轨道铁路路基纵断面设计膏

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Abstract Research purposes: n order to effective control of the settlement and stiffness differences of the subgrade connecting to bridge and tunnel，it is necessary to carry out the longitudinal section design of subgrade．This paper presents the function and significance of the longitudinal section design of subgrade and discusses its main contents and technical gists．

Research conclusions:The longitudinal section design of subgrade shall be carried out for the passenger ballastless track railway．Its content include the inspection and treatment of connected stiffness differences and settlement differences as well as engineering interfaces．For the design of passenger ballastless track railway，the principle of“Longitudinal priority”shall be carried out：firstly the longitudinal section design of subgrade works and then aided design of the transversal section based on its longitudinal section design shall be performed．The quantity of the transversal section of subgrade can be appropriately reduced．

Key words： assenger dedicated railway ballastless track track formation foundation different settlement control stiffness uniformity longitudinal section design of subgrade

Received: 20 October 2010

PACS:

U212．34

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Cite this article:

WEI Yong—Xing. Longitudinal Section Design on Ballastless Track Subgrade of Passenger Dedicated Railway[J]. 铁道工程学报, 2010, 27(12): 18-22.

URL:

http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2010/V27/I12/18

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