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Civil and Environmental Science Journal (CIVENSE)
Published by Universitas Brawijaya
ISSN : -     EISSN : 26206218     DOI : https://doi.org/10.21776/ub.civense
Core Subject : Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science
Civil and Environmental Science Journal (Civense) is an international journal, peer-reviewed research publication covering new concepts, theories, methods, and techniques related to science and engineering. The journal will cover, but is not limited to, the following topics: 1. Structural engineering 2. Construction management 3. Environmental engineering 4. Water resources and hydrologic engineering 5. Geotechnical engineering 6. Information technology 7. Coastal and harbor engineering 8. Surveying and geo-spatial engineering 9. Transportation engineering 10. Tunnel engineering 11. Construction materials
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 6 Documents
 1 
Search results for , issue "Vol 2, No 2 (2019)" : 6 Documents clear
El-nino effect on reservoir volumetric (A case study of the Batujai Dam on the island of Lombok) Yasa, I Wayan; Bisri, M.; Sholichin, M.; Andawayanti, Ussy
Civil and Environmental Science Journal (CIVENSE) Vol 2, No 2 (2019)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2019.00202.1

Abstract

El-Nino has been occurred from 1952 to 2016 with the types of weak, medium, strong and very strong. The event of El-Nino has significant impact on all aspects of economy, social, industry and agriculture. There is a decrease in the quantity of water resources such as in the reservoir where the reservoir inflow becomes very small and the water outflow becomes high. At the event of very strong El-Nino is occurred some of the reservoirs will dry. The aim of the research is to investigate the deficit capacity of the reservoir in the event of El-Nino. The data analyzed in this article were the volume of the half-month reservoir, especially in the event of El-Nino events. The analysis of frequency deficit probability was using Weibull probability and Log Pearson Type III distribution. The results show significant decrease in reservoir water volume over a very long-time period. The reservoir volume never reached maximum water level and persists for almost one year. The deficit of reservoir volumes reached was 16,01x106 m3, 18.64x106 m3, and 21,07x103 m3 for weak, moderate, and very strong El-Nino, respectively.
Determination of Pollution Load Capacity Using QUAL2Kw Program on The Musi River Palembang Lestari, Handayani; Haribowo, Riyanto; Yuliani, Emma
Civil and Environmental Science Journal (CIVENSE) Vol 2, No 2 (2019)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2019.00202.4

Abstract

The Object of this research is a river named Musi, located in Palembang City, South of Sumatera, which is one of the longest and the biggest river in Indonesia. The condition of water quality in this river must be concerned because the high demand is not balanced with a good water quality. So, the aim of this study is to determine the value of the pollution load capacity, which is useful for consideration to government on water quality improvement policy. QUAL2Kw is used as an application to calculate the pollution capacity which entered to each river segment. There are 3 scenarios in this study, simulation 1 is calibrated model, simulation 2 is maximum of pollutant load condition, and simulation 3 is minimum of pollutant load condition. The value of pollutant load capacity is obtained from the difference between simulation 2 and simulation 3. The results show that the pollution load capacity on Musi River (particularly segment Pulokerto – PT. Baja Baru) in 2016 sequentially 12948 kgDO/day, 25205 kgBOD5/day, 3207 kg/ NH3-N day, 642 kg PO4/day
Performance of The Dispin Models with Automatic Parameter Calibration on The Transformation of Rainfall to Runoff Data Sulianto, Sulianto; Bisri, M.; Limantara, lily Montarcih; Sisinggih, Dian
Civil and Environmental Science Journal (CIVENSE) Vol 2, No 2 (2019)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2019.00202.2

Abstract

This article presents a new model of the DISPRIN Model combination with two different level optimization methods. The new model of DISPRIN Model combination and Differential Evolution (DE) algorithm is called DISPRIN25-DE Models and its incorporation with Monte Carlo Simulation method called DISPRIN25-MC Models. The case study is Lesti Watershed (319.14 Km2) in East Java. The model test uses a 10-year daily data set, from January 1, 2007 to December 31, 2016. Data series Year 2007 ~ 2013 as a set of training data for calibration and data Year 2014 ~ 2016 as testing data set for model validation. Running program DISPRIN25-DE Models with input parameter value C_min = 0, C_max = 1, H_min = 0, H_max = 600 mm obtained best fitness 0.044 m3/sec, NSE = 0.762 and PME = -0.059. The DISPRIN25-MC Models analysis generates a minimum RMSE of 0.056 m3/sec, NSE = 0.779, PME = -0.70. From the RMSE and NSE indicators it appears that both models can show an equivalent level of performance, but in terms of the PME indicator and iteration time is apparent The DISPRIN25-MC model has worse performance than the two DISPRIN25-DE models.
Integrated Urban Drainage Management for Flood Inundation Controlling in Sidokare Area at Sidoarjo Regency Cahya, Evi Nur; Guntoro, Dani Eko; Harisuseno, Donny
Civil and Environmental Science Journal (CIVENSE) Vol 2, No 2 (2019)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2019.00202.3

Abstract

Flood and inundation had become a serious problem in Sidoarjo Regency annually. This study aimed to apply integrated urban drainage management for flood inundation controlling at Sidokare Region in Sidoarjo Regency. This integrated drainage management consisted of retarding pond, drainage channel redesign, and pump utilization. The study region was divided into Sidokare Pump station, Sepande, and Diponegoro Street catchment area. Rainfall intensity during historical floods was analysed using Mononobe formula and Log Pearson Type III method was used to analyze design rainfall. From the result of the analysis, it wasfoundthat thehistoricalfloodsinstudyregioncausedbyrainfall withreturnperiodof1.01 years, with rainfall intensity of 17.55 mm/hour. It was also found that by implementing this integratedurbandrainagemanagementatSidokareRegion,floodcouldbereducedupto100%. ForSidokarePumpStationcatchmentarea,theinundationmanagementwasconductedbyusing combination of storage pool, existing drainage channel, and the existing flood pump. For Sepandecatchmentarea,itwasmanagedtousethecombinationofstoragepoolandtheexisting drainage channel. Meanwhile, Diponegoro Street catchment area was solved by utilizing new flood pump combining with new tertiary channel and existing drainagechannel.
Inspections of Hydro-Geotechnical on Ngancar Dam asmaranto, runi; Suryono, Antonius; Hidayat, Muhammad Nurjati
Civil and Environmental Science Journal (CIVENSE) Vol 2, No 2 (2019)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2019.00202.5

Abstract

Besides having great benefits, dam also holds enormous potential dangers. The collapsed dam will cause devastating flood along the river resulting in loss of lives, properties, damage to public facilities and environment, especially in the downstream area. For safety and prevent the occurrence of the disaster, the operational of dam should always be monitored, inspected and maintained properly continually. With a good monitoring, dam managers will discover as early as possible the problems emerging in the dam, and then perform the appropriate steps to prevent the development of the problems. This paper will perform hydro-geotechnical analysis as a review current condition of slope stability based on the result of soil investigation on present dam condition and review instrumentations installed in Ngancar Dam
Calibration of surface runoff parameters with the hydrologic tank model using recursive digital filter and master recession curve Suryoputro, Nugroho; Suhardjono, Suhardjono; Soetopo, Widandi; Suhartanto, Ery
Civil and Environmental Science Journal (CIVENSE) Vol 2, No 2 (2019)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2019.00202.6

Abstract

There are two basic methods to calibrate the hydrological model: (1) the trial and error procedure; (2) the automatic calibration. The problem in the calibration method is the determination of the initial value of the parameters. This poses a problem for beginner model users. This paper presents the calibration results of surface runoff parameters in the hydrological tank model using recursive digital filter method and the master recession curve. The results indicate that the Recursive Digital Filter as a surface runoff separation method can be used for the initial approach to calibrate the tank model parameters

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