工程地质学报Issue(5)：944-950,7.DOI:10.13544/j.cnki.jeg.2014.05.025
乌东德水电站坝址区河床深厚覆盖层组成与结构地质勘察研究
COMPOSITION AND STRUCTURE OF GEOLOGICAL PROSPECTING IN RIVER DEEP OVERBURDEN LAYERS AT DAM SITE OF WUDONGDE HYDROPOWER STATION
摘要
Abstract
The exploration,sampling and in-situ testing at river beds are one of the most common technical problems associated with hydropower projects in China.The Jinsha River Wudongde Hydropower Station Dam Area has the problems of the riverbed overburden thickness,composition,structure,genetic diversity of hybrid uneven, high cofferdam and deep foundation pit stability.Therefore,we carried out special research work on exploration and sampling technique and in-situ test method.We obtain undisturbed samples with specially developed for single and double tube type hammer.The method makes up for the deficiency of drilling sampling and visualization technology (such as borehole digital TV,hole drilling electromagnetic wave CT)and conventional geophysical methods(such as seismic exploration,borehole acoustic test)combined with the creative development of in situ test.They are comprehensive to identify the composition and structure of river bed overburden and riverbed deep cover.They open up a new path on the layer geological investigation.The engineering properties of layer provides the premise and analysis for the geological high cofferdam and deep foundation pit stability evaluation.The treatment engineering design provides the geological basis with sufficient reliability.They can be used for reference in similar engineering geological investigation.关键词
乌东德水电站/河床深厚覆盖层/组成与结构/钻孔数字彩电/孔间电磁波CTKey words
Wudongde hydropower station/River deep overburden layers/Composition and structure/Borehole digital TV/Crosshole electromagnetic wave CT分类
建筑与水利引用本文复制引用
李会中,郝文忠,潘玉珍,杨静,肖云华,谢实宇..乌东德水电站坝址区河床深厚覆盖层组成与结构地质勘察研究[J].工程地质学报,2014,(5):944-950,7.基金项目
水利部公益性行业科研专项经费项目（201201039），三峡地区地质灾害与生态环境湖北省协同创新中心． （）
