大断面公路黄土隧道开挖施工坍塌成因及防治施工技术

Causes of collapse and construction technology for large section highway loess tunnel excavation

大断面隧道施工中因地质、工艺等多方面因素易引发坍塌事故。文章以大断面公路黄土隧道工程为例,针对其开挖施工中出现的坍塌问题展开探讨,总结成因并提出可行的防治措施,取得了良好的防治效果。

In the construction of large section tunnels,collapse accidents are likely to be caused by many factors such as geology and technology.The article takes the large section highway loess tunnel project as an example,discusses the collapse problem in its excavation construction,summarizes the causes and proposes feasible control measures,and has achieved good control effects.