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All Journal Teras Jurnal Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil Industrial Research Workshop and National Seminar International Journal of Accounting & Finance in Asia Pasific Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Ery Radya Juarti, Ery Radya
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Transportation Other

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Economic Feasibility Analysis of Local Road Maintenance in West Bandung Regency: A Case Study of Cangkorah Street STA 0+000 – 1+300 Juarti, Ery Radya; Sihombing, Atmy Verani Rouly; Pratiwi, Yola Widi; Fadillah, Sekar
International Journal of Accounting & Finance in Asia Pasific (IJAFAP) Vol 6, No 1 (2023): FEBRUARY EDITION OF INTERNATIONAL JOURNAL OF ACCOUNTING FINANCE IN ASIA PASIFIC
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/ijafap.v6i1.1755

Abstract

This study aims to determine the economic feasibility of local road maintenance scenario in West Bandung Regency with case study of the Cangkorah Street. After knowing the International Roughness Index (IRI) value based on the IKP value from the results of a direct survey using IKP guidelines, the economic feasibility analysis is carried out based on a road maintenance scenario, while the maintenance scenario being tested is a do-something scenario, by doing road maintenance in the form of overlay once every 5 years in 10 year time compared by a do-nothing scenario that is not doing any maintenance for the next 10 years. The research instruments used were prediction of the performance of the Cangkorah Street Pavement for the next 10 years, determine road maintenance scenarios, maintenance budget plans, calculate Vehicle Operational Costs (VOC) for each scenario, and time value. The results of this study are: (1) The budget plan for the maintenance of the Cangkorah Street in the do-something scenario with overlays 3 times in 10 years is Rp. 4,168,019,982, (2) The actual VOC for the do-nothing scenario was Rp. 57,345,718,978 and the actual VOC for the do-something scenario was Rp. 3,132,189,189 with VOC savings was Rp. 54,213,529,789, (3) The time value of the scenario for the next 10 years obtained savings of Rp. 399,241,414, (4) The feasibility of do-something scenario from an economic point of view shows that the scenario is feasible with a NPV of Rp. 36,674,480,627>0 and a BCR of 11,39 >1.
Economic Feasibility Analysis of Local Road Maintenance in West Bandung Regency: A Case Study of Cangkorah Street STA 0+000 – 1+300 Juarti, Ery Radya; Sihombing, Atmy Verani Rouly; Pratiwi, Yola Widi; Fadillah, Sekar
International Journal of Accounting and Finance in Asia Pasific (IJAFAP) Vol 6, No 1 (2023): February 2023
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/ijafap.v6i1.1755

Abstract

This study aims to determine the economic feasibility of the local road maintenance scenario in West Bandung Regency with a case study of Cangkorah Street. As a strategic road to pass through the route to the city of Bandung and have a heavy traffic with a lot of heavy vehicles pass the road, roads must be maintained in order to create a safe and comfortable road for passengers. There are several ways to maintain the road, one of them is direct survey using IKP guidelines. The result from IKP value by using IKP guidelines will produce in an International Roughness Index (IRI) values the economic feasibility analysis is carried out based on a road maintenance scenario, while the maintenance scenario being tested is a do- something scenario, by doing road maintenance in the form of overlay once every 5 years in 10 year time compared by a do-nothing scenario that is not doing any maintenance for the next 10 years. The research instruments used were prediction of the performance of the Cangkorah Street Pavement for the next 10 years, determine road maintenance scenarios, maintenance budget plans, calculate Vehicle Operational Costs (VOC) for each scenario, and time value. The conclusion of the study is comparing to the scenarios, do-nothing and do-something, the feasibility of do- something scenario from an economic point of view shows that the scenario is feasible with NPV is Rp. 36,674,480,6270 and a BCR of 11.391.
Bacteria Pseudomonas taiwanensis as a decomposing agent of peat fiber Gulo, Elrich Gratiawan WD; Amalia , Dewi; Mase, Lindung Zalbuin; Yulianto, Faisal Estu; Kusuma, Yusmiati; Juarti, Ery Radya; Suyono, Agus
Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Vol. 8 No. 02 (2023): Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Publisher : Biology Education Department, Universitas Insan Budi Utomo, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/ebio.v8i02.1046

Abstract

Efforts are needed to accelerate the decomposition of peat fiber to reduce the fiber content through bioaugmentation using Pseudomonas taiwanensis bacteria so that it can reduce the high-water content of peat fiber. The research aimed to determine the effect of adding Pseudomonas taiwanensis bacteria on the decomposition of peat fiber. This research is a laboratory experimental research. The research sampling location was in Bereng Bengkel Village, Palangkaraya. The parameters observed included fiber content, fiber size distribution, and peat fiber decomposition speed following the Peat Testing Manual. The research instrument was an observation sheet for fiber content, size distribution, and peat fiber decomposition speed. Research data was analyzed using descriptive statistical analysis. The results showed that adding 15% Pseudomonas taiwanensis bacteria with a curing period of 28 days in fibrous peat resulted in the highest reduction in fiber content, from the initial condition of 61.14% to 12.33%. This variation also shows a decrease in coarse and medium fiber content and a significant increase in fine fiber content. The decomposition rate for this variation shows good consistency. The conclusion was that adding 15% Pseudomonas taiwanensis bacteria with a curing period of 28 days showed optimal results in accelerating the decomposition of peat fiber through the bioaugmentation method.
Evaluasi Perkuatan Eksisting Bronjong Pada Kasus Kelongsoran Jalan Cisasawi, Kecamatan Parongpong, Kabupaten Bandung Barat Amalia, Dewi; Mujiman, Mujiman; Juarti, Ery Radya; Pudin, Apip; Ruchiyat, Iman
Teras Jurnal : Jurnal Teknik Sipil Vol. 12 No. 2 (2022): Volume 12 Nomor 2, September 2022
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v12i2.791

Abstract

Abstrak Jalan Cisasawi mengalami kelongsoran pada tahun 2020. Usaha penanganan kelongsoran telah dilakukan oleh warga, menggunakan Bronjong. Hanya saja, perencanaan perkuatan tersebut tidak memperhitungkan persyaratan yang berlaku. Agar tidak terjadi kejadian serupa, perlu dilakukan evaluasi terhadap perkuatan tersebut. Evaluasi dimulai dengan pengumpulkan data dengan cara pengukuran geometri lereng dan pengujian tanah. Analisis stabilitas dilakukan menggunakan software Geostudio. Evaluasi dilakukan di akhir untuk mengetahui apakah konstruksi perkuatan lereng eksisting tersebut cukup aman atau tidak. Dari hasil analisis didapatkan bahwa nilai SF dari lereng eksisting (sebelum adanya bronjong) sebesar 0,504. Kondisi ini sesuai dengan lapangan yaitu lereng mengalami kelongsoran. Hasil analisis stabilitas lereng setelah diperkuat dengan Bronjong adalah SF sebesar 1,014. Nilai SF ini tidak memenuhi yang disyaratkan SNI 8460-2017 faktor keamanan dalam kondisi gempa SF lebih besar dari 1,1 sehingga diperlukan alternatif perkuatan tambahan lereng. Alternatif perkuatan tambahan lereng dilakukan memperbesar dimensi bronjong. Dari hasil analisis perkuatan tambahan didapatkan SF sebesar 1,277. Kata kunci: Perkuatan lereng, longsor, bronjong, angka keamanan  Abstract Cisasawi Road experienced a landslide in 2020. Landslide handling efforts have been carried out by residents, in the form of strengthening gabions. However, the retrofitting plan does not take into account requirements. In order to avoid similar incidents, it is necessary to evaluate the reinforcement. This evaluation begins with collecting data by measuring slope geometry and soil testing. Stability analysis was performed using GeoStudio software. Evaluation is carried out at the end of the analysis to determine whether the existing slope reinforcement construction is safe enough or not. From the results of the analysis, it was found that the SF value of the existing slope (before the gabions) was 0.504. This condition is in accordance with the field, namely the slope is sliding. The result of slope stability analysis after reinforced with Gabions is SF  1.014. This SF value does not meet the required SNI 8460-2017 safety factor in earthquake conditions SF > 1.1 so that additional slope reinforcement alternatives are needed. An alternative to additional slope reinforcement is to increase the gabion dimensions. From the results of the additional reinforcement analysis, it was found that SF 1,277. Keywords: Slope reinforcement, landslide, gabion, safety factor
Analisis Karakteristik Tanah Gambut Berserat dan Dampaknya Terhadap Infrastruktur Amalia, Dewi; WD Gulo, Elrich Gratiawan; Yulianto, Faisal Estu; Kusuma, Yusmiati; Juarti, Ery Radya; Pudin, Apip
Teras Jurnal : Jurnal Teknik Sipil Vol. 14 No. 1 (2024): Volume 14 Nomor 1, Maret 2024
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v14i1.1008

Abstract

Abstrak Indonesia merupakan salah satu negara dengan sebaran lahan gambut yang luas. Gambut dikenal sebagai tanah yang bermasalah dalam pekerjaan konstruksi karena memiliki daya dukung yang rendah sehingga tidak dapat menopang pondasi infrastruktur. Tujuan penelitian ini adalah untuk menganalisis karakteristik tanah gambut di Kalimantan, sehingga penanganan yang tepat dapat ditentukan untuk mengatasi permasalahannya. Studi kasus pada penelitian ini adalah tanah gambut di Bereng Bengkel, Palangkaraya. Karakteristik tanah gambut diidentifikasi melalui serangkaian pengujian tanah berdasarkan Peat Testing Manual 1979. Selain itu, dilakukan juga pengujian Scanning Electron Microscopy untuk melihat morfologi tanah gambut, serta pengujian Fourier Transform Infra-Red untuk mengidentifikasi jenis senyawa yang terdapat di dalamnya. Hasil pengujian tanah di laboratorium menunjukkan bahwa tanah gambut memiliki sifat yang buruk secara geoteknik. Dari hasil pengujian SEM, diketahui adanya makropori dan mikropori pada tanah gambut yang sebagian besar ditempati oleh air. Kemudian, berdasarkan hasil pengujian FTIR, diketahui bahwa tanah gambut memiliki senyawa yang bersifat hidrofilik. Kata kunci: tanah gambut, serat gambut, infrastruktur Abstract Indonesia is one of the countries with a wide distribution of peatlands. Peat is known as a problematic soil in construction work because it has a low bearing capacity that cannot support infrastructure foundations. The objective of this research is to analyze the characteristics of peat soils in Kalimantan, so that appropriate treatments can be determined to overcome the problem. A case study of this research is the peat soil in Bereng Bengkel, Palangkaraya. The characteristics of the peat soil were identified through a series of soil tests based on the Peat Testing Manual 1979. In addition, Scanning Electron Microscopy testing was carried out to look at the morphology of the peat soil, as well as Fourier Transform Infra-Red testing to identify the types of compounds contained therein. The results of soil testing in the laboratory showed that the peat soil had poor geotechnical properties. SEM testing revealed macropores and micropores in the peat soil, most of which were occupied by water. FTIR testing showed that peat soil has hydrophilic compounds. Keywords: peat soil, peat fiber, infrastructure
Perencanaan Jadwal dan Anggaran Biaya dengan Penerapan BIM pada Proyek Jembatan CL-06 Ibu Kota Nusantara Muhammad, Fadhil; Torino, Fikri Haafizh; Juarti, Ery Radya; Indah, Risma Nur
Prosiding Industrial Research Workshop and National Seminar Vol. 16 No. 1 (2025): Vol. 16 No. 1 (2025): Prosiding 16th Industrial Research Workshop and National
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/irwns.v16i1.6702

Abstract

Industri konstruksi menghadapi tantangan dalam efisiensi dan akurasi, terutama saat menggunakan metode konvensional. Building Information Modeling (BIM) hadir sebagai solusi inovatif yang menggabungkan model 3D dengan penjadwalan dan estimasi biaya untuk meningkatkan manajemen proyek. Tugas akhir ini membahas penerapan BIM pada Proyek Jembatan CL06 di Ibu Kota Nusantara (IKN) sepanjang 60 meter dan lebar 23 meter. Pemodelan dilakukan menggunakan Autodesk Revit berdasarkan As Built Drawing, mencakup seluruh elemen struktural dan arsitektural. Hasil model digunakan untuk kuantifikasi material (Quantity Take Off) yang kemudian disusun menjadi Rencana Anggaran Biaya (RAB) dengan acuan harga Dinas Pekerjaan Umum Kalimantan Timur tahun 2023–2024 melalui Microsoft Excel. Penjadwalan proyek dilakukan dengan Microsoft Project dan diintegrasikan ke Autodesk Navisworks untuk menghasilkan simulasi visual konstruksi. Hasilnya menunjukkan durasi proyek 355 hari kalender dan 21 item pekerjaan sebagai kegiatan kritis. BIM terbukti efektif dalam mendeteksi konflik desain, mengoptimalkan sumber daya, mengurangi risiko keterlambatan dan pembengkakan biaya, serta mempercepat estimasi biaya dan memperjelas visualisasi desain.
Optimalisasi Penerapan Sistem Rainwater Harvesting (RWH) di Lingkungan Politeknik Negeri Bandung dalam Rangka Konservasi Sumber Daya Air Karnisah, Iin; Enung, Enung; Widyantoro, Frenki Tres; Fadli, Dicky Muhamad; Sari, Risna Rismiana; Kusuma, Yusmiati; Juarti, Ery Radya; Noorlaelasari, Yullianty; Muchtar, Muchtar
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 10 No. 1 (2026)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v10i1.21849

Abstract

This study aims to optimize the Rainwater Harvesting (RWH) system at Bandung State Polytechnic as a strategy for water resource conservation and strengthening the Green Campus concept. The research was conducted by identifying the existing condition of the RWH system at 25 campus building points, analyzing hydrological potential using BMKG rainfall data from 2014–2024, as well as evaluating efficiency and developing technical optimization recommendations. The existing RWH system is dominated by tanks with a capacity of 1,050–2,000 liters, which do not yet function optimally due to limited capacity, channel blockages, and variations in pipe diameter. The analysis shows an average annual rainfall of 2,831 mm with a potential rainwater catchment of up to 70 m³ per month, sufficient to meet 25–30% of the campus's non-potable water demand. System optimization is proposed by increasing tank capacity to 5,000–10,000 liters, using 3–4 inch pipes, and implementing multi-layer filtration and automated control, thus increasing system efficiency to 40–60%. The integrated system prototype in classrooms and laboratories has been proven to reduce PDAM water consumption by 40% and surface runoff by up to 35%. The research outcomes support the achievement of UI GreenMetric water conservation indicators and contribute to the realization of Sustainable Development Goals (SDGs) points 6 and 13. This study provides recommendations for an adaptive RWH system replication model for other educational institutions in Indonesia to manage water resources sustainably and efficiently.​
Co-Authors AGUS SUYONO Amalia , Dewi Dewi Amalia Enung Enung, Enung Fadillah, Sekar Fadli, Dicky Muhamad Faisal Estu Yulianto, Faisal Estu Gulo, Elrich Gratiawan WD Indah, Risma Nur Karnisah, Iin Kusuma, Yusmiati Lindung Zalbuin Mase, Lindung Zalbuin Muchtar muchtar Muhammad, Fadhil Mujiman Mujiman, Mujiman Pratiwi, Yola Widi PUDIN, APIP Risna Rismiana Sari, Risna Rismiana Ruchiyat, Iman Sihombing, Atmy Verani Rouly Torino, Fikri Haafizh WD Gulo, Elrich Gratiawan Widyantoro, Frenki Tres Yullianty Noorlaelasari, Yullianty