改扩建工程路堤加宽设计和施工中几类常见问题的讨论

文章编号:(201602-0013-04

改扩建工程路堤加宽设计和施工中几类常见问题的讨论

  1,陈  2

1.西安公路研究院,陕西 西安 7100652.长安大学 公路学院,陕西 西安 710064

  要:结合公路改扩建工程中旧路堤加宽,从衔接形式、选料、确定裁切位置、地基处理和采用土工格栅五个方面,分析新旧路堤衔接造成的纵向裂缝和局部沉陷原因,对施工中的施工工序、雨季施工、完善临时排水和避免对旧路堤结构和强度造成影响等提出相应措施,避免盲目采用注浆或打各类桩的处理方案。

关键词:改扩建工程加宽路堤设计施工病害

中图分类号U412          文献标识码A

Issues in Widening Design and Construction of Highway Embankment

for Reconstruction and Extension Projects

ZHANG Jie1CHEN Yu2

1.Xi’an Highway Research InstituteXi'an 710065China

2. Chang'an University Highway InstituteXi'an 710064China

AbstractBased on the original embankment widening of the highway reconstruction projectreasons of longitudinal cracking and uneven settlement between the new and original embankment were analyzed from connection methodsfilling materials, benching locationfoundation treatment and application of geo-grid. In additionmeasures of construction procedureconstruction during the rainy seasontemporary drainageand possible damage to original embankment structure and strength wer put forward to avoid the treatment of grouting and piling.

Key wordsreconstruction and extension projectwideningembankmentdesignconstructionhazard