›› 2015, Vol. 29 ›› Issue (3): 62-65.

• 工程实录 • 上一篇    下一篇

道路拓宽改建常见病害与路基拼接技术研究

陈 亮1,唐承耀2,刘军勇2   

  1. (1.安徽省高等级公路工程建设指挥部,合肥 230088;2.中交第一公路勘察设计研究院有限公司,西安 710065)
  • 收稿日期:2014-06-17 出版日期:2015-06-20 发布日期:2015-06-26
  • 作者简介:陈 亮(1983-),男,工程师,研究方向为交通工程设计及施工管理。

Common Highway Embankment Hazards and Construction Techniques of Transition Zone between Existing and New Embankments

CHEN Liang1,TANG Chengyao2,LIU Junyong2   

  1. (1.Anhui Highway Construction Project Office, Hefei, 23088;
    2.CCCC First Highway Investigation and Design Co. Ltd., Xi'an 710065)
  • Received:2014-06-17 Online:2015-06-20 Published:2015-06-26

摘要: 公路改扩建工程关键技术难题是新老路基的差异沉降,过大的差异沉降将会导致路基的破坏,最终导致路面产生裂缝、沉陷和开裂,严重影响公路的使用性能,其使用寿命也将加速衰减。分析了道路改扩建工程中几种常见的病害类型与特征,对病害机理进行研究,根据国内外研究现状与工程经验提出了新老路基拼接技术。

关键词: 道路拓宽改建工程, 路基, 病害, 机理分析, 拼接技术

Abstract: The differential settlement between the existing and new embankment is the critical topic in highway widening projects. Excessive differential settlement will lead to the failure of the highway subgrade, settlements and cracks in the pavements. These defects can severely affect the performance of the pavement and reduce the service life of the pavements. This paper discusses five (5) common hazards in the highway embankment widening projects and their causes.

Key words:  Highway Widening Projects, Embankment Subgrades, Common Hazards, Hazard Mechanism, Transition Zone