STUDY OF CONDUCTED WATER TRACER OF INTERSECTING FAULT OF LOWER BEDROCK OF EARTH-ROCKFILL DAM
LIN Tong1，2，CHEN Jiansheng1，3，CHEN Liang3
(1. State Key Laboratory of Hydrology-water Resources and Hydraulic Engineering，Hohai University，Nanjing，Jiangsu 210098，China；2. College of Hydrology and Water Resource，Nanjing，Jiangsu 210098，China；3. Institute of Geotechnical Engineering，Hohai University，Nanjing，Jiangsu 210098，China)
Abstract：The seepage amount of one reservoi in the city of Shenzhen is about ten times of designed one till 2007，and the seepage condition is rather complex. In order to find out the reason of seepage and ascertain the position of seepage passage，seepage condition of the dam was analyzed. Firstly，the tracer was used to investigate temperature field and velocity field of the dam，and then the abnormity seepage area was found. Secondly，according to the abnormity seepage area and data of the piezometric tube，it is clear that seepage occurred in lower bedrock，and it happened to be a concentration passage. Finally，combining with the geological conditions and construction situations，it is confirmed that the intersecting fault in lower bedrock of earth-rockfill was the main concentrating seepage passage，and the concept seepage model of dam was established. The comprehensive analysis is an effective way to investigate the dam seepage，which can avoid using single method and has a certain engineering significance.
林统,陈建生,陈亮. 土石坝下伏基岩交错断层导水示踪研究[J]. 岩石力学与工程学报, 2009, 28(S2): 3645-3652.
LIN Tong1，2，CHEN Jiansheng1，3，CHEN Liang3. STUDY OF CONDUCTED WATER TRACER OF INTERSECTING FAULT OF LOWER BEDROCK OF EARTH-ROCKFILL DAM. , 2009, 28(S2): 3645-3652.
