ESTD PERPUSTAKAAN UNTAD
ESTD PERPUSTAKAAN UNTAD
| JudulANALISIS KALIBRASI BANGUNAN ALAT UKUR AMBANG LEBAR PADA BANGUNAN BAGI SADAP BGKn.13 D.I GUMBASA |
| Nama: FARADILLA YUNIAR |
| Tahun: 2025 |
| Abstrak Daerah Irigasi Gumbasa di Kabupaten Sigi adalah sebuah sistem irigasi yang bersifat teknis, dan pasca gempa 28 september 2018 beberapa segmen telah menjalankan rekonstruksi dan rehabilitasi infrastruktur berupa bangunan maupun saluran. Penggunaan Bangunan Ukur Ambang Lebar yang terkait dengan pintu sorong sebagai alat ukur debit harus melalui proses kalibrasi untuk memastikan akurasi pengukurannya, serta faktor akibat adanya sedimentasi pada bagian hulu bangunan peluap, guna meningkatkan efisiensi distribusi air yang menjadi sumber kehidupan bagi masyarakat sekitar. Dengan mengambil sampel pada bangunan bagi sadap BGKn.13 yang berlokasi di desa Sibalaya Utara, Kecamatan Sidondo, Diharapkan hasil penelitian ini dapat diperoleh dengan mengukur kecepatan aliran menggunakan current metter pada satu titik kedalaman, untuk menghitung koefisien debit (Cdkalibrasi) secara aktual. Hal ini dilakukan dengan membandingkan debit aktual (Qaktual) dan debit teoritis/standar (Qteoritis) berdasarkan persamaan lengkung debit, serta regresi polinomial. Sehingga mendapatkan presentase kinerja bangunan alat ukur ambang lebar yaitu rata- rata -471,69% + 100% = -371,69% pada BGKn.13 Kn diklasifikasikan Kinerja Sangat Kurang , - 75,61% + 100% = 24,39% pada BGKn.13 Tn Sekunder diklasifikasikan Kinerja Sangat Kurang, dan -41,03 + 100%= 58,97% pada BGKn.13 Kr diklasifikasikan Kinerja Cukup. Persamaan debit kalibrasi akibat faktor sedimentasi pada setiap bangunan ambang lebar yaitu Qkalibrasi = 1,71 Cd CdKalibrasi bc h’3?2 dengan koefisien debit kalibrasi 7,84 pada BGKn.13 Kn, 1,57 pada BGKn.13 Tn, dan 2,02 pada BGKn.13 Kr sehingga dapat digambarkan tabel dan grafik lengkung debit dari persamaan debit kalibrasi. Kata Kunci : Ambang Lebar, Debit Aktual, Debit Teoritis/Standar, Koefisien Debit Kalibrasi, Lengkung debit, Sedimentasi. CALIBRATION ANALYSIS OF THE BUILDING WIDTH MEASUREMENT TOOL ON THE BUILDING OF BAGI SADAP BGKn.13 D.I GUMBASA Faradilla Yuniar, Muhammad Galib Ishak, Vera Wim Andiesse. ABSTRACT The Gumbasa Irrigation Area in Sigi Regency is a technical irrigation system. After the September 28, 2018 earthquake, several segments have carried out reconstruction and rehabilitation of infrastructure in the form of buildings and channels. The use of the Wide Threshold Measurement Building associated with the sorong door as a discharge measurement tool must go through a calibration process to ensure measurement accuracy, as well as factors due to sedimentation upstream of the overflow building, to improve the efficiency of water distribution which is a source of life for the surrounding community. By taking samples at the BGKn.13 tapping divider building located in Sibalaya Utara village, Sidondo sub-district, it is expected that the results of this study can be obtained by measuring the flow velocity using a current meter at one point of depth, to calculate the actual discharge coefficient (Cdkalibrasi). This is done by comparing the actual discharge (Qaktual) and the theoretical/standard discharge (Qteoritis) based on the discharge curve equation, and polynomial regression. To get a percentage of the performance of the wide sill measuring instrument building, namely on average -471.69% + 100% = -371.69% at BGKn.13 Kn is classified as Very Poor Performance, -75.61% + 100% = 24.39% at BGKn.13 Tn Secondary is classified as Very Poor Performance, and -41.03 + 100% = 58.97% at BGKn.13 Kr is classified as Fair Performance. The equation of calibration discharge due to sedimentation factors in each wide threshold building is Qkalibrasi = 1.71 Cd CdKalibrasi bc h'3?2 with a calibration discharge coefficient of 7.84 at BGKn.13 Kn, 1.57 at BGKn.13 Tn, and 2.02 at BGKn.13 Kr so that a table and graph of the discharge curve can be drawn from the calibration discharge equation. Keyword: Threshold Width, Actual Discharge, Theoretical/Standard Discharge, Calibration Discharge Coefficient, Curved discharge, Sedimentation |