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All Journal Journal of Degraded and Mining Lands Management Jurnal Teknik Sipil Journal of Geoscience, Engineering, Environment, and Technology Civil Engineering Journal SIKLUS: Jurnal Teknik Sipil Jurnal Aplikasi Teknik Sipil Jurnal Rekayasa Sipil Astonjadro Jurnal Pensil : Pendidikan Teknik Sipil APTEK IGKOJEI: Jurnal Pengabdian Masyarakat Journal of Infrastructure and Civil Engineering SAINSTEK J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Jurnal Teknologi & Rekayasa Sipil SLUMP TeS : Jurnal Teknik Sipil Jurnal Bangunan: Konstruksi & Desain Jurnal Jalan Jembatan Journal of Infrastructure and Construction Technology
Satibi, Syawal
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Veterinary Other

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Journal : astonjadro

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COMPRESSIVE CAPACITY OF HELICAL PILE FOUNDATION ON PEAT WITH VARIATION OF HELICAL PLATE DIAMETER Adi, Sapria; Fatnanta, Ferry; Satibi, Syawal
ASTONJADRO Vol. 11 No. 1 (2022): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v11i1.5708

Abstract

The use of helical foundations to support structures on peat soil is still a new method. Research is needed to develop this foundation. There are 6 types of helical foundation tested on peat soil. To study the effect of helical plate diameter, plate diameters were varied with sizes 25 cm (M), 35 cm (L), and 45 cm (G). Plate positions (1, 2, 3 plates) are designed at 300 mm spacing. The axial compression bearing capacity test is carried out based on the constant rate of penetration procedure. At the beginning of loading, the load increases significantly. At a certain descent, the load begins to decrease slowly. The load-settlement curve shows that the larger the plate diameter, the greater the load it can withstand. The largest bearing capacity is produced by the GGG 30 foundation (3 plates dia.45 cm), which is 10.83 kN. LLL 30 helical foundation (3 plates dia.30 cm) provides a bearing capacity of 7.14 kN. These results clearly explain that the increase in plate diameter is directly proportional to the increase in the axial compression bearing capacity.
Analysis of the Capability of Pile Assembly Foundations in Soft Soil in Physical Modeling of Variationsiin Laboratory Scale Distances Rahman, Arief; Fatnanta, Ferry; Satibi, Syawal
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.8139

Abstract

The capacity of raft foundations, pile foundations and pile rafts on soft soil with variations in the distance between the piles. Perform analysis of the carrying capacity and settlement of each foundation test and then compare the results of the theoretical carrying capacity research with the analysis of carrying capacity calculations. The implementation of the test prepares the test along with samples of the raft foundation, pile foundation and pile raft foundation. The test were carried out using a gradual load then a dial gauge is placed at both ends of the sample raft and the load reading is taken. The pile foundation was tested with a decrease of 10 cm while the settlement on the raft foundation and the pile raft foundation was 3 cm, the carrying capacity of the raft foundation was 24 kg, the pile foundation varied 4D distances; 6D and 8D, namely 7.5 kg and the foundation of the pile raft with variations in 4D distance; 6D and 8D are 26 ; 32 and 32 kg. In the interpretation method, the pile raft foundation with various distances increased from 4D to 6D but decreased in 8D. Pile raft foundations with various distances between pile have not a significant effect where raft foundations are more dominant in supporting resistance than pile foundations.
Numerical Analysis of The Effect of Creep on The Settlement and Failure Pattern of Helical Piles Foundations Satibi, Syawal; Fatnanta, Ferry; Aprillia. H.R., Bella
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.19152

Abstract

Peat soil is a unique type of soft soil that has a low bearing capacity and experiences significant creep effect. This inherent challenge necessitates effective improvement methods to enhance its stability, among which helical pile foundations stand out as a viable solution. Despite their promising application, the nuances of how creep influences the performance of these helical piles in peat soil remain largely unexplored. This study aims to analyse the effect of creep on the settlement and failure pattern of helical pile foundations in peat soils. Axis-symmetric two-dimensional numerical analyses using the finite element method were carried out to model helical piles foundations with varying creep indices (Cα) and differing spacings between the helical plates (1D and 3,5D). The results showed that the effect of creep caused the settlement of helical piles to increase as the value of Cα increases. However, the changes of excess pore water pressure around the helical pile foundation were not significantly affected by the variation of Cα value. In addition, the failure patterns of helical piles foundations were not affected by the creep effect, with the failure mechanism still following the cylindrical shear pattern for the 1D inter-plate spacing and the individual bearing pattern for the 3,5D inter-plate spacing. This study provides insight into the importance of considering the effect of creep in the design of helical piles foundations in peat soils for long term use.
Co-Authors A. S. Muntohar Adi, Sapria Agus Ika Putra Agus Ika Putra Agus Nugroho, Soewignjo Andius Dasa Putra Andriani Andriani Aprillia. H.R., Bella Ari Sandhyavitri Arief Rahman Arisman Adnan Azizi, Wildan Enno Yuniarto Febrizal Ujang Ferry Fatnanta Gunawan Wibisono Gunawan Wibisono Hasibuan, Putra S HR, Bella Aprilia Imam Suprayogi Iskandar Romey Sitompul Ismeddyanto, Ismeddiyanto Jufri, Afdirman K Khairat Khairat, K Khairul Amri Koichi Yamamoto, Koichi Lala Monang Robert Christian Zega Leo Sentosa Leo Sentosa M. Yusa Mardani Sebayang Mohammad Saeri Monita Olivia Muhamad Yusa Muhammad Saeri, Muhammad Muhammad Yusa Muhammad Yusa Muhardi Nugroho, Soewignjo A. Raflyatullah Raflyatullah Raflyatullah, Raflyatullah Rinaldi Rinaldi Ropiska Alfareza Rosma, Iswadi Hasyim S. Siswanto S. Siswanto Saputra, Riola Sihaloho, Dodi Seprades Soewignjo Agus Nugroho Soewignjo Agus Nugroho Subhan Pytar Wijaya Suratman Suratman Sutikno, Sigit Syamsu Herman Syamsu Herman Tiara Mahardika Wardani, S. P. Retno Yarvis Syahwaner Yusuf Agustamar Zega, Christian Robert Zega, Lala Monang Robert Christian Zulkifli Zulkifli