某水库深厚覆盖层的工程地质特性研究及建基面选择  

Research on the Engineering Geological Characteristics and Foundation Surface Selection of a Deep Overcover Layer in a Reservoir

作　　者：王可为 WANG Kewei(Dongguan Water Resources Survey and Design Institute Co.,Ltd.,Dongguan 523000,China)

机构地区：[1]东莞市水利勘测设计院有限公司,广东东莞523000

出　　处：《云南水力发电》2025年第1期27-30,38,共5页Yunnan Water Power

摘　　要：某水库位于高山峡谷区,工程地质条件复杂多变,坝线选择余地不多,唯一理想段覆盖层厚度达60+m,通过试验结合工程经验查明覆盖层物理力学性质,以弱胶结卵石混合土为主,受地质条件及当地天然建筑材料制约,综合推荐混凝土面板堆石坝并对深厚覆盖层上建坝进行案例分析评价及建基面选择。A reservoir is located in a high mountain canyon area with complex and variable engineering geological conditions.There is not much room for dam line selection,and the only ideal section has a cover layer thickness of 60+m.Through experiments and engineering experience,the physical and mechanical properties of the cover layer are determined,mainly consisting of weakly cemented pebble mixed soil.Due to geological conditions and local natural building materials constraints,a concrete face rockfill dam is recommended comprehensively,and case analysis and evaluation of dam construction on deep cover layers are conducted,as well as foundation surface selection.

关 键 词：工程地质 深厚覆盖层 面板堆石坝 渗漏 高山峡谷 

分 类 号：P64[天文地球—地质矿产勘探] TV222[天文地球—地质学]