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文章针对软弱黄土地区隧道施工技术,结合甘肃省平(凉)定(西)高速公路建设的实际情况,从软弱黄土层的形成原因及特性、软弱黄土隧道施工方案、隧道施工阶段的主要病害及原因等方面,对软弱黄土公路隧道施工过程中出现的问题及原因进行了分析研究,提出了以加强超前支护、加强排水和加强地基处理相结合的软弱黄土隧道施工处理措施,对工程实际具有重要的参考意义。
In this paper, according to the tunnel construction technology in soft loess area and the actual situation of Pingding (West) expressway construction in Gansu Province, this paper analyzes the formation reason and characteristics of soft loess layer, the construction scheme of soft loess tunnel and the main diseases in tunnel construction Causes and so on, the problems and causes in the process of construction of soft loess highway tunnel are analyzed and analyzed, the construction measures of soft loess tunnel with strengthening of advance support, strengthening of drainage and strengthening of foundation treatment are proposed, Important reference meaning.