The study of drainage and water pumping of spillway and hydropower plant foundation in Sangtuda 2 project, Tajikistan

سال انتشار: 1392
محل انتشار: اولین کنفرانس ملی مهندسی ژئوتکنیک
کد COI اختصاصی: GEOTEC01_675
زبان مقاله: انگلیسی
تعداد مشاهده: 1356

نویسندگان

Site geologist, kohrang III concrete dame project, Sabir co

Geology & Hydrology Consulting Norbert Co., Switzerland

چکیده

Seepage of dam foundation area and reservoirs are considerable problems that most of these structuresare involved with. Escape of water from reservoirs, the possibility to create high pressure (upliftpressure), underground water level control, increasing the volume of water pumping from project areaand consequently increasing administrative costs and reducing efficiency are the most importantproblems. Sangtuda 2 Dam and Power plant Project is one of the ninth serial dams that are constructedover the Vakhsh River, one of the Amudarya branches. This dam is under construction, due to its locationon the lime stone layers and due to the high karstification and Tectonics situation at run time encounteredwith lots of water leakage and overflow in spillway and power plant area. Water outflow increased up to8 cubic meters per second at the time being. The water rate increase administrative costs (due to highcosts of pumping water from the pit, sharp reduction in work efficiency an...). This article reviews thestatus of geology, hydrological, Tectonic and geotectonic in project area. Maximum water volumeestimation in the possible ranges is established numerically by software to achieve perfect solutions.Solving methods and reviews the results indicates the need to pump about 10 cubic meters per secondfrom the plant bed (level 450).

کلیدواژه ها

Sangtuda2, Tajikistan, pumping, Karistification, leakage

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