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All Journal Prosiding Semnastek Journal of Applied Geospatial Information Jurnal Ilmiah Universitas Batanghari Jambi Astonjadro Journal of Community Based Environmental Engineering and Management JURNAL REKAYASA Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil Journal of Applied Civil Engineering and Infrastructure Technology (JACEIT) Tameh : Journal of Civil Engineering Prosiding Seminar Nasional Rekayasa dan Teknologi (TAU SNAR- TEK) Rona Teknik Pertanian INTER TECH
Fadhila Muhammad Libasut Taqwa
Universitas Ibn Khaldun
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Transportation Other

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Journal : Astonjadro

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STUDI KELAYAKAN PEMBANGUNAN ALUR PELAYARAN DI MUARA SUNGAI CIUJUNG LAMA KABUPATEN SERANG Muhammad LT, Fadhila; Hariati, Feril
ASTONJADRO Vol. 2 No. 2 (2013): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v2i2.796

Abstract

Rencana normalisasi Sungai Ciujung Lama yang mengalami sedimentasi meliputi perkuatan tebing saluran dan konstruksi pelindung pantai. Studi keandalan kapasitas saluran dilakukan untuk mengetahui debit dan kecepatan rencana kanal, juga untuk mengetahui ketahanan dinding saluran terhadap penggerusan. Hasil perhitungan dimensi kanal yang direncanakan berupa saluran trapesium dengan lebar dasar 20 meter, lebar puncak 48 meter dan tinggi 7 meter, memiliki debit maksimum 473,79 m3/detik, debit aliran normal 249,41 m3/detik, dan debit jagaan 224,38 m3/detik. Kecepatan aliran maksimum adalah 1,99 m/detik, dan kecepatan aliran normal adalah 1,66 m/detik jauh melebihi kecepatan yang diizinkan sebesar 0,002 m/detik, menunjukkan bahwa dinding saluran tidak aman terhadap erosi, sehingga direncanakan perkuatan dengan mempergunakan pasangan batu kosong (riprap) dengan berat butir antara 10-60 kg, lapis pasir kasar dengan tebal 20 cm, dan filter berupa lapis geotekstil dengan bukaan O95 0,033 mm. Sedangkan perencanaan konstruksi pelindung pantai dilakukan dengan menentukan tinggi gelombang representatif H10, penentuan kondisi gelombang, tinggi muka air rencana, dan penentuan elevasi puncak revetmen. Perencanaan struktur pelindung pantai berupa revetmen dengan tinggi 6.00 meter, kemiringan 1:2, material penyusun blok beton segmental dengan tebal 0,35 meter, lapis pasir kasar dengan tebal 20 cm, dan filter berupa lapis geotekstil dengan bukaan O95 0,024 mm.
FINITE ELEMENT METHOD MODELLING OF STEEL SHEET PILE STRUCTURE ON DEEP FOUNDATION EXCAVATION Lutfi, Muhamad; Berangket, Rustama; Taqwa, Fadhila Muhammad Libasut
ASTONJADRO Vol. 11 No. 2 (2022): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v11i2.6302

Abstract

Evaluation modelling of the OT-22 steel sheet pile wall with type H-350 steel strutting reinforcement in the excavation for the foundation structure with a depth of 7.50 meters was carried out to get the value of the safety factor and wall stability. The evaluation stages include subgrade investigation using the SPT method, data collection of profile steel properties used, interpretation of soil data, staged-construction modeling using the Finite Element Method (FEM) computer application, and analysis of modeling results. From the research that has been done, the value of maximum bending moment (Mmax) is 223.8 kNm/m', the magnitude of the axial force that occurs in the strut members is 22.51 kN, 121.91 kN, and 66.10 kN respectively. The value of maximum lateral displacement (Ux) is 62.4 mm. From these results, it can be concluded that the lateral displacement (Ux) that occurs is much larger than allowable displacement (Uall) 39 mm. Thus, it is necessary to modify the existing sheet pile wall system, such as to change the dimensions of the steel sheet pile, changing the dimensions of the steel strutting, or changing the distance of the steel strutting.
Analysis of Cantilever Retaining Wall as Landslide Mitigation on a Tributary of Cisadane River Bogor City Lutfi, Muhamad; Chayati, Nurul; Rulhendri, Rulhendri; Taqwa, Fadhila Muhammad Libasut; Ramadan, Fahreza Rahmatsyah
ASTONJADRO Vol. 12 No. 3 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i3.7013

Abstract

Bogor City has a high level of rainfall and is included in an area with a high potential for landslides. In March 2021, there was a landslide in a densely populated residential area at RT. 02/03 Cipaku Village, Bogor Selatan District. The landslide occurred on the slopes at the tributary of Cisadane River and adjacent to the nearest connecting bridge. The length of the landslide is 6 meters and as high as 7 meters from the water surface. Mitigation steps to prevent subsequent landslides are needed by constructing a retaining wall, so a cantilever-type retaining wall is chosen by considering the soil parameters and landslide conditions. The results of the analysis show that the stability of the retaining wall against shear (Fs) = 1.04 < SF = 1.5 and for stability against overturning (Fo) = 0.56 < SF = 1.5. Thus, the overall retaining wall is not able to withstand the load of the soil behind it. In terms of stability to the bearing capacity of the soil, the ultimate soil capacity (qs) = 94.149 kN/m2 > V = 243.535 kN/m2. Thus, the subgrade can withstand the load of the retaining wall. Therefore, to meet shear stability and overturning stability, the retaining wall is reinforced by using a bored pile foundation. The results of the foundation analysis showed that the allowable capacity (Qs) was obtained at 584.8 kN.
Co-Authors Afryansyah, Afryansyah Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin, Alimuddin ANDRI ARTHONO Apriliyandi, Ande Arthono, Andri Assiddiqy, Mohammad Hasby Azka fadilla setiawan Bambang Priyambodo, Bambang Berangket, Rustama Brillianto, Ananta Giga Chayati, Nurul Chika Restu Maulidina, Chika Dini Aryanti Ekadipta Ekadipta Fadhillah Sulaeman, Nur Handika Feril Hariati Fitri, Ria Handayani, Juny Idi Namara Insan, Muhammad Khaerul Iskandar, Anan Manlian Ronald A. Mardiaman, Mardiaman Moh Azhar Moh. Didi Haidir1 Muhamad Fadli Muhamad Lutfi Muhammad Dawud Muhammad Hasan Wicaksono Muhammad Ilham Muhammad Nanang Prayudyanto Muktadir, Redho Nandiasa, Jantiara Eka Nur Handika Fadhillah Sulaeman Pio Ranap Tua Naibaho Priyadi, Wisia Joko Putri, Andini Rizkarti Qonita, Nadhira Shofa Rahman, Ari Awalul Ramadan, Fahreza Rahmatsyah Ramadhan, Kurniawan Rulhendri Rulhendri Salman, Nurcholis Salman, Nurcholis Samsul Samsul Subkhan Subkhan Sudrajat, Endang Sugeng Riyadi Suhendar, Tatang Syaiful Syaiful . Wilter Sariyanto Simanjuntak Yasid, Viki Handika