高速公路隧道洞口浅埋段的施工技术

Construction technology of shallow buried section of expressway tunnel entrance

从预注浆技术、洞口土方刷坡和锚网喷施工技术、预支护施工等方面,对高速公路隧道洞口浅埋段的施工技术进行了阐述,并在此基础上进行了施工监控量测和超前地质预报,指出在高速公路隧道洞口浅埋段的实际施工中,应当灵活运用加固措施,确保进洞的安全性。

Starting from aspects of top grouting technology,tunnel entrance earthwork slope cutting and anchor network spraying and pre-support construction,the paper illustrates the construction technologies of shallow-buried section of the highway tunnel entrance,carries out construction monitoring and advanced geological precast,and suggest to flexibly apply reinforcement measures in actual shallow-buried section construction of highway tunnel entrance so as to guarantee the tunnel entering safety.