河曲引黄灌溉工程隧洞竖井施工设计

摘要

The Hequ Yellow River Diversion Project has a water diversion tunnel, the length ot which is 3345m. In order to ventilate the constructing tunnel and discharge fume in it, three ventilation shafts must be excavated. The paper introduces this shaft's design, the methods to support its cross-section and its construction process.%河曲引黄灌溉工程有一条长3345m的隧洞。为了这条施工隧洞的通风和排烟，需要开挖三条通风竖并。文中叙述了竖井的设计、通风竖井断面的支护方法和其施工过程。