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All Journal JPNM : Jurnal Pustaka Nusantara Multidisiplin Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil
Agus Hari Wahyudi
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Religion Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Social Sciences

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Analisis Debit Air Alokasi dengan Debit Air Nyata di Bangunan Sadap pada Saluran Sekunder Daerah Irigasi Colo Timur Muhammad Nafis Hafizhan Gandang; Agus Hari Wahyudi; Solichin Solichin
Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Vol. 2 No. 4 (2024): Oktober: Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik S
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/konstruksi.v2i4.546

Abstract

The Colo Timur Irrigation Area covers 20,601.80 hectares with a main canal length of 64.15 km, passing through the regencies of Sukoharjo, Karanganyar, Sragen, and Ngawi. The water flow comes from the Wonogiri Serbaguna Dam, which is dammed by the Colo Weir in Sukoharjo. This irrigation area faces issues with uneven water distribution, and there is a need to check the water irrigation from the intake gates to conclude whether the operation and maintenance of the irrigation network are in accordance with standards. The study was conducted on the secondary canals of Geneng, Pulosari, and Krikilan, which are located upstream, midstream, and downstream, respectively. On the Geneng secondary canal, measurements were taken at B CT 5, Ge 1, and Ge 8 Ka. On the Pulosari secondary canal, measurements were taken at B CT 29, BPo 1, BPo 12 Ka, and BPo 12 Ki. On the Krikilan secondary canal, measurements were taken at B CT 40, Kk 1 Ka, and Kk 1 Ki. This study uses the Ratio of Water Distribution Implementation (RWDI) to determine the category of water distribution. The water discharge from the intake gates does not match the allocated water discharge. Factors causing the discrepancy in water discharge include (a) intake gates not being opened according to plan, (b) the presence of water pumps in the canals reducing irrigation water, and (c) the field operation system implementing water distribution rotations.
Evaluasi Ketinggian Bendungan Plumbon Kabupaten Wonogiri terhadap Debit Desain Tahun 2024 Aditya Eka Setiawan; Agus Hari Wahyudi; Cahyono Ikhsan
Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Vol. 2 No. 4 (2024): Oktober: Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik S
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/konstruksi.v2i4.555

Abstract

Indonesia has many dams that have been established since the Dutch Colonial era, including the Plumbon Dam located in Wonogiri Regency. During this time, many changes have occurred, including changes in flood discharge. The impact of climate change and land use change around the watershed has led to an increase in the frequency of extreme rainfall, which contributes to an increase in flood discharge. This study aims to evaluate the height of Plumbon Dam, assessing its safety against the new planned flood discharge. A 1000-year return period discharge and PMF analysis of Plumbon Dam was conducted for the year 2024. The calculation of rainfall R1000 and PMP using the Isohyet method, with the calculation of synthetic unit hygrograph using the HSS Nakayasu method. The calculation results obtained flood discharge Q1000 value of 73,33 m3/s and QPMF obtained at 107,75 m3/s. The required dam crest elevation was obtained, for Q1000 discharge + 227,43 m and QPMF + 226,96 m. The results of calculations using the 2024 design flood discharge are stated to experience overtopping of the 1000-year return period discharge because the flood water level exceeds the existing dam crest height of + 227 m and is safe against QPMF discharge.
Analisis Kehilangan Air Irigasi di Saluran Irigasi Colo Timur Ahmad Fahrudin; Agus Hari Wahyudi; Solichin Solichin
Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Vol. 2 No. 4 (2024): Oktober: Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik S
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/konstruksi.v2i4.563

Abstract

The analysis of water irrigation loss is very importance, as the loss of water in irrigation canals may have a detrimental impact on the overall performance of the irrigation system. The occurrence of water loss can be attributed to a multitude of factors, including damage to the channel, evaporation, seepage, and other phenomena that diminish the usability of the water in question. Consequently, an analysis of water loss can assist in determining the quantity of water lost, as well as the factors that contribute to the occurrence of water loss. This enables the implementation of preventive and corrective measures to enhance the efficiency of water usage. The objective of this study is to ascertain the value of water loss in the secondary channel of the East Colo Irrigation Area. The research methodology entails direct field measurement of water irrigation loss. The results demonstrate that the average value of the percentage of water loss from the Geneng Secondary channel is 11.07%, with a maximum water loss percentage of 23.66% and a minimum water loss percentage of 2.84%. In the Pulosari Secondary channel, the average value of the percentage of water loss is 13.82%. In the Krikilan Secondary channel, the maximum water loss percentage was observed to be 18.38%, while the minimum is 9.36%. The average value of the percentage of water loss was found to be 22.81%, with a maximum of 26.01% and a minimum of 19.22%. The factors that cause water loss obtained an average percentage value of water loss due to evaporation of 0.22% in the Geneng Secondary channel, 0.04% in the Pulosari Secondary channel, and 0.01% in the Krikilan Secondary channel. For the average percentage value of water loss due to seepage of 0.001% in the Geneng Secondary channel, 0.0001% in the Pulosari Secondary channel and Krikilan Secondary channel.
Efisiensi Saluran Irigasi di Daerah Irigasi Senden Kabupaten Sukoharjo Aslam Taqiuddin; Agus Hari Wahyudi; Sobriyah Sobriyah
Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Vol. 3 No. 2 (2025): April: Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sip
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/konstruksi.v3i2.789

Abstract

The irrigation efficiency is an important component on assessing the performance of an irrigation system. The analysis of irrigation loss is needed to obtain the amount of water lost along the channel. Water loss can be caused by a variety of factors, including water leakage along the canal, evaporation, and infiltration. This can certainly reduce the efficiency of water use. Irrigation a water loss analysis is very important to improve irrigation performance. This analysis will help you understand how much water is lost and what factors contribute to water loss. Based on this understanding, preventive measures can be taken and improvements can be made to increase productivity and water use efficiency. This research aims to evaluate the level of channel efficiency and measure the amount of water loss in the main channel in the Senden Irrigation Area.. The method of research implementation is to measure water discharge directly in the field. The result analysis showed that the average percentage of water loss in Senden main canal was 56.63%. Maximum water loss value was recorded at 60.86%, while the minimum value was 52.55%. Factors affecting water loss due to evaporation showed an average value of 0.0685%, while water loss due to seepage was recorded at a very small 0.0003%. For the channel efficiency value shows that an average percentage of 43%. It is obtained with a maximum channel efficiency of 47% and a minimum channel efficiency of 39%. However, the water balance analysis shows a maximum value of 11.45 m3 /second. While the minimum value is -0.04 m3 / second.
Evaluasi Kinerja Proyek Menggunakan Earned Value Analysis Dan Optimasi Time Cost Trade Off Riandita Dwi Apriliani; Setiono; Agus Hari Wahyudi
JPNM Jurnal Pustaka Nusantara Multidisiplin Vol. 4 No. 2 (2026): May : Jurnal Pustaka Nusantara Multidisiplin (ACCEPTED)
Publisher : SM Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59945/jpnm.v4i2.1215

Abstract

Proyek konstruksi memerlukan pengendalian waktu dan biaya yang terintegrasi agar pelaksanaan dapat berjalan sesuai rencana. Penelitian ini bertujuan untuk mengevaluasi kinerja proyek konstruksi gedung pendidikan menggunakan metode Earned Value Analysis (EVA) serta melakukan optimasi durasi dan biaya menggunakan metode Time Cost Trade Off (TCTO). Evaluasi dilakukan berdasarkan data rencana dan realisasi pada minggu ke-4 dan minggu ke-9. Hasil analisis menunjukkan bahwa kinerja biaya proyek masih dalam kondisi terkendali dan proyeksi biaya akhir sesuai dengan anggaran yang direncanakan. Selanjutnya, dilakukan simulasi percepatan proyek menggunakan beberapa skenario, yaitu penambahan tenaga kerja dan penambahan jam kerja lembur.Pada kondisi normal, proyek memiliki durasi 129 hari dengan biaya sebesar ±Rp5,21 miliar. Hasil optimasi menunjukkan bahwa percepatan dapat dicapai hingga 126 hari dengan variasi tambahan biaya. Alternatif terbaik diperoleh pada skenario penambahan tenaga kerja yang mampu mempercepat durasi sebesar 2,33% dengan tambahan biaya yang relatif efisien.
Co-Authors Adhi Susilo Adi Yusuf Muttaqien Aditya Eka Setiawan Ahmad Fahrudin Aminuyati Amri Irsyad Addina Arfan Yosanurahman Aslam Taqiuddin Bagas Mahadika Bintang Suncaka Cahyono Ikhsan Deandra Astried Farida Ayu Dewayanti Fredi Irawan Idham Yunanto Mamok Suprapto Muhamad Iqbal Tias Pratomo Muhammad Nafis Hafizhan Gandang Orien Kalam Simanjuntak Rahman Hakim Ardiansyah Raras Phusty Kesuma Riandita Dwi Apriliani Rintis Hadiani Rn Claresta Vania Setiono Siti Qomariyah Sobriyah Sobriyah Solichin Solichin Tinawati Tinawati Vika Arini