BEHAVIOR OF THE CERRO DEL (A)GUILA RCC DAM DURING INITIAL OPERATION
The Cerro del (A)guila project in Peru represents the final step of the Mantaro River major hydropower scheme cascade development.This 520 MW hydropower scheme,in operation since 2016,includes an 88 m high and 270 m long RCC gravity-arch dam equipped with 6 mobile gates providing a total capacity of the surface spillway of around 7000 m3/s.The bottom outlets increase the total discharge capacity of the dam up to 12000 m3/s.The volume of the dam is approx.0.5 Mm3 with a relatively high percentage of vibrated concrete due to the fact that the 6 bottom outlets are large and require high strength concrete.The bottom outlets are in fact designed to allow an easy annual flushing of the reservoir,knowing that the sediment yield is around 3.5 Mm3/year.Special attention was also given to the design of the upstream face of the dam in order to confirm its behavior during earthquakes,as the site is considered seismically very active.This dam is equipped with galleries for foundation consolidation grouting.In this paper,an outlook of the surveillance system adopted for the Cerro del (A)guila dam is provided,focusing mainly on the evaluation of the monitoring data and the dam behavior during the first three years of operation.A special mention is also given to the deterministic model performed for the Cerro del (A)guila dam.which has allowed a proper assessment of the structure deformation along this period,especially during events as the first impounding or flushing operations.Such a model enables a proper evaluation of the dam displacements due to permanent loads due to water or thermal effects.In addition,permanent dam body or foundation displacements can also be identified by means of the deterministic model.
Gravity Dam RCC dam monitoring surveillance system
Coret G. Amberg F. Sayah S.M.
Lombardi Engineering Limited, 6648 Minusio, Switzerland, German
国际会议
the 8th International Symposium on Roller Compacted Concrete (RCC) Dams(第八届国际碾压混凝土大坝国际研讨会)
昆明
英文
232-239
2019-11-11（万方平台首次上网日期，不代表论文的发表时间）