二灰碎石基层产生纵向贯通性裂缝的原因分析  

Analysis of Reason for Longitudinal through Cracks Occurrence in Lime-fly Ash Stabilized Aggregate Base Course

作　　者：李自林[1] 董鹏[1] 朱斌[1] 吴亮秦[1] 

机构地区：[1]天津城市建设学院土木工程系,天津300384

出　　处：《河北工业大学学报》2007年第3期84-88,共5页Journal of Hebei University of Technology

摘　　要：津涞公路二灰碎石基层K3＋000～K37＋504段建成一年左右出现了长距离纵向贯通性裂缝，这些裂缝不是出现在新旧路接缝处，也不是由于路基不均匀沉降而引起的，已有的国内外文献都不能够解释产生这些裂缝的原因．通过对道路纵向贯通性裂缝的试验研究和理论分析，找出了产生纵向裂缝的主要原因，提出了切实可行的防止措施，为今后的道路工程设计、施工提供了重要的参考依据．Long longitudinal though cracks occur in the next year after lime-fly ash macadam base course on Jinlai highway K3＋000 - K37＋504 has been completed. These cracks do not appear at joints of newly-built road and the old. They are not the result of uneven settlement of subgrade either. At present none reference home and abroad can explain the reason for the cracks. By experimental research and theoretical analysis on longitudinal cracks of pavement, author suggest major reason for the cracks and then countermeasures are put forward, which provide reference to design and construction of pavement.

关 键 词：道路工程 二灰碎石基层 力学分析 纵向裂缝 

分 类 号：U416.214[交通运输工程—道路与铁道工程]