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 III1 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
Key words
Available rock mass/dam foundation surface/rock mass quality classification/geological defect treatment
维普
万方数据