层次分析法在管道穿越河流方案选择中的应用

引入层次分析法．解决大口径油气管道河流穿越的方案选择问题。介绍了层次分析法的基本原理，详细论述了用层次分析法进行大口径油气管道河流穿越方案选择的步骤，以施工周期、河床适应性、施工工艺复杂性、对其它行业的影响、投资为评价因素，构建了最佳河流穿越方案选择的层次结构模型，并应用层次分析法对输气管道唐河穿越方案进行了分析，得出了多个穿越方案对于最佳河流穿越方案的相对权重，最后确定水平定向钻穿越为唐河最佳穿越方案。

Application of AHP on the Choice of Pipeline's River - Acrossing Project

In many schemes of big-diameter Pipeline River -acrossing, the layer-analysis method was first used. The essential of layer-analysis method, How to carry into execution the layer-analysis method in the scheme choice of big-diameter pipeline river -acrossing, the layer-structure model with the factors including construction periods was established, riverbed adaptability, technique complicacy, the effect on the relative assignment and the investment evaluate. At the same time, the author analyze the gas pipeline river -acrossing of Tang River making use of the layer analysis method, after the calculating, the weighted relative value of other schemes to the best river -traversing scheme was obtained. In conclusion the HDD (Horizontal Directional Drilling) is the best scheme among the all schemes of the Tang river -acrossing.