laporantugasakhir pengukuran debit dan pengaturan
TRANSCRIPT
LaporanTugasAkhir
PENGUKURAN DEBIT DAN PENGATURAN AIR IRIGASI
DI DAERAH IRIGASI BATANG LAMPASI
KOTA PAYAKUMBUH
Oleh
PADLIN AZIMI
NBP.1001342024
PROGRAM STUDI TATA AIR PERTANIAN
JURUSAN TEKNOLOGI PERTANIAN
POLITEKNIK PERTANIAN UNIVERSITAS ANDALAS
PAYAKUMBUH
2013
PENGUKURAN DEBIT DAN PENGATURAN AIR IRIGASI
DIDAERAH IRIGASI BATANG LAMPASI
KOTA PAYAKUMBUH
Oleh :PadlinAzimi
RINGKASAN
Tujuandari PKPM iniadalah
a).Memperluaswawasandanmeningkatkanpengetahuantentangpengoperasianda
npemeliharaanjaringanirigasi.b).Dapatmelaksanakanpengukuran debit
denganmetodeluaskecepatanc). Mengetahuitatacarapengaturan air irigasi di
Daerah IrigasiBatangLampasi.Manfaatdari PKPM antara lain
a).Denganadanyapengalaman PKPM ini,
dapatmenambahilmupengetahuantentangoperasidanpemeliharaansistemirigasi
b).Mahasiswamendapatilmudanpengalamankerjasesuaidalambidangoperasidan
pemeliharaan (O-P) Serta pengukuran debit (Q)
denganmenggunakanmetodeluasdankecepatan c).Denganpengalaman yang
diperoleh,
mahasiswadiharapkandapatmeningkatkanketerampilandanmempersiapkandiri
menghadapiduniakerja.hasilpengukuran debit
padasaluranIrigasiBatangLampasi BKS 1- BKS 2 adalahsebagaiberikut:
pengukuran debit padasaluranirigasi BKS 1 didapatkan debit air yaitu 656
m3/dt.sedangkanpadapengukuran debit padasaluranirigasi BKS 2 didapatkan
debit yaitu 243 m3/dt.debit air yang
diperolehpadasaatpengukuranlebihkecildari debit
maksimumirigasi.operasipengaturan air irigasibatanglampasi yang
belumterlaksanadengan yang semestinyajugabanyaknyabangunanirigasi yang
tidakberfungsikarenasudahdalamkeadaanrusakdanharusnyasegeradiperbaiki.
LaporanTugasAkhir
PENGUKURAN DEBIT DAN PENGATURAN AIR IRIGASI
DIDAERAH IRIGASI BATANG LAMPASI
KOTA PAYAKUMBUH
Oleh:
PADLIN AZIMI
NBP.1001342024
Laporaninimerupakansebagianpersyaratanuntukmenyelesaikanp
endidikan Diploma III
Pada
PROGRAM STUDI TATA AIR PERTANIAN
JURUSAN TEKNOLOGI PERTANIAN
POLITEKNIK PERTANIAN UNIVERSITAS ANDALAS
PAYAKUMBUH
2013
LaporanTugasAkhir
PENGUKURAN DEBIT DAN PENGATURAN AIR IRIGASI
DIDAERAH IRIGASI BATANG LAMPASI
KOTA PAYAKUMBUH
Oleh :
PADLIN AZIMI
NBP. 1001342024
Menyetujui :
KetuaJurusanDosenPembimbing
TeknologiPertanian
Ir.Harmailis,M.SiIr.Ismawardi,MP
NIP . 19690716 199403 1 003 NIP . 196003111989031004
Mengetahui ,
DirekturPoliteknikPertanian
UniversitasAndalas
Ir.DeniSorel,M.Si
NIP.19600416198803100
LaporanTugasAkhir
PENGUKURAN DEBIT DAN PENGATURAN AIR IRIGASI
DIDAERAH IRIGASI BATANG LAMPASI
KOTA PAYAKUMBUH
Oleh :
PADLIN AZIMI
NBP.1001342024
TelahDiuji DanDipertahankan Di Depan Tim PengujiLaporanTugasAkhir
Program Studi Ata Air PertanianPoliteknikPertanianUniversitasAndalas
Padatanggal 12 Juli 2013
TIM PENGUJI
No Nama Jabatan TandaTangan
1 Reni Ekawaty,Ssi.Msi Ketua
2 Ir. Ismawardi, MP Anggota
3 Ir. Amrizal, MP Anggota
KATA PENGANTAR
Pujisyukurpenulisucapkankehadirat Allah SWT yang
telahmemberikanrahmatdankarunia_Nyakepadapenulissehinggapenulisdapatmeny
elesaikanLaporanPengalamanKerjaPraktekMahasiswa (PKPM).
Laporaninimerupakansalahsatuhasildaripelaksanaan PKPM di
KantorDinasPengairan Kota Payakumbuh“Pengukuran Debit Dan Pengaturan
Air Irigasi Di DaerahIrigasiBatangLampasi Kota
Payakumbuh”.Penulistidaklupauntukmengucapkanterimakasihkepadasemuapiha
k yang telahmembantupenulisdalam proses penulisanlaporanini.
Ucapanterimakasihpenulissampaikan kepada:
1. Orang tuatercintaterutamaIbu yang
telahmemberidukunganbaikmorilmaupunmateril.
2. Bapak Ir. Ismawardi ,MP selakudosenpembimbing PKPM
3. BapakYeriSiswantoselakupembimbinglapang PKPM.
4. Dinas PSDA Provinsi Sumatera Barat danKaryawankantor Rehab
IrigasiBatangLampasiPT,NindyaKaryaPersero.
5. BapakWeriSusena ES, STP, MP selakuKetuaProgram Studi Tata Air
Pertanian.
6. Bapak Ir. HarmailisM.SiselakuKetuaJurusanTeknologiPertanian.
7. Bapak Ir. Deni Sorel,
M.SiselakuDirekturPoliteknikPertanianUniversitasAndalasPayakumbuh.
8. Semuateman – temansenasibseperjuangan yang telahmemberikansemangat.
9. Semuapihakyagtelahmembantu, baiksecaramorilmaupunmateril.
Penulismenyadaribahwalaporaninimasihjauhdarikesempurnaan,
untukitupenulismengharapkankritikdan saran yang sifatnyamembangun demi
perbaikanlaporanini, semogainidapatbermanfaatbagikitasemua.
TanjungPati, 3 Juli 2013
PA
DAFTAR ISI
Halaman
Halaman Judul ................................................................................. ....... i
Ringkasan ................................................................................................
ii
HalamanPersyaratan ................................................................................
iii
Halaman Pengesahan ..............................................................................
iv
HalamanPenguji ......................................................................................
................................................................................................................. v
KATA PENGANTAR ............................................................................
................................................................................................................. vi
DAFTAR ISI ...........................................................................................
................................................................................................................. vii
DAFTAR TABEL ...................................................................................
................................................................................................................. viii
DAFTAR GAMBAR ..............................................................................
ix
DAFTAR LAMPIRAN ...........................................................................
................................................................................................................. x
I. PENDAHULUAN ..............................................................................
............................................................................................................ 1
1.1.LatarBelakang .............................................................................
..................................................................................................... 1
1.2.Tujuan .........................................................................................
..................................................................................................... 2
1.3.Manfaat .......................................................................................
..................................................................................................... 3
II. TINJAUAN PUSTAKA ....................................................................
............................................................................................................ 4
2.1.Pengertian Debit .........................................................................
..................................................................................................... 4
2.2.Pengaturan Air Irigasi ................................................................
.................................................................................................... 5
2.3.JaringanIrigasi .............................................................................
..................................................................................................... 6
2.3.1.KlasifikasiJaringanIrigasi ...................................................
..................................................................................................... 7
2.3.2.BangunanIrigasi .................................................................
..................................................................................................... 9
2.4.TeknikPengukuran Debit ............................................................
..................................................................................................... 12
2.4.1.PengukuranSecaraLangsung ..............................................
..................................................................................................... 13
2.4.2.PengukuranSecaraTidakLangsung .....................................
..................................................................................................... 13
III. METODE PELAKSANAAN ..........................................................
.......................................................................................................... 18
3.1.WaktudanTempat ........................................................................
..................................................................................................... 18
3.2.Alat Dan Bahan ...........................................................................
..................................................................................................... 18
3.2.1.Alat .....................................................................................
..................................................................................................... 18
3.2.2.Bahan..................................................................................
..................................................................................................... 18
3.3.Pelaksanaan .................................................................................
..................................................................................................... 19
3.3.1. MenyiapkanPelampungUntukPengukuranKecepatan........
........................................................................................... 20
3.3.2. TempatPengukuran ............................................................
........................................................................................... 20
3.3.3. MenghitungPenampangSaluran .........................................
........................................................................................... 21
3.3.4. MenghitungKecepatanAliran .............................................
........................................................................................... 21
3.3.5. Perhitungan Debit ..............................................................
........................................................................................... 21
IV. HASIL DAN PEMBAHASAN ........................................................
.......................................................................................................... 22
4.1.Deskripsi Daerah IrigasiBatangLampasi.....................................
..................................................................................................... 22
4.1.1.SejarahIrigasiBatangLampasi ............................................
..................................................................................................... 22
4.1.2.KeadaanGeografis ..............................................................
..................................................................................................... 22
4.1.3.Luas Area ...........................................................................
..................................................................................................... 23
4.1.4.Sumber Air ........................................................................
..................................................................................................... 23
4.1.5.Topografi ............................................................................
..................................................................................................... 24
4.1.6.Iklim Dan Cuaca ................................................................
..................................................................................................... 24
4.1.7.Jenis Tanah Dan Tanaman .................................................
..................................................................................................... 25
4.2.PemeliharaanJaringanIrigasi .............................................................
25
4.3.Pengukuran Debit Saluran.................................................................
................................................................................................................. 26
4.3.1.ProfilSaluranIrigasi ...........................................................
................................................................................................................. 27
4.3.2. PerhitunganLuasPenampang ............................................
................................................................................................................. 27
4.3.3.Waktu Yang DibutuhkanPelampung.................................
................................................................................................................. 27
4.3.5.Perhitungan Debit..............................................................
................................................................................................................. 28
4.4 . Pengaturan Air Irigasi .............................................................
.................................................................................................... 31
4.4.1. PintuBagi Dan Sadap ......................................................
......................................................................................... 31
4.4.2. BangunanIrigasiBatangLampasi .....................................
......................................................................................... 32
4.4.3. Pengaturan Air Irigasi .....................................................
......................................................................................... 33
V .KESIMPULAN DAN SARAN .........................................................
................................................................................................................. 34
5.1. Kesimpulan ...............................................................................
................................................................................................................. 34
5.2. Saran .........................................................................................
35
DAFTAR PUSTAKA ......................................................................
.......................................................................................................... 36
LAMPIRAN ................................................................................... .
.......................................................................................................... 37
DAFTAR TABEL
TabelHalaman
1. KoefisienPengairan Dari PelampungPermukaan ............................. 15
2. HasilPengukuranPenampangSaluran ............................................... 26
3. Rata-Rata KecepatanPelampung/15 meter ...................................... 27
4. HasilPengukuran Debit .................................................................... 28
5. BangunanIrigasiBatangLampasi ...................................................... 32
DAFTAR GAMBAR
Gambar Halaman
1. PenampangSaluranTrapesium ........................................................... 21
2. PenampangMelintangSaluranIrigasi BKS 1-BKS 2 ......................... 28
DAFTAR LAMPIRAN
Lampiran Halaman
1. SkemaJaringanIrigasiBatangLampasi ............................................... 38
2. PelaksanaanPengukuran Debit ......................................................... 39
3. PetaLokasiDaerah IrigasiBatangLampasi ......................................... 40
4. PetaSituasiDaearahIrigasiBatangLampasi ........................................ 41
5. BendunganBatangLampasi ............................................................... 42