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All Journal KEAIRAN JURNAL TEKNOLOGI LINGKUNGAN Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Teras Jurnal SIKLUS: Jurnal Teknik Sipil Journal of Engineering and Scientific Research (JESR) Jurnal Profesi Insinyur Universitas Lampung
Endro Prasetyo Wahono
Universitas Lampung
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Transportation Other

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Perencanaan Drainase Berbasis Eco-Technology ditinjau dari Migrasi Ular (Studi Kasus: Suaka Rhino Sumatera, Taman Nasional Way Kambas) Herison, Ahmad; Romdania, Yuda; Wahono, Endro Prasetyo; Fahri, Muhammad Yusrizal
Jurnal Teknologi Lingkungan Vol. 21 No. 2 (2020)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.781 KB) | DOI: 10.29122/jtl.v21i2.3349

Abstract

ABSTRACTWay Kambas National Park (TNWK) is one of the conservation areas in Lampung Province. The National Park functions to protect, preserve various kinds of animals and conservation. Design based on Eco-Technology is an absolute requirement for the sustainability of the region. This study aims to plan Eco-Technology-based drainage from road construction in the Sumatra Rhino Sanctuary (SRS), Way Kambas National Park, with snake objects. Every infrastructure development, such as drainage, must pay attention to the lives of wild animals such as snakes. Planning starts with calculating hydrological analysis to produce a debit plan with a rational method. Analysis of snake migration is done to determine the behavior and migration of snakes. Based on the calculation results there is no flood point from the planning of cross-section D1-D8 with the width of the channel width (b) = 20 cm, water depth (h) = 14.47 cm, peak width (B) = 220 cm, cross-section = 10° and cross-section material used is soil. With the drainage concept, the migration of snakes from one span to another is not disturbed to maintain the balance of the natural ecosystem. The conclusion is that the drainage design obtained is getting sloping, so the drainage conditions are better and friendly to snakes.Keywords: Eco-Technology, drainage, conservation, Way Kambas National Park, snake migrationABSTRAKTaman Nasional Way Kambas (TNWK) merupakan satu diantara kawasan konservasi yang berada di Provinsi Lampung. Taman Nasional berfungsi untuk melindungi, melestarikan berbagai macam satwa dan konservasi. Desain yang berbasis Eco-Technology merupakan syarat mutlak untuk keberlanjutan kawasan itu. Penelitian ini bertujuan untuk merencanakan drainase berbasis Eco-Technology dari suatu pembangunan jalan di Suaka Rhino Sumatera (SRS), Taman Nasional Way Kambas dengan objek ular. Setiap pembangunan Infrastruktur seperti drainase harus memperhatikan kehidupan satwa liar seperti ular. Perencanaan dimulai dengan melakukan perhitungan analisis hidrologi untuk dapat menghasilkan debit rencana dengan metode rasional. Analisis migrasi ular dilakukan untuk mengetahui perilaku dan migrasi ular. Berdasarkan hasil perhitungan tidak terdapat titik banjir dari perencanaan penampang D1-D8 dengan ukuran lebar dasar saluran (b) = 20 cm, kedalaman air (h) = 14,47 cm, lebar puncak (B) = 220 cm, kemiringan penampang = 10° dan bahan penampang yang digunakan adalah tanah. Dengan adanya konsep drainase tersebut, migrasi ular dari bentang satu ke bentang lainnya tidak terganggu sehingga dapat menjaga keseimbangan ekosistem alam. Kesimpulannya adalah desain drainase yang didapat makin landai, maka kondisi drainase makin baik dan ramah terhadap ular.Kata kunci: Eco-Technology, drainase, konservasi, Taman Nasional Way Kambas, migrasi ular
The ratio of Indonesia BMKG agency and TRMM satellite Rainfall Data in West Java Province by Using Statistical Parameter and Correlation Analysis Rian Alfian; Ahmad Zakaria; Endro Prasetyo Wahono; Dyah Indriana Kusumastuti; Ahmad Herison
Journal of Engineering and Scientific Research Vol. 3 No. 2 (2021)
Publisher : Faculty of Engineering, Universitas Lampung Jl. Soemantri Brojonegoro No.1 Bandar Lampung, Indonesia 35141

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (927.393 KB) | DOI: 10.23960/jesr.v3i2.82

Abstract

Weather observations can be done in two ways, namely weather observations based on weather stations and based on remote sensing such as satellites. One of these weather study data is rainfall measured from the BMKG rain observation post and TRMM satellite observations. To see the pattern of the distribution of rain that has occurred, the two weather observations can be connected as a reference for the distribution of rain. The purpose of this study was to analyze the correlation value of rainfall data between BMKG and TRMM by looking at the comparison graph and analyzing the comparison of statistical parameters. This research was conducted using daily rainfall data from 1998-2018 at four rain stations in West Java Province and taking descriptive decisions in the form of pictures and graphs in the form of daily, monthly and annual data. Based on the analysis results, the largest correlation value is in the annual cumulative with a value of 0,88-0,94, the smaller the number of days, the smaller the correlation value. The BMKG and TRMM rainfall data have relatively the same pattern, but the maximum data have differences so that it reduces the correlation value. In the Statistical Parameter analysis, it can be stated that the difference in the values ??of the statistical parameters is directly proportional to the daily cumulative, that the difference in the median and mean values ??in the BMKG and TRMM data is greater in the data with a larger cumulative. Meanwhile, for linear regression analysis, it was found that the greatest value was the cumulative 1-year value with a coefficient of determination from 0,78 - 0,89.
Sedimen Prediktor dalam Analisa Debit Dominan Endro P Wahono
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 17, No 2 (2013): Edisi Agustus 2013
Publisher : UNIVERSITAS LAMPUNG

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Abstract

One of the most important variables involved in river-channel formation is the channel-formingdischarge, which is well known as Dominant Discharge. Since discharge-sediment relation withinriver morphology process is quite dynamic and rather difficult to predict, it will be helpful to havea kind of representative discharge from analytical point of view.This paper discusses on how exponent (n) of sediment predictor affect dominant discharge deriva-tion. Two sediment predictors were used on this paper namely Engelund Hansen (EH) and Meyer-Peter-Muller (MPM). The result shows that, after deriving equations, the dominant discharge (Q d)could be explained as a maximum distribution value of piQ n/3 representing combination parameterof both probability and sediment predictor. Dominant discharge was then calculated based onthose two predictors and compared with average discharge, frequent discharge as well as bankfulldischarge. The result presents that analytical approach using EH predictor provides closer valueto the bankfull discharge.
Perencanaan Pintu Pelimpah Bendungan Margatiga Kabupaten Lampung Timur Provinsi Lampung Lidya Susanti; Eddy Purwanto; Endro Prasetyo Wahono
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

AbstractSpillway has an important role for both operating rules as well as a safety structure, particularly during flood, of a dam. In Margatiga Dam, gated-spillways were designed in order to regulate discharge to downstream mainly for irrigation purpose. The Margatiga Dam, located in East Lampung Regency, is a rock fill type of dam with vertical core, formed from specific clay materials. The dam was designed to supply the Sragi’s irrigation area mostly located in East Lampung Regency, which has more than 80% of its citizen are farmers. The main objective of this research is to design gate leaf structure of the spillway, in the form of skin plates and beams that fulfill safety requirement of the structure. Design was performed for two conditions, which are during normal water level, and during the flood conditions. Based on those two conditions, the most extreme forces was selected as the basis of the structural design. The loads, which are used for design, consist of hydrostatic pressure, sediment pressure, dynamic pressure during the earthquake, and the hydrodynamic pressure. This research provide dimension of the gate leaf of the concerned spillway. Thickness of the steel plates is 13 mm, meanwhile the dimension of girder plates are 900x300 mm, 860x100 mm, and 900x150 mm, for the horizontal beams, vertical beams, and the edge of the beams respectively. Thickness of flense and web for all the beams are designed to be 13 mm and 5 mm respectively. Design of the gate provide maximum deflection of the beams for 10.06 mm and maximum deflection of the plates is 5.16 mm, which are considered to fulfill the safety requirement for the conditions during probable maximum discharge (QPMF).Keywords : spillway, gate leaf, QPMF, girder plate
Analisis Perbandingan Kedalaman Gerusan Lokal (Local Souring) Di Hilir Bangunan Pelimpah (Ogee and Stepped Spillway) Dengan Model Fisik 2D Eko Adi Saputra; Endro Prasetyo Wahono; Ahmad Zakaria
Jurnal Rekayasa Sipil dan Desain Vol 9, No 3 (2021): Edisi September 2021
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

AbstrakSpillway atau disebut dengan bangunan pelimpah merupakan bangunan air yang memiliki fungsi untuk mengalirkan debit banjir yang masuk ke dalam waduk. Dalam perencanaan suatu bangunan air diperlukan penelitian terdahulu mengenai masalah penggerusan lokal (Local Scouring) yang terjadi akibat adanya kecepatan air dan turbulensi yang melampaui daya tahan dari dasar saluran pada bagian hilir bangunan. Dari analisis hidrolika penelitian ini menggunakan desain bangunan pelimpah Ogee and Stepped dengan model fisik 2-D dan sedimen yang digunakan adalah pasir dengan diameter seragam yaitu 1,8 mm atau lolos ayakan no. 16. Penelitian ini menunjukkan 5 kali pengamatan pola gerusan lokal di hilir bendung pada setiap percobaan selama 25 menit. Pengamatan gerusan meliputi besarnya debit dan kedalaman gerusan maksimum yang terjadi pada hilir bendung. Pada bangunan pelimpah Ogee Spillway gerusan maksimum (dsmax) terjadi pada ketinggian di hulu (H0) 3 cm sebesar 0,097 m dengan Lds sebesar 0,17 m dari hilir pelimpah. Pada bangunan pelimpah Stepped Spillway gerusan maksimum (dsmax) terjadi pada ketinggian di hulu (H0) 3 cm sebesar 0,125 m dengan Lds sebesar 0,09 m dari hilir pelimpah. Hal ini menunjukkan bahwa semakin besar debit aliran, maka semakin besar kedalaman gerusan yang terjadi.  Kata kunci : Pelimpah Ogee and Stepped Spillway, Gerusan Lokal, Sedimen.
Evaluasi Data Curah Hujan BMKG dengan TRMM (Studi Kasus Stasiun BMKG di Provinsi Kepulauan Bangka Belitung) Ikhfan Kurniyawan; Ahmad Zakaria; Endro Prasetyo Wahono; Geleng Perangin Angin
Jurnal Rekayasa Sipil dan Desain Vol 8, No 4 (2020): Edisi Desember 2020
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

Indonesia merupakan negara dengan iklim tropis yang memiliki dua musim, musim kemarau dan musim hujan. Pengukuran curah hujan di Indonesia dilakukan oleh beberapa badan, salah satu diantaranya adalah Badan Meteorologi Klimatologi dan Geofisika (BMKG) dan juga TRMM NASA. Tujuan penelitian ini adalah untuk menghitung nilai korelasi data curah hujan antara TRMM dan BMKG dengan mencari persamaan hubungan antar data dan menganalisis data curah hujannya. Data yang digunakan merupakan curah hujan harian dari tahun 1998-2012. Data dianalisis dalam bentuk data 7 harian, bulanan, dan tahunan. Berdasarkan hasil analisis didapatkan jika data curah hujan yang diukur oleh TRMM memiliki kesamaan pola distribusi temporal curah hujan yang diukur oleh BMKG. Nilai korelasi antara data TRMM dan BMKG menunjukkan hasil yang lebih baik jika menggunakan data bulanan, dimana nilai korelasi yang terbesar dari ketiga stasiun adalah,7281 di Stasiun Meteorologi H. Asan Hananjoedin dan yang terkecil adalah 0,5829 di Stasiun Meteorologi Depati Amir.
Simulasi Waduk Sukaraja III, Kecamatan Margatiga, Kabupaten Lampung Timur Febrian Febrian; Gatot Eko Susilo; Endro P Wahono
Jurnal Rekayasa Sipil dan Desain Vol 4, No 3 (2016): Edisi September 2016
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

Sukaraja III’s reservoir is one of reservoir that is usefull to irrigate rice fields in Rawa Sragi II.  To optimize inflow and storage of Sukaraja III’s reservoir, simulation is needed to obtain how many area can be irrigated by optimize the objection function of reservoir.This study was conducted at Sukaraja village, and Negeri Jemanten, Margatiga District, East Lampung Regency. In this study, there’re three analysis, analysis of inflow, analysis of outflow and analysis about water balance. Analysis of inflow use Argoguruh’s weir discharge data 2005-2012. Analysis of inflow include Argoguruh’s weir runoff discharge and discharge of watershed Sukaraja III’s dam. Analysis of inflow include evaporation, maintenance flow, and water needs of the irrigation. Analysis about water balance is used to know how much the volume of reservoir which affected by inflow and outflow. Next, do the simulation to get the maximum area of field with meet two requirements. Reservoir water level should always be above 18 meters and must meet 80% reliability.From the analysis, the result for the largest total inflow in 2005 and the smallest total inflow occurred in 2006. Outflow for each year is different because it is influenced by planting different beginning period, the beginning of January and the beginning of December, and evaporation which caused by total area of reservoir inundation. Fields which can be irrigated with initial period of planting in early January is 4739 ha, and fields which can be irrigated with initial period of planting in early December is 5600 ha. This simulation meets 100% reliability and reservoir water level is always above 18 meters. Key word: simulation, inflow, outflow
Analisis Kedalaman Gerusan Lokal (Local Scouring) di Hilir Bangunan pelimpah (Stepped Modified Spillway) dengan Model Fisik 2D wahyu hadi kuncoro; Endro Prasetyo Wahono; Ahmad Zakaria; Dyah Indriana Kusumastuti
Jurnal Rekayasa Sipil dan Desain Vol 9, No 4 (2021): Edisi Desember 2021
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

Spillway is a hydraulic structure whose existence is very important because it is built to release excess water or flood discharge that cannot be accommodated in the dam. The hydraulics analysis of this study used a spillway design (Stepped modified Spillway) with a 2-D physical model and the sediment used was sand with a uniform diameter of 1.8 mm or passed sieve no. 16. This research was carried out 5 times for every 25 minutes of upstream water level observations.In the Stepped spillway spillway the maximum scour (dsmax) occurs at an upstream height (H0) of 3 cm of 0.125 m with an Lds of 0.09 m from the downstream of the spillway. Meanwhile, for the Stepped Modified Spillway spillway, the maximum scour (dsmax) occurs at an upstream height ( H0) 3 cm is 0.076 m with Lds of 0.221 m. This shows that the greater the flow rate, the greater the depth of scour that occurs. So it can be concluded that the Lacey method is the closest to the laboratory results. This is because a balance has been achieved. The deeper the local scour that occurs, the more volume of sediment carried downstream of the weir.Keywords: Stepped and stepped modified spillway, local scour, sediment.
Perencanaan Sistem Pemanenan Air Hujan Skala Rumah Tangga Di Korea Selatan Park Eun Ha; Gatot Eko Susilo; Endro Prasetyo Wahono
Jurnal Rekayasa Sipil dan Desain Vol 6, No 1 (2018): Edisi Maret 2018
Publisher : Jurnal Rekayasa Sipil dan Desain

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South Korea is classified as a water shortage country. The government has been promoting a "comprehensive water conservation step" since 2000, and one of the government's programs is to expand the areas that implement the installation of Rainwater Harvesting. This study intend to analyze rainwater harvesting planning system and calculate the cost that must be invested in making rainwater harvesting system according to South Korean standard. Where the water needs to be fulfilled from this research is for flushing water and washing. In this research, hydrological analysis with rainfall data is located in Jeju city from 2007 until 2016, population water requirement and budget cost plan analysis for rainwater harvesting system. From the analysis, the value of water flushing water and laundry for one family can be fulfilled with optimization ratio of 67.75%. The simulation of this research using two cubic meters water tank. The budget plan for construct a rainwater harvesting system for single house is 862,316 won. Base on the simulation this study also could estimate the cost of electric power for the pump of 1130 won per month, therefor for the payment of water which is 30,378 won - 31,613 won can be saved about 30,000 won with the value of NPV of 17,190 won on month 35. Keywords : Jeju City, Rainfall, Water Requirement, Cost, NPV
Analisis Pengaruh Kemiringan dan Bentuk Dasar Fishway Terhadap Rasio Perpindahan Sidat (Anguilla bicolor, sp) Maulana Yusuf; Endro Prasetyo Wahono; Dyah Indriana Kusumastuti; Subuh Tugiono
Jurnal Rekayasa Sipil dan Desain Vol 9, No 2 (2021): Edisi Juni 2021
Publisher : Jurnal Rekayasa Sipil dan Desain

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The construction of a transverse structure on a river such as a dam and weir needs to pay attention to environmental factors and the surrounding ecosystem, especially for the ecosystem in the river. Therefore, it is necessary to build a fishway or fish in the transverse river structure so that the river ecosystem which has migration characteristics from upstream to downstream or vice versa is not disturbed because the migration route is blocked. This is the background of the author in taking the title of the thesis Analysis of the Effect of Slope and Basic Shape of Fishway on the Eel Movement Ratio (Anguilla bicolor, sp). The results of this study indicate that eels are nocturnal or active at night. Eel activity most often occurs at a fishway angle of 30 ° by testing using a 0.5 inch pvc pipe foothold type, while the lowest activity occurs at a 35 ° fishway tilt angle by testing using a 1 inch pvc pipe foothold type. The most effective slope based on the test results is at a slope angle of 30 ° but for a slope of 50 ° it can still be said to be effective because the activity ratio shows almost double the activity. Keywords: Fishway, Footing Type, Eel Activity
Co-Authors Adenan Yusuf Ahmad Herison Ahmad Zakaria Ahmad Zakaria ahmad zakaria Ayu Kurniasih Diah Indriana Kusumastuti Dwi Joko Winarno Dyah Indriana Kusumastuti Dyah Indriana Kusumastuti Eddy Purwanto Eko Adi Saputra Fahri, Muhammad Yusrizal Faishal Muhammad Hanun Febrian Febrian Gatot Eko Susilo Geleng Perangin Angin Ikhfan Kurniyawan Ivana Aprili Andika Kustiani, Ika Lidya Susanti Mariyanto Mariyanto Maulana Yusuf Muhamad Angga Wicaksono Mutia Sasra Olga Pandani Nency Dwi Kusanti Opik Taufik Purwadi Park Eun Ha Rian Alfian Riki Chandra Wijaya Riki Chandra Wijaya Rizqi Kurniawan Robby Firza Aditya Subuh Tugiono Suharno Tiara Maelta Amanda wahyu hadi kuncoro Widya Aristiani Yuda Romdania