雅鲁藏布江盆因拉隧道主要工程地质问题

Main Engineering Geological Problems of the Penyinla Tunnel in the Yarlung Zangbo Gorge

盆因拉隧道为雅鲁藏布江峡谷段高地应力区某铁路的关键性控制工程之一。为了指导隧道施工过程的安全性,从地形地貌、地层岩性和地质构造等方面对盆因拉隧道沿线工程地质条件进行了研究,并采用超前地质预报方法、水压致裂法和涌水量预测进行了现场勘测,最后对工程区的工程地质问题进行了评价,提出了针对该隧道的施工指导意见。

The Penyinla tunnel lying in the Yarlung Zangbo gorge is one of the key projects of a railway construction project. This paper has a discussion on engineering geological and hydrogeological problems in terms of landform, lithology, and geological structure based on in-situ investigation.