Discussion on the rehabilitation scheme of homogeneous earth dam in collapsible loess area
For dams built in the 1960s and 1970s,due to the limitation of dam construction conditions,cracks in the dam body and seepage ofdam foundation occurred on theearth and rock damslocating in loess area.Taking Bajiazui reservoir in Qingyang city as an example,based on the cause reasons for cracks in earth and rock damslocating incollapsibleloess area,seepage treatment scheme is proposed.By study of previous and current rehabilitation schemes,it is obtained that adding concrete cutoff wall in dam body can not only effectively stop the inner seepage through cracks,but also cut off the seepage pas-sage in the dam body and dam foundation.In this way,the seepage safety of the dam is guaranteed,which is worthy of reference.
万方数据
