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由于膨胀土具有遇水后崩解软化的特性,因此膨胀土地区的隧道施工技术一直是研究的重点。本文结合内蒙古自治区某膨胀土地质隧道工程实例,就隧道施工中的关键技术进行了介绍,从施工方案选择、施工准备及方案的具体实施等方面进行了初步的探讨。
As the expansive soil has the characteristics of softening after disintegration in water, the tunnel construction technology in the expansive soil area has been the research focus. In this paper, a case study of a expansive soil geological tunnel in Inner Mongolia Autonomous Region is introduced in this paper. The key technologies in tunnel construction are introduced. The preliminary discussions are made on the selection of construction schemes, construction preparation and the concrete implementation of the schemes.