CAJ | 학술논문

山西西龙池抽水蓄能电站地下厂房围岩为水平薄层岩层，工程竣工发电已多年，施工及运行期安全，但工程开工前，还没有在水平薄层岩体中开挖大跨度高边墙地下洞室的成功范例，鉴于此，以山西西龙池抽水蓄能电站工程为依托，从工程地质角度，对水平薄层围岩岩性特征、岩体结构特征、岩体力学特性、大跨度高边墙地下洞室围岩分类、围岩变形特征等方面进行了研究，依据研究成果，对洞室开挖支护施工、围岩变形监测等进行了分析，依据围岩变形监测成果对围岩力学参数进行了反演，验证了前期勘察成果，取得了在水平薄层状地质环境中开挖大型地下洞室的宝贵经验，进而为在水平薄层状地质体中修建大跨度、高边墙地下洞室提供了更多的技术支持，对此类不良地质条件下大型地下洞室群建设具有重要的指导意义。
산서서룡지추수축능전참지하엄방위암위수평박층암층，공정준공발전이다년，시공급운행기안전，단공정개공전，환몰유재수평박층암체중개알대과도고변장지하동실적성공범례，감우차，이산서서룡지추수축능전참공정위의탁，종공정지질각도，대수평박층위암암성특정、암체결구특정、암체역학특성、대과도고변장지하동실위암분류、위암변형특정등방면진행료연구，의거연구성과，대동실개알지호시공、위암변형감측등진행료분석，의거위암변형감측성과대위암역학삼수진행료반연，험증료전기감찰성과，취득료재수평박층상지질배경중개알대형지하동실적보귀경험，진이위재수평박층상지질체중수건대과도、고변장지하동실제공료경다적기술지지，대차류불량지질조건하대형지하동실군건설구유중요적지도의의。
The surrounding rock of underground powerhouse of Xilongchi pumped storage power station in Shanxi is horizontal thin layered, the project has been completed and in operation for many years, it is safe during construction and operat ion, but before the project starts, there was no successful example for excavation of underground cavern with large span and high side wall in horizontal thin layered. In view of this, this paper based on the project of Xilongchi pumped storage power station, studied the horizontal thin surrounding rock from the view of engineering geology, such as lithology charact eristics, structure characteristics of rock mass, mechanical characteristics of rock mass, rock classification of underground cavern with large span and high side wall, deformation characteristics of surrounding rock and so on;according to the research results, excavation and supporting of cavern construction and deformation monitoring of surrounding rock was analysized;mechanics parameters of surrounding rock are inverted on the basis of deformation monitoring results. It verified the previous investigation results and made valuable experience of large underground cavern excavation in horizontal thin bedded geological environment, and provided more technical support for construction of large span underground cavern in the horizontal thin layered geological bodies, has an important guiding significance for large underground caverns construction under this kind of adverse geological conditions.