Sciences in Cold and Arid Regions ›› 2015, Vol. 7 ›› Issue (5): 611–618.doi: 10.3724/SP.J.1226.2015.00611

• ARTICLES • 上一篇    

Investigation of frost heave prevention using permeable subgrade structure

DeGou Cai, JianPing Yao, HongYe Yan, QianLi Zhang, AiJun Cheng, Jie Liu   

  1. Railway Engineering Research Institute, China Academy of Rails Science, Beijing 100081, China
  • 收稿日期:2015-03-11 修回日期:2015-06-01 发布日期:2018-11-23
  • 通讯作者: HongYe Yan, Assistant Research Fellow, Railway Engineering Research Institute, China Academy of Rails Science, Beijing 100081, China. E-mail: yanhongye_2005@163.com E-mail:yanhongye_2005@163.com
  • 基金资助:
    This work is supported by the China Railways Corporation research projects entitled "The technical tests for the high speed railway subgrade frost heave prevention in the alpine" (Project No. Z2013-038), "The long term observation of frost-heave technology for Ha-Da high-speed railway during the operation" (Project No. Z2012-062) and "Optimal design for high-speed railway subgrade structure under different grade and environment" (Project No. 2014G003-A), and from the Railway Scientific and Technological Research and Development Center called "The mechanism and evolution rule of the graded gravel under freeze and thawing cycles for the high speed railway" (Project No. J2014G003) and "The disease control technology and equipment of gradating gravel in surface layer of subgrade bed" (Project No. 2013YJ032).

Investigation of frost heave prevention using permeable subgrade structure

DeGou Cai, JianPing Yao, HongYe Yan, QianLi Zhang, AiJun Cheng, Jie Liu   

  1. Railway Engineering Research Institute, China Academy of Rails Science, Beijing 100081, China
  • Received:2015-03-11 Revised:2015-06-01 Published:2018-11-23
  • Contact: HongYe Yan, Assistant Research Fellow, Railway Engineering Research Institute, China Academy of Rails Science, Beijing 100081, China. E-mail: yanhongye_2005@163.com E-mail:yanhongye_2005@163.com
  • Supported by:
    This work is supported by the China Railways Corporation research projects entitled "The technical tests for the high speed railway subgrade frost heave prevention in the alpine" (Project No. Z2013-038), "The long term observation of frost-heave technology for Ha-Da high-speed railway during the operation" (Project No. Z2012-062) and "Optimal design for high-speed railway subgrade structure under different grade and environment" (Project No. 2014G003-A), and from the Railway Scientific and Technological Research and Development Center called "The mechanism and evolution rule of the graded gravel under freeze and thawing cycles for the high speed railway" (Project No. J2014G003) and "The disease control technology and equipment of gradating gravel in surface layer of subgrade bed" (Project No. 2013YJ032).

摘要: This paper set up a series of comprehensive targets based on the concept of 'anti-freeze filler', which include reasonable water retention rate, frost heave characteristics, and compaction characteristics of filling material. Then, a type of permeable graded gravel is proposed, suitable for high-speed railway subgrade. A series of in-door water retention, permeability, and frost heave tests were performed under different graded conditions. Water retention, permeability, and frost heave characteristic of different graded filling materials can be determined, in order to define the gradation range of permeable graded gravel. Relying on the frost-heave monitoring record of high speed railway in Northeast China, a series of experimental studies were performed, which included on-site filler production, compaction test, and the anti-frost effect test, in order to improve the production and compaction techniques of permeable graded gravel. From the research of this paper, the use of permeable graded gravel subgrade as the anti-frost structure for the high-speed railway subgrade in cold areas is feasible.

关键词: high-speed railway, frost-heave prevention structure, permeable filling material, filling material production, compaction control

Abstract: This paper set up a series of comprehensive targets based on the concept of 'anti-freeze filler', which include reasonable water retention rate, frost heave characteristics, and compaction characteristics of filling material. Then, a type of permeable graded gravel is proposed, suitable for high-speed railway subgrade. A series of in-door water retention, permeability, and frost heave tests were performed under different graded conditions. Water retention, permeability, and frost heave characteristic of different graded filling materials can be determined, in order to define the gradation range of permeable graded gravel. Relying on the frost-heave monitoring record of high speed railway in Northeast China, a series of experimental studies were performed, which included on-site filler production, compaction test, and the anti-frost effect test, in order to improve the production and compaction techniques of permeable graded gravel. From the research of this paper, the use of permeable graded gravel subgrade as the anti-frost structure for the high-speed railway subgrade in cold areas is feasible.

Key words: high-speed railway, frost-heave prevention structure, permeable filling material, filling material production, compaction control

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[2] Qiang Luo, WenQiang Lv, QingZhi Ye, RuiGuo Zhang. Structural analysis and design of frost resistance function for subgrade of high-speed railway ballasted track in cold regions[J]. Sciences in Cold and Arid Regions, 2015, 7(5): 594-604.
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