摘要
Abstract
With the rapid development of water conservancy and hydropower projects,more and more hydraulic struc-tures are being arranged in granite areas.Granite itself does not have the occurrence of sedimentary rock,but joints and fissures are developed.During the intrusion,primary joints are often formed,and secondary joints are generated due to the influence of later tectonic movements.Different joint and fissure characteristics have varying impacts on the project.3D borehole TV imaging technology was used to obtain thousands of sets of joint and fissure data from the exploration holes in the lower reservoir dam site area of Guangxi Hezhou Pumped Storage Power Station.Through statistical analysis,the dominant discontinuities of granite in the dam site area were identified,based on which the influence of the dominant discontinuities on the excavation slope of the dam site engineering was further discussed.关键词
花岗岩/原生节理/次生节理/钻孔三维电视成像仪/聚类分析算法/优势结构面/贺州抽水蓄能电站Key words
granite/primary joint/secondary joint/3D borehole TV imaging device/clustering analysis algorithm/dominant discontinuity/Hezhou Pumped Storage Power Station分类
建筑与水利
