• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 25 Issue 2
Mar.  2012
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Article Contents
WEI Xiankui, QUAN Shunxi, WANG Ping. Influencing Factors of Adjustment Quantity of Vertical Track Profile Irregularity[J]. Journal of Southwest Jiaotong University, 2012, 25(2): 198-203. doi: 10.3969/j.issn.0258-2724.2012.02.005
Citation: WEI Xiankui, QUAN Shunxi, WANG Ping. Influencing Factors of Adjustment Quantity of Vertical Track Profile Irregularity[J]. Journal of Southwest Jiaotong University, 2012, 25(2): 198-203. doi: 10.3969/j.issn.0258-2724.2012.02.005

Influencing Factors of Adjustment Quantity of Vertical Track Profile Irregularity

doi: 10.3969/j.issn.0258-2724.2012.02.005
  • Received Date: 24 Jul 2011
  • Rev Recd Date: 22 Sep 2011
  • Publish Date: 25 Apr 2012
  • In order to probe into the relationship between practical adjustment quantity and calculated adjustment quantity of vertical track profile irregularity, a calculation method for adjustment quantity of vertical track profile irregularity was put forward, and a coupling calculation model of rail-fastener-rail-pad was established. The influencing factors, including vertical rail-pad stiffness, sleeper span and numbers of loosened fasteners and adjustment sleepers were analyzed. The research results show that vertical rail-pad stiffness has a large influence on the adjustment quantity when there is only one adjustment sleeper, while sleeper span and the number of loosen fasteners have a little influence on the adjustment quantity. Under the condition of continuous multiple adjustment sleepers with the same calculated adjustment quantity, the adjustment quantity of in-between sleepers can reach the calculated adjustment quantity.

     

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