Underwater Rehabilitation of a 113 m High CFRD:Experiences from Turimiquire
The deterioration of concrete face rockfill dams (CFRD), be it caused by insufficient resistance to differential settlement and movement, poor construction methods or climatic factors, has in the past resulted in leakages often amounting to unacceptable levels.This paper discusses the repair of CFRDs with geomembranes, with special emphasis on the underwater rehabilitation of Turimiquire 113 m high CFRD in Venezuela.An exposed polyvinylchloride (PVC) composite geomembrane was installed to restore imperviousness to the deteriorated facing where leakages across the full dam face reached 9 800 L/s.PVC geomembranes can withstand large deformations and maintain imperviousness over time thanks to their elongation properties and durability and because of this they are increasingly being used worldwide in the repair of fill dams, as well as all other types of dams.
waterproofing geomembrane geocomposite underwater installation CFRD
Scuero A. Vaschetti G.
Carpi Tech, Via Passeggiata 1, Balerna 6828, Switzerland, alberto Carpi Tech, Via Passeggiata 1, Balerna 6828, Switzerland, gabriella
国际会议
昆明
英文
73-83
2013-11-01（万方平台首次上网日期，不代表论文的发表时间）