西气东输中卫黄河隧道设计与施工

摘要

西气东输中卫黄河隧道是国家能源战略西北通道的咽喉工程,是两气东输备用通道和西气东输二线管道的主要通道,隧道内管道最大输气能力为470亿m3/年.文章介绍了西气东输中卫黄河隧道的工程地质、水文地质概况,以及设计原则和施工方法,总结出了油气管道水下隧道工程的设计和施工特点.%The Zhongwei Yellow River tunnel, the "throat project" and standby passage of the west-east gas transmission programme as well as main passage of west-east gas transmission line 2, has a maximum capacity for gas transmission of 470×108 m3/year. The engineering geology, hydrogeology, design philosophy, and construction practice of Zhongwei Yellow River tunnel are introduced, and the design and construction characteristics of a submerged tunnel for oil and gas transmission are summarized.