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All Journal Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Journal of Degraded and Mining Lands Management Proceedings ACES (Annual Civil Engineering Seminar) Seminar Nasional Lahan Suboptimal Jurnal Ilmiah Rekayasa Sipil Unri Conference Series: Community Engagement SAINSTEK Jurnal Teknologi & Rekayasa Sipil
Andy Hendri, MT, Andy
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Journal : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Analisa Kapasitas Embung Untuk Suplai Air Irigasi (Studi Kasus : Desa Sendayan , Kecamatan Kampar Utara) Irpan, Apdani; Sujatmoko, Bambang; Hendri, Andy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The problem of lacking of water for agricultulal irrigation in the dry season is a problem happened in Sendayan Village, North Kampar District, Kampar Regency. To solve this problem, the construction of pond in form of detention pond is planned.  The capacity of detention pond is determined by doing an analysis of water availability, that is dependable flow method of FJ.Mock and the water required of irrigation, so that from both analysis mentioned before, it will be got a condition of water balance, that will show the months of lacking water.  The result of research shows that the water required of irrigation on maximum condition is 0,210 m3/second in May and for the maximum dependable flow is 0,547 m3/second in December. If it is related with the discharge of water required of irrigation with the availability of water, so it will be appeared that the months when water lacks (February, June, Juli, August, September and October) and the months when maximum lacking of water happened on second period of June that is 0,139 m3/second. The capacity of detention pond for the gate operation time of 4, 5, and 6 hours is 8,24 hectare, 10,30 hectare, and 12,36 hectare with the depth of detention pond is 2 metre and the wide of farm irrigated is only 1,90 hectare, so that the analysis of storage capacity of detention pond with the existing area is 1,90 hectare and the depth of detention pond is 2 metre carried out so that the result shows that the wide of farm which can be irrigated for the gate operation time of 4, 5, and 6 hours is 93,1 hectare, 88,1 hectare, and 85 hectare.   Key word : detention pond, dependable flow, capacity of detention pond, water required, lack of water.
Analisis Prediksi Pasang Surut Air Laut Di Perairan Makassar Dengan Metode Admiralty Rizky, Indah Aulia; Hendri, Andy; Fauzi, Manyuk
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

This research aims to determine the beginning of the observation time that produces the most accurate prediction data. The pasut prediction method used is admiralty method with 15 days observation data as much as 115 variations of data, then simulation data will be verified against the simulation data. Based on the results of the analysis of root mean square error (RMSE) value for each initial variation of the observation time, then the beginning of the most accurate observation time based on the smallest error value is obtained at 29.47 cm on the 15 hijri ladder (full moon phase). Nilai Formzahl average obtained 2.11 so that the type of pasut at the location of this study is skewed daily (Mixed tide prevailing diurnal). The results of the correlation coefficient analysis (r) of each variation of the initial time of observation show that the highest correlation value is on the 16th of Hijriah of 0.43, meaning that it has a moderate correlation. Keywords: beginning of time, admiralty method, correlation, formzahl, hijri
Analisis Neraca Air Lahan Gambut Pada Sub Khg 3 Pulau Rangsang Provinsi Riau Dengan Metode Thornthwaite Mather Untuk Memperkirakan Debit Limpasan Permukaan Gunandar, Arifa; Sutikno, Sigit; Hendri, Andy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Rangsang Island is described as a peat island located on the east coast of Riau Province. Due to the high conversion of peatlands, the peat of Rangsang Island is degraded and continuously emits emissions. Efforts to restore degraded peatlands are implementing good water management. In assessing the condition of the peatland water system, this study will analyze the water balance in the Peat Hydrological Unit (PHU) of Rangsang Island to determine the condition and quantity of water contained in the peatland. The model used in peatland water balance modeling is the Thornthwaite & Mather Water Balance (TMWB model). The analysis and discussion will examine the condition of the peatland water balance in the Rangsang Island PHU which is calculated using the land water balance method. From the results of this study, the condition of the water balance of the peatlands in Sub PHU 3, Rangsang Island, is dominantly experiencing deficit months. The deficit months occurred in January, February, March, May, July, August, October and December. The total water deficit is -104.20 M3. While the wet months occur in April, June, September and November. The total surplus of water is 26.15 million m3. The total water deficit for a year when compared to the total surplus of water for a year there is still a big enough difference so that a good and sustainable water-compliant system is needed on peatland Sub PHU 3 Rangsang Island, especially in the Rangsang Island KHG in general in the future.Keywords: Deficit, Peat Hydrological Unit, Peat land, Surplus, Thornthwaite & Mather Water Balance
Analisis Neraca Air Pada SUB-KHG 1 Pulau Padang, Kabupaten Kepulauan Meranti, Provinsi Riau Putri, Tasha Ramadhery; Sutikno, Sigit; Hendri, Andy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

More than 40% of Padang Island area has been concessioned by the Ministry of Forestry to PT. RAPP. The construction of large-scale canalization of peatland utilization adopted by the company’s concessions causes disruption of the water balance. Research at Peat Hydrological Unit (PHU) Padang Island isnecessary so that peatland protection and restoration become more efficient and effective. The method used in this study is Thornthwaite Mather Water Balance (TMWB). Water balance depicted in a temporal graph showing the deficit/surplus status in every month and Geographic Information System (GIS) used for spatialdata analysis at PHU Padang Island. The results of land water balance analysis in PHU at 2020, shows that the highest drought (deficit) level was in the Sub-PHU 1 on February with the 26.83 million m3. For the highest wetness (surplus) level was in the Sub-PHU 1 on November with 31.34 million m3.Keywords : deficit, Peat Hydrological Unit, surplus, Thornthwaite Mather Water Balance, water balance.
Pengaruh Simulasi Awal Waktu Pengamatan Terhadap Hasil Prediksi Pasang Surut Di Perairan Kotabaru Menggunakan Metode Admiralty Handika, Syusella Kalvi; Hendri, Andy; Rinaldi, Rinaldi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

This study examines variations in the initial time of observation based on the Hijri calendar which aims to determine the most accurate time to make observations in the field. The analysis of this research used the Admiralty method with hourly observation data for 15 days. The data uses tide data in Kotabaru waters and simulated against two hundred and forty-three time variations. The results of the data analysis show that the smallest average root mean square error (RMSE) resulting from the 15-day tide prediction is 16.68 cm, which is the prediction of the start date of the 16 Hijri calendar. So that the most appropriate time to make tidal observations in the field for tidal predictions in Kotabaru waters is on the 16th of each Hijri month or during the fourth moon phase (humpback month). The value of the formzhal number obtained is 0.66, so the tidal type in the study location is included in the semi-diurnal tide type classification.Key words: beginning time, admiralty method, RMSE.
Analisis Indeks Kekeringan DAS Siak Menggunakan Metode Keetch Byram Drought Index (KBDI) Ikhsan Aulia Rudy; Manyuk Fauzi; Andy Hendri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Riau Province is one of the drought stricken provinces in Indonesia. Droughts can adverse impacts suchas land fires. Based on data from the Ministry of Environment and Forestry in 2013, Riau Province hasthe most hotspot in Indonesia with the 5,128 hotspot. The meteorological drought index can be used asinformation for policymaking as an effort to prevent land fires. This research was conducted in Siakwatershed of Riau Province using KBDI method and length of data used last 10 years. The analysis wasused rain data recorded from four rain stations in the Siak watershed. The result of the analysis showsthat the highest drought index value of KBDI method occurred in Petapahan Baru Station, April 2015which was 1965,919 with the classification of Extreme. Based on the correlation of drought index of Siakwatershed with hotspot data, the highest value of correlation is 0,859 in 2009 with a very strong category.Keywords: Hotspot, meteorological drought index, KBDI.
Pemilihan Metode Intensitas Hujan Yang Sesuai Dengan Stasiun Hujan Pekanbaru Febrira Ulya Astuti; Andy Hendri; Yohanna Lilis Handayani
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The rainfall intensity is the depth of water per unit time. Rainfall intensity can also be approached by using methods of Mononobe, Van Breen, Haspers Weduwen and Bell Tanimoto. The result of those methods would be compared with intensity of ARR data. The research was conducted to the Siak basin at Pekanbaru rainfall station. Error square mean root peak-weight test would be applicated to calculate the deviation. The result of this research showed that Haspers Weduwen and Van Breen method fitted the observed ARR data. The return period years of 2, and 5 resulted in rainfall intensity 6,4219 and 7,9265 by using error square mean root peak-weighted test. Rainfall intensity for the return period is the method of Haspers Weduwen. The return period years of 10, 25, 50 and 100 resulted in rainfall intensity 8,3962; 14,6991; 20,9080 dan 27,7208 by using error square mean root peak-weighted test. And rainfall intensity for the return period is the method of Van Breen. In general, the method according to the station data Pekanbaru is the method of Van Breen. Because it has an average error smallest than the other methods.  Keywords: Rainfall intensity, Mononobe, Van Breen, Haspers Weduwen, Bell Tanimoto, peak weighted root mean square error test.
Studi Kelayakan Investasi Pembangunan Upstream Infrastructure Air Bersih Pdam Kota Pekanbaru Tahun 2015 - 2035 Ito Tandika; Ari Sandhyavitri; Andy Hendri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Pekanbaru city is the capital of Riau province consisting of 12 sub-district with a total population in 2013 was 1.018.750 inhabitants. Currently PDAM "Tirta Siak" of Pekanbaru City served 10% of the water demand within the city area. The PDAM production capacity was 620 liters/sec. The purpose of this study are (i) to forecast the water demand in period of 2015-2035, (ii) calculate the investments of upstream infrastructure, and (iii) analyze the upstream infrastructure financial aspects using Benefit Cost Ratio(BCR) method, Net Present Value (NPV), Internal Rate of Return (IRR), Break Even Point (BEP), Payback Period, and Sensitivity Analysis.Result of this studies are (i) Pekanbaru City water demand for 2015 approximate to 4.056 liters/second and continued to rise become 9.176 liters / sec on 2035, (ii) the upstream infrastructure investments is divided into two phases with an investment for phase 1 is Rp. 571.059.228.117 and for phase 2 is Rp.602.641.569.713, and (iii) financial aspects values are BCR 1,37; NPV Rp.900.869.707.831; IRR 15.93% ; payback period is 18 years 4 months and 3 days ; and BEP value is 515.031.471 m3 of water that must be sold.Keyword : upstream infrastructure, water demand, investments, financial aspects
Kajian Pasang Surut Dengan Metode Least Square Di Perairan Kabupaten Bengkalis Muhammad Yoganda; Andy Hendri; Imam Suprayogi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Analysis of tidal components can be done with several methods, namely least square method, admiralty and so forth. The least square method is a tidal harmonic analysis method used to analyze and to predict tides in this research. Daily observation data of 15 days in each hour will be simulated against 158 variations of time using Hijri calendar, to find out the initial variation of observational data that best matches the tidal prediction in Bengkalis waters. The analysis was carried out using tidal data in the waters around the port of Roro Bengkalis. The analysis results show that the smallest average root mean square error (RMSE) value is on the initial variation of the 30th data for verification of the simulation data. The 30th days of the Hijri calendar is in the new moon phase.The tidal type of the location of the research based on the value of the Formzahl number was classified at the double mixed tide prevailing type (mixed tide prevailing semidiurnal).Keywords: formzahl, least square method, RMSE, tide prediction
Kesesuaian Model Hidrograf Satuan Sintetik (HSS) Berdasarkan Karakteristik Daerah Aliran Sungai Di Wilayah Sungai Indragiri-Akuaman Tri Setia Budi; Andy Hendri; Manyuk Fauzi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Synthetic Unit Hydrograph is a simple and practical method to analyze the design flood discharge of a watershed. This method can be used for watershed do not have the tools of Automatic Water Level Recorder (AWLR) and discharge recording.The method can analyze only the flood discharge based on the basin characteristics. Antokan, Andaman, Tiku, Gasang Gadang’s basin are some watershed flood discharge to be analyzed in this study. The characteristics of the sixth watershed obtained using Digital Elevaltion Digital Model (DEM) data and then be processed using Geographic Information System (GIS). GIS will produce the output of the watershed characteristic data needed to calculate the Syntethic Unit Hydrograph flood discharge, there were Snyder, SCS, Gamma I, and Nakayasu’s methodes. The method will be compared to get the most optimum method and can be applied in the watershed of reviews with HDRO close to 1 mm and a volume error of less than 5%. In the case study can be viewed unit hydrograph can be applied to the Antokan, Andaman, Tiku, Gasang Gadang’s watershed is SCS and Nakayasu’s method with HDRO obtained 1 mm and volum error less than 5%.Keywords: Basin characteristics, GIS, Synthetic Unit Hydrograph
Co-Authors ', Rinaldi Abryan Rakasiwi Adiyka Fasanovri Asfa Ahmad Muhammad Akhiar Junaidi Akhiar Junaidi, Akhiar Alex Kurniawandy Arafat, Muhammad Ari Sandhyavitri Astari, Kemala Fitri Bambang Sujatmoko Bochari - Delta, Novia Enno Yuniarto Fauzi, Manyuk Febrira Ulya Astuti Fitria Sari Gunandar, Arifa Haji Gussafri Handika, Syusella Kalvi Herdiansyah Herdiansyah Ikhsan Aulia Rudy Imam Suprayogi Irpan, Apdani Ito Tandika Joleha, Joleha Kemala Fitri Astari Kusairi, Muhammad Mudjiatko, Mudjiatko Muhamad Yusa Muhammad Akbar Muttaqin Muhammad Arif Muhammad Arrafi Irsyad Muhammad Sukri Muhammad Yoganda Nafisah Nafisah Nerrissa Arfiana Nurul Qomar Pratama, Rizki Putri, Tasha Ramadhery Rahmatul Firdaus, Rahmatul Ramadhani Harahap Rinaldi Rinaldi Rinaldi Rinaldi Riyon Andeska Putra, Riyon Andeska Rizky, Indah Aulia Rosmiati Ahmad Saldanela Saldanela Saragi, Setiadi Siswanto Sri Djuniati Suprasman Suprasman Sutikno, Sigit Syamsul Arifin Tri Setia Budi Wendi Nofriandi Widya Safitri Winda Indriani Yohanna Lilis H Yudha Andestian, Yudha Zahra, Vivi Widia