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新疆北部干渠的隧洞围岩均为第三系的砂岩、泥岩等,属极软岩,通过对软岩隧洞的开挖、支护、塌方的处理以及小洞径长隧洞工程施工中遇到的主要问题的处理,总结了一些经验,供今后软岩隧洞以及小洞径长隧洞施工时参考。
The surrounding rock of the main channel in the northern part of Xinjiang are all Tertiary sandstone and mudstone, which belongs to the extremely soft rock. Through the excavation, support and landslip treatment of the soft rock tunnel and the construction of the small tunnel and long tunnel The main problems of treatment, summed up some experience for the future soft rock tunnel and tunnel construction of small diameter reference.