油气管道穿越长江的方法探讨

Discussion on Measures for Oil-gas Pipeline Crossing through the Yangtze River

针对长江流域水文地质条件变化大的特点,对油气管道穿越长江的方法进行了介绍,重点分析了水平定向穿越法、矿山隧道法、盾构法的施工原理和特点。结合国内已经成功穿越长江的工程实例,重点介绍了各个穿越工程的水文地质条件、工程设计思路和设计方案及施工过程。结合长江不同地段的水文地质条件,提出了对于不同水文地质条件、不同管道直径条件下穿越长江的最优方案。

As to the diversification of the hydrological and geological conditions along the Yangtze River,the possible measures for oil-gas pipeline crossing through the Yangtze River were introduced,including the horizontal-directional drilling method, mining tunnel method and shield construction method. The principle and characteristics of these methods were analyzed. The main hydrological and geological crossing conditions,design principles and design process of engineering cases crossing through the Yangtze River in China were discussed. According to the diversification of the hydrological and geological conditions in the Yangtze River,the optimization measures for crossing through the Yangtze River under various hydrological and geological conditions and different pipeline diameter were presented.