摘要
三峡库区隐伏岩溶问题是近期发现的重大工程地质问题。利用电法EH 4、地震面波、浅震、地震CT等方法对隐伏岩溶进行探测 ,得出隐伏岩溶在中三叠统巴东组 (T2 b)泥灰岩中普遍存在 ,具有由浅至深由强变弱的分层性和局部不均匀性 ,并与地貌和地下水具有密切关系。
The covered karst is the great important engineering geologic problem recently discovered in Three Gorge Reservoir region.Through the explorations by EH\|4 electric survey, seismic surface wave sounding,shallow seismic sounding(CDP)and seismic topography(CT) it is found that the covered karst exists widely in argillious limestone of Badong formation of middle Triassic(T 2b).Essentials of dominant option and collocation,profile layout and reasonable interpretation in geophysical exploration are put forward for the covered karst.
出处
《工程勘察》
CSCD
北大核心
2003年第1期64-66,共3页
Geotechnical Investigation & Surveying
基金
三峡移民开发局基金项目 (970 7
990 4 )
关键词
三峡库区
地球物理探测
隐伏岩溶
geophysical exploration
covered karst
Three Gorge Reservoir region
