Perhitungan Drainase

Perhitungan Drainase

Lahan Nama Saluran Daerah Layanan Luas M2 1-2 2-3 4-5 5-6 7-8 8-6 6-3 3-9 9-10 10-11 11-12 12-Outlet T5 J27 E3 J24 F

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Polecaj historie

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Lahan Nama Saluran

Daerah Layanan

Luas M2

1-2 2-3 4-5 5-6 7-8 8-6 6-3 3-9 9-10 10-11 11-12 12-Outlet

T5 J27 E3 J24 F3 J25 J23 J25' F4 J23' T5 - J23' J20 E4 J20' T5-J20' T4 J18'' T4 J16

Koefisien Limpasan

515.2034 299.4653 509.4375 155.1857 462 144.0519 87.8726 45.2585 462 148.9357 2829.4106 88.0413 505.3125 158.1411 3580.9055 91.9371 12.5568 91.9371 197.1733

Ha 0.0515 0.0299 0.0509 0.0155 0.0462 0.0144 0.0088 0.0045 0.0462 0.0149 0.2829 0.0088 0.0505 0.0158 0.3581 0.0092 0.0013 0.0092 0.0197

C

Sl 0.30 0.80 0.75 0.80 0.75 0.80 0.80 0.80 0.75 0.80 0.80 0.75 0.80 0.30 0.80 0.30 0.80

Saluran

Slope Lahan Panjang Aliran Waktut0Aliran, D 0.01 0.02 0.01 0.02 0.01 0.02 0.02 0.02 0.01 0.02 0.02 0.01 0.02 0.01 0.02 0.01 0.02

Dari tabel perhitungan diperoleh nilai H dan B dengan rata-rata H=0.7 m dan B=0.4m dengan tinggi jagaan (freeboard) berdasarkan debit 0.0 - 0.3 m3/det maka tinggi jagaannya 0.3 m

14.03 2.50 8.25 2.50

29.7735 3.3326 9.9886 3.3326

8.25 2.50 4.00 2.50 8.25 2.50

9.9886 3.3326 4.2155 3.3326 9.9886 3.3326

2.50 8.25 2.50 2.00 2.50 2.00 2.50

3.3326 9.9886 3.3326 11.2413 3.3326 11.2413 3.3326

t0 diambil

H

B

Ss

m

m

29.7735 0.7

0.4

0.03

9.9886 0.8

0.4

9.9886 0.8

n

Aw

p

m2

m

0.011

0.2623

1.8106

0.03

0.011

0.3008

1.9391

0.4

0.03

0.011

0.2874

1.8953

4.2155 0.6 3.3326 0.5

0.3 0.3

0.03 0.03

0.011 0.011

0.1529 0.1490

1.3825 1.3649

9.9886 0.8

0.4

0.03

0.011

0.2882

1.8979

67.2876 0.5 3.3326 0.6

0.3 0.3

0.03 0.03

0.011 0.011

0.1332 0.1530

1.2904 1.3831

9.9886 0.8

0.4

0.03

0.011

0.2980

1.9300

80.6089 0.5

0.3

0.03

0.011

0.1462

1.3518

11.2413 0.6

0.3

0.03

0.011

0.1824

1.5100

11.2413 0.6

0.3

0.03

0.011

0.1951

1.5616

Saluran

Final tc total

ITR

R

v

Qsal

L

td

tc

m

m/s

m3/s

m

menit

menit

0.1448

0.0095

0.0025

117.66

205.6336

235.4072

235.4072

18.0653

0.1551

0.0109

0.0033

61.00

92.9417

102.9303

338.3375

0.1516

0.0104

0.0030

56.82

90.6236

100.6123

0.1106 0.1092

0.0056 0.0054

0.0009 0.0008

18.50 17.00

55.4570 52.2813

0.1518

0.0105

0.0030

58.00

0.1032 0.1106

0.0048 0.0056

0.0006 0.0009

0.1544

0.0108

0.1081

Crata-rata

Atotal

Q

Ha

m3/s

0.4838

0.0815

0.0020

0.0005

0.3

18.0653

0.7617

0.0665