刃口推进法在流沙地段顶管中的应用
Application of Cutting Edge Propelling Method in Pipe Driving Construction in Drifting Sand Area
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- DOI:
- 作者:
- 张强, 牟宗元, 于颖
ZHANG Qiang
- 作者单位:
- 辽河油田公司油建二公司, 辽宁盘锦 124010
CNPC Liaohe Second Construction Company,Panjin 124010,China
- 关键词:
- 刃口推进;流沙;顶管
edge propelling;drifting sand;pipe driving
- 摘要:
- 文章以福建LNG泉州段工程为例,介绍了流沙地质下顶混凝土套管穿越道路时,通过采用现浇混凝土后座方法和自制刃口推进器,有效地克服了顶管后座和控制塌方两个技术难点。在连续12处公路穿越的应用中,不但解决了流沙地段顶管过程中易出现的套管顶偏、路面塌陷等难题,而且施工质量全部达到规范要求。
Two technical difficulties including driving force backup and collapse controlling were efficiently solved by adopting field-casting concrete backup and self-made cutting edge propeller when a concrete casing driven to cross road in drifting sand area. In 12 road crossing constructions in Fujian LNG Project at Quanzhou Section, applying this method resolved the difficulties such as casing driving deviation, road surface collapse, and the construction quality reached the standard requirement totally.2008,6(6): 33-35 收稿日期:2008-1-16分类号:TE973作者简介:张强(1973-) ,男,四川达州人,工程师,1998 年毕业于西南石油学院油气储运专业,一直从事长输管道、油田地面安装技术及管理工作。参考文献:
[1] 国振喜. 简明钢筋混凝土结构计算手册[M]. 北京:机械工业出版 社,2002.
[2] 黎智恒,杨东明. 软土地基对顶管施工的影响[J]. 非开挖技术,2004,(4):28-31.
