J-Sil (Jurnal Teknik Sipil dan Lingkungan)
J-Sil (Jurnal Teknik Sipil dan Lingkungan or Journal of Civil and Environmental Engineering) was established in 2016 and managed by the Department of Civil and Environmental Engineering, IPB University (Bogor Agricultural University). The journal aims at disseminating original and quality academic papers that deemed potential to contribute to the advancement of science and technology in the field of civil and environmental engineering to support sustainable developments. The journal covers any scopes within civil and environmental engineering, such as structure, irrigation, drainage, water quality, water construction, hydrology, water management, groundwater conservation, soil mechanics, foundation, soil improvement, slope stability, liquefaction, and soil modeling, road engineering, transportation management, construction management, environmental atmosphere and climate change environment (control of greenhouse gases, air quality models, climate change locally and globally), renewable energy and waste management (recovery of energy from waste, incineration, landfills, and green energy, biotechnology environment (nano-bio sensors, bioenergy, environmental eco-engineering), technology, physical, biological, and chemical (membrane technology, the process of advanced oxidation technology Physico-chemical, biological treatment of water), engineering environmental control (desalination, ICA (instruments, control , and automation), and water reuse technologies) and Applied Geomatics. The journal receives original papers from various contributors, such as academicians, scientists, researchers, practitioners, and students from all over the world.
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<![CDATA[Laju Pemampatan Tanah Gambut melalui Pengujian Konsolidasi Primer ]]>
<![CDATA[Efan Tifani]]>
<![CDATA[ Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 3: Desember 2019 ]]>
Publisher : <![CDATA[Departemen Teknik Sipil dan Lingkungan, IPB University ]]>
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DOI: 10.29244/jsil.4.3.187-194
<![CDATA[On the very soft soil conditions that are easily compressed and thick like peat soil, initial loading is required by first loading the soil, the aim is to increase the carrying soil bearing capacity and reduce the settlement in primary consolidation before permanent construction of civil buildings is carried out, this method is known as preloading. Based on this, it is necessary to carry out a primary consolidation test using an oedometer to determine the rate of compression of the peat soil and how much reduction (consolidation) occurs using the square root of time method. Testing of the peat soil compression rate is carried out as much as 6 times of loading and 2 times of unloading in based on gdmaks and OMC conditions. From the test results, it is found that the compression that occurs in peat soil is very large at the beginning of loading, then the compression is smaller in stage during 6 times of loading, this shows that peat soil has a very high compression and compressibility rate at the beginning of loading at time t90 with the resulting curve linear.Keywords: Peat Soil, Compression, Loading Unloading, Consolidation]]>
<![CDATA[Evaluasi Saluran Drainase di Perumahan Alam Sinar Sari Kabupaten Bogor Jawa Barat ]]>
<![CDATA[Fahri Ekananda]]>;
<![CDATA[Nora Herdiana Pandjaitan]]>;
<![CDATA[Maulana Ibrahim Rau]]>
<![CDATA[ Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 3: Desember 2019 ]]>
Publisher : <![CDATA[Departemen Teknik Sipil dan Lingkungan, IPB University ]]>
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DOI: 10.29244/jsil.4.3.219-232
<![CDATA[Drainage system is one of the important infrastructure components to drain runoff from rainfall. The purpose of this research were to identify the condition of existing drainage system in Alam Sinar Sari Residence, to analyze the discharge using EPA SWMM 5.1 application, and to analyze the suitability of existing drainage system with its runoff. The research was conducted since March 2018 on Alam Sinar Sari Residence which is located in Cibeureum Petir, with the total area of 15 ha. Based on analysis and statistic test, the acceptable distribution model is Log Pearson III model with 5 year return period. The rainfall designed was 175.86 mm. Based on simulation done using SWMM 5.1, the actual debit of conduit C76 were bigger than its planned debit and should be re-evaluated. Conduit C76 had dimension of depth of 0.31 m and width of 0.34 m. Based on simulation the discharge in C76 of 0.088 m3/s was bigger than the planned debit which was only 0.069 m3/s. After evaluation, conduit C76 should undergone changes of width dimension from 0.34 m to 0.50 m to be able to hold runoff.Keywords : designed rainfall, drainage, EPA SWMM 5.1, runoff]]>
<![CDATA[Pengembangan Model Jaringan Syaraf Tiruan Untuk Menduga Fluks Gas N2O dari Lahan Sawah ]]>
<![CDATA[Muhammad Didik Nugraha]]>;
<![CDATA[Chusnul Arif]]>
<![CDATA[ Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 3: Desember 2019 ]]>
Publisher : <![CDATA[Departemen Teknik Sipil dan Lingkungan, IPB University ]]>
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DOI: 10.29244/jsil.4.3.233-242
<![CDATA[Artificial neural networks (ANN) model was used to estimate N2O gas flux emitted from rice paddies with several water regime treatments. The purpose of this study were to identify the relationship of micro-environment with different water regimes towards N2O gas flux, to predict the amount of N2O gas flux, and to validate neural network models. Field experiment was conducted in the field laboratory of Civil and Environmental Engineering-IPB from February to August 2016. Land of paddy was treated with three water regime of continuous flooding water regime, wet water regime, dry water regime. ANN model with back propagation algorithm consisted of input layer with six nodes of micro- environment parameter and N2O gas was used as the model output. The total N2O flux for continuous flooding water regime, wet and dry regime were -25.95 mg/m2/season, 17.32 mg/m2/season, and 21.16 mg/m2/season. ANN each water regime was obtained the coefficient of determination (R2) of was 1, so ANN model was acceptable and could be used to predict N2O flux. Key words: artificial neural networks, micro environment, N2O gas flux, paddy field]]>
<![CDATA[Analisis Perubahan Faktor Keamanan Lereng Akibat Hujan ]]>
<![CDATA[Achmad Hafidz]]>;
<![CDATA[Muhammad Fauzan]]>;
<![CDATA[Heriansyah Putra]]>;
<![CDATA[Annisa Daniswara]]>
<![CDATA[ Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 3: Desember 2019 ]]>
Publisher : <![CDATA[Departemen Teknik Sipil dan Lingkungan, IPB University ]]>
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DOI: 10.29244/jsil.4.3.169-176
<![CDATA[Infiltration causes a decrease in soil shear strength parameters. Decrease in soil shear strength parameters can cause landslides. Landslides often occur in Bogor Regency, one of the landslide locations is Puncak, Bogor. Landslides in Puncak, Bogor on 05 February 2018 at 09.20 WIB must have a safety factor 1.07. Changes in safety factors due to rainfall are observed from 03 February 2018 at 05.00 WIB until 05 February 2018 at 09.20 WIB. This research includes testing soil samples, pore water pressure analysis and slope stability analysis. The software used for this analysis is GeoStudio. The analysis results are the changes in safety factor due to rainfall. The safety factor on 03 February 2018 at 05.00 WIB is 1.602. Safety factor until 05 February 2018 at 03.40 WIB are still above 1.25. So, the slopes are still safe. The decline in safety factor continued until 1.070 due to a decrease in cohesion on 05 February 2018 at 09.20 WIB with cohesion on SW-SM soil and SM soil at 4.01 kPa and 9.18 kPa. So, the duration needed to change a safe slope to landslide is only 5 hours 40 minutes. This can occur because of the intensity of the rain on 05 February 2018 at 07.00 WIB and 08.00 WIB are 34.1 mm/hour and 34.9 mm/hour. Key words: cohesion, landslides, rainfall, safety factor]]>
<![CDATA[Model Prediksi Kebutuhan Air Bersih Berdasarkan Jumlah Penduduk di Kawasan Perkotaan Sentul City ]]>
<![CDATA[Asep Suheri]]>;
<![CDATA[Cecep Kusmana]]>;
<![CDATA[Moh Yanuar J Purwanto]]>;
<![CDATA[Yudi Setiawan]]>
<![CDATA[ Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 3: Desember 2019 ]]>
Publisher : <![CDATA[Departemen Teknik Sipil dan Lingkungan, IPB University ]]>
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DOI: 10.29244/jsil.4.3.207-218
<![CDATA[This research aims to create a model for predicting clean water need in the urban area Sentul City currently and next 30 (thirty years). To create the model, it is required data which are useful for forecasting the inhabitant number year to year. There are some general-used models for forecasting the inhabitant number, including to arithmatic, exponential, and least square method. The inhabitant number forecast in this research used an exponential method, as recommended in the Guidance of River Area Water Resource by Directorate General of Water Resource in 2001. The researcher used the software Stella 9.0.1 for simplifying the modeling process, projecting the inhabitant number, predicting the clean water need, and figuring the graphics. Besides this software, Excel programme was also used. According to data analysis result, the equation models to predict water need (m3/year) in Sentul City are stated as follows; for rural area inhabitants: YDn = 1 927 309 (1 + 0.0303)n; for urban area inhabitants: YKn = 1 808 940 + 217 248*n; and for total inhabitants: YSCn = YDn + YKn.Keywords: inhabitant number, geomeric method, clean water need prediction]]>
<![CDATA[Analisis Perilaku Struktur Gedung Bertingkat Dengan Analisis Dinamik Respon Spektrum Terhadap Beban Gempa ]]>
<![CDATA[Muhammad Farhan Harahap]]>;
<![CDATA[Muhammad Fauzan]]>
<![CDATA[ Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 3: Desember 2019 ]]>
Publisher : <![CDATA[Departemen Teknik Sipil dan Lingkungan, IPB University ]]>
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DOI: 10.29244/jsil.4.3.195-206
<![CDATA[The effect of earthquake load on building structures can be analyzed by equivalent static and dynamic methods analysis (spectrum response and time history). Earthquake load in buildings causes to collapse in buildings. One of the region in Indonesia that have highrisk on the earthquake is Bekasi. This research was conducted at the Galaxy Park Metro Apartment, Bekasi. This study aims to conduct building modeling, analyze the stiffness, vibration period, and the basic shear force of the structure, determine the pattern of sway (mode) and gather mass. The structural performance analysis of the Metro Galaxy Park Apartments based on SNI 1726 2012, SNI 1727 2013, SNI 2847 2013, and PPURG 1987. The results of this research show that the value of the vibration period of Metro Galaxy Park Apartments is 4.281 seconds. The amount of mass participation in the X and Y directions that exceeds 90% in the 21st and 24th modes respectively. The size of the static base shear (Vstatic) obtained is 23357.8 kN. While the dynamic base shear force (Vdynamic) for the earthquake direction X and the direction of the earthquake Y are obtained at 9788,041 kN and 10777.75 kN, respectively. Design scale factor for dynamic base shear force (V dynamic) of the earthquake in X and Y earthquake direction are 2.03 and 1.843, respectively. The magnitude of the dynamic base (Vdynamic) shear force for the X earthquake direction and Y earthquake direction are 19859,93 kN dan 19863,40 kN., respectively. Modeling of Metro Galaxy Park Apartments has been successfully done and the pattern of shaking (mode) of buildings has been obtained.Keywords: dynamic analysis, earthquake, mode shape, response spectrum]]>
<![CDATA[Analisis Kinerja Rencana Bundaran dengan Pendekatan Simulasi Mikro ]]>
<![CDATA[Tri Sudibyo]]>;
<![CDATA[Erizal Erizal]]>;
<![CDATA[Purwo Mahardi]]>;
<![CDATA[Muhammad Fauzan]]>;
<![CDATA[Heriansyah Putra]]>
<![CDATA[ Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 3: Desember 2019 ]]>
Publisher : <![CDATA[Departemen Teknik Sipil dan Lingkungan, IPB University ]]>
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DOI: 10.29244/jsil.4.3.177-186
<![CDATA[Urban road network typically consists of many intersections which commonly lead to traffic problems. In relatively low traffic, a simple priority intersection will be sufficient and lead no traffic problem without necessarily implement traffic lights, roundabout or others. In an urban area where traffic demands are high, intersections need to be treated with an accurate traffic engineering approach. There are many different approaches to reduce the traffic problem in intersection including traffic light, roundabout, or interchange. Cimahpar Raya street and Indobaso intersections are urban areas in Bogor city with the high demand for transportation and often having a congestion problem in peak hour. The Office of Public Works and Spatial Planning (PUPR) of Bogor city plans to develop and change the Indobaso intersection to be a roundabout, while also increasing the lane width of the approaching roads. This study was conducted to assess the performance changes of the Indobaso intersection improvement by developing a traffic model of the intersection. The planned roundabout and lane width improvement significantly reduce the traffic delays by 90,07%, reduce travel time by 51,76%, improve average speed by 83,77%, and reduce the traffic density by 88,54% compared to the current condition of the intersection which lacks required lane road width and maneuver area.Key words: urban road, intersection, traffic model]]>
