穿河油气管道防冲工程措施及埋深问题研究

Study on Anti-scour Engineering Measure and Cover Depth Problem for Oil Pipeline Across River

穿越河流的长输油气管道受到水流一定的冲刷后 ,有可能导致管段的裸露甚至断裂。这不仅影响管道的安全运行 ,还将造成河流的严重污染。以往在确定油气管道穿越河流埋深的方法以及水工保护方式上存在一些问题。为此 ,我们在科研的基础上 ,提出了一个比较可靠的洪水冲刷深度计算方法与公式及确定河道横向变形的数值模型。同时 ,归纳总结出一些管道防冲常用的工程措施。此项工作的成果对管道工程的设计与管理部门具有一定的参考价值。

After a oil pipeline across river is scoured by water for some time,it is possible to make the pipeline uncovered even broken.It not only affects the safety of the pipeline operation,but also may result in serious pollution in river.Because in the past there were some problems about the method to determine the cover depth of oil pipeline across river and the ways for hydroulic protection,based on scientific research,we present a more reliable method calculation for of flood scouring depth and a model for determination of river course transverse deformation,at the same time summarize some useful anti-scour engineering measures for pipelines.