高湿度黄土隧洞的监测分析与施工稳定控制

Monitoring Analysis and Stability Control of Tunnel Construction in the Loess With High Water Content

根据汉村隧洞高湿度黄土不稳定围岩的施工监测结果，探讨隧洞变形随施工因素的变化规律和压力的分布规律，提出控制这类隧洞施工稳定性的方法和标准。这一研究较好解决了汉村隧洞的技术难点，并为施工带来了显著效益。

First, based on the construction monitoring data from Hancun Tunnel, a work of Donglei Irrigation Project which pumping water from the Yellow River in Shaanxi Province, the deformation laws of the soil with high water content around the tunnel and distribution laws of earth pressure applied upon the lining of the tunnel were discussed. Then, the methods and criteria of construction stability control were proposed. These measures settled the difficult technical problems in the construction and provided obvious benefit to the later works.