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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Rang Teknik Journal Journal of Innovative and Creativity
Retno Sri Waryani
Universitas Muhammadiyah Semarang
Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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ANALISA KEANDALAN WADUK DALAM MEREDUKSI BANJIR (STUDI KASUS BENDUNGAN TEMPURAN) Widiatmoko, Kukuh Wisnuaji; Aryana, Srie Adi Asa Mulia; Waryani, Retno Sri
Rang Teknik Journal Vol 8, No 1 (2025): Vol. 8 No. 1 Januari 2025
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v8i1.5712

Abstract

Bendungan Tempuran yang dibangun antara tahun 1911 hingga 1916 dan berlokasi di Desa Tempuran, Kecamatan Blora, berfungsi sebagai tampungan air utama dari sungau Tedun, Jomblang, Manggok. Bendungan Tempuran saat ini mengalami sedimentasi sehingga hanya mampu mengairi 420 Ha area persawahan dari potensi 820 Ha. Sehingga diperlukannya Reservoir Routing (Penelusuran Banjir) di Bendungan Tempuran yang merupakan metode dalam mengurangi dampak banjir dan meningkatkan efisiensi pengelolaan air di sekitar bendungan serta sebagai bahan tinjauan dan evaluasi untuk keandalan waduk dalam mereduksi banjir. Penelusuran banjir di Bendungan Tempuran ini dapat dipermudah menggunakan perangkat lunak HEC-HMS, yang dapat digunakan  untuk merencanakan dan menganalisis banjir. Tujuan dari penelitian ini adalah untuk menentukan debit banjir pada pelimpah serta mengevaluasi keandalan Waduk Tempuran selama periode ulang 2, 5, 10, 50, 100, 500, 1000, 0.5PMF, PMF. Dari penelitian ini diperoleh hasil debit banjir rencana : Q2 sebesar 10,54 m3/det, Q5 sebesar 14,93 m3/det, Q10 sebesar 18,33 m3/det, Q50 sebesar 27,22 m3/det, Q100 sebesar 31,60 m3/det, Q500 sebesar  43,22 m3/det, Q1000 sebesar 48,94 m3/det, Q0.5PMF sebesar 48,39 m3/det, QPMF sebesar 110,77 m3/det. Dan keandalan waduk dalam mereduksi banjir sebesar : Q2 sebesar 81,40%, Q5 sebesar 78,77%, Q10 sebesar 76,92%, Q50 sebesar 73,11%, Q100 sebesar 71,55%, Q500 sebesar 68,35%, Q1000 sebesar 67,06%, Q0.5PMF sebesar 67,18%, QPMF sebesar 54,45%.
Trashboom Ponton Adaptif sebagai Solusi Mitigasi Sampah pada Intake Glapan Barat, Daerah Irigasi Glapan, Kabupaten Grobogan Retno Sri Waryani; Ian Karunia Perkasa
Journal of Innovative and Creativity Vol. 6 No. 1 (2026)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v6i1.8628

Abstract

Floating debris accumulation at irrigation intakes often obstructs flow discharge and increases the risk of sluice gate damage, particularly in rivers with high water level fluctuations such as the Tuntang River. This study aims to design an adaptive Trashboom to mitigate debris accumulation at the West Glapan Intake. The method employed is applied engineering design utilizing 8-inch PVC pipes as pontoons and galvanized hollow iron as the main frame. The design results demonstrate that this pontoon Trashboom structure is capable of vertically adapting to flood water elevations and effectively diverting debris to the riverbank through a self-clearing mechanism caused by its diagonal placement. This solution offers construction cost efficiency and ease of maintenance compared to mechanical trashracks, while ensuring the continuity of irrigation water supply.
Analisis Ability To Pay and Willingness To Pay Trans Jateng (Koridor Penggaron-Godong) Muhammad Zubet; Retno Sri Waryani; Anton Sugiyarno
Journal of Innovative and Creativity (Joecy) Vol. 6 No. 2 (2026)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v6i2.13951

Abstract

Penelitian ini mengkaji kemampuan membayar (Ability To Pay/ATP), kesediaan membayar (Willingness To Pay/WTP), dan karakteristik pengguna BRT Trans Jateng koridor Penggaron-Godong. Hasil analisis menunjukkan bahwa ATP pengguna kategori umum didapatkan Rp 23.674,24 jauh melampaui tarif yang berlaku, yaitu Rp 5.000,00. Sebaliknya, nilai WTP lebih rendah, yakni Rp Rp 4.441,76 (umum), mengindikasikan adanya kesenjangan antara kemampuan dan kesediaan membayar yang dipengaruhi oleh persepsi terhadap kualitas layanan. Keywords: BRT, Trans Jateng, kemauan membayar, kemampuan membayar
Analisa Sebaran Genangan Banjir Akibat Keruntuhan Bendungan Tempuran Retno Sri Waryani; Sri Sangkawati Sachro; Sutarto Edhisono
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 1 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i1.68548

Abstract

The Tempuran Dam is one of the oldest dams in Indonesia and is currently experiencing a lot of damage, which could potentially lead to dam failure such as a dam collapse. To reduce the impact of losses resulting from dam collapses, it is necessary to analyze flood inundation patterns in the context of disaster mitigation. The dam failure analysis was modeled using HEC-RAS software with failure conditions due to overtopping and due to piping. The input in this modeling is the PMF plan discharge which is generated using HEC-HMS modeling with the HSS SCS method. The data required for HEC-HMS modeling are raster maps, land use maps, soil type maps and Hersfield method PMP rainfall plans. From the analysis results, it was found that the PMF planned flood was 115.54 m3/sec. The area of the flood inundation due to the collapse of the Tempuran Dam, the bottom piping condition was 2.61 km2 and the depth of the flood varied between 0 m to 3 m, where the area most deeply affected by the inundation was Purwosari Village, Blora Kota District. From the mapping results, the areas affected by flood inundation due to the collapse of the Tempuran Dam are Tempuran Village, Sendangharjo Village, Ngadipurwo Village, Purwosari Village, Patalan Village and Tempurejo Village. Where the fastest flood travel time is 48 minutes to Tempuran Village and the longest flood travel time is 5.25 hours to Tempurejo Village.
Co-Authors Anton Sugiyarno Aryana, Srie Adi Asa Mulia Ian Karunia Perkasa Kukuh Wisnuaji Widiatmoko Muhammad Zubet Sri Sangkawati Sachro Sutarto Edhisono