tailieunhanh - Innovative methods for the Kannaviou CFRD in Cyprus

Kannaviou Dam là một cấu trúc đá đổ với một khuôn mặt bê tông (CFRD) và tầm quan trọng tuyệt vời để các nước Síp quản lý chương trình. Đây là lần đầu tiên khuôn mặt đá đổ bê tông đập được xây dựng ở Cyprus, vì vậy nó là quan tâm lớn về kỹ thuật và thứ hai cao nhất với chiều cao 75m. Đập được thành lập trên đá nham thạch âm thanh ở phần thượng nguồn của nó, gần khu vực chân và trên các cạnh của nó và tiền gửi phù sa ở hạ lưu sông sàn thung lũng | Vietnam National Commission On Large Dams Innovative methods for the Kannaviou CFRD in Cyprus Demos Antoniou Water Development Department Government of Cyprus Nicosia Cyprus E-mail Introduction Kannaviou Dam is a rockfill structure with a concrete face CFRD and is of great importance to the Cyprus water management programme. It is the first Concrete Face Rockfill Dam built in Cyprus so it is of great technical interest and is the second highest with 75m height. The dam is founded on sound lava rock at the upstream part of it near the plinth area and on its sides and on alluvial deposits in the river valley floor downstream. A grout curtain 40m deep was constructed along the plinth with the purpose to control seepages through the dam foundations. Construction of the dam commenced on September 2000 and was completed on February 2006. The reservoir of capacity 18 MCM was impounded on 28 October 2005 The diversion tunnel and draw off works are located on the right abutment and consist of a 340m long tunnel working as a diversion tunnel during construction with two pipelines 700 and 1000mm diameter and valves installed for water releases from the reservoir. Three intake points at different levels are installed for operation at various reservoir levels. The spillway is located in a large excavation through the terrace deposits and rock on the right abutment west . The spillway is free discharge structure with a 60 m long ducks bill ogee weir crest. The water discharges into a flat apron area downstream the weir before it passes into an inclined chute 86m long x 20m wide which terminates in a 30o 45o deflector bucket energy dissipater. The spillway is capable of discharging the probable maximum flood which has a peak discharge of 750m3 sec. The innovative methods employed in the construction of the face slab with the use of the self climbing top shutter equipped with a side concrete discharger and a rail system for fast transport along the crest