1.GING KHI
GII THIU MT S CNG TRNH THU NC v CU TO C BN NHM 5GV. NGUYN NGC
THIPDANH SCH THNH VIN 1. Nguyn Thi Th H 2. Nguyn Th Kim Lin 3. Phan
Nguyn Xun Mai 4. Hunh Cng Minh 5. Nguyn Th Lan TinPhn Loi Cng Trnh
Thu Nc
C nhiu cch phn loi cng trnh thu nc khc nhauTM TT NI DUNG THUYT
TRNHI. Cng trnh thu nc ngmCc bc thit kPhn loiGing khiGing khoanng
hm thu ncCng trnh thu nc mch lCng trnh thu nc thmII. Cng trnh thu
nc mtCc c im c trng cho cng trnh thu nc mt cn ch Phn loi1. CTTN gn
biu kin p dngLoi phn liLoi kt hpLoi dng mng dnMt s b phn chnh2.
CTTN xa biu kin p dngDng ng t chyDng ng Xi phngXD trc tip trn lng
sngCc b phn c trng Sc x ng t chy v ngn thu ngn htIII. Mt s cng trnh
thu nc khcCng trnh thu nc ni di ngCTTN kiu vnhCTTN sng cnc im CTTN
min niCTTN h mCTTN binCTNN nc maThu nc ma t mi nhThu nc ma t mt
tIV. MT S V D V CHN CNG TRNH THU NCI. CNG TRNH THU NC NGM Cc bc
thit k:
Da vo ti liu khoan thm d, ti liu a cht thy vn thu thp cc thng
tin c bn v TT yu cu.Chn tng cha nc v su khai thc.Chn kiu cng trnh
thu nc.T lu lng Yu cu chn quy m v s lng CT thu.Xc nh thng s hng mc
trong thit k cng trnh thu.Xc nh li kh nng cp nc ca CT sau khi xy
xong.(kim tra hot ng ca CT)Thit k phn cch li, bo v.( nh che chn
ct..)
1. GING KHICu to ging khi thu nc tng y
Thnh gingTng lc y gingNn ging8a. Thnh ging Thng c dng hnh tr trn
hoc hnh chp ct, vt liu xy dng c th l gch v xi mng, ng b tng. Cao hn
nn t t nht 0.8m
b. Nn gingc b tr dc, thot nc c chiu rng t nht 1.5m. Xung quanh
ging chn st rng 0.5m v su khng t hn 1m, cn b tr cao hn nn t.
c. Ging thm t u ng hm. nhng v tr ng hm i hng v trn cc on thng c
cch nhau 50m li t mt ging thm. b. Phn thu nc
ng hm kiu ng hoc hnh lang thu nc.ng knh trong D>200mmChiu dy
lp nc =0.4Dt vung gc vi hng chuyn ng ca nc ngm v dc v pha ging tp
trung.Thu nc t tng cha => chuyn lng nc ny v ging tp trung.
4. CNG TRNH THU NC MT LChiu chuyn ng v p lc nc ngm do th nm ca
tng cha nc quyt nh. Nu tng cha nc nm l ra sn i hoc sn ni, nc ngm s
t y l ra ngoi v chy xung. Hoc phun ln nu c p lc.
S Ging Khoan
ng LngMing Gingng vchng Lc14b. ng vch L cc ng thp khng g ni li
vi nhau bng mt bch, ren hoc hn. Ngoi ra cn s dng ng nha C nhim v
chng nhim bn v st l ging. Bo v ng trong ging. Khong trng gia ng vch
v thnh ging phi c chn k bng b tng hoc t st vin 30mm.ng vch cao hn
nn t my bm hoc mt t 0.3m163. NG HM THU NCKhi tng cha nc mng, li nm
nng th s dng cc cng trnh thu kiu ging khoan v ging khi khng hp l
=> dng ng hm thu nc.
19Cu to:
Ging thmng thu ncGing tp trunga. Ging tp trung thu gom nc t ng
hm chy v. t my bm thu ncPhn loi phn thu nc
Cng Tnh Thu Nc Ngm Mch L
Hc LcHc Lcp chnLp thmLp ngp ncLp khng thmThanCtu thu ncCNG TRNH
THU NC LOI CHY XUNG
Cng trnh thu nc ngm loi phun lnRnh thot nc b mtSt nn chtVi cch
nc Ct lcng khoan l thu nc Li lcSi5.CNG TRNH THU NC THM Nu cu to a
cht ca t ven sng h hoc di lng sng h l loi t thm nc th nc t sng h s
thm vo cc lp t ny lm cho n bo ha nc, to thnh dng nc ngm chuyn ng
cng chiu vi nc sng nhng chm hn nhiu.Nu t cng trnh thu ly nc t cc lp
t ny tc l gin tip thu nc mt nh s dng tnh thm nc ca t.
Phn loi II. CNG TRNH THU NC MT:Cc c im c trng cho cng trnh thu
nc mt cn ch :T l lu lng thu v lu lng nc ngunCh thy vn: Q,V, triu,
cht lng nc..Dng mt ct ca ngunMc nc cao nht, thp nhtCu to a cht ca b
ngun ncMc ch s dng khc ca ngun khai thcDNG MT CT NGANG CA SNG
Phn loi1. Cng trnh thu nc gn b
Dng cho nn t, b sng khng c chc chn lm phi xy dng li su vo trong
b, b tr tch ring so vi cng trnh thuCng trnh thu nc gn b loi phn
liCTTN Gn b loi kt hp
T miPhi miT mi
Loi mng dnLoi cng trnh ny ang c mt s nh my nc ta s dng thu nc
sng. y cng l mt dng ca cng trnh thu nc kiu vnh. Thng p dng cho ngun
c mt giao thng thy ln, nc c, nn b sng yu.Mt s b phn chnh
Song li chn rc
Thit b co rc v song chn rc
2. Cng trnh thu nc xa b:
Phn loia. Dng ng t chy
b. Dng ng xi phngKhi vic xy dng v qun l ng t chy gp kh khn th n
c thay th bng ng xi phng.
Vic mi ng xi phng c thc hin bng bm chn khng hoc bm tiac. XD trc
tip lng sng
My bm thng c dng cng trnh ny l bm trc ng hoc bm chmCc b phn c
trng:Sc x ng t chy v ngn thu ngn htS hot ng vn hnh sc x
III. Mt s cng trnh thu khc1. Cng trnh thu nc ni di ngLoi cng
trnh ny ch ng dng cho cc cng trnh cp nc tm thi vi lu lng nh
Nguyn l: xe gong c bnh xe c th trt trn b sng khi mc nc ln hoc
xung
Nhc im: Ch p dng khi my bm cp mt c p lc nh, b sng thoi2. Cng
trnh thu nc kiu vnhng dng: cc sng ln ,nc c,nhiu vt tri.Phn loi: 2
loi -Vnh nc chy thun dng: dk p dng: t vt tri, nc c -Vnh nc chy ngc
dng: dk p dng: ngc li
3.Cng trnh thu nc cc sng cnPhng php: Nng cao mc nc sng ti ch t
cng trnh.C 2 bin php chnh: 4. c im cc cng trnh thu nc min ni
Sng min ni c c nh,vn tc nc chy ln,nhiu vt tri,dng chy khng n
nh,mc nc tht thng.
Bin php:gia c ca thu nc 5. Cng trnh thu nc h mCht lng tt ,tr lng
ln,thay i theo maV tr t cng trnh thu nn ,su cn thit,khng gy xi l
b.Cng trnh thu nc thng dng loi xa b.
6. Cng trnh thu nc binPhc v ven binCa thu nc b tr di mc nc thp
nht.Vt liu c tnh chng mn cao.7. Thu nc t ngun nc maa. Thu nc ma t
mi nh
b. Thu nc ma t mt t
nhng vng kh hn c lng ma t,ngi ta dng tm phng bng cht do, hoc nha
ng ph ln t thu nc.(tng din tch thu nc ma) dc ca mt t ln => gim c
lng tht thot nc do bc hi v thmIV. MT S V D V CHN CNG TRNH THU
NC
