黎城至霍州高速公路太岳山隧道工程地质特性及围岩稳定性评价  

Engineering Geological Characteristics and Surrounding Rock Stability Evaluation of the Taiyueshan Tunnel from Licheng to Huozhou Expressway

作　　者：赵梦 ZHAO Meng(Gansu Provincial Geological and Mineral Exploration and Development Bureau Second Geological and Mineral Exploration Institute,Lanzhou Gansu 730020,China)

机构地区：[1]甘肃省地质矿产勘查开发局第二地质矿产勘查院,甘肃兰州730020

出　　处：《西部探矿工程》2023年第11期190-193,共4页West-China Exploration Engineering

摘　　要：太岳山隧道为越岭型隧道,隧址区的工程地质条件复杂。在对拟建隧道建设场地的地形地貌、地质构造、地层岩性、不良地质及特殊岩土、水文地质条件以及洞体围岩工程地质特征等工程地质特性进行详细分析的基础上,进而对隧道围岩稳定性做出评价。研究认为隧道洞口边坡稳定性差,洞口段地基稳定性较好,隧址区基本适宜拟建工程建设,对于硬质脆性岩类的隧道围岩,必须选择合理的开挖方法,并且在施工过程中必须采取一定的安全防护措施。研究结果为工程设计与建设提供必要的地质依据。The Taiyueshan Tunnel is a mountain crossing tunnel with complex engineering geological conditions in the tunnel site area.Based on a detailed analysis of the engineering geological characteristics of the proposed tunnel construction site,including terrain,geological structure,geological lithology,unfavorable geol-ogy and special geotechnical conditions,hydrogeological condi-tions,and engineering geological characteristics of the tunnel sur-rounding rock,an evaluation of the stability of the tunnel surround-ing rock is made.Research suggests that the stability of the tunnel entrance slope is poor,and the foundation stability of the entrance section is good.The tunnel site area is basically suitable for the proposed construction project.For hard and brittle rock tunnel sur-rounding rock,a reasonable excavation method must be selected,and certain safety protection measures must be taken during the construction process.The research results could provide necessary geological basis for engineering design and construction.

关 键 词：太岳山隧道 工程地质特性 边坡 围岩稳定性 岩爆预测 

分 类 号：U451[建筑科学—桥梁与隧道工程]