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Purnomoasri, RA Dinasty
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Civil Engineering, Building, Construction & Architecture

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ANALISIS KEBUTUHAN AIR IRIGASI PADA DAERAH IRIGASI TRANI Susanto, Rio; Mulyandari, Erni; Purnomoasri, RA Dinasty
Journal of Civil Engineering and Infrastructure Technology Vol 3 No 1 (2024): JCEIT
Publisher : Civil Engineering, Faculty of Engineering, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jceit.v3i1.3545

Abstract

Daerah Irigasi Trani merupakan salah satu bendung yang berada di Provinsi Jawa Tengah tepatnya berada di Kabupaten Sukoharjo dan kabupaten Karanganyar, seiring pertumbuhan penduduk terjadi perubahan tata guna lahan menjadi daerah permukiman. Sehingga diperlukan analisis kebutuhan air irigasi pada Daerah Irigasi Trani. Tujuan dari penelitian ini adalah untuk mengetahui jumlah aset prasarana / bangunan fisik di jaringan irigasi, untuk mengetahui luas areal Daerah Irigasi Trani, untuk mengetahui besarnya jumlah kebutuhan air irigasi maksimum dan kebutuhan air irigasi minimum pada Daerah Irigasi Trani dengan perhitungan manual (metode KP-01). Dari hasil penelitian didapatkan hasil antara lain Bendung Trani memiliki total 237 aset bangunan prasarana fisik, Sebagian besar prasarana fisik tersebut dalam kondisi baik dan masih dapat berfungsi dengan baik. Luas Areal Daerah Irigasi Trani didapatkan hasil seluas 1486,7 Ha menggunakan bantuan google earth. Kebutuhan air irigasi maksimum tanaman padi diperoleh sebesar 5,99 m3/detik pada periode pertama dan pada periode kedua bulan Desember, Kebutuhan minimum air tanaman padi diperoleh sebesar 2,16 m3/detik yaitu pada periode pertama bulan Februari. Sedangkan untuk perhitungan Kebutuhan air irigasi maksimum tanaman palawija terjadi pada periode kedua bulan Juli yaitu sebesar 4,32 m3/detik dan kebutuhan air irigasi minimum tanaman palawija terjadi pada periode kedua bulan Oktober yaitu sebesar 0,82 m3/detik
Studi Evaluasi Saluran Drainase Studi Evaluasi Saluran Drainase Sebagai Upaya Penanggulangan Banjir Di Dusun Badran Asri Kabupaten Karanganyar: Saluran Drainase, Banjir, Genangan, Alternatif Husaini, Fahri; Wijayanti, Paska; Purnomoasri, RA Dinasty
Journal of Civil Engineering and Infrastructure Technology Vol 3 No 2 (2024): JCEIT
Publisher : Civil Engineering, Faculty of Engineering, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jceit.v3i2.3916

Abstract

Badran Asri Hamlet in Cangakan Village, Karanganyar District, often experiences flooding and inundation, this is due to the drainage channels being classified as poor and starting to experience a decline in the quality of the drainage channels so that they are unable to accommodate runoff water. The aim of this research is to evaluate flood management efforts and the problems that exist in the area. The method used in this research is quantitative descriptive, namely by first conducting a survey at the research location and then analyzing the data obtained. After evaluating the 10-year flood discharge of 25 channels in Badran Asri Hamlet, Cangakan Subdistrict, there were 13 channels that did not meet domestic flood discharge capacity and 12 channels that still met domestic flood discharge capacity. As an alternative, improvements need to be made by re-planning by increasing the capacity of the drainage channel in the form of a new channel as a flood management solution so that a channel discharge is obtained that is able to meet the domestic flood discharge capacity.
ANALISIS STABILITAS DINDING PENAHAN TANAH PADA LERENG SPILLWAY BENDUNGAN JLANTAH MENGGUNAKAN SOFTWERE PLAXIS Abianto, Reki; Purnomoasri, RA Dinasty; Wibisono, Nur Muarif
Journal of Civil Engineering and Infrastructure Technology Vol 4 No 1 (2025): JCEIT
Publisher : Civil Engineering, Faculty of Engineering, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jceit.v4i1.4999

Abstract

The Jlantah Dam is located in Jatiyoso District, Karanganyar Regency, Central Java. This dam construction has a total storage capacity of 10.97 million cubic meters, with a height of 70 meters from the riverbed, a length of 404 meters, a width of 12 meters, and a crest elevation of +690 meters. The purpose of this study is to examine the slope stability before reinforcing with retaining walls, the slope stability after reinforcement, and the sliding stability, overturning stability, and bearing capacity of the retaining walls. According to SNI 8640:2017, geotechnical design requirements define the slope safety factor. If the safety factor (SF) is more than 1.5, the slope is considered safe, whereas if the safety factor (SF) is less than 1.5, the slope is considered unsafe. The results of the slope stability analysis using PLAXIS 2D V20 software without retaining wall reinforcement show an SF = 1.253. The slope with reinforcement achieved an SF = 1.640. Using Geo5 2020 software with the Bishop method, the SF is 1.70, and with the Fellenius method, the SF is 3.36. For the retaining wall stability using the manual method, the sliding stability SF = 3.90, the overturning stability FS = 7.05, and the bearing capacity of the retaining wall FS = 12.25. Meanwhile, using Geo5 software, the sliding stability FS = 2.51, the overturning stability FS = 1.81, and the bearing capacity of the retaining wall FS = 3.36.
Co-Authors Abianto, Reki Erni Mulyandari Husaini, Fahri Paska Wijayanti Susanto, Rio Wibisono, Nur Muarif