Article Per Year (5 Year)
p-Index From 2021 - 2026
4.529
P-Index
This Author published in this journals
All Journal Inersia : Jurnal Teknik Sipil dan Arsitektur MEDIA KOMUNIKASI TEKNIK SIPIL Research Report - Engineering Science Jurnal Teknik Sipil Jurnal Teknik Sipil dan Perencanaan Jurnal Teknik Sipil Teras Jurnal Journal of the Civil Engineering Forum U Karst Civil Engineering Dimension Dinamisia: Jurnal Pengabdian Kepada Masyarakat BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil SIKLUS: Jurnal Teknik Sipil Jurnal Aplikasi Teknik Sipil Jurnal Rekayasa Sipil Journal of Applied Engineering and Technological Science (JAETS) Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil APPLIED RESEARCH ON CIVIL ENGINEERING AND ENVIRONMENT (ARCEE) Journal of the Civil Engineering Forum Makara Journal of Technology Indonesian Geotechnical Journal
Aswin Lim
Jurusan Teknik Sipil, Fakultas Teknik Universitas Katolik Parahyangan, Bandung
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

Published : 39 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 39 Documents
Search

 1   2   3   4 
Dampak Model Tanah Pada Analisis Metode Elemen Hingga 2 Dimensi Terowongan NATM : Studi Kasus Terowongan Manikin Hanif, Muhammad; Lim, Aswin; Wijaya, Martin; Prassetyo, Simon Heru
Siklus : Jurnal Teknik Sipil Vol. 9 No. 2 (2023): Siklus: Jurnal Teknik Sipil
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/siklus.v9i2.15936

Abstract

Konstruksi terowongan melalui tanah lempung sensitif terhadap air dapat menyebabkan deformasi berlebihan pada dinding terowongan. Untuk dapat memprediksi deformasi yang terjadi pada terowongan melalui tanah lempung ekspansif, model konstitutif tanah yang sesuai dibutuhkan agar pemodelan memberikan hasil analisis yang memuaskan. Makalah ini berisi mengenai fenomena swelling tanah pada Terowongan Manikin di Kupang. Analisis deformasi terowongan menggunakan metode elemen hingga 2D dengan bantuan program Plaxis2D dilakukan untuk memberi prediksi terhadap deformasi yang terjadi pada terowongan Manikin. Analisis dilakukan menggunakan dua model konstitutif tanah, model keruntuhan Mohr-Coulomb dan Hardening Soil. Penggunaan kedua model tersebut dilakukan untuk mengetahui dampak serta pengaruh dari kedua model konstitutif tanah terhadap nilai deformasi pada terowongan melalui tanah ekspansif. Untuk dapat memodelkan fenomena swelling pada tanah, dikerahkan beban tambahan pada dinding terowongan yang berperan sebagai tekanan swelling pressure. Dengan metode ini, analisis menggunakan simulasi numerik dapat menyerupai deformasi dari hasil pengawasan di lapangan. Hasil simulasi numerik menunjukan bahwa desain sistem penyangga asli menggunakan model MC dan HS memberikan deformasi sebesar 921,5 mm (11,8%) dan 900 mm (11,5%). Dua alternatif sistem penyangga awal diusulkan, menggunakan steel ribs dengan profil lebih besar dan Umbrella Arch Method (UAM). Kedua alternatif secara signifikan memberikan hasil deformasi yang lebih kecil dari desain awal. Steel ribs yang lebih besar memberikan deformasi terkecil menggunakan model MC sebesar 412 mm (5,2%), sedangkan UAM memberikan deformasi terkecil pada model HS dengan deformasi sebesar 247 mm (3,1%).
Karakteristik Kompresibilitas dan Kuat Geser pada Tanah Lempung Berdasarkan Uji CPT, SPT dan Laboratorium di Cikarang: Compressibility and Shear Strength Characteristics of Clay Based on CPT, SPT and Laboratory Tests in Cikarang Suharyadi, Bambang; Lim, Aswin; Karlinasari, Rinda
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 12 No 1 (2024): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Januari 2024)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v12i1.7356

Abstract

The Jakarta-Cikampek Elevated toll road was built to add to the existing toll road section. In this project, the field investigation tests carried out are the Cone Penetrartion test (CPT) and the Standard Penetration Test (N-SPT). Many studies have been conducted to obtain the compressibility value (cc) and shear strength value (su) of clay because each clay in a region has different compressibility characteristics and shear strength values. This study aims to determine the compressibility characteristics and shear strength of clay in the Cikarang area by using field investigation data in the form of CPT test of 10 points and N-SPT test of 12 points and laboratory data used from N-SPT drill points of 21 tube samples. CPT and N-SPT data are grouped based on the closest distance, the test area is dominated by Sandy clay and the linear regression equation obtained from both data relationships is qc = 0.51N with an upper limit equation qc = 1.2N and for the lower limit qc = 0.2N. From the results of the analysis for the shear strength value of the soil obtained from the relationship of the shear strength value of the soil to the N-SPT of Su = 8N-SPT, and for the level of compressibility at the location in Cikarang has a high level of compressibility with the relationship of compressibility to the pore number (eo) obtained equation Cc = 0.40eo and with the level of activity of relatively inactive clay soil.
Finite Element Analysis of Vacuum Preloading Effect on Lateral Deformation: A Case Study of Road Embankment Lim, Aswin; Widjaja, Hasky; Erdian, Andreas
Applied Research on Civil Engineering and Environment (ARCEE) Vol. 5 No. 02 (2024)
Publisher : POLITEKNIK NEGERI JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/arcee.v5i02.6297

Abstract

Soft soil layers are commonly found in Indonesia, which can bring problems in geotechnical engineering. These conditions can be improved by using physical and/or mechanical properties conditions. Physical and mechanical properties conditions can be changed by preloading method. Preloading method can be applied together with the vacuum pressure. The combination of both methods can consolidate soil layer more rapidly. The method was applied to a project road in Jakarta. In this project, vacuum pressure can give more pressure or suction on the soil layer. On this research, lateral movement occurred were predicted by some effects from the vacuum consolidation. The software program from PLAXIS 2D was used to analyze the lateral movement subjected the water suction. According to the results, vacuum preloading should be performed safely with the distance of more or less 22 meters and the usage of vacuum method will accelerate consolidation.
Perbaikan Tanah Lunak Menggunakan Campuran Ferronickle Slag Dan Kalium Serta Natrium Hidroksida Lim, Aswin; Darian, Evan
Jurnal Rekayasa Sipil (JRS-Unand) Vol. 18 No. 3 (2022)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.18.3.202-213.2022

Abstract

Tanah lunak merupakan salah satu tanah yang bermasalah pada dunia konstruksi karena memiliki kuat geser tanah yang rendah serta kompresibilitas yang tinggi. Perbaikan tanah merupakan salah satu solusi untuk menghadapi masalah ini. Pada penelitian ini, tanah Kaolin digunakan untuk memodelkan karakteristik tanah lunak. Material ferronickel slag yang merupakan limbah produksi nikel digunakan sebagai binding agent, pengganti semen yang sudah sering digunakan untuk perbaikan tanah. Selain itu, larutan alkali (kalium hidroksida dan natrium hidroksida) yang memiliki konsentrasi tinggi digunakan sebagai aktivator untuk mengaktivasi kaolin sehingga terjadi proses pembentukan geopolimer. Pada penelitian ini, massa slag yang digunakan adalah 10% dari massa kaolin, sedangkan larutan alkali yang digunakan adalah dengan variasi 6 M, 8M, dan 10M. Setelah kaolin dicampur dengan komposisi yang ditentukan, dilakukan masa curing selama 7, 14, dan 28 hari sebelum sampel dilakukan uji kuat tekan bebas. Dari hasil pengujian, dapat disimpulkan bahwa larutan natrium hidroksida lebih efektif digunakan sebagai aktivator, serta kuat tekan bebas sampel paling tinggi berada pada masa sampel berumur 28 hari setinggi 933 kPa dengan konsentrasi 8M. Sedangkan, nilai kuat tekan bebas dengan larutan kalium hidroksida adalah 896 kPa dengan konsentrasi 10M. Selanjutnya, uji Scanning Electron Microscope  dan X-Ray Fluoresence Spectrometer juga dilakukan pada menginvestigasi ikatan kimia yang terjadi pada sampel. Dari uji SEM dan XRF, terbukti juga sampel campuran membentuk gugus/ikatan geopolymer, dan reaksi kimia terjadi. Penambahan Kalium Hidroksida akan menambah senyawa K2O, dan penambahan natrium hidroksida akan menambah senyawa Na2O. Hal ini dapat menjelaskan alasan meningkatnya kuat tekan bebas tanah campuran.
Evaluation of ASTM D 1143/D 1143M-07 and Chinese Code JGJ 106-2014 for Pile Load Testing using Finite Element Method Aswin Lim; Octavianus Arvin Sukiwan
Civil Engineering Dimension Vol. 25 No. 2 (2023): SEPTEMBER 2023
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.25.2.126-134

Abstract

Pile foundation is a structural element utilized to transmit structural load into the soil mass. During design processes, many empirical equations used to estimate axial pile capacity, and a pile load test is conducted to validate the design. In Indonesia, it is common to adopt ASTM D 1143/D 1143M-07 for pile testing. Chinese Code JGJ 106-2014 is another viable option, which has gained popularity recently. This study investigated the load–settlement curves obtained using both codes. The analyses were simulated using the Mohr–Coulomb and the Hardening Soil models. The Hardening Soil model yielded more reasonable load–settlement and load–excess pore water pressure curves than the Mohr–Coulomb model. The reason due to the Mohr–Coulomb model unable to capture the non-linear behavior of soil properly. Furthermore, the results showed that ASTM D 1143/D 1143M-07 and JGJ 106-2014 yielded comparable results. Hence, both methods could be substituted each other.
PERBANDINGAN PERILAKU PERBAIKAN TANAH METODE PRELOADING VAKUM DAN PRELOADING TIMBUNAN DENGAN ELEMEN HINGGA 2D Gusnadi, Zakwan; Rahardjo, Paulus Pramono; Lim, Aswin
Teras Jurnal : Jurnal Teknik Sipil Vol. 11 No. 2 (2021): Volume 11 Nomor 2, September 2021
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v11i2.513

Abstract

Abstrak Perbaikan tanah lunak dengan pra-beban (preloading) dimaksudkan untuk mereduksi penurunan pada masa operasional dan meningkatkan kekuatan tanah. Preloading dalam perbaikan tanah lunak biasanya dikombinasikan dengan Prefabricated Vertical Drain (PVD) guna mempercepat proses disipasi air pori. Metode preloading dapat dilakukan dengan cara konvensional menggunakan timbunan ataupun dengan tekanan vakum. Untuk mengetahui perilaku preloading dengan tekanan vakum ini digunakan metode elemen hingga 2D menggunakan program bantu ABAQUS (berasal dari nama alat hitung Abacus). Hasil analisis menunjukan pada hari ke 217 perbaikan preloading vakum menghasilkan penurunan sebesar 1,23 m dan preloading timbunan menghasilkan penurunan sebesar 1,18 m, namun pola penurunan yang terjadi dengan preloading vakum terlihat lebih besar pada 35 hari pertama perbaikan. Pada perubahan tekanan air pori preloading vakum menunjukan reduksi tekanan air pori, sedangkan dengan preloading timbunan tekanan air pori meningkat pada masa konstruksi dan tereduksi pada masa perbaikan. Lebih lanjut pada perilaku deformasi lateral di kaki timbunan, metode preloading vakum menunjukan pergerakan lateral ke arah dalam area perbaikan sedangkan dengan preloading konvensional pergerakan lateral tanah terjadi ke arah luar area perbaikan. Kata kunci: ABAQUS, Elemen Hingga 2D, Perbaikan Tanah, Vakum Preloading Abstract Improvement of soft soil by preloading is intended to lower the settlement of operation time and increasing soil strength. Preloading in the improvement of soft soil usually combined with Prefabricated Vertical Drain (PVD) to accelerate the pore water dissipation process. The preloading method can be done in a conventional way using the embankment or vacuum pressure. To find out the behaviour of preloading with this vacuum pressure, we used the finite element method 2D by using the ABAQUS support program. The result of the analysis shows on the 217th day, vacuum preloading improvement produces a settlement by 1.23 m and the embankment preloading produce 1.18 m, but the settlement pattern that occurs with preloading vacuum was seen to be greater in the first 35 days of improvement. In terms of changes in pore water pressure on vacuum preloading shows that the pattern of pore water pressure is reduced, while with pore eater pressure on preloading heap increased during construction and reduced during improvement. Further on the lateral movement behaviour in the toe of the embankment, the vacuum preloading method shows the lateral movement towards the improvement area while embankment preloading shows the lateral movement occurs towards the outside of the improvement area. Keywords: ABAQUS, Finite Element 2D, Soil Improvement, Vacuum Preloading
Pengembangan Teori Tekanan Lateral Aktif pada Dinding Penahan Tanah Menggunakan Metode Elemen Hingga Hizbulmalik, Ziyan; Lim, Aswin
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 9 No. 2 (2025)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v9i2.19223

Abstract

Estimating the value of lateral earth pressure acting on a rigid retaining wall is very important in the design of geotechnical structures. Various theories have been developed to calculate lateral earth pressure, each with it is own methodologies, equations, and assumptions. However, none of the studies above considered the lateral earth pressure equation based on the finite element method. In this study, conventional methods and finite element methods are used to determine the amount of active lateral earth pressure that occurs in the retaining wall, and a finite element method-based equation of active lateral earth pressure is proposed. Parametric experiments were also conducted to determine the active lateral earth pressure distribution's response to various parameters.
Landslide Treatment in the Al-Husainiyyah Junior High School Area using Cantilever-Geofoam Wall: Penanganan Longsor di Lingkungan SMP Al-Husainiyyah dengan Menggunakan Dinding Kantilever-Geofoam Lim, Aswin; Pratama, Ignatius Tommy; Widjaja, Budijanto; Tjahjanto, Helmy Hermawan; Tjondro, Johannes Adhijoso; Wijaya, Obaja Triputera; Ginting, Bobby Minola; Setiawan, Theresita Herni; Adianto, Yohanes Lim Dwi; Hidayat, Felix; Hartieni, Patricia; William, Octavianus; Aldrianita, Tabitha; Fadhil, Imam Ahmad
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 4 (2024): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v8i4.19519

Abstract

A landslide triggered by heavy rainfall occurred in the Al-Husainiyyah Junior High School area on April 26th, 2023. The landslide damaged the nearby access roads, the existing retaining wall, and a futsal court threatening the safety of the teachers and students in conducting the learning activities that especially require open areas. Thus, this community service aims to provide a cantilever wall design with geofoam as an innovative lightweight backfill material to reinforce the slope and repair the damaged structures. Field surveying and numerical analysis were then conducted to understand the current slope and soil conditions and to analyze the stability of the slope and retaining wall. The results show that a cantilever wall with a total height of 1.8 m supported by a strauss pile row with a diameter of 0.4 m, 4 m in length, and 2.5 m in spacing could increase the stability of the slope.
Determination of Excess Pore Pressure in Under Consolidating Soil by using CPTu Ihut, Karolina Villa Delfia; Wijaya, Martin; Lim, Aswin; Satyanaga, Alfrendo; Aglia, Grisella; Syifanaya, Sharfina Faradiba; Sugianto, Andy
Makara Journal of Technology Vol. 29, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

North Jakarta is predominantly composed of soft soil that is still undergoing consolidation. According to research by Raharjo et al. (2022), excess pore pressure is still present in the soils of Jakarta. The degree of consolidation and excess pore pressure values indicate that consolidation is not yet complete (Raharjo et al., 2022). In this study, the researchers developed two methods to determine excess pore pressure using field testing. The Stress History and Normalized Soil Engineering Properties (SHANSEP) model equation from Ladd and Foot (1974), as well as Finite Element Method (FEM) modeling using the PLAXIS program, were utilized to estimate the excess pore pressure in the soil. The results from the SHANSEP-based analysis were then compared with those from the FEM analysis using PLAXIS. The comparison showed that the excess pore pressure estimated using PLAXIS closely matched the values obtained from CPTu tests based on the SHANSEP model. Interpretation of parameters from the Cone Penetration Test with pore pressure measurement (CPTu) indicates that the soil at the project site is still consolidating and undergoing settlement. Similarly, the settlement results from the PLAXIS analysis support this conclusion.
Co-Authors Adrianus Renaldy Aglia, Grisella Ahmad Kemal Arsyad Aldrianita, Tabitha Alfrendo Satyanaga Alfrendo Satyanaga Anastasia Sri Lestari Andra Ardiana Andy Sugianto Andy Sugianto Anthonius Steven Sutanto Ardiana, Andra Arif Yunando Soen Arif Yunando Sunanhadikusuma Bobby Minola Ginting Budijanto Widjaja Budijanto Widjaja Cheryl, Monica Frances Christian William Munaba Clinton Girsang Darian, Evan Dary Aulia Muhammad David Kristian Erdian, Andreas Evan Darian Ezra Yoanes Setiasabda Tjung Fadhil, Imam Ahmad Felix Hidayat Gofar, Nurly Hartieni, Patricia Helmy Hermawan Tjahjanto Henky Muljana Henky Muljana Herry Suryadi Hizbulmalik, Ziyan Ignatius Tommy Pratama Ihut, Karolina Villa Delfia Jogiadinata, Evelyn Johannes Adhijoso Tjondro Karlinasari, Rinda Lie, Edwin Martin Wijaya Muhammad Hanif Muhammad, Dary Aulia Octavianus Arvin Sukiwan Paulus Pramono Paulus Pramono Rahardjo Prassetyo, Simon Heru Putra, Heriansyah Siska Rustiani Stefani Wiguna Suharyadi, Bambang Syifanaya, Sharfina Faradiba Sylvia Herina Theresita Herni Setiawan Varian Harwin Batistuta Verguson, Yoghi Jo Vienti Hapsari Vinna Fransiska Chou Wellyanto Wijaya Widjaja, Hasky Wijaya, Martin Wijaya, Obaja Triputera William, Octavianus Yiska Vivian Chritiansen Wijaya Yohanes Albrecht Montol Yohanes Lim Dwi Adianto Zakwan Gusnadi