Post on 22-Feb-2018
7/24/2019 Exercise Hidrologi
1/73
Hitung Parameter Statistik Data Tesebut
Hitung hujan rancangan dengan distribusi hujan mengikuti distribusi Gumbe
kala ulang 5 tahun dan 20 tahun (Ganjil)
kala ulang 10 tahun dan 50 tahun (Genap)
No TahunTinggi Hujan Tinggi Hujan
(mm) (mm)
1 2
1 1!!! 11"#10 1$%"12#&1
2 2000 '$#'0 "%022#&&
$ 2001 101#0 10%$22#5
& 2002 '#00 &%2
5 200$ '"#"0 "%!1#2!
200& 11'#20 1$%!"1#2&
" 2005 10'#00 11%
' 200 1$2#10 1"%&50#&1
! 200' 1$!#00 1!%$21#0010 200! "$#00 5%$2!#00
11 2010 0#20 $%2&
12 2011 '#50 "%&'2#25
1,175.20 122,214.64
1%1"5#20
12#00
122%21&
12#00
0#00 10%1'7
n 12#00
1#00&
1
*
a *+
2
,rata-rata
(,rata-rata
)2
(102#&$)
2
*
*+
7/24/2019 Exercise Hidrologi
2/73
#
"!$
$$#1
1
a
2$#00
dr Tabel
dr Tabel
dr Tabel
dr Tabel
dr Tabel
,T
T5
.T
T20
.T
T10
.T
T50
.T
T100 .T
7/24/2019 Exercise Hidrologi
3/73
ll untuk
!"#!$
10%&!1#!0
10%1'7
- 10%&!1#!0 2$#11
% . 0#&&'
2$#11
2$#001#00&
7/24/2019 Exercise Hidrologi
4/73
# #
0#&5
/ b
/ $$#1
0#2!$5 2$#00 0#2!$5 /
0#&!$$ 2$#00 0#&!$$ /
0#&2"1 2$#00 0#&2"1 /
$#!01! 2$#00 $#!01! /
2$#00 /
,T
.T
7/24/2019 Exercise Hidrologi
5/73
7/24/2019 Exercise Hidrologi
6/73
$$#1 &0#$ mm2&jam
$$#1 &! mm2&jam
$$#1 &$#&& mm2&jam
$$#1 12$#$" mm2&jam
$$#1 1$!#&& mm2&jam
7/24/2019 Exercise Hidrologi
7/73
Diketahui 110 mm
120 mm
3 10! mm
D $01 mm
Ditan+a
SD
4
nalisa Perhitungan
Prata-rata
Prata-rata
2
36
( )
10
4,25
176744100.100
)(.1
1800
3
221800
22
22
222
=
=
==
=
+==
+==
E
CN
pC
ppn
n
n
pp
n
pp
v
v
7/24/2019 Exercise Hidrologi
8/73
7P
4
1%'00#00
1%"#"
$%2&0%000#00
$%25%#"
SD $#00
2#00
1#$$
1#$$
1#$$
1'0%"&0#"&
&25#1&
100#00
Prata-rata
Prata-rata
2
36
7/24/2019 Exercise Hidrologi
9/73
2
4 2
10#00
2#&0&$10025
5#"!0!101!"
7/24/2019 Exercise Hidrologi
10/73
2
= EC
N
v
47,6
4,25
449)1767667.256.3.(2
3
667.256.33
13002200
176713000
5.05.0
22
=
=
=
=
=+
=+
mm
7/24/2019 Exercise Hidrologi
11/73
2%200#00 1%$00#00
2#00
&%'&0%000#00 1%!0%000#00
2#00
( $%25%#" -
( $%25%#" -
$%25%#" $%121%111#11
1$5%555#5
, &25#1&
1%"#"
7/24/2019 Exercise Hidrologi
12/73
7/24/2019 Exercise Hidrologi
13/73
7/24/2019 Exercise Hidrologi
14/73
1%"#" ) 0#5
1%"#" ) 0#5
7/24/2019 Exercise Hidrologi
15/73
7/24/2019 Exercise Hidrologi
16/73
Pada sebuah DS terdapat " stasiun pengukur curah hujan% dengan curah
hujan masing-masing adalah
1.00 2.00 3.00 4.00 5.00
0#00 52#00 &'#00 50#00
STALuas
1 #5 "#$&
2 0#00 10#52 11#0$$ 52#00 '#02 "#2!
& &'#00 !#0' "#2
5 50#00 #$2 5#52
&0#00 "#&2 5#1!
" $#00 !#2' 5#'&
57.20 49.84
STALuas
1-2 2#00 #5 '#&!
2-$ 5#00 10#52 12#2!
$-& 50#00 '#02 '#$"
&-5 &!#00 !#0' !#2'
5- &5#00 #$2 5#!$
-" $'#00 "#&2 5#''
47.92 50.25
1-2 55 1"#!& 2'#''
2-$ &5 1#22 21#$"
$ 50.25
u!ah Hujan(mm)
"o#um$ H(mm%&m2)(&m2)
u!ah Hujan
(mm)
"o#um$ H
(mm%&m2
)(&m2)
7/24/2019 Exercise Hidrologi
17/73
6.00 7.00'aa!aa H
(mm)
&0#00 $#00 50#00
7/24/2019 Exercise Hidrologi
18/73
Diketahui 110 mm
120 mm
3 10! mm
D $01 mm
Ditan+a
SD
4
nalisa Perhitungan
7P
4
110#00 120#00
10#00
12%100#00 1&%&00#00
$2%2&5#50
SD
($#00
1#$$ (
&2%"'0#" 0#50
Prata-rata
Prata-rata
2
36
Prata-rata
Prata-rata
2
7/24/2019 Exercise Hidrologi
19/73
20#'$
100#00 ,
10#00
12!#2"
4 12!#2"
10#00
12#!2"1"!'
1"#111!"!2
36
7/24/2019 Exercise Hidrologi
20/73
10!#00 888
11%''1#00 !0%01#00
$2%2&5#50 - 10#00 ) 0#5
$2%0'5#50 ) 0#50
7/24/2019 Exercise Hidrologi
21/73
20#'$
7/24/2019 Exercise Hidrologi
22/73
Pada sebuah DS terdapat " (tujuh) stasiun pengukur curah hujan% dengan cur
1#00 2#00 $#00 2 $
Sasiun H (mm)
Sta 1#00 #5 &1!#'&
Sta 2#00 0#00 10#52 $1#20
Sta $#00 52#00 '#02 &1"#0&Sta &'#00 !#0' &$5#'&
Sta 5#00 50#00 #$2 $1#00
Sta #00 &0#00 "#&2 2!#'0
Sta "#00 $#00 !#2' $$'
57.20 2,850.80
49.84 mm
1-2 0#00 1"#!& 1%0"#&02-$
$-&50#00 1#22 '11#00
&-5
5-0#00 22#& 1%$5'#&0
-"
56.80 3,245.80 57.14 mm
A (&m2) H. 'aa2
7/24/2019 Exercise Hidrologi
23/73
ah hujan masing-masing adalah
12!#!0
'$!#"0 0#15 2$#20
150#00
0#1'
7/24/2019 Exercise Hidrologi
24/73
*A+'AHS-H+T L/ASAN ANTA'A 2 '+'ATA *A' 2
mm S-H+T S-H+T
1 2 $ &
1
15#00
1 1"#50
20#00
50#00 22#50
2
25#00
!5#00 2"#50
$0#00
111#00 $2#50
$
$5#00
1&0#00 $"#50
&0#00
"0#00 &2#50
&
&5#00
/LAH 480.00
7/24/2019 Exercise Hidrologi
25/73
L/ASAN '+'ATA 9ata-9ata 3urah Hujan
5$& $0#00 5$#00
2&5#00
1%125#00
2%12#50
$%0"#50
5%250#00
2%!"5#00
15,815.00 32.95 mm
757$
7/24/2019 Exercise Hidrologi
26/73
&2#00 1 "0#00 55#00 15#00 2"!#00
$!#'mm
7/24/2019 Exercise Hidrologi
27/73
:s;h+et
7/24/2019 Exercise Hidrologi
28/73
Hitung Parameter Statistik Data Tesebut
Hitung hujan rancangan dengan distribusi hujan mengikuti distribusi Gumbell unt
kala ulang 5 tahun dan 20 tahun (Ganjil)
kala ulang 10 tahun dan 50 tahun (Genap)
No TahunTinggi Hujan Tinggi Hujan
(mm) (mm)
1 2
1 1!!! 11"#10 1$%"12#&1
2 2000 '$#'0 "%022#&&
$ 2001 101#0 10%$22#5
& 2002 '#00 &%2
5 200$ '"#"0 "%!1#2!
200& 11'#20 1$%!"1#2&
" 2005 10'#00 11%
' 200 1$2#10 1"%&50#&1
! 200' 1$!#00 1!%$21#0010 200! "$#00 5%$2!#00
11 2010 0#20 $%2&
12 2011 '#50 "%&'2#25
1,175.20 122,214.64
1%1"5#20
12#00
122%21&
12#00
0#00 10%1'7 -
n 12#00 %
1#00&
1
*
a *+
2
,rata-rata
(,rata-rata
)2
(102#&$)
2
*
*+
7/24/2019 Exercise Hidrologi
29/73
#
"!$
$$#1
1
a
2$#00
dr Tabel
dr Tabel
dr Tabel
dr Tabel
dr Tabel
,T
,T
.T
T5
.T
T20
.T
T10
.T
T50
.T
T100 .T
7/24/2019 Exercise Hidrologi
30/73
k
!"#!$
10%&!1#!0
10%1'7
10%&!1#!0 2$#11
. 0#&&'
2$#11 2$#00
1#00&
7/24/2019 Exercise Hidrologi
31/73
# #
0#&5
/ b
/ $$#1
0#2!$5 2$#00 0#2!$5 / $$#1
0#&!$$ 2$#00 0#&!$$ / $$#1
0#&2"1 2$#00 0#&2"1 / $$#1
$#!01! 2$#00 $#!01! / $$#1
2$#00 / $$#1
7/24/2019 Exercise Hidrologi
32/73
7/24/2019 Exercise Hidrologi
33/73
&0#$ mm2&jam
&! mm2&jam
&$#&& mm2&jam
12$#$" mm2&jam
1$!#&& mm2&jam
7/24/2019 Exercise Hidrologi
34/73
nalisis =rekuensi hujan dengan >et;de Distribusi 4;rmal
4; Tahun 4;# ?rut , Tr (Tahun)
1 2001 10#00 5 11!#00
2 2002 $#00 '2#&0 !$0$ 200$ 5#00 "#00 '2#&0
& 200& "#00 "0#20 '1#00
5 2005 '1#00 "#00
200 2#00 !$0 "
" 200" '#00 !#50 "0#20
' 200' !#00 "#'0 !#50
! 200! #00 " "#'0
10 2010 1#00 11!#00 5
788.20
@umlah data n 10#00
4ilai 9ata-rata "'#'2
Standard DeAiasi 1"#& 1#2'
,urut
S
7/24/2019 Exercise Hidrologi
35/73
1#"
7/24/2019 Exercise Hidrologi
36/73
Tahun i (mm) Log i (Log iLog )
1!!1 &'#!2 1#'!&! 0#0115 0#0001$
1!!2 &"#"1 1#"'1 0#022&& 0#00050
1!!$ 51#2 1#"12'2 -0#011"" 0#0001&
1!!& &0 1#52 0#0$&5$ 0#0011!
1!!5 &!#' 1#!1' 0#00&'" 0#000021!! &"#"5 1#"'!" 0#0220' 0#000&!
1!!" 52#'& 1#"22! -0#021!1 0#000&'
1!!' 50#0! 1#!!"5 0#001$0 0#00000
1!!! 52#1 1#"1"$& -0#012! 0#0002"
2000 &'#5& 1#'10 0#01&!5 0#00022
2001 5"#5& 1#"5!!" -0#05'!2 0#00$&"
2002 50#5" 1#"0$'! -0#002'& 0#00001
603.82 20.41260 0.00693
Aerage 1#"0105 9erata
SD 0#02510 Standard DeAiasi3S 1#05&1! B;eC#Bepencengan (Skenes)
Simpangan aku SD 0#02510 Simpangan aku (Standart DeAiati;n)
Tabel Harga =akt;r =rekuensi B adalah sebagai berikut
Bala ?lang T
0#0002!!&2
s 100 1#05&2-1#0
1#00 $#02$ 1#20-1#0
1#20 $#1&!
1#05&2 $#05" in$!o#asi 0#2"1
7/24/2019 Exercise Hidrologi
37/73
0#2"1
0#05&2 1#5!!!&0#2 1#5
0#2"1 1#
0#00
2#5&
2%500#00
12%500#00
2#50
$1!#&&
1!%1#" 10#00
0#"0 "#$0
0#!' 10#&5
0#00 $#15
10#00
1%000%000#00
1$#$&
7/24/2019 Exercise Hidrologi
38/73
Tahun
0#00000 1#00000 1
0#00001 2#00000 2
0#00000 $#00000 $
0#0000& &
0#00000 5#00000 50#00001 #00000
-0#00001 "#00000 "
0#00000 '#00000 '
0#00000 !#00000 !
0#00000 10#00000 10
-0#00020 11#00000 11
0#00000 12#00000 12
0.00015 1$
1&
151
1"
1'
1!
$#05"1& 20
21
B#$#02$ 22
$#1&!-$#02$ 2$
2&
$#02$#B 25
0#12 2
SD B 2"
2'
0#02510 $#05"00 2!
$0
0#0""$ $1
$2
$$
$&
$5$
$"
$'
$!
&0
(Log iLog )3
$#02$
B
1#20
7/24/2019 Exercise Hidrologi
39/73
0#0!!!&0#1
0#!!!&
-0#2&0
-0#25& Sc
-0#01& 2#00
1"#1&2'5"1&2! 1#$0
0#000
-0#01$!!1
-0#25$!!1
0#"0 0#!' 10#00 1%000#00
0#00
1#50
1%500#00
"%500#00
&%000#00
%#"
1&%1#"
2$#11
7/24/2019 Exercise Hidrologi
40/73
i (mm) Log i (Log iLog )
5'#'0 1#"!$' -0#025 0#000 -0#00002
&0#0 1#0'5$ 0#1$51! 0#01'2' 0#002&"
&5#&0 1#5"0 0#0' 0#00"51 0#0005
&0#50 1#0"& 0#1$2 0#01'5" 0#0025$
&0 1#'0''! -0#051" 0#00&25 -0#0002'&'#10 1#'215 0#015" 0#00$"! 0#0002$
5$#&0 1#"2"5& 0#011' 0#0002 0#00000
52#"0 1#"21'1 0#021!1 0#000&' 0#00001
$#20 1#'00"2 -0#05"00 0#00$25 -0#0001!
1$$#0 2#125'1 -0#$'20! 0#1&5!! -0#055"'
5'#50 1#""1 -0#02$&& 0#00055 -0#00001
"0 1#'10!0 -0#0"1! 0#00&51 -0#000$0
5#20 1#'1&25 -0#0"05$ 0#00&!" -0#000$5
5#10 1#"&'! -0#0052& 0#0000$ 0#00000
55#"0 1#"&5' -0#0021& 0#00000 0#00000&!#$0 1#!2'5 0#050'" 0#0025! 0#0001$
"&0 1#'"15" -0#12"'5 0#01$5 -0#0020!
&'#20 1#'$05 0#00" 0#00$' 0#00022
!#20 1#'&011 -0#0!$! 0#00!2! -0#000!0
50#20 1#"00"0 0#0&$02 0#001'5 0#0000'
&!#"0 1#!$ 0#0&"$ 0#0022& 0#00011
&2#"" 1#$11& 0#1125' 0#012" 0#001&$
"2#0 1#'0!& -0#11"22 0#01$"& -0#0011
"#0 1#'2!!5 -0#0'2$ 0#00"&& -0#000&
$0 1#55' 0#0"'1& 0#0011 0#000&'
&'#0 1#'& 0#05"0' 0#00$2 0#0001!
0#50 1#"'1" -0#0$'0& 0#001&5 -0#0000
$#50 1#'02"" -0#05!05 0#00$&! -0#00021
&1#$0 1#15!5 0#12""" 0#01$2 0#0020!
&5#&0 1#5"0 0#0' 0#00"51 0#0005
50#$0 1#"015" 0#0&215 0#001"' 0#0000"
52#!0 1#"2$& 0#0202 0#000&1 0#00001
"0 1#!$2 0#0"&&0 0#0055& 0#000&1
&'#'0 1#''&2 0#055$0 0#00$0 0#0001"
"0 1#!$2 0#0"&&0 0#0055& 0#000&1&'#$0 1#'$!5 0#05!"" 0#00$5" 0#00021
&"#'0 1#"!&$ 0#0&2! 0#00&1$ 0#0002"
1#'102$ -0#051 0#00&&2 -0#0002!
5$0 1#"$&'0 0#00'!2 0#0000' 0#00000
!2 1#!"5&$ -0#2$1"1 0#05$! -0#012&&
2,285.37 69.74877 0.40330 0.06234
9erata 1.74372
SD 0#101!
(Log iLog )2 (Log iLog )3
7/24/2019 Exercise Hidrologi
41/73
3s 1#5!!!&
6c 0#010$&
9erata 5"#1$& 9ata-rata
SD 1#5'0 Standard DeAiati;n
3A 0#2!0 6ariati;n 3;eEcient
Sc 2#'"0 Skeness 3;eEcient3k 11#2'"Burt;sis
35.261Burt;sis
2 5 10 20 50
-0#1!5 0#"$$ 1#$&0 1#!10 2#2
-0#210 0#"1! 1#$$! 1#!25 2#"
2#'"0
1 1%000%000#00
&%&&&&
1$%$$$#$$
1"%"""#""
2!#$0
7/24/2019 Exercise Hidrologi
42/73
Tahun i (mm)
1 $#$0
2 "2#00
$ !$#$0
& &!#10
5 52 '0
" 52#&0
' 1#"0
! 2
10 '2#0
11 5#00
12 !0
1$ &'#'0
1& 10#'0
15 ''#!01 10"#"0
1" 50#$0
1' 110#"0
1! !5#0
20 51#!0
21 202#$0
22 1&0#0
2$ 52#50
2& "5#'0
25 !#'0
2 51#50
2" 1&'#50
2' '#20
2! ''#!0
$0 !$#'0
$1 &'#20
$2 120#20
$$ 10&0
$& 10"#0
$5 15#&0$ 12#$0
$" !#$0
$' 2#&0
$! !0#$0
&0 '5#"0
3,465.50
'$!aa 86.638
S* 35.315
7/24/2019 Exercise Hidrologi
43/73
0.408
S 1.232
1.851
100
$#1&!
$#211
7/24/2019 Exercise Hidrologi
44/73
nalisis =rekuensi hujan dengan >et;de Distribusi Pears;n t+pe :::
4; Tahun , /
1 2001 5 "'#'20 /
2 2002 '2#&0 "'#'20 /
$ 200$ "#00 "5#1'
& 200& "0#20 3s 2 5 105 2005 '1#00 1#20 -0#1!5 0#"$$ 1#$&0
200 !$0 1#$0 -0#210 0#"1! 1#$$!
" 200" !#50 1#2"5 -0#20 0#"22 1#$$!
' 200' "#'0
! 200! "
10 2010 11!#00
Sum 788.200 1#20
A$!ag$ 78.820 1#$0
S* 17.643 1#2'
S 1.275 0#"5 -0#1!5 0#"$$ 1#$&0 0.224 -0#01500 -0#01&00 -0#00100
-0#0112" -0#01052 -0#000"5
d -0#202" 0#"22&' 1#$$!25
,T
,i
7/24/2019 Exercise Hidrologi
45/73
SD
-0#20 1"#&$
-$#$&
20 50 1001#!10 2#2 $#1&!
1#!25 2#" $#211
1#!21 2#5" $#1!
1#!10 2#2 $#1&!0#01500 0#0&100 0#0200
0#0112" 0#0$0'2 0#0&0
1#!212" 2#5'2 $#1!50
BT
7/24/2019 Exercise Hidrologi
46/73
4; Tahun , (mm)
1 1!'0 1&0#00 1!%00#00
2 1!'1 150#00 22%500#00
$ 1!'2 10#00 25%00#00
& 1!'$ 1&0#00 1!%00#00
5 1!'& 1"0#00 2'%!00#00
1!'5 10#00 25%00#00
" 1!' 1"0#00 2'%!00#00
' 1!'" 1&0#00 1!%00#00
! 1!'' 1$0#00 1%!00#00
10 1!'! 120#00 1&%&00#00
11 1!!0 1'0#00 $2%&00#00
12 1!!1 1"0#00 2'%!00#00
1$ 1!!2 1'0#00 $2%&00#00
1& 1!!$ 10#00 25%00#00
15 1!!& 10#00 25%00#00
2,330.00 366,500.00
155.33 24,433.33
18.07 24,433.33
0.44
0.12
-0#105!""2
, (mm)2
7/24/2019 Exercise Hidrologi
47/73
2&%12'#&&
$0'!
1"#&
1#'$
7/24/2019 Exercise Hidrologi
48/73
4F P(mm)
1 $#$0 &%00#'!
2 "2#00 5%1'
$ !$#$0 '%"0'!
& &!#10 2%&10#'1
5 52 2%!"0#25 '0 &%1!!#0&
" 52#&0 2%"&5#"
' 1#"0 $%'0#'!
! 2 &%10#25
10 '2#0 %'22#"
11 5#00 $%1$#00
12 !0 2%1!!#1
1$ &'#'0 2%$'1#&&
1& 10#'0 11%&0#2&
15 ''#!0 "%!0$#211 10"#"0 11%5!!#2!
1" 50#$0 2%5$0#0!
1' 110#"0 12%25&!
1! !5#0 !%1$!#$
20 51#!0 2%!$#1
21 202#$0 &0%!25#2!
22 1&0#0 1!%"'#$
2$ 52#50 2%"5#25
2& "5#'0 5%"&5#& 1#2$ 1#20
25 !#'0 !%$"0#2& 1#$0 1#202 51#50 2%52#25
2" 1&'#50 22%052#25 5#'2
2' '#20 "%&$0#&& #15
2! ''#!0 "%!0$#21 0#$$
$0 !$#'0 '%"!'#&&
$1 &'#20 2%$2$#2&
$2 120#20 1&%&&'#0&
$$ 10&0 10%'!!#$
$& 10"#0 11%5""#"
$5 15#&0 2"%$5"#1
$ 12#$0 15%!51#!
$" !#$0 !%2"$#!
$' 2#&0 $%'!$#"
$! !0#$0 '%15!
&0 '5#"0 "%$&&!
3,465.50 $&'%''0#5$
'#&Aerage
$5#$1SD
P(mm)2
7/24/2019 Exercise Hidrologi
49/73
1.23164Sc
0#&0"2 3A
"#02&2
7/24/2019 Exercise Hidrologi
50/73
0#0$
0#100#$0
0#10
5#!152
7/24/2019 Exercise Hidrologi
51/73
7/24/2019 Exercise Hidrologi
52/73
4; P (mm)
1 1#'0'5'
2 $ 1#5$2"5&
$ 5"#$0 1#"5'155
& 5#$0 1#"5050'
5 $0 1#'0'211
"0 1#'10!0&" $!#&0 1#5!5&!
' 5#"0 1#"5$5'$
! &!#10 1#!10'1
10 &2#20 1#25$12
11 11'#50 2#0"$"1'
12 !0#!0 1#!5'5&
1$ "$0 1#'"0!'!
1& $"#20 1#5"05&$
15 !2#&0 1#!5"2
1 11#!0 2#0"'15
1" 5$#"0 1#"2!!"&
1' 1#'0 1#"!0!''
1! '2#10 1#!1&$&$
20 102#!0 2#012&15
21 5#!0 1#"55112
22 5!#50 1#""&51"
2$ &2#"0 1#$0&2'
2& "5#"0 1#'"!0!
25 &2#0 1#2!&1
2 &$#&0 1#$"&!
2" 55#&0 1#"&$51
2' $'0 1#5&15"!
2! '#0 1#'$$2&
$0 2#&0 1#"!51'5
$1 !2#0 1#!11
$2 $#$0 1#'01&0&
$$ &!0 1#522&
$& $"#10 1#5!$"&
$5 !"#&0 1#!''55!
$ 5 1#"$$!!!
$" 5#'0 1#'1'22
$' $#00 1#"!!$&1
2%&1!#20 "#&
$# 1#"'
22#0'1!5 0#1&&!5
0#!01!2" 0#22500
7/24/2019 Exercise Hidrologi
53/73
1 $#$0
2 "2#00
$ !$#$0
& &!#10
5 52
'0
" 52#&0' 1#"0
! 2
10 '2#0
11 5#00
12 !0
1$ &'#'0
1& 10#'0
15 ''#!0
1 10"#"0
1" 50#$01' 110#"0
1! !5#0
20 51#!0
21 202#$0
22 1&0#0
2$ 52#50
2& "5#'0
25 !#'0
2 51#50
2" 1&'#50
2' '#20
2! ''#!0
$0 !$#'0
$1 &'#20
$2 120#20
$$ 10&0
$& 10"#0
$5 15#&0
$ 12#$0
$" !#$0
$' 2#&0
$! !0#$0
&0 '5#"0
$%&5#500
'#$'9ata-rata
$5#$15SD
0#&0' 3A
1#2$2 3s
7/24/2019 Exercise Hidrologi
54/73
Sc 2 5 10 20 50 100
1#200 1#200 1#5&2 2#0'2 2#!! &!0 5#'15
1#$00 1#222 1#5'0 2#1$$ $#0"2 "11 #1&!
1#2$2 1#20"
1#2$2 - 1#200
B 1#200
1#$00 - 1#200 1#222 1#200
0#0$2
1#200B
0#100 0#022
0#$1$!"
1#200B
0#022
B 0#$1$!" 0#022
1#20!1
7/24/2019 Exercise Hidrologi
55/73
7/24/2019 Exercise Hidrologi
56/73
/ SD
'#& 1#21 $5#$1
$%102#21
/ 1#200
,T
,i
BT
7/24/2019 Exercise Hidrologi
57/73
Hitung esaran intensitas hujan pada suatu daerah aliran apabila diketahui da
harian dengan kala ulang 2 tahun dan 9&2 mm% aktu k;nsentrasi pada dae
Tc 1#2 @am#
'umus onono$
: 9
( 2&
)2& Tc '0#!1
2&
&2
( 2&
) $#$"125
2& 1#2
0#" 1#"5( 20 ) &1#"'5$
1#"5( "#$'0)
12.894mm%am 0#002"'
0#&5
&1#"!
20
1#0&55'
2$
2$
7/24/2019 Exercise Hidrologi
58/73
ta hujan
ah aliran tersebut
2 0#"
0#55
&$#&
12#$!
3,000.00
2#50
$#5
10500
7/24/2019 Exercise Hidrologi
59/73
Suatu Daerah Pusat Perniagaan dengan suatu bentuk titik sebagai titik
saluran drainase berada di tengah-tengah areal dengan kemiringan salura
kecepatan aliran diatas permukaan tanah diperkirakan sebesar 0#15 mde
jika terjadi hujan merata pada daerah aliran tersebut dengan intensitas se
tentukan besarn+a debit maksimum untuk merancang dimensi saluran dr
I
P
G
$ Bm
nalisa Perhitungan
sumsi arah aliran IG :
B;eJsien daerah pengaliran untuk daerah perniagaan pada tab
K 0#!
Laktu k;nsentrasi Tc t; / td
t; Becepatan di atas tanah A; 0#15 mdet
IP 1000 m
t; IPA;
t; 1%000#00
0#15
%#"
td Bemiringan saluran & % menurut tabel
Ad 0#! mdet
P $000 mtd PAd
$%000#00
enurut tabel k;eJsien pen+ebaran hujan M 0#!!2
7/24/2019 Exercise Hidrologi
60/73
0#!0
$%$$$#$$
t; / td
%#" /
10%000#00 det
1#" menit2#"' @am
Debit aliran >aimum menurut met;de rasi;nal terjadi apabila
hujan +ang terjadi lebih besar atau sama dengan aktu k;nsen
artin+a akumulasi air hujan seluruh daerah pengaliran secara b
sama meleati titik k;ntr;l
; < = > ?
< 0.9 > 0.992
< 14.88
Laktu k;nsentrasi Tc
m3%@$
7/24/2019 Exercise Hidrologi
61/73
;ntr;l keluaran
n sebesar &
#
besar 10 mm@am%
inasen+a
=
1 Bm
;
1 Bm
H
;
l
det
7/24/2019 Exercise Hidrologi
62/73
det
$%$$$#$$
lama
rasi%
rsama
> > A
> 2.78 > 6
7/24/2019 Exercise Hidrologi
63/73
120 1
1$0 1#0"
1&0 1#15
150 1#5
10 1#
1"0 $
1'0 "#5
"#5 1'0
$ 1"0
1# 10
1#5 150
1#15 1&0
1#0" 1$0
1 120
2 '#!
5 '
10 #5
20 "
$0 $#
0 1#'
!0 1#2
150 0#'5
210 0#'2
2"0 0#'
0 50 100 150 2
0
1
2
$
&
5
"
'
!
10
10#00
12#00
0 1 2 $
0
20
&0
0
'0
100
120
1&0
10
1'0
200
3;lu
m
m
%
2
4
j
a
m
7/24/2019 Exercise Hidrologi
64/73
1 2 3 4 5 6 7 8
Hujan (mm) : 3 6 15 10 5 3
Hasil pengukuran debit limpasan permukaan adalah sebagai berikut
1#00 2#00 $#00 5#00 #00 "#00 '#00
$#00 #00 15#00 10#00 5#00 $#00 2#00 1#00
'#00 "#00 #00 5#00 $#00 2#00 1#00
$#00 #00 15#00 10#00 5#00 $#00 2#00 1#00
'#00 "#00 #00 5#00 $#00 2#00 1#00
1
'#00
0#50
5#00
201%00#00
20#1
$ '
"
15
10 5
5 &
$ $2 2
1 1
0#00 2#00 #
0#00
2#00
#00
'#00
&
'
10
12
1&
1
$
15
10
'"
5
7/24/2019 Exercise Hidrologi
65/73
1 2 $ &0
3;lumn
7/24/2019 Exercise Hidrologi
66/73
00 250 $00
3;lumn
& 5 " '
mn 3
7/24/2019 Exercise Hidrologi
67/73
2 1
0#00
0#00
201%00#00
10#00 Bm
1%000%000#00
10%000%000#00
0#02
20%10#00
00 '#00 10#00 12#00
3;lumn
0#00 2#00 #00 '#00 10#00
0#00
1#00
2#00
$#00
5#00
#00
"#00
'#00
!#00
A>is Ti#$
A>is Ti#$
5$
2
&$
2
7/24/2019 Exercise Hidrologi
68/73
5 " '
3;lumn 3
7/24/2019 Exercise Hidrologi
69/73
5
1
&
0#'
0#1
1#'$25'1
-0#05"2
0#22$1&&
1#&!!!&
7/24/2019 Exercise Hidrologi
70/73
12#001#00
9; "0
7/24/2019 Exercise Hidrologi
71/73
7/24/2019 Exercise Hidrologi
72/73
:ntensitas Hujan @am-jaman (mmjam) untuk berbagai peri;de ulang
&a#a /#ang (Tahun)
($ni) 2 5 10 15 20 25 30
5 2$0#05 2""#&" $02#$" $1"$ $22#!0 $2'#!0 $$$#2
10 1&!2 1"'0 1!0#&' 1!'#2 20$#&2 20"#1! 210#1"
15 110#0 1$$#&0 1&5#$ 151#$0 155#2& 15'#12 10#$!20 !1#2! 110#12 120#00 12!0 12'#1& 1$0#52 1$2#&0
&5 5$#1" $ !#'' "2#"& "$ "#02 ""#11
0 &$#'! 52#!& 5"#! 0#05 1#1 2#"5 5#5
120 2"#5 $$#$5 $#$& $"#'$ $'#'1 $!#5$ &0#10
1'0 21#10 25#&5 2"#"$ 2'#'" 2!#2 $0#1" $0#0
$0 1$#2! 1#0$ 1"#&" 1'#1' 1'# 1!#00 1!#2'
"20 '#$" 10#10 11#01 11#& 11#"5 11#!" 12#1&
0 100 200 $00 &
0#00
50#00
100#00
150#00
200#00
250#00
7/24/2019 Exercise Hidrologi
73/73
40 50 100
$&0#"1 $&5#!' $1#&$
21$ 21"#!5 22"#'
1$#'0 1#$$ 1"$#"1$5#21 1$"#$0 1&$#&$
"'#"5 "!#! '$#5$
5#00 #01 '#!5
&0#!5 &1#5' &$#&&
$1#25 $1#"$ $$#15
1!#! 1!#!! 20#''
12#&0 12#5! 1$#1
0 500 00 "00 '00
3;lumn
3;lumn
3;lumn
3;lumn
3;lumn