高店水库大坝建基面可利用岩体选择及地质缺陷处理  

Selection of Available Rock Mass and Treatment of Geological Defects for the Foundation Surface of Gaodian Reservoir Dam

作　　者：张运勋 张和平 Zhang Yunxun;Zhang Heping(Shangrao Hydraulic and Power Surveying and Designing Institute,Shangrao 334000,Jiangxi)

机构地区：[1]上饶市水利电力勘测设计院,江西上饶334000

出　　处：《陕西水利》2024年第11期118-119,127,共3页Shaanxi Water Resources

摘　　要：拱坝对建基面的要求较高,大坝建基面的选择受地形、地质条件和大坝规模等众多因素影响,大坝建基面的选择直接关系到大坝的安全和经济效益。以坝基岩体工程地质特性为基础,结合室内试验及原位试验等,提出坝基岩体质量分级表。对高店水库大坝建基面岩体进行质量划分,中高坝段以Ⅱ类岩体为主,中低坝段以Ⅲ1类岩体为主,对坝基局部地质缺陷及风化岩体进行工程措施处理后,可满足大坝建基面要求。Arch dams have high requirements for the foundation surface.The choice of the dam foundation surface is affected by many factors such as topography,geological conditions and dam scale.The choice of the dam foundation surface is directly related to the safety and economic benefits of the dam.Based on the engineering geological characteristics of the dam foundation rock mass,combined with indoor tests and in-situ tests,a dam foundation rock mass quality classification table is proposed.The quality of the rock mass of the Gaodian Reservoir Dam foundation surface is divided.The middle and high dam sections are mainly Class II rock mass,and the middle and low dam sections are mainly Class II1 rock mass.After engineering measures are taken to deal with local geological defects and weathered rock mass in the dam foundation,the requirements for the dam foundation surface can be met.

关 键 词：可利用岩体 大坝建基面 岩体质量分级 地质缺陷处理 

分 类 号：TV64[水利工程—水利水电工程]