山区高速公路连拱隧道中导洞快速施工方法  

Fast Construction Method for Middle Guide Tunnel of Multi-arch Tunnel on Mountainous Expressway

作　　者：刘翠丽 LIU Cui-li(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2023年第2期112-115,共4页Yunnan Water Power

摘　　要：山区高速公路隧道一般设置为分离式的双洞,双洞间距一般为30m左右,称之为分离式隧道。有时受地质条件以及施工工艺影响,一些隧道不得不采用连拱隧道。对连拱隧道中导洞的开挖方法、支护型式进行简要论述,结合现场实际情况,总结连拱隧道中导洞快速施工方法。Mountainous expressway tunnels are generally set as separate double tunnels with a distance of about 30m, which is called separate tunnel. Sometimes influenced by geological conditions and construction techniques,several tunnels have to use multi-arch tunnels. This paper briefly describes the excavation method and support type of the guide tunnel in the multi-arch tunnel, and summarizes the rapid construction method of the guide tunnel in the multi-arch tunnel in combination with the actual situation on site.

关 键 词：山区高速公路 连拱隧道 中导洞 施工技术 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]