- V6i dl;lllgso db OOu hiOO(343b): ta xem than tuimg dugc chOn ch(it vao ban day tuimg, va d6 don gian trong tiOOtoan ta b6 qua cac tm trQng tMng dUng mc d\lIlg len than
Ph,l,c 1 PHVLVC CHUNG
.Ph, I,e 1-1.xAc BJNH cAPCONG TRiNH THiJY LC}I
cAp cUa cling trinh thliy 19i thUQCcling trinh cM y~u xae dinh theo bang PLI-I;
cAp cling trinh thliy 19i thuQc cling trinh thfr y~u va cling trlnh ~ thOi xac djnh theo bangPLI-2.
Biog PLI-l-l. Pbao cip cOog triob tbliy lqi (BanI! I OCVN 04-05-2012)
Lofi cfipthiSt kS
IT LOllicong trinh thliy lQ'i ncSn Djc
I II III IV
bi~
I Di~ tich du(,YCtum hojc di~n rich - > 50 > 10+ 50 > 2+ 10 :'S 10 tv nhien khu tieu, 103ha
2 Ho chfra nu6c c6 dung tleh frog vm >1000 >200+1000 >20+200 ~3+20 <3 MNDBT 10, 6m3
Cong triob cApnguon nuac chua Xli
3 Iycho cae ngBnh san xudt khlic c6 >20 >10+20 >2+ 10 .:;:2 -
luu luqng, m3/s A > 100 >70 + 100 >25 +70 >10+25 s;1O 4 D~p v~t li~u ddt, ddt - da c6 chieu B - > 35 + 75 >15 + 35 >8 +15 s;8 eao 16n nhdt, m C - - >15 + 25 >5 +15 s;5 . A > 100 >60+ 100. >25 +60 . >10+25 S; 10 D~p be tong, be tong cat thep cae
5 10lliva cae oong trinh thliy Iqi chju B - >25 + 50 >10 + 25 >5 + 10 s;5
ap khac c6 chieu cao, m C - - >10 + 20 >5 + 10 s;5
A - >25 + 40 >15 + 25 >8 + 15 s;8
6 Tuimg chiin c6 ehieu eao, m B - - >12 + 20 >5 + 12 s;5
C - - > 10 + 15 >4 + 10 s;4
CHUTHICH:
J)Ddt n€n chia thl:mh3nhOm di€n hinh:
- Nh6m A: n€n la da ;
- Nh6m B: n€n la ddt cat, ddt han tho, ddt set iTtrr;mg thai cling vanwcling;
- Nh6m C:n€n la ddt set bao haa nwc iTtrr;mgthai deo;
2) Chi€u cao cong trinh dur;Jctinh nhU'sau:
- ViTid{tp v{tt li~u ddt, ddt - da: chi€u cao tinh tit m(it n€n tMp nMt sau khi d(m m6ng (/chong k€ phdn chi€u cao chan khay) din dinh d{tp;
- Voi d~p be tong cae 10(l.iva cae eong trinh xay due ehju ap khae: ehieu eao tinh tir day chilo khay thilp
Ghi chu: . .• ~ • _~ l.cAp c6ng trlnh thuy lQi x8c dinh theo bang PL 1-1-1 dug<:xem xet glam xuong mQt cap
(trir c6ng trinh cAp IV) trong cae tnrimg hqp sau:. .' ,
a) Khi cAp c6ng trlnh x8c dinh theo chi!u cao ctap thAp han cAp xac djnh theo dung tich ho
aml!C nuac dling blnh thuimg; ,
b) Cac h{l11gm\lC cua c6ng trlnh cAp ~ biet va cAp 1 kh6ng nim trong tuyen chiu lip II,rC nuac (trir nha may thuy dien, duimg 6ng dful nuac c6 ap, 6ng din nuac vao tube bin, b! lip Il!c, thap di!u ap); (adsbygoogle = window.adsbygoogle || []).push({});
c) Cac c6ng trinh c6 thai gian khai thae kh6ng qua 10 nAm;
d) Cae c6ng trlnh thuy trong c\lm nAng luqng; Mth6ng kenh chinh va c6ng trinh tren kenh chinh ph\lc V\I c~ nuac va tieu mrac cho n6ng nghi~, khi cAn phlii tu ba, sUa chtla kh6ng lam anh hu6ng dang k! den v~ hanh bloh thuimg cua oong trinh <tAum6i thuy lQi. .
2. cAp c6ng trinh thuy IQ'ixae dinh theo bang PL 1-1-1 duQ'Cxem xet nang len m(\t clip (trir c6ng trinh cAp ~c biet) n~u m(\t trong cae h{l11gm\lc c6ng trinh chinh xay ra sl! c6 rili ro c6 th~ gay thiet h(li to 16n v! kinh t~ - xi h(\i va m6i tnrimg ah(lluu.
3.Tron~ sa d5 khai thae b~c thang, n~u cAp coo oong trloh h5 chUa mrac dang xem xet <tAu til xlly dl,rDgthap han cAp coo c6ng trinh dang khai thac ab~c tren, dnh tolin thi~ k~ phai dam bao kha nAng xlllii ciia c6ng trlnh b~ du6'i bing luu luqng xa Iii (xa Iii thi& k~ va xli Iii ki!m tra) coo c6ng trlnh b~c tren c(\ng vm luu luqng Iiiakhu giua theo cAp cua c6ng trinh b~c dum.
. 4.Cac c6ng trinh xlly dl,rDgthu(\c chuyen n~ khac c6 m~ trong thimh phAn dl! lin thuy lQi h~c c6ng trinh thuy lQi thi~t ke c6 Sl! giao elit vm cac c6ng trinh khac hien c6 (duang bQ, duang sAt v. v ...), khi xae djnh cAp c6ng trinh thuy lQi pMi d6i chi~u vcri cAp cua cae oong trinh c6 lien quan va chQn cAp cao han da thi~t k~.
5.cAp cua c6ng trlnh thuy IQ'igiao cAt vai de bao v~ phOng ch6ng Iii duQ'c xac djnh nhu cAp cua oong trlnh chiu ap nhung kh6ng duQ'c thAp han cAp thi~t k~ va tieu chuAn an toan cua
tuy~n de d6. -
6.cAp cua c6ng trinh t(lm thai ph\lC V\l thi c6ng duQ'c philp nang len cAp caa han quy dinh
abang 2 nhung kh6ng cao han cAp cua c6ng trlnh chloh n~u xay ra SI!c6 c6 tha dful d~n cac Mu qua sau:
a) Lam mAt an toan cho cac c6ng trlnh lau dai dang xlly dl,rDgda dang;
b) C6 th! gay ra tan thAt 16'nv! kinht~ - xi h(\i va m6i tnrimg a h(lluu. Thi~t h(li v~ v~t chAt nau xay ra Sl! c6 16n han nhi~u so vai v6n ddu til them cho c6ng trlnh t(Im thai;
c) DAy lui thai gian dua c6ng trinh vao khai thac lam giam hieu qua dAu til.
Bang PL 1-1-2. Quan h~ giiia cAp cua cling trinh thuy Iflivm cAp cua cling trinh chu y~u, thil' y~u va cling trinh t,m thOi trong dng mqt he th6ng cling trinh dAu mai ho,c h~
thang din •
cAp c6ng trinh D(ic I II III IV
bi~t
cAp c6ng trinh cM y~u D(ic I II III IV
biet
Cap c6ng trlnh thll yeu I II III IV IV
Ph\ll\lC 1-2 -MircBAo BAM PHVC VV C()NG TRiNH THiJY L<}I
Bi\i tlJqDg ph\lc v\I Mli'c dim bio ph\lc V\I theocAp cong trinh, %
Cac yen cAn khac cua cong trinb
DB I II III IV
I. Tum ruQng 85 85 85 85 75
Til Muc bao dlim cho cac dbi tuQllg c6 nhu cAu tieu nuUc khac (khu dlln cu, do thj, khu 2. Tieu cho nong 80 cong nghi~p, ...) c6 ~t trong h~ th6ng thliy
nghi~p - 90 90 90 dSn I(ri do cAp c6 thftm quySn quy djnh nhung
90 khong duQ'CthAp hem muc dlim bao tieu cho nongnghiw
3. HQ sir dllng nu6'c Khi c6 S\l'chenh I~h ve nuUc dimg cho
tum dS phRt di~ri . Thee chB dQ tum phat di~ va tum trong ngliy phl\i llim them h6 diSu tiBt ngliy demdS diSu tiSt lfi . 4. CAp nu6'c:
Luu IUQ'IIgcAp tinh toAn c6 thS Ia Iuu IUQIIg Ian nhAt, luu IUQIlgtrung bloh ngliy hoJc a) Khong cho phep gian truJ binh thang ... do chli <tAutu quy dinh do;m hoJc gilim yeu cAu 95 95 95 95 95 va p cho co quan thiSt kS. Cho phc.\pnllng (adsbygoogle = window.adsbygoogle || []).push({});
cAp nuac mirc bao <tlimcao hem quy dinh tren nSu c6
dli ngu6n nu6'c cAp va duQ'Cchli (fAutu chAp thu~.
. Mirc dQ thiBu nu6'c, thCrigian cho phc.\p~ian do;m cAp nuUc can cu vao yeu cAuCIIthe b) Kh6ng cho phc.\pgian clia hQ dung nuac do cM <tAutu quy djnh
do;m nhun~ duQ'c phep 90 90 90 90 90 va cAp cho co quan thiBt kS. Cho phep nllng gilim yeu cau cAp nu6'c mirc bao <tlimcao hem quy djnh tren nSu c6 dli ngu6n nu6'c cAp va duQ'Cchli dAu tu chAp thu~.
c) Cho phep gian do;m Cho phep nllng mirc bao dlim cao hem quy
thCrigian ngAn va gilim. ,. 85 85 85 85 80 djnh tri!n nSu c6 dli ngu6n nuac cAp va duQ'Cchli <tAutu chAp th~.
Phy lye 1-3.LUlJ LUQNG, MV'c Nu'ac LON NHAT, NBc) NHAT TRItT Kt vA KItM
TRA C6NG TRiNH THiJY
- LUll luqng, m\fCnuoc Ian nbit de tlnh toan thiet ke va kiem tra An djnh, k~t cdll, nen mong, nang 1\fCxi nuae CllacAec6ng trlnb thuy lqi tren sang va ven b<J,cAecong trlnb tren tuy~ chiu ap, cac cong trinh trong he thAngtum tieu khiaphia thuqng nguAnchua cOcong trlnh dieu ti~t dong chay duQ'Cxac dinb thea bang PL 1-3-1.
LUll luqng, mJ,rcnuae thdp nbit de tfnb toan An dinb kit cdu c6ng trlnb, n~n m6ng duQ'Cquy dinb theo bang PLI. 3-2.
BiDg PL 1-3-1. TADsuit luu hn;rng, my.: Du6'eInDhit thiSt ki va kifm tra ellDg trl h h'D t BV IalI .
Cap thietke
LO\lic6ng trinh D~c
bie! I II III IV
1. C\Ifficon¥ trinb dau moi cac lo(li(trilcong trlnh dAumoi vung tri~u); cong trinh dftn nuae qua song suAicua he thAngtum tieu nong nghiep:
• TAnsuit th16tk6,% --- --- ---
0,10 0,50 1,00 1,50 2,00
1---_.__ ._----_. __ ._._---- ---- _._._.- -- 67
Tuang (mg vm chu kYI~p I\li,nllm 1000 200 100 50
..---.-=---;r--..,---.---.- ..---.---_•..-•..._.._----:- ._.._._--::- _.._-- ._--_...-
. Tan suat kiem tra,% 0,Q2 0,10 0,20 0,50 1,0
"'_•._----"-_._--_._---_.--_._-_. __._---_.__.'--,---.--_._--_._--_._- ..__._--- '"'---_.- ._-._---,,--- .._--_..__.•
Tuang (mg voi chu kYI~p I\li,nlim 5000 I 500 200 100
000 2. Cong trinb dau m6i vilng tri~u; cong trinh
va he thAngdftn nuoc lien quan trong he thAng tum tieu nong nghiep (tm cong trinh din nuae qua song suAiCllahe th6ngtuaitieu nong nghiep):
-.---.----.-.---.;e---r-;r--- ..---.----. ---.-..---:c--:- ---_"7" ._--- _._--_._- '-'--._-
- Tan suitt thiet ke,% 0,20 0,50 1,00 1,50 2,00
.----TuOiig (mg vai cli;; kil~pI~;-nli.;--- "--_.,----_ .•--- ----.joo ---_._- ----_.
500 200 67 50
----...---,~---_.- -_.. (adsbygoogle = window.adsbygoogle || []).push({});
0,20 0,50 ----:- _._---
. Tan sual kiem tra,% 0,10 1,00 1,50
._._-_._---"---_._---_. __._-_._--- •._---_.•- -_.- ---:- ----_.-.- •.-"-_._----
Tuang (mg voi chu kYI~pI\li,nam 1000 500 200 100 67
CHUTIllCH:
I) LUll luqng, mJ,rcnuoc Ian nhdt trong ~p hQ'Pth6ng ke la lUllhrqng, m\lc nuac co trj sA Ian nhdt xudt hi~n trong t(mg nllm. Chdt luqng cua chu6i thAng ke (dg dai, tinh d\li bi~u, thi:ri gilUJ thAng ke v.v...) cAnphai thoa mlin cac yeu cAu quy djnh trong cac tieu chudn tuang (mg. Cac sb lieu cAnduQ'Cxu Iy v~ cung mgt di~u kien !rUae khi ti~n hanh tinb toan;
2) N~ua phia thuqng nllu6n co nhiing tic dgng llim thay dbi di~u ki~n hinh thanh dong chay ho~c co cong trinh di~u tiet thi khi xac djnh cac y~u tA quy dinh trong di~u nay cAnphai k~ d~n kha nling di~u chinh l\li dong chay cua cac clIng trinh do;
qua khli nang di8u tiet cua cong trlnh d6;
4) NhUng cong trinh thuy lQi cdp $c bi~t nAm trong nh6m s6 I cua ban!. nay, kbi c6lu~n chimg tin c~y va duQ'c cM ddu tll chdp thu~, Iii ki~m tra c6 th~ tinh vai tAn suat 0,0 I%(tllO'llg img v6i chu kY l\ip I\li 10 000 nam) ho\ic Iii CIlCh\ID.
Ghi chu:
1. Khi xac dinh cac chi lieu chinh v8 dong chliy bAng s6 Ii~u th6ng ke ho\ic tinh toan, cAn dll blio kba nang di6n bien cua cac chi tieu d6 trong tllO'llg lai sau kbi xay dvng d~ c6 giai phap kY thu~t va quyet dinh dung din nhAm blio dam an toan cho cong trlnh va nang cao hi~u qua d3u tll.
2. MIlC nuac 16'nnhdt d~ tinh toan che dQ kbai thac cua cac cong trlnh cdp nuOc tv chliy tit h3, d~p dang binh thuang duQ'c xac dinh theo bang PLl-3-I, trir trllang hQ'P c6 nhUng quy dinh kbong cho phep kbai thac crcac mllc nuac nay d~ phong ngira nii ro c6 th~ gay ra cho h\l hm, ho\ic tnii v6i nhUng quy dinh v8 blio v~ de di8u. Trong trllang hQ'Pd6 ccr quan tu vdn thiet ke phai kien nghi muc nuac kbai thac an toan d~ cdp c6 thAm quy8n quyet djnh.
3. Tdn sudt mllc nuac 16'nnhdt crsong nh~ nuac tieu d~ tinh toan che dQ kbai thac cho cac cong trlnh tieu kbong 16'nhO'llcac tri s6 quy dinh sau day:
a) Tieu cho nong nghi~p bAng bi~n phap tv chliy ho\ic dQng Illc: tAn sudt thiet ke 10 % dam bao tieu duQ'Cdu luu IUQ'Dgthiet ke;
b) Tieu cho cac d6i tUQ'Dgkbac nAm trong h~ th6ng tMy IQ'i (kbu dan CU, do thi, cong nghi~p v.v ...) theo quy dinh cua cM ddu tu va ccr quan quan Iy nhung kbong 16'nhO'll.tAnsudt quy dinh tieu cho nong nghi~p.
Bang PL 1-3-2. Luu lllQ'Dg, myoc nmYc thAp nhAt d~ tinh toan 6n dinh k@tcAn dIng trinh,
" nen Mong" ,
Tan suat luu IUQ'Dg,Ml!C nuac thap nhat,
LO\li cong trinh cAp cong trlnh %
Thiet ke Kiem tra
D\ic bi~t,I, II, Ml!c nuac Ml!c nuac thao C\IDthAp
1. H6 chua III va IV ch~t nhAt d~ sua chUa, n\lo vet
V.v...
D\ic bi~t 99
...•.•.... -.'.--...._....•....__...•...__ ._----.-.._--_._--
I 97
MIlC mrac trung binh
.._---_.__._...•._---_.-- ..._--_.__._._-_._-_.•.•.__._-_._-_..
2. Cong trlnh tren II 95 ngay thdp nhAt dli xay ra .
song t\li tuyen xay dl,l'Dgcong (adsbygoogle = window.adsbygoogle || []).push({});
---...._...•.-...__.__._--'._.-.-..."....•--_._._._-_.._-_.•..__.•....--_._-_.•._-- trinh
III 95
.._--_._._" ...._---_.__.- ._---"--_.__.._----
IV 90
3. H~ th6ng thoat Ml!c nuOc
nuac va cong trlnh . D\ic bi~t, I,11, thAp nhAt quy MIlC nuac thao C\IDd~ lien quan trong h~ III va IV djnh trong sua chita, n\lo vet v.v ...
CHUTIDCH:
I) LUll luQ'llg, m\lC nuac thAp nhAt dung trong t~p hQ'Pth3ng ke lalUll IUQ'llg,m\lC nuac co tri s3 be nhAt xuAt hiQn timg nam;
2) Khi cac hQ dung nuac aha lUll yeu cAu phili bao dam lUll IUQ'llgt3i thieu Ian hanlUll IUQ'llg theo quy dinh abang 5 thi lUll iUQ'llgthAp nhat duge chQn theo lUll IUQ'llgt3i thieu do. M\lc nuac thAp nhAt tinh toan hIC nay chinh la m\lC nuac (mg vm lUll IUQ'llgt3i thieu noi tren; . 3) Khi thiet ke cac cong trinh til cAp Itra len phili xet den ~a nang m\lc nuac nay co the h\l thAp han do long ddn h\l lUll bi xoi sau ho~c do ilnh huang dieu tiet l\li cua cac cong trinh khllc trong b~c thang se dugc xiiy d\lllg tiep theo.
Phylyc 1-4. LUU LlJQNG MVC NlJa~LON}~HA! DE TmET KtcA~ CONG TRiNH
TAM TH<n PHVC VV CONG TAC DAN DONG, C~ DONG
TAn suAt'm\lc nuac va lUll IUQ'llgIan nhAt de thiet ke cae clIng trinh l\lffi thm ph\lc V\l ddn dong thi cong (de quai, kenh ddn ... ), ch~ dong khong Ian han tri 56quy dinh abang PL4-1 va PL4-2.
Bang PL 1-4-1. TAn suit hi'll hrqng va ml}"CntnYc 1011nhit iJ~thi@t k@cac cong tnnh !(lm thiri phyc vy cong tac dAn dong thi cong
TAn suAt hl'lllJll1llg, mfC nwc 1011nhit iJ~thi~t k~ cong tnnh cip cong tnnh t\lm thiri phyc vy dan dong thi cong, khong 1011h01l,
%
DAn dong trung mqt mua DAn dong til' hai mua kho tra
kho len
D~c biQt 5 2
I 10 5
II, III,N 10 10
CHUTillCH:
1) LUll IUQ'llg,m\lc nuac Ian nhAt trong ~p hQ'PthAng ke lalUll IUQ"ng,m\lC nuac ttrang (mg vai tri sA Ian nhAt trong cac lUll IUQ"ngIan nhAt xuAt hiQn trong thai dO\ln ddn dong thi con~. Mila ddn dong la thai gian trong nam yeu cAu cong trinh ph\lc V\l cong tac ddn dong cAn phai ton t(li ch~c