管道穿越U形断面河流的几种导流方法
Several Methods of Diversion Used in Pipeline Crossing through Rivers of U Shaped Cross-sections
浏览(1768) 下载(1)
- DOI:
- 作者:
- 李长阁, 吕长海
LI Chang-ge
- 作者单位:
- 中国石油天然气管道第三工程公司, 河南中牟 451450
No.3 Oil and Gas Pipeline Engineering Company of China,Zhongmu,Henan 451450,China
- 关键词:
- 管道;穿越;河流;导流;施工
pipeline crossing;river;diversion;construction
- 摘要:
- 兰成渝输油管道工程成渝段,管道沿线穿越的中小型河流都是U形断面河流,具有河岸与水面高差大、河两岸施工场地狭小等特点,通过对围堰导流大开挖穿越、水下成沟穿越、定向钻穿越等几种方案的分析,最终选定了围堰导流大开挖穿越方案。该方案包括明沟导流、分段导流、水泵导流、管道导流四种方法,文章介绍了这四种方法的适用范围和施工注意事项。
Along the Cheng-Yu interval of Lan-Chen-Yu oil transmission pipeline, all medium or small sizes of rivers with pipeline crossings are of U shaped cross-sections with the problems of large elevation difference between water level and riverbank as well as small and narrow construction site. The pipeline crossing plan of cofferdam, diversion and deep-wide excavation is chosen finally by comparing it with other river crossing plans such as underwater trench digging and directional control drilling. The plan includes 4 kinds of diversions, i.e. open channel diversion, interval diversion, pumping diversion and pipe diversion. The suitable scope of application and attention items of construction for these 4 plans are introduced too.2004,3(3): 41-43,5 收稿日期：2003-8-13分类号：TE973.4作者简介：李长阁(1966-),男,黑龙江绥化市人,1988年毕业于中国石油天然气管道局职工学院长输工艺专业,工程师,一直在管道施工单位从事施工技术管理工作.通讯地址:河南省中牟县.