PERBANDINGAN HASIL PENGUKURAN POLYGON MENGGUNAKAN TOTAL STATION DAN THEODOLITE PADA STUDY KASUS DI PROYEK REVAMPING PT. PETROKIMIA GRESIK
Sunarko Mahasiswa Program Study TeknikSipilUniversitasNarotama Surabaya
ABSTRAK Pengukurandanperencanaan yang tepatsangatdiperlukandalamsetiappembangunaninfrastruktur.Dalampembanguna nproyek revamping PT.Petro Kimia Gresik,metodepengukuran yang dipakaiadalah polygon tertutupdenganmenggunakanalatukur Total Station dan Theodolite. Setelahmelakukananalisahasilpengukuranantara Total Station dan Theodolite dapatdiketahuibahwa, hasilpenelitianpengukurandenganalat Total Station koreksikesalahanlebihkecildanlebihakurat. Hal tersebutterbuktibahwapadaalat Total Station selisihabsisnya: -0.002 danselisihordinatnya : 0.002. Sedangkanpadaalat Theodolite selisihabsisnya: 0.0073 danselisihordinatnya: -0.0123. Kata kunci: Total Station, Theodolite(T2), PengukuranPolygon
DAFTAR ISI HALAMAN SAMPUL ................................................................................... HALAMAN JUDUL........................................................................................ HALAMAN PENGESAHAN ......................................................................... HALAMAN PERSETUJUAN......................................................................... SURAT PERNYATAAN ................................................................................ KATA PENGANTAR .................................................................................... ABSTRAK ...................................................................................................... DAFTAR ISI.................................................................................................... DAFTAR TABEL ........................................................................................... DAFTAR GAMBAR ...................................................................................... DAFTAR LAMPIRAN ................................................................................... BAB 1 :
BAB II :
PENDAHULUAN 1.1.LatarBelakang .......................................................................... 1.2.RumusanMasalah ..................................................................... 1.3.TujuanKegiatanPenelitian ........................................................ 1.4.RuangLingkup.......................................................................... 1.5.BatasanPenelitian ..................................................................... 1.6.ManfaatPenelitian ....................................................................
i ii iii iv v vi vii viii x xi xiii
1 1 1 2 2 2
TINJAUAN PUSTAKA 2.1.KerangkaDasarPemetaan ......................................................... 3 2.1.1 Alat – Alat Pengukuran................................................ 3 2.1.2 PemasanganBM ............................................................ 6 2.1.3 PemasanganPatokSementara........................................ 7 2.1.4 PenentuanTitikKoordinat ............................................. 7 2.1.5 PenentuanPosisiVertikal............................................... 20 2.2.PengukuranSituasi.................................................................... 23 2.3.Perataan .................................................................................... 23
BAB III : METODOLOGI PENELITIAN 3.1 LokasiPenelitian ...................................................................... 3.2 Alat Yang DigunakanDalamPenelitian ................................... 3.3 DeskripsitentangAlurPenelitian .............................................. 3.4 Area Batas Penelitian .............................................................. 3.5 Diagram AlurPenelitian........................................................... 3.6 JadwalWaktuPenelitian ........................................................... BAB IV : PENGOLAHAN DATA DAN HASIL 4.1 DasarAnalisa Data Pengukuran............................................... 4.1.1 PengkuranHorizontal.................................................. 4.1.2 Analisa Data PengukuranHorizontaldenganTS NIKON DTM 322 series ............................................. 1. PersiapanKomposisiAlat .......................................
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25 26 26 28 29 30
31 31 33 33
2. Set-Up Instrument ................................................. 3. Setting Instrument ................................................ 4. Setting Measurements ........................................... 4.1.3 PengukuranPoligondenganTotal Station .................... 1. Langkah-langkahPoligondenganTotal Station NIKON DTM 322 .................................................. 4.1.4 Pengukuran Detail Dengan Total Station................... 4.1.5 Pengeplotantitikkoordinat di lapangan(Stake out) TS NIKON DTM 322 ....................................................... 1. InputKoordinat ...................................................... 2. Pengeplotantitikkoordinat (x, y, z)........................ 4.1.6 PengukuranPoligonDenganTheodolite (T2) ............... 1. Langkah-langkahPengukuran................................ 2. PelaksanaanPengukuranSudutTheodolite (T2)...... 4.2. MetodePengukuranVertikal (Water Passing)........................... 1. Langkah-langkahPengukuranVertikal ................................. 4.2.1 PosisiTitik-TitikVertikal............................................... 4.3 Analisa Data Penelitian Dan Hasil ........................................... 4.3.1 HasilPengukuranPolygonDenganTS NIKON DTM 322....................................................................... 4.3.2 HasilPengukuranPoligonDenganTheodolite (T2).......... 4.3.3 HasilPengukuranLuasan Area Penelitian ..................... 1. Luasan Area Batas LahanPenelitian ...................... 2. Luasan Polygon Dengan TS ................................. 3. LuasanPoligonDengan Theodolite (T2) ............... 4.3.4. HasilPengukuranVertikal (Polygon Elevasi) ................ 4.4 AspekKartografidanOlah Data................................................. 4.5 HasilPengukuran Total Station dan Theodolite (T2)................ BAB V :
3 34 35 36 37 42 45 45 46 47 48 48 49 49 52 53 54 55 59 59 60 60 61 65 69
KESIMPULAN DAN SARAN 5.1 Kesimpulan.............................................................................. 5.2 Saran-Saran .............................................................................
DAFTAR PUSTAKA
v
70 70
DAFTAR TABEL
Tabel
3.1 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9
Hal
Alat-alatPengukuran .......................................................................... PengukuranPolygondenganTS ........................................................... PengukuranPolygon denganTheodolite ............................................. HasilPengukuranPeluasan Area Batas LahanPenelitian .................... HasilPengukuranPeluasanPolygondengTS ........................................ HasilPengukuranPeluasanPolygondenganTheodolite........................ Data PoligonElevasi........................................................................... HasilPerhitunganPolygonElevasi....................................................... Data KoordinatLokaldanElevasiCountur Tanah................................ Perbandinganhasilpengukuran TS dan Theodolite ...........................
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26 54 57 59 60 60 61 63 65 69
DAFTAR GAMBAR
Gambar
2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 3.2 3.3 3.3 3.4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18
Hal
Total Station....................................................................................... Theodolite .......................................................................................... Auto Level (Water Pass) ................................................................. PrismaPolygon danPrismaDetail ...................................................... Rambu/ Bak ukur ............................................................................... BM (Bench Mark) .............................................................................. Pengukuran Sudut Jurusan................................................................. Polygon Terbuka Terikat Sempurna .................................................. Poligon Tertutup ................................................................................ Contoh Hitungan Azimuth................................................................. Menentukan Besar Sudut Mendatar................................................... Pengukuran Jarak Langsung Daerah Datar........................................ Pengukuran Jarak Langsung Daerah Tidak Datar ............................. Pengukuran Jarak Optis ..................................................................... Menentukan Beda Tinggi Dengan Garis Visir................................... Bidang Nivo Dan Beda Tinggi .......................................................... Menentukan Beda Tinggi Suatu Titik................................................ Pengecekan Garis Bidik..................................................................... Contoh Profil Melintang .................................................................... Poligon Dengan Tujuh Kring............................................................. Peta Kabupaten Gresik....................................................................... Leand Scape Lokasi Penelitian .......................................................... GambarAlurPenelitian ....................................................................... JadwalPelaksanaan P enelitian........................................................... Sket Jalur Poligon .............................................................................. Setting Job TS .................................................................................... Pengecekan Alat Ukur ....................................................................... Pengecekan Prisma ............................................................................ Denah Poligon.................................................................................... Menentukan Job Pengukuran............................................................. Memasukkan Nilai BM...................................................................... Memasukkan Nilai BM...................................................................... Memasukkan Nilai Back Set.............................................................. Nilai Sudut Back Set TS .................................................................... Nilai Sudut Dan Tampilan Jarak........................................................ Pengukuran Fore Sight....................................................................... Memasukkan Nilai BM...................................................................... Membuat Job TS ................................................................................ Menghapus Job TS............................................................................. Memasukkan Nilai BM...................................................................... Pengukuran Detail.............................................................................. Pengukuran Detail..............................................................................
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4 4 5 5 6 7 8 9 10 13 15 16 16 17 19 20 20 21 23 24 25 28 29 30 34 34 35 36 37 38 39 39 40 40 40 41 42 42 43 43 44 44
4.19 4.20 4.21 4.22 4.23 4.24 4.25 4.26
Stake Out............................................................................................ Stake Out............................................................................................ Stake Out............................................................................................ Tampilan Hasil Stake Out.................................................................. Pengukuran Poligon ........................................................................... Pengecekan Alat Waterpass............................................................... Pengecekan Alat Waterpass............................................................... Pengukuran Dengan Alat Waterpass .................................................
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45 46 46 47 47 50 50 52
LAMPIRAN
1. Gambar General Lay Out 2. GambarLokasiPenelitian 3. GambarKountur Tanah LokasiPenelitian 4. GambarPengeplotanLetakBangunanPadaElevasiKountur
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