海巴洛隧道倾斜薄层炭质板岩围岩大变形控制技术研究  

Research on Large Deformation Control Technology of Inclined Thin Carbonaceous Slate Surrounding Rock in Haibaluo Tunnel

作　　者：唐生炳 田英杰 王康云 Tang Shengbing;Tian Yingjie;Wang Kangyun(Yunnan Infrastructure Investment Co.,Ltd.,Kunming,Yunnan 650500;Yunnan Lixiang Expressway Investment and Development Co.,Ltd.,Kunming,Yunnan 650217)

机构地区：[1]云南建设基础设施投资股份有限公司,云南昆明650500 [2]云南丽香高速公路投资开发有限公司,云南昆明650217

出　　处：《工程技术研究》2022年第11期28-30,共3页Engineering and Technological Research

摘　　要：文章分析了香丽高速公路海巴洛隧道倾斜薄层炭质板岩地层围岩大变形特征,探讨了围岩大变形影响因素,提出了相应的控制措施。倾斜薄层炭质板岩受施工扰动影响,围岩变形具有变形量值大、变形速率高、持续时间长的特征,呈现非对称大变形模式。围岩大变形受岩性、地下水、施工扰动因素影响,采用地层预加固以及最大限度地降低施工扰动、减少超挖的技术措施,可有效控制围岩变形。This paper analyzes the characteristics of large deformation of the surrounding rock in inclined thin carbonaceous slate stratum of Haibaluo Tunnel on Xiangli Expressway, discusses the influencing factors of large deformation of the surrounding rock, and puts forward corresponding control measures. Inclined thin carbonaceous slate is affected by construction disturbance. Surrounding rock deformation has the characteristics of large deformation value, high deformation rate and long duration, and presents an asymmetric large deformation mode. The large deformation of the surrounding rock is affected by lithology, groundwater and construction disturbance factors. The deformation of the surrounding rock can be effectively controlled by adopting the technical measures of strata pre-reinforcement, minimizing construction disturbance and reducing over-excavation.

关 键 词：薄层炭质板岩 施工扰动 围岩大变形 控制措施 

分 类 号：U455.7[建筑科学—桥梁与隧道工程] U451.2[交通运输工程—道路与铁道工程]