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A Study of Pile Displacement in Soft Soil: The Case of Semarang - Demak Toll Road Construction Package 1B
Get PDF In the construction package of Semarang-Demak Toll Road 1B, an elevated bridge is planned to be built using a pile foundation of 56 pieces with a diameter of 1.0 m installed at a depth of 68m. The soil conditions at the site are very soft to medium clay and silt. During the excavation of the footing work, there was a displacement of 11 piles. This study aims to analyze the pile displacement behavior at each work sequence due to the influence of excess pore pressure and excavator distance near the pile. The pile displacement behavior was modeled using a Finite Element Method (FEM) based program, Plaxis 2D. Piles are modeled using an elastic constitution model to obtain deformation results that match the actual conditions in the field. While the soil is modeled using the Mohr Coulomb soil constitutive model on the embankment soil and Soft Soil on the original soil. The analysis was conducted to determine the lateral displacement of poles in field conditions at each sequence of work on unconsolidated soil with/without an excavator load of 15 kN. The results showed that by conditioning the soil at 90% consolidation degree (U90%) can reduce the lateral displacement value of the pile by 95.96% at the 4 m deep excavation stage compared to the unconsolidated soil. By placing the excavator 6.5 m away from the piles, it can reduce the lateral displacement that occurs by 20.96% compared to the existing position of 3.5 m from the piles
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No full textJournal of Infrastructure & Facility Asset ManagementVolume 7, Special Issue 2, January 2025 (e) ISSN 2656-8896 (P) ISSN 2656-890X Volume 7, Special Issue 1, January 2025Parametric Study of Embankment Stability And Geotextile Reinforcement On Soft Soil Mirza Syah Alam, Herman Wahyudi, Yudhi Lastiasih, Yusrizal Kurniawan Analysis Of Slope Stability Based On The Effect Of RainFall On The Lombok International Airport (Bil) – Mandalika Road STA 10+375 to STA 10+550 Made Sudiadnya, Mohamad Khoiri, Dwa Desa Warnana, Herlambang Zulfikar Analysis of The Effect of Seismic Load on The Design Safety Factor of Foam Mortar with Bored Pile Landslide Location of Batas Pidie/Aceh Besar – Bts. Kota Sigli STA 0+560 Ichvan Danny Kurniawan, Trihanyndio Rendy Satrya, Ria Asih Aryani Soemitro, Fikri Afzal A Study of Pile Displacement in Soft Soil: The Case of Semarang - Demak Toll Road Construction Package 1B Novera Sagita, Herman Wahyudi, Yudhi Lastiasih &Yusrizal Kurniawan Design Of Toll Road Embankment With Secondary Compression Mitigation After PVD Installation And Solutions For The Probolinggo – Banyuwangi Toll Road Construction Project PackKAGE 2 STA 16+300 – STA 16+700 Septya Kukuh Aryandi, Indrasurya B. Mochtar, Noor Endah, Abdjad Agung ArtantoVolume 7, Issue 1, January 2025Parametric Study of Embankment Stability And Geotextile Reinforcement On Soft Soil Mirza Syah Alam, Herman Wahyudi, Yudhi Lastiasih, Yusrizal Kurniawan Analysis Of Slope Stability Based On The Effect Of RainFall On The Lombok International Airport (Bil) – Mandalika Road STA 10+375 to STA 10+550 Made Sudiadnya, Mohamad Khoiri, Dwa Desa Warnana, Herlambang Zulfikar Analysis of The Effect of Seismic Load on The Design Safety Factor of Foam Mortar with Bored Pile Landslide Location of Batas Pidie/Aceh Besar – Bts. Kota Sigli STA 0+560 Ichvan Danny Kurniawan, Trihanyndio Rendy Satrya, Ria Asih Aryani Soemitro, Fikri Afzal A Study of Pile Displacement in Soft Soil: The Case of Semarang - Demak Toll Road Construction Package 1B Novera Sagita, Herman Wahyudi, Yudhi Lastiasih &Yusrizal Kurniawan Design Of Toll Road Embankment With Secondary Compression Mitigation After PVD Installation And Solutions For The Probolinggo – Banyuwangi Toll Road Construction Project PackKAGE 2 STA 16+300 – STA 16+700 Septya Kukuh Aryandi, Indrasurya B. Mochtar, Noor Endah, Abdjad Agung Artanto
Editorial
Get PDFThis JIFAM volume 7 (Issue 1) January 2025 publishes papers related to infrastructure assets maintenance as well as soil improvement methods to develop the sustainable asset management for infrastructures.As regulated in Indonesian Scientific Journal Accreditation, a Scientific Journal can publish the Regular, Supplement and Special Edition. The JIFAM Editorial Team express their gratitude to the authors who already submitted their papers for the seventh volume (Issue 1)
Slope Design for Cost Optimization of Slope Cutting and Reinforcement (Case Study: Trans-Sumatra Toll Road Rengat Pekanbaru Section Lingkar Pekanbaru Junction Pekanbaru Sta. 205+150 - 205+725)
Get PDFThe trans-Sumatra toll road project currently under construction is the Rengat - Pekanbaru toll road construction project, the Pekanbaru ring road section located at km 205 + 150 to km 205 + 725 (575m long). In this section, quite deep excavation work is required as well as quite wide land acquisition which causes expensive land acquisition costs. In this study, slope variations were carried out with steeper angles in order to obtain a smaller road ROW; only additional reinforcement needs to be planned so that the slope is more stable and does not cause landslides. The stability of the varying slope slopes was analyzed using an auxiliary program to obtain the safety factor for each selected slope. In conducting the analysis, the elevation of the groundwater level was varied, namely at the bottom of the excavation (conditions during the dry season), as in secondary data, and at the top of the excavation (conditions during maximum rainfall). Slope stability analysis was also carried out using the ' theory of cracked soil' approach. Slope reinforcement using ground anchors will be planned if SF <1.0; for slopes that have SF ≥ 1.0, rainwater management will be carried out without reinforcement. The excavation slope at Sta 205+400 with a slope of 1:2 and 1:3 and the groundwater level at the top of the excavation is SF = 1.73; if the analysis is carried out using the cracked soil approach, the safety factor value drops to SF = 0.68. In addition, in the alternative slope gradients, namely alternative 1 with a slope angle of 1:1 and alternative 2 with a slope angle of 2:1, the slope safety factor changes quite drastically to 0.39 in alternative 1 and 0.2 in alternative 2. The cost calculation for alternative 2 with a slope gradient of 2:1 saves excavation work of 183,136.31 m3, 34,375 m2 of land acquisition and reinforcement costs of 3,422 Ground anchor points in cracked soil conditions and groundwater elevation with existing conditions of secondary data. Cost optimization of Rp. 18,423,905,547,
THE IMPACT OF SECONDARY SKIN ON NATURAL LIGHTING IN THE OFFICE OF BPS SALATIGA: A SIMULATION STUDY USING DIALUX EVO 13.0 AND GREEN ARCHITECTURE PRINCIPLES
Get PDFThe development of technology and the demand for sustainability encourage the importance of applying green architecture principles in office buildings. The implementation of green architecture principles in government office buildings often encounters challenges such as limited stakeholder awareness, budget constraints, and the absence of passive design strategies that optimize natural resources. These conditions highlight the urgency of exploring design interventions that balance energy efficiency, user comfort, and sustainability. This study aims to evaluate the effectiveness of using secondary skin in improving daylighting in the Central Statistics Agency (BPS) of Salatiga City. The approach used is a green architecture approach with a focus on energy efficiency and the visual comfort of space users. The research method includes analyzing the existing conditions and redesigning the facade using secondary skin elements based on daylighting simulation through DIALux Evo, Revit, and EDGE App software. Simulations were conducted on several main workspaces to compare the value of light intensity between the existing conditions and the redesign results. A comparative simulation between DIALux Evo 13.0 and Autodesk Revit revealed consistent daylight distribution patterns, confirming the effectiveness of a 90° vertical secondary skin configuration. The EDGE Application 2.1.5 analysis indicated potential energy savings of 55.32% in redesigned conditions, highlighting the secondary skin's role in reducing artificial lighting dependency and contributing to the overall building's energy efficiency. The results show that the application of secondary skin can improve the even distribution of natural light and reduce dependence on artificial lighting. In addition, the proposed redesign contributes to achieving energy efficiency principles and improving workspace quality. This research is expected to serve as a reference for the application of sustainable passive design in government agency buildings in tropical areas
Optimization of Hybrid Battery-Supercapacitor Storage System in Electric Ship Using Multi-Objective Genetic Algorithm
Get PDFAs the marine industry now is running toward the green and more efficient propulsion system, the optimization has also become a primary part of the research. This research study is focusing on the optimal sizing of Hybrid Energy Storage (HESS) in electric ship using Multi-Objective Genetic Algorithm (MOGA). By integrating the battery and supercapacitor (SC), it helps cover the load demand while enhancing a good performance to the ship. This research study is to optimize sizing of HESS with a suitable Energy management System (EMS) to desired the intention of minimize the total cost of HESS and degradation of the battery. The proposed model addresses the complexity of HESS while optimized the distribution of power for both the battery and SC, handling the load condition
Jacket Structure Design Optimization to Reach Minimum Construction Cost
Get PDFOffshore jacket structures are essential components in platform construction, requiring optimization due to high material, fabrication, and coating costs. The objective of this research is to achieve cost-effective designs without compromising safety. The methodology employs Sequential Quadratic Programming (SQP) with a surrogate-based approach to optimize structural dimensions, while reliability is assessed using Monte Carlo Simulation to account for uncertainties. Optimization conducted in MATLAB resulted in significant improvements in the dimensional reduction of most design variables, including a 20.32% reduction in total construction costs. Material, fabrication, and coating costs decreased by 19.05%, 28.11%, and 6.14%, respectively. The reliability index () of critical members improved to a range of 3.12–3.29, exceeding the safety threshold of 3.09
Kajian Efektifitas Early Release Dalam Mereduksi Banjir Pada Bendungan Bagong
Get PDFBendungan Bagong memiliki fungsi utama sebagai pengendali banjir. Salah satu alternatif dalam mereduksi banjir dengan penerapan operasi early release, yaitu menurunkan elevasi muka air waduk hingga elevasi tertentu sebelum puncak banjir datang. Oleh karena itu dibutuhkan analisis terhadap efektifitas early release dalam mereduksi banjir Bendungan Bagong. Pemodelan debit banjir dan simulasi penentuan elevasi Control Water Level (CWL) menggunakan software HEC-HMS versi 4.10. Simulasi penentuan elevasi CWL dengan 4 skenario operasi pelimpah dan Outlet. Hasil simulasi skenario B dengan bukaan satu pintu setinggi 2,5 meter didapatkan CWL untuk Q10 pada elevasi +324,5 dan Q25 elevasi +323. Hasil simulasi D dengan operasi bukaan 2 pintu pelimpah setinggi 2,5 meter dan Outlet didapatkan CWL untuk Q50 pada elevasi +322, Q100 elevasi +320,9, Q200 elevasi +320, dan Q1000 elevasi +317,9. Operasi early release Bendungan Bagong didapatkan elevasi CWL yang efektif dalam mereduksi banjir hilir bendungan pada elevasi +323, +322, dan +320,9
Sistem Klasifikasi Dan Deteksi Kendaraan Otomatis Dengan Custom Dataset YOLOv8 (Studi Kasus: Kota Balikpapan)
No full textCurrently the counting survey is still being carried out manually using surveyors. The challenges include the need for high concentration, energy-draining tasks, and the requirement for a considerable number of surveyors, which are drawbacks in manual data collection. An approach can be taken by fully replacing it with the utilization of artificial intelligence. Using deep learning, research is conducted to design an automatic vehicle detection system by employing the YOLOv8 algorithm as a real-time based vehicle detection. Then, an analysis is performed to test the model's consistency in detecting six classified vehicle objects passing through one of the CCTV videos in Balikpapan's Transportation Agency (Dishub). Based on the analysis, the system's performance is obtained with the following accuracy rates: highest during the day, 96.92%–100%; lowest at night, 91.43%–100%. F1-Score values: highest at night, 80%–100% then in the morning and during the day, 67%–100%
Dewan Redaksi
Get PDFPuji syukur kehadirat Tuhan Yang Maha Esa atas rahmat dan karunia-Nya, sehingga edisi Volume 9 (Nomor 4) tahun 2025 ini dapat diterbitkan.Terbitan jurnal ini memuat kumpulan artikel ilmiah terpilih yang berfokus pada Pemeliharaan dan Rehabilitasi Aset. Tujuan dari publikasi ini adalah untuk memfasilitasi pertukaran informasi akademis, dalam pengembangan ilmu pengetahuan di bidang terkait.Kami mengucapkan terima kasih yang sebesar-besarnya kepada para penulis yang telah mempercayakan artikel ilmiah terbaiknya untuk diterbitkan di jurnal ini, serta kepada para mitra bestari (peer-reviewers).Akhir kata, kami mengharapkan jurnal ini dapat menginspirasi penelitian-penelitian selanjutnya, bagi para akademisi, peneliti, mahasiswa, dan praktisi di Indonesia.Pemimpin Redaks