在隧道施工中,混凝土性能不仅关系到施工质量,而且很大程度上决定了施工成本。本文结合石林隧道仰拱施作实例,引入二次振捣这种简单高效的工艺来实现混凝土性能的改善,主要介绍仰拱二次振捣施工技术,并对其机理进行分析。 In tunnel construction, concrete performance is not only related to the quality of construction, but also to a large extent determines the construction cost. In this paper, the Shilin tunnel inverted arch was used as an example, the introduction of secondary vibrating this simple and efficient process to achieve the improvement of concrete performance, mainly introduced the inverted arch vibrating construction technology, and its mechanism analysis.