“十二五”期间,国内管道建设进入高峰期,长输管道经过的地形地貌越来越复杂,尤其是西气东输二线、三线穿越的江南水网地段,纵横交错的河流沟渠穿越直接影响管道施工进度和质量。本文就截流法穿越河流进行理论计算和施工措施论述。 During the “Twelfth Five-Year Plan” period, the construction of domestic pipelines has reached its peak. The topography of the long-distance pipelines has become more and more complicated. Especially the second and third line of the West-East Gas Pipeline cross the river network, Directly affect the progress and quality of pipeline construction. This paper discusses the theoretical calculation and construction measures of river closure through the river closure.