ddd

A) ASSAINISSEMENT:

1) GENERALITE:

La prsente note de calcul traite lassainissement des des 500 logements sociaux HAMAMAT wilaya d'ALGER , qui permet le calcul des diamtres , des collecteurs lvacuation des eaux uses ainsi que les eaux pluviales vers le rejet ( rseau existant ) .

2) CHOIX DU SYSTEME:

Le collecteur existant est le type unitaire ce qui amne adapter le mme type pour notre projet; dont lequel le dbit des eaux uses est ngligeable par rapport au dbit des eaux pluviales.

3) METHODE DE CALCUL :

Les dbits des eaux pluviales sont estimes partir de la mthode dite rationnelle qui est donnes par la formule suivante

Q = C . I . A Q : dbit dapport dun tronon ( l/s)

C : coefficient de ruissellement ( 0.60 )

A : air du bassin versant

I : intensit pluviomtrique = 160l/s/ha

4 ) DIMENTIONNEMENT DES CONDUITES

Les collecteurs sont dimensionns par la formule de MANNING-STRICKLER

V= 60 Rh 3/4 J1/2

V : vitesse dcoulement

Rh : rayon hydraulique

J : pente du radierTABLEAU DE CALCUL DES EAUX PLUVIALES

ASSAINISSEMENT 500 LOGTS

partielle de ruiss. eaux pluv.QpPenteDiam.QpsVpsVrH

Tronon( ha )( ha )CrQp (l/s,ha)( l/s)( m/m)( mm)( l/s )( m/s)( m/s )( mm )

R1-R70,63000,63000,6018068,040,1268300 216,44 3,063,12 163,72

R3-R60,14000,14000,6018015,120,0836300 175,74 2,491,62 57,35

R4-R60,16000,16000,6018017,280,0049300 42,55 0,600,56 133,90

R6-R70,11000,41000,6018044,280,0159300 76,64 1,081,10 163,72

R7-R80,10001,14000,60180123,120,0632300 152,81 2,162,40 203,86

R8-R140,08001,22000,60180131,760,0978300 190,09 2,692,87 183,38

R9-R140,28000,28000,6018030,240,005300 42,98 0,610,65 185,20

R14-R390,15001,65000,60180178,200,1507400 520,50 4,143,72 162,46

R15- R190,18000,18000,6018019,440,034300 112,08 1,591,22 84,03

R19-R280,35000,53000,6018057,240,005400 94,81 0,750,78 224,15

R23-R280,40000,40000,6018043,200,0137300 68,50 0,971,01 172,66

R28-R320,12001,05000,60180113,400,094300 186,36 2,642,72 168,91

R30-R320,22000,22000,6018023,760,005300 42,98 0,610,61 159,51

R 32-R330,09001,36000,60180146,880,094300 186,36 2,642,91 200,52

R33-R360,09001,45000,60180156,600,0456400 286,31 2,282,29 211,35

R34-R360,20000,20000,6018021,600,0057300 45,89 0,650,63 145,42

R36-R370,11001,76000,60180190,080,1024400 429,05 3,413,26 187,40

R37-R390,15001,91000,60180206,280,0615400 332,51 2,652,74 227,90

R39-R570,16003,72000,60180401,760,0554500 582,93 2,973,16 304,49

R42-R440,20000,20000,6018021,600,01300 60,78 0,860,78 124,37

R44-R450,11000,31000,6018033,480,277300 319,90 4,533,09 63,81

R45-R470,13000,44000,6018047,520,1567300 240,61 3,402,69 90,19

R47-R540,12000,56000,6018060,480,1408300 228,08 3,232,73 105,93

R48-R500,13000,13000,6016012,480,1995300 271,49 3,843,80 152,62

R50-R510,08000,21000,6016020,160,0715300 162,53 2,301,63 70,00

R51-R540,12000,89000,6016085,440,0647300 154,61 2,192,20 159,48

R52-R540,22000,22000,6016021,120,0046300 41,22 0,580,58 152,62

R54- R570,15001,26000,60160120,960,0207400 192,91 1,541,60 229,40

R57-R590,39005,37000,60160515,520,037600 786,53 2,782,92 353,76

R59-R680,23005,60000,60160537,600,0802600 1157,98 4,103,95 288,60

R61-R620,36000,36000,6016034,560,0689300 159,55 2,261,82 94,85

R62-R650,38000,74000,6016071,040,0689300 159,55 2,262,16 140,95

R65-R660,16000,90000,6016086,400,0615300 150,74 2,132,17 162,95

R66-R680,13001,03000,6016098,880,0071400 112,98 0,901,02 290,47

B)ALIMENTATION EN EAUX POTABLE :

1 GENERALITE :

La prsente note de calcul traite le calcul de lalimentation des 500 logements sociaux HAMAMAT wilaya d'ALGER .

La consommation moyenne journalire t calcule pour une dotation de 200 l/s/hab et 7 habitant / logts.

2) BESOIN DOMESTIQUES :

Q0= ( 200 x 500 x7 )/ 86400= 8.10 l/s

3) DEBIT MOYEN JOURNALIER : (1

Q1 = (0 x FUITES

Les fuite dans le rseau sont estimes 20%

Q1 = 8.10 x 1.20 = 9.72 l/s

4) DEBIT DE POINTE :

Qp = Q1 x Kp

Kp coefficient de pointe prise gale 3

Qp =9.72 x3 = 29.16 l/s

Qp = 29.16 l/s

6) DEBIT PAR LOGEMENT:

Qplog = Qp / 500 Qplog = 29.16/ 500 = 0.058 l/s

La pression au point de piquage est de.

TABLEAU DES DIAMETRES

ED

logtsdbitLongueurdiamtrePerte de charge

unitairePerte de charge totalvitesse

P 0150029.1683.002000.00410.3400.92

1-2563.2522.00750.00840.18480.72

2-3442.5522.00750.00600.01320.60

3-4362.0919.00630.00950.18050.67

4-5241.3919.50630.00440.08580.48

5-6120.7020.50500.00390.07990.40

1-644425.75100.002000.00340.3400.83

6-7402.3224.00750.00950.2280.67

7-8252.4915.00630.00440.0660.48

8-9100.5822.00500.00390.08580.39

6-1040423.4324.002000.00260.06240.72

10-11252.4997.00630.00440.42680.48

11-12100.5822.00500.00390.08580.39

10-1337921.9875.002000.00260.1950.72

13-14482.7825.00750.00600.150.60

14-15301.7415.00630.00670.10050.56

15-16120.721.00500.00390.08190.40

13-1733119.2011.002000.00180.01980.62

17-17120.705.00500.00390.01950.40

17-181569.0524.001600.00170.04080.59

18-1931918.5070.001600.00160.11240.48

19-20965.5724.001100.00360.08640.61

20-21885.1025.00900.00410.10250.64

21-22362.0910.00630.00950.09640.67

22-23181.0117.00500.00820.13940.53

21-24482.7843.00750.00600.2580.60

24-25301.7415.00630.00670.10050.58

25-25120.7021.00500.00390.08190.40

19-26603.4864.50750.00600.3870.74

26-26482.7822.00750.00600.1320.60

26-27362.0920.00630.00950.190.67

27-28181.0416.00500.00820.14760.53

18-291639.4511.501250.00460.05290.72

29-291518.563.001250.00430.01390.70

29-30543.1321.00750.00840.17640.71

30-31362.0919.00630.00950.1810.67

31-32181.0415.00500.00820.13940.53

29-33985.6317.501100.00320.0560.55

33-34884.9326.001100.00280.07280.53

34-35181.0410.00500.00800.0820.51

34-36704.0610.00900.00580.0580.66

36-37603.4837.00750.00600.2220.74

37-38482.7818.00750.00820.14760.53

38-39301.7416.00630.00670.10050.50

39-40

120.7020.00500.000390.07990.40