输气管道跨越二十年概况近二十年来,随着四川气田的开发,输气管道的敷设有了很大发展。由于四川地形复杂,气田分散,将天然气输送到各主要城市与工厂,要通过不少湍急河流和深谷峭壁,增加了管道建设的艰巨性和复杂性,但也由此而促进了输气管道跨越的建设发展。二十年来,我们先后进行过七十多座管道跨越工程设计,管径从小到大,跨度从几十米 Gas pipeline spanning two decades Overview The past two decades, with the Sichuan gas field development, the laying of gas pipeline has made great progress. Due to the complex terrain of Sichuan and the scattered gas fields, the transportation of natural gas to major cities and factories has increased the difficulty and complexity of pipeline construction through many rapid rivers and deep-valley cliffs, but also promoted the leaping of gas transmission pipelines Construction and development. Over the past two decades, we have conducted more than seventy pipe cross-engineering projects with pipe diameters ranging from tens to tens of meters