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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 PENGABDIAN KEPADA MASYARAKAT 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 Jurnal Teknik Sipil Jurnal Teknik Sipil
Aswin Lim
Universitas Katolik Parahyangan
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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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 Bambang Suharyadi; Aswin Lim; Rinda Karlinasari
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.
REHABILITATION AND RECONSTRUCTION OF LANDSLIDES IN THE AL-HUSAINIYYAH JUNIOR HIGH SCHOOL AREA REHABILITASI DAN REKONSTRUKSI LONGSORAN LERENG DI LINGKUNGAN SMP AL-HUSAINIYYAH Herni Setiawan; Yohanes Lim Dwi Adianto; Januar Yeremy; Tan Leonardi; Obaja Triputera Wijaya; Helmy Hermawan Tjahjanto; Budijanto Widjaja; Ignatius Tommy Pratama; Aswin Lim; Imam Ahmad Fadhil
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol. 32 No. 2 (2026): APRIL-JUNI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/9mcgc576

Abstract

Longsoran di lingkungan SMP Al-Husainiyyah tahun 2023 menyebabkan putusnya jalan penghubung, jalan lingkungan, saluran air drainase dikaki lereng sehingga mobilitas warga terhambat. Tim Pengabdi Fakultas Teknik Universitas Katolik Parahyangan (UNPAR) telah mengidentifikasi penyebab longsor dan hasil kajian teknisnya dipublikasikan dalam jurnal Dinamisia Agustus 2024. Rehabilitasi dan rekonstruksi longsoran lereng diusulkan menggunakan sistem dinding penahan tanah (DPT) kantilever beton. Value engineering memutuskan mengganti material beton menjadi material batukali, pengisi sub-base jalan menggunakan sistem geofoam sebagai pengganti tanah urugan. Alternatif ini memberi value dari aspek pemilihan material dan metode pelaksanaan. DPT mendapat tekanan dorong lebih kecil dari geofoam. Perbaikan jalan penghubung selesai lebih cepat dan dapat berfungsi kembali. Hamparan geomat, hydroseeding, dan saluran air pada permukaan lereng, melindungi permukaan dari longsoran tanah. Ada enam kegiatan utama dalam konstruksi ini yaitu persiapan, Strauss Pile, DPT, geofoam, geomat, dan saluran. Komunitas sekolah dan masyarakat mendapatkan distribusi oksigen lebih banyak dengan menggunakan material pilihan ini. Kata kunci: dinding penahan tanah,  lapisan geofoam,  hamparan geomat, hydroseeding, saluran air  
Studi tentang Laju Perubahan Volume dan Konsolidasi Tanah Very Soft dan Ultra Soft Berdasarkan Teori Terzaghi dengan Menggunakan Uji Oedometer dan CPTu Maria Septhree Winna Sitohang; Paulus Pramono Rahardjo; Aswin Lim
Jurnal Teknik Sipil Vol 22 No 1 (2026): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v22i1.12973

Abstract

Very soft and ultra soft soils are types of soil with high water content, very soft consistency, and low bearing capacity, making them susceptible to deformation and subsidence due to loading. This study aims to determine the correlation between volume change parameters and consolidation in very soft and ultra-soft soils based on laboratory testing (oedometer test) and in-situ testing (Cone Penetration Test with Pore Pressure Measurement/CPTu). The parameters studied include the consolidation coefficient (Cv), compression index (Cc), volume change coefficient (mv), and parameter α as the correlation between the mv value from the oedometer test and the corrected cone resistance (qt) value from CPTu. The results show that the Cv value varies with each increase in effective stress. Additionally, the consistency of the α correlation values indicates that CPTu can be used to quickly and efficiently estimate volume change coefficient (mv) values in the field. Therefore, CPTu can serve as an alternative for predicting the behavior of very soft and ultra-soft soil conditions in situ in a more representative manner. 
PERBANDINGAN PERILAKU PERBAIKAN TANAH METODE PRELOADING VAKUM DAN PRELOADING TIMBUNAN DENGAN ELEMEN HINGGA 2D Zakwan Gusnadi; Paulus Pramono Rahardjo; Aswin Lim
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
Evaluation of Basal Heave Stability for Deep Excavations in Clay using the Discontinuity Layout Optimization Method Angela Dewi Maharani Susiyanti; Aswin Lim
Civil Engineering Dimension Vol. 28 No. 1 (2026): MARCH 2026
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.28.1.83-100

Abstract

clay soils, which often causes significant ground movement and threatens nearby structures. Traditional analysis methods generally assume homogeneous soil conditions and ignore the variation of strength with depth, which limits their application in complex field situations. This research investigates basal heave stability using the Discontinuity Layout Optimization (DLO) method, which identifies critical failure mechanisms by optimizing potential discontinuities in the soil mass. The research examines the influence of undrained shear strength (Su​), its gradient, and the excavation width-to-height ratio (B1​/H) on the safety factor, considering homogeneous and layered soil models. Results show that the safety factor increases with higher Su​ values but decreases as B1​/H increases. While the DLO method provides reliable predictions for homogeneous soils, but it shows limitations in layered soils. Therefore, for more accurate results in complex stratigraphy, integrating DLO with the Finite Element Method (FEM) is recommended.
Shear Strength Characteristics of Calcium Oxide and Guar Gum Treated Loose Petobo Silty Sand Yohanes Albrecht Montol; Aswin Lim; Paulus Pramono Rahardjo
Journal of Applied Engineering and Technological Science (JAETS) Vol. 5 No. 2 (2024): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v5i2.2583

Abstract

This article presents the shear strength characteristics of Petobo Silty Sand which are treated with Calcium Oxide and Guar Gum. The purpose of this experimental works is looking for other binding agents to replace the application of cement which is considered not an environmentally friendly material. The shear strength of treated soils was examined using the direct shear test. Guar gum and Calcium Oxide provides additional cohesion to Petobo silty sand. The cohesion and internal friction angle could increase to about 900 kPa and 47.5°, respectively. The treated sample also shows the dilation behavior in dry conditions. However, after 24 hours soaking period, the soil behavior returned to the contraction behavior. This behavior is unfavorable in the case of the treated sample below the groundwater table. Hence, these two binding agents are effective for dry soil conditions. In addition, Scanning Electron Microscope images of treated silty sand were obtained which aims to examine the microscopic behavior of the fibers and matrices that were formed through the hydration process.
Co-Authors Adrianus Renaldy Aglia, Grisella Ahmad Kemal Arsyad Albert Sebastian Aldrianita, Tabitha Alfrendo Satyanaga Alfrendo Satyanaga Anastasia Sri Lestari Andra Ardiana Andy Sugianto Andy Sugianto Angela Dewi Maharani Susiyanti Anthonius Steven Sutanto Ardiana, Andra Arif Yunando Soen Arif Yunando Sunanhadikusuma Bambang Suharyadi Bobby Minola Ginting 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 Herni Setiawan Herry Suryadi Djayaprabha Hizbulmalik, Ziyan Ignatius Tommy Pratama Ihut, Karolina Villa Delfia Imam Ahmad Fadhil Januar Yeremy Jogiadinata, Evelyn Johannes Adhijoso Tjondro Lie, Edwin Maria Septhree Winna Sitohang Martin Wijaya Muhammad Hanif Muhammad, Dary Aulia Obaja Triputera Wijaya Octavianus Arvin Sukiwan Paulus Pramono Paulus Pramono Rahardjo Putra, Heriansyah Rinda Karlinasari Simon Heru Prassetyo Siska Rustiani Stefani Wiguna Susiyanti, Angela Dewi Maharani Syifanaya, Sharfina Faradiba Sylvia Herina Tan Leonardi Theresita Herni Setiawan Varian Harwin Batistuta Verguson, Yoghi Jo Vienti Hapsari Vinna Fransiska Chou Wellyanto Wijaya Widjaja, Hasky Wijaya, Martin William, Octavianus Yiska Vivian Chritiansen Wijaya Yohanes Albrecht Montol Yohanes Albrecht Montol Yohanes Lim Dwi Adianto Zakwan Gusnadi