The Analysis of Lateral Deformation of Diaphragm Wall by Using 2-Dimensional Finite Element Method in Basement Construction of the BRI Tower Medan
DOI:
https://doi.org/10.32832/astonjadro.v13i3.16027Keywords:
deformation; diaphragm wall; basement; deep excavation; finite element method.Abstract
Land availability for multi-storey buildings can be managed by constructing a multi-storey building with a basement. The basement construction of Menara BRI Medan is surrounded by office buildings. The soil is composed of sand, medium sand, clay silt, and gravel, resulting in the construction of a retaining wall comprised of a diaphragm wall 17,50 meters deep with a wall thickness of 0,60 meters. During the deep excavation work, the diaphragm wall was reinforced by temporary supports (strut). The strut installation consists of 2 layers with a distance of 3 meters in between struts. This minimizes the deformation that occurs. The lateral deformation was calculated using the finite element method in PLAXIS 2D with Mohr-Coulomb soil modeling at drill point BH-02. The deformation results in PLAXIS 2D will be compared with the on-site monitoring results by taking Inclinometer-I2 measurements. The result of the lateral deformation of the diaphragm wall from the analysis using PLAXIS 2D modeling was found to be 7,72 mm. In addition, the lateral deformation value from the monitoring results during the measurement of inclinometer-I2 on site was 7,55 mm. However, during the comparison between the deformation results in PLAXIS 2D and the monitoring results on site, discrepancies were identified due to alterations of parameters during the execution of the deep excavation work.
References
Badan Standarisasi Nasional. (2017). Standar Nasional Indonesia Tentang Persyaratan Perancangan Geoteknik. SNI 8460-2017.
Chang-Yu Ou. (1954). Deep Excavation. Theory and Practice.Taylor and Francis Group.
D.A. Sapin., SPbGASU., St.Petersburg. (2016). Additional technological settlements of the foundations of neighboring building during the construction of a diaphragm wall in the ground.
Das, B. M. (1993). Mekanika Tanah (Prinsip-Prinsip Rekayasa Geoteknis). Erlangga.
Das, B. M. (1998). Mekanika Tanah Jilid 2. Erlangga.
Fahriani, F. (2013). Analisis Galian Dalam pada Basement Gedung dengan Permodelan Soft Soil Menggunakan Program Plaxis. Forum Profesional Teknik Sipil, 1(2).
Hardiyatmo, H.C. (2003). Mekanika Tanah II. Gadjah Mada University Press.
Hazel, T., Leman, S. & Iskandar, A. (2019). Analisis Dinding Diafragma dengan Penghilangan Ringslab Secara Efektif pada Konstruksi Basement. Jurnal Mitra Teknik Sipil, 2(4).
Kurniawan, D. A. (2017). Perencanaan Dinding Penahan Tanah pada Basement Midtown Point and Ibis Styles Hotel Jakarta. Undergraduate Thesis, Institut Teknologi Sepuluh November.
Kusuma, R. I., Mina, E., & Amala, W. R. (2019). Analisis Deformasi Lateral Diaphragm wall dan Dewatering pada Konstruksi Basement (Studi kasus: Proyek The Ayoma Apartment, Serpong, Tangerang Selatan). Fondasi: Jurnal Teknik Sipil, 8(1).
Meyerhof, G. G. (1956). Penetration tests and bearing capacity of cohesionless soils. ASCEJ: Soil Mech Found Div, 82. 866–1019.
Novia Sabina, C. A. (2020). Proses Analisa Dinding Penahan Tanah Galian Basement 7 Lantai Dengan Metode Elemen Hingga. Jurnal Mita Teknik Sipil, III , 49-58
Raynaldi, R., & Susilo, A. J. (2021). Perbandingan Deformasi Dinding pada Basement Metode Top-Down dengan Analisis Construction Stage dan Analisis Konvensional. Jurnal Mitra Teknik Sipil, 4(3).
Wadino, F. (2018). Analisis Deformasi Dinding Basement pada Salah Satu Proyek di Sudirman Menggunakan Metode Back Analysis Dari Hasil Monitoring. Jurnal Mitra Teknik Sipil, 1(1).
Wijaya, C., Iskandar, A., & Prihatiningsih, A. (2020). Analisis Dinding Diafragma pada Konstruksi Basement di Jakarta dengan Menggunakan Program Elemen Hingga 3 Dimensi. JMTS: Jurnal Mitra Teknik Sipil, 3(2).
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 ASTONJADRO
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Paper submitted to ASTONJADRO is the sole property of the Astonjadro Journal. Unless the author withdraws the paper because he does not want to be published in this journal. The publication rights are in the journal Astonjadro.ASTONJADRO
LICENSE
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at http://ejournal.uika-bogor.ac.id/index.php/ASTONJADRO
