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

作　　者：李长阁[1] 吕长海[1] 

机构地区：[1]中国石油天然气管道第三工程公司,河南中牟451450

出　　处：《石油工程建设》2004年第3期41-43,共3页Petroleum Engineering 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.

关 键 词：管道 穿越 河流 导流 施工 

分 类 号：TE973.4[石油与天然气工程—石油机械设备]