Seite - 504 - in Book of Full Papers - Symposium Hydro Engineering

COUNTERMEASURE OF SEDIMENTATION PROBLEM ON WONOGIRI RESERVOIR, INDONESIA1) Graita SUTADI INACOLD Yoga Darmawan DIPARINDRA Bengawan Solo River Basin Authority, Indonesian Ministry of Public Works and Housing Airlangga MARDJONO Indonesian Dam Centre, Indonesian Ministry of Public Works and Housing Nisa Andan RESTUTI Indonesian Dam Safety Unit, Indonesian Ministry of Public Works and Housing Duki MALINDO Bengawan Solo River Basin Authority, Indonesian Ministry of Public Works and Housing ABSTRACT The Wonogiri Dam should continue to contribute to stabilization of people’s livelihood as well as improvement of social welfare at least in coming 100 years. This goal will be achieved only in the way to secure and maintain the expected function of the Wonogiri reservoir in terms of flood control, irrigation water, domestic and industrial water supply and hydropower generation. The Wonogiri reservoir will be separated by closure dike into two reservoirs, namely a Sediment Storage Reservoir with New Gates and a large main Wonogiri Reservoir, and operated independently. In construction of new dike with saturated soils with soft clay, low bearing capacity and excessive settlement, the ground improvement technique using COMMISSION INTERNATIONALE DES GRANDS BARRAGES ------- VINGT-SIXIÈME CONGRÈS DES GRANDS BARRAGES Autriche, juillet 2018 ------- 504