管道穿河工程水毁灾害分析

Analysis on flood damage of crossing river pipeline project

在我国，管道运输作为长距离输送的一种重要手段在国家经济建设中正在发挥越来越显著的作用，这也使得管道安全问题变得重要起来。其中，管道与河流的交叉工程直接受到河床演变过程的影响，成为埋设管道设计，保证管道安全的关键因素。调查分析表明，我国石油管道穿河工程的水工保护存在诸多问题，这些问题贯穿于穿河管道的设计、施工、维护等诸多方面，有的已造成大量直接经济损失和严重环境影响，本文探讨了产生这些问题的基本原因，提出了管道埋设水工设计中应注意的特殊河床演变问题。

Pipeline transport, as an important mean of fluid materials, is playing more and more important roles in the economical development in China. Naturally, as a long distance pipeline, it is necessary to cross the rivers. In such situation, flood damage of the crossing river pipeline becomes a serious problem for the normal operation of the whole project. This paper gives a generl consideration on the hydraulic protection for the river crossing pipeline. Investigations indicate that most of the pipeline hydraulic damage problems are resulted from the bed scour or riverbank erosion. For the safety of pipeline transport project, some special considerations on fluvial process of the crossing reach need to be noted.