Tuyen tap Cdng trinh Hdi nghi Khoa hpc 10 hpc Thiiy khi Todn qudc, Phan Thiit, 2008 163 jilot SO van de tmh toan xa lu thiet ke 6* cac ho chira thuy dien Ha Ngoc Hicn, Doan Xuan Thuy, Le Thu Hoai Vien[.]
Tuyen tap Cdng trinh Hdi nghi Khoa hpc 10 hpc Thiiy Todn qudc, Phan Thiit, 2008 163 jilot SO van de tmh toan xa lu thiet ke 6* cac ho chira thuy dien Ha Ngoc Hicn, Doan Xuan Thuy, Le Thu Hoai Vien Ca hoc, 264 Ddi Cdn, Hd Ndi Tom tat: Viec tinh todn xd lu thiet ke cho cdc hd chira thiiy dien neu khdng tinh den thdi gian thirc te ddng md ciia cdc cua van cd the dan den cdc phuang dn thiit ki cira van, dap trdn khdng phii hgp dnh hudng den an todn ho chira Cdc thi nghiem md hinh vat ly ve cira van, dap trdn thudng cdn dugc lien hdnh thai gian thiet ke ky thiigt va gdy nhieu tdn kem Bdo cdo trinh bdy ket qud nghien ciru tinh todn xd lit thiet ke cho cdc hd chira thiiy dien cd tinh den thdi gian ddng md cira van vd khd ndng du bdo ddng lit den hd Ket qud tinh todn chi rdng ddi vdi cdc liru vuc cd lii len nhanh, mirc nude ddng cua hd phu thugc nhieu vdo thdi gian ddng md cua van vd thai gian du hdo ddng den hd Tu dd, cd the dua cdc phuong dn thiet ke cira van, dap trdn phit hgp Ket qud nghien cuu cd the gdp phdn gidm chi phi thiit ke bdng viec dinh hudng vd gidm bdt quy mo thi nghiem tren md hinh vat ly Abstract: Calculations of discharge release for designed flood of a resen'oir without taking account the opening time of gates could lead to Improper design of the weir or gate sizes Normally, experiments of physical models should be conducted for the technical design phase This paper presents an algorithm for calculation of discharge release for designed flood of a reservoir taking account the opening time between the gates and prediction of inflow The results show that In some cases the water level in the reservoir could be sensitive to these parameters and they should be taken under consideration in design process The results could also contribute to decrease the number of experiments of physical models Mo-dau Viet Nam, gan day hang loat cac hd chira thuy dien tren thugng ngudn cac he thdng sdng da duac thiet ke va xay dung Ngoai cac van de ve mdi trudng, kinh te-xa hdi, van de an loan xa lu cua cac hd chua la van de bet sire quan trgng can dugc nghien ciru than trgng va dua vao cac quy trinh van hanh hd chira Van de an loan xa lu hd chua hen quan den bai toan thiet ke dap Iran, he thdng van xa lii va xac dinh myc nude gia cudng (MNGC) Xac dinh muc nude gia cudng ciia mot hd chira - muc nude Idn nhat ma hd chiia van an loan la van de phuc tap, trude het phu thugc vao cac yeu td kinh te, xa hdi, mdi trudng (giai phdng mat bSng, di dan, hieu qua kinh te, anh hudng mdi trudng ), va cudi ciing la tinh loan kiem tra xa lu vdi cac lii thiet ke Theo cac phuang phap tinh loan thdng thudng, MNGC dugc xac dinh khdng phy thugc vao thdi gian ddng md cua van va kha nang du bao lii den (lii thilt kl dugc cho bilt trude) Tuy nhien, neu tinh den thdi gian ddng md giira cac cua van, kha nang dy bao luu lugng vao hd, cd the nhan dugc ket qua tinh toan la cac MNGC khac Tir dd cd thi thSy rSng, phuang phap tinh loan thong thudng cd the dan den cac phuang an thiet ke khdng phu hgp anh hudng den an loan hd chira Nhu vay, neu bd qua cac ylu to kinh te va mdi trudng, theo cac phuang phap tinh loan thdng thudng, MNGC se phy thugc vao lii thilt kc (do Idn va hinh dang), kha nang xa tdi da cua he thdng cira van va dap Iran (cao do, kich thudc va sd lugng) Bao cao se chi 164 A/