khay thdp nhdt din dinh cong trinh.
Ph\ll\lC 2 -Mire BAo DAM PHve vv e6NG TRiNH THUV LQI
(TheaQCVN 04-05-2012)
D6i tuvng ph\lc Mile dam baa ph\lc Y\I thea
Y\I clla cang clip cang trinh, % Cac yen cin khac
trinh DB I II III IV
I. Tum ruQng 85 85 85 85 75
Til MlrCbao dfun cho cac doi tuqng c6 nhu
80 cdu tieu nuac kMc (khu dan cu, do thi,
2.Tieu cho nong
90 90 90 d~ khu cong nghi~p,...) c6 m\it trong h~
-
nghi~p n th6ng tMy lqi do clip c6 thAmquy6n
quy dinh nhung khong duqc thAphan
90 mlrCdam bao tieu cho nong nghi~p
3. HQSlrd\lng Khi c6SI!chenh l~ch v8 nuac dung chonuac tuai d~ Theo ch~ dQtum pMt di~n va tum trong ngay phai lfun nuac tuai d~ Theo ch~ dQtum pMt di~n va tum trong ngay phai lfun
them h6 di6u ti~t ngay dem d~ di6u ti~t phat di~n
l(li 4. Cap nuac:
---,--"_._- --- ..".'--.--'. ---~----_._- ---
TUiiTiigrigcIjl-tiIih toiinc6-iiini ilru-- luqng 16n nhAt,luu luqng trung binh a) Khong cho ngay ho\ic trung binh thang ... do cM phep gian dO(ID
95 95 95 95 95 dAutu quy djnh va cApchoCCJquanho\ic gifun yeu thi~t k~. Cho phep nang mlrc bao dam ho\ic gifun yeu thi~t k~. Cho phep nang mlrc bao dam
cdu cApnuac cao han quy dinh tren n~u c6 dil ngu6n nuac clip va duqc cM dAutu chAp
-
thu~.
--- -_.~---_.. ---,. 0 __.-__ .-
--- ---,.
-M(icd~tliieu-nu&c;tl-i~gianciiojlhejl- b) Khong cho gian dO(lncApnuac can Clrvao yeu cAu phep gian dO(ln C\lth~ cila hQdung nuac do cM dAutu nhung duqc phep 90 90 90 90 90 quy djnh va cApcho co quan thi~t k~. gifun yeu cdu cAp Cho phep nang mlrCbao dam cao han
nuac quy djnh tren n~u c6 dil ngu6n nuac
cApva duqc cM dAutu chApthu~n.
1--,--- --- ---_...- --- --- --- ---,_.,---,-_.,-
c) Cho phep gian
Cho phep nang mlrc bao dfun cao han dO(lnthai gian
85 85 85 85 80 quy dinh tren n~u c6 dil ngu6n nuacngiin va giam ngiin va giam
Phy Iyc 3.urn LU"QNG,MVC NU"aC LON NHAT, NH6 NHAT TRItT Kt vAKItM TRA CONG TRINH THUV LQI
• LlIU Iw;mg, m\l'c mrac 16'11nhAt de tinh toan thiS! ke va kiem Ira 6n dinh, ket du, nan mong, nang l\l'cxa mrac cua cae cong trinh thuy IQ'1troo song va ven blr, cac oong trinh lren tuyen chiu ap, cac cong trinh trong h~ thOng tuOOtieu khiaphia thlIgng nguiln chrra c6 cong trinh diau tiet dong chay dlIQ'Cxac dinh theo bang PL 3-1.
LlIU 11Igng, m\l'cnlIac thAp nhAt de tinh toan 6n dinh ket cAu cong trinh, nan m6ng dlIqc quy djnh theo bang PL 3-2.
Bang PL 3-1. Tin suAt 11mluvng, mve nwc 1611 nhit thiEt ke va idEm tra cling trlnh thuy lqi
Lo~ cong trinh Cap thiet ke
D~cbW I II III IV
I. C\lm cong trinh dAumoi cac lo~i(trir congtrinh diu mOi viIng triau); cong trinh dannlIac