Article Per Year (5 Year)
p-Index From 2021 - 2026
2.233
P-Index
This Author published in this journals
All Journal Jurnal Spektran Research Report - Engineering Science IPTEK Journal of Proceedings Series Jurnal Teknik Sipil International Conference on Engineering and Technology Development (ICETD) JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Deformasi Jurnal Teknik Sipil U Karst Civil Engineering Dimension Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Aplikasi Teknik Sipil Jurnal Manajemen Aset Infrastruktur dan Fasilitas Journal of the Civil Engineering Forum Indonesian Geotechnical Journal International Journal of Engineering Continuity Jurnal Teknik Sipil
Budijanto Widjaja
Universitas Katolik Parahyangan
Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Transportation Other

Published : 29 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 29 Documents
Search

 1   2   3 
Perbandingan Profil Penurunan Muka Air untuk Akuifer Tidak Terkekang Menggunakan 3D Modflow Studi Kasus Pantai Indah Kapuk Susanto, Amalia; Widjaja, Budijanto; Wijaya, Martin
Jurnal Teknik Sipil Vol 21 No 2 (2025): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v21i2.9647

Abstract

Dewatering is required to control the flow of groundwater and to lower the position of the groundwater table during excavation. In planning the dewatering system, parameters related to the flow of water in the soil are required. One of these is the conductivity value, which can be obtained from pumping tests. The sand layer found on the ground surface, which is saturated of water, is referred to as an unconfined aquifer. In this study, conductivity analysis of unconfined aquifer was conducted in PIK2 area using 3 conventional methods which are, Thiem (1906) method and curve matching method of Boulton (1963) and Neuman (1972). Conductivity values obtained from conventional calculations are then analyzed using the help of a program based on the 3D finite difference method Modflow to obtain a pattern of groundwater level decline or can also be called a depression cone. In sandy soil in the PIK2 reclamation area, conductivity values of 5.90×10-5 m/s to 8.08×10-5 m/s were obtained Neuman's method can produce better conductivity values in unconfined aquifers, as shown by the results of the water table profile from the 3D Modflow analysis.
Negative Skin Friction Tiang Pancang pada Tanah Lempung Studi Kasus Pabrik Tesktil, Bale Endah Widjaja, Budijanto; Lestari, Anastasia Sri; Agusman, Agusman
Jurnal Teknik Sipil Vol 2 No 1 (2006): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v2i1.10359

Abstract

There were several geotechnical problems at the textile factory in Bale Endah. The main problem that arose at this factory was the settlement of the soft clay soil which resulted in deformation of the tiled floor and warping of the west wall of the factory as well as cracking and collapse of the culvert in the drainage system at the location of the center column of the factory. The soil stratification at this location was dominated by soft to stiff clay layers and a sand lens layer was also found at 9-12 m depth. Therefore, the relative subsidence was more determined by the consolidation settlement of the clay. In addition to the problem of clay settlement, another problem arises, namely the problem of negative skin friction on the pile foundation. This occurs because there is an embankment on top of the clay soil which results in additional load on the soil, so that the soil settlement becomes greater than the settlement of the pile foundation. The analysis showed that the total settlement of the clay consolidation was 35.60 cm within 12.00 years and the total settlement of the pile foundation with a column load of 16.72 tons was 10.44 cm. Due to negative blanket friction, the pile foundation used is not strong enough to withstand the working load. The location of the neutral point is at a depth of 23.25-28 m for a pile foundation length of 30 m deep.
Evaluasi Perilaku dan Viskositas Material Pasir Kelanauan pada Kondisi Terlikuifaksi dengan Menggunakan Piezocone Johan, Albert; Rahardjo, Paulus Pramono; Widjaja, Budijanto
Jurnal Teknik Sipil Vol 31 No 3 (2024): Jurnal Teknik Sipil - Edisi Desember
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.3.7

Abstract

Abstract Liquefaction is phenomenon of the loss of shear strength of saturated sandy soil. Liquefaction has become one of the primary concerns for Indonesia and the world, especially after the occurrence of liquefaction in Palu due to Palu-Donggala earthquake. Learning from the liquefaction phenomena after the Palu-Donggala earthquake event on 28 September 2018, many researchers have conducted liquefaction and flow slide study. In order to complete the study of the liquefaction phenomenon, an experimental study using shake table, chamber, and piezocone is conducted to evaluate the behaviour and viscosity of liquefied silty sand material. Based on the observation during liquefied condition, the silty sand material will experience an increase in excess pore pressure and a decrease in tip resistance. In addition, it is also known that sleeve resistance, speed of penetration of the piezocone, and zone of influence due to piezocone penetration are the main keys in determining the viscosity of the silty sand material during liquefied condition Keywords: Liquefaction, viscosity, silty sand, piezocone
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 Bentonite’s Flow Limit Using Cylinder Strength Test and Suspension Settling Model Setiadjie, Samuel Jemmy; Widjaja, Budijanto; Putra, Mayolus Musa; Anandito, Atharayhan
Indonesian Geotechnical Journal Vol. 4 No. 3 (2025): Vol. 4, No. 3, December 2025
Publisher : Himpunan Ahli Teknik Tanah Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56144/igj.v4i3.131

Abstract

Cohesive soils exhibit complex behavior characterized by distinct transitional boundaries between different states. One of the boundaries is the flow limit (FL), which is the transition between the viscous liquid and suspension states. Currently, there are no specific standard tests to determine the flow limit. Most previous studies have used the undrained shear strength (cu) value to determine the FL value. This study employed two different approaches to obtain the FL value: first, using the cylinder strength test (CST), which approaches from the viscous state, and second, using the suspension settling model, which approaches from the suspension state. There are five variations of samples for each test: 100% bentonite, 90% bentonite and 10% sand, 80% bentonite and 20% sand, 70% bentonite and 30% sand, and 60% bentonite and 40% sand. The cylinder test was conducted with three different cylinder diameters: 30 mm, 40 mm, and 50 mm. For the suspension settling model, five solid concentrations were used, namely 0.5%, 0.4%, 0.3%, 0.2%, and 0.1%, for each sample. The results show that the CST for bentonite suspension gave higher results than the other; meanwhile, the suspension settling model is the most conservative. The FL value from the CST test ranges from 3.33 to 4.9 times higher than the liquid limit (LL); the suspension settling model yielded values of 1.9 to 2.6 times higher than LL. The results are higher than those in previous studies, which can be attributed to differences in apparatus capacities used to determine the cu value, variations in bentonite mineral compositions, and different estimation approaches. Although in this research the range of FL values is still vast, this study has provided insights from two different approaches. This research still has various development opportunities, such as mineralogy effect and new method development to divine the FL value.
The Impact of the Breakdown of the Sidoarjo Mud Dam on the Northeast Side Using the HEC-RAS Program Abdurahman Hafizudin; Budijanto Widjaja
International Journal of Engineering Continuity Vol. 5 No. 1 (2026): IJEC
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijec.v5i1.458

Abstract

The eruption of the Sidoarjo mud, commonly known as the Lapindo mudflow, has continuously dumped slurry since 2006, necessitating the construction of an emergency containment embankment with limited engineering control and a high risk of structural failure. One of the critical locations is the northeast embankment segment (P.75), which is located near the residential zone of South Kalitengah, Gempolsari Village. This study aims to predict the flow direction and the level of impact of mud inundation if there is a breakdown of the embankment. Five dam breakdown simulation scenarios were performed using HEC-RAS by varying the Liquid Limit Index (LI), with the material behavior modeled as a non-Newton Bingham flow characterized by viscosity and yield stress parameters, supported by DEM based topography, Manning coefficients derived from land cover, and inflow hydrographs. The results showed that higher LI values led to slower settling times, longer and wider flow paths, shallower flow depths, and much larger inundation areas, extending to the residential sector. The simulated transport and deposition metrics were aligned with previously documented mudflow events, although the flat local topography led to slower accumulation. This study contributes an empirical LI-based rheological-hydrodynamic relationship to predictive hazard modeling and provides important insights for regional risk mitigation, emergency evacuation planning, and embankment strengthening strategies in mud volcanic disaster zones. In addition, a scenario-based sensitivity and uncertainty analysis was performed to assess the influence of rheological variations, surface roughness, and hydrographic parameters on inundation area and maximum depth, so that the interpretation of the results can be placed in the context of input limitations and numerical assumptions.
Studi Kasus Aliran Lumpur di Desa Pasir Panjang Menggunakan Program FLO-2D Budijanto Widjaja; Dzaky Mahesa Wibowo
Jurnal Manajemen Aset Infrastruktur & Fasilitas Vol 3 (2019): Edisi Khusus 2: Jurnal Manajemen Aset Infrastruktur & Fasilitas
Publisher : Departemen Teknik Sipil ITS

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

Abstract

Indonesia merupakan negara rawan bencana tanah longsor. Aliran lumpur (mudflow) merupakan salah satu jenis gerakan tanah yang dapat terjadi secara alamiah dan merupakan bencana alam geologi yang sering terjadi, salah satunya adalah pada bencana tanah longsor di Desa Pasir Panjang, Salem, Brebes. Mudflow merupakan salah satu tipe pergerakan tanah dalam kondisi jenuh air dengan dominan perilaku ditentukan oleh tanah butir halus. Tujuan dari penelitian ini adalah untuk memperoleh parameter tanah dari material longsoran di Desa Pasir Panjang, memperoleh parameter reologi berupa yield stress dan viskositas, dan mengetahui perilaku pergerakan tanah dengan menggunakan program FLO-2D. Untuk mencapai tujuan tersebut, dilakukan uji kadar air, uji berat jenis, uji Atterberg, uji hidrometer, uji saringan basah, uji fall cone penetrometer dan uji flow box. Sampel tanah yang digunakan terdiri dari 2 sampel, sampel 1 merupakan sumber area sedangkan sampel 2 merupakan deposisi area. Parameter tanah dan parameter reologi yang telah didapat digunakan pada program FLO-2D dengan 4 variasi liquidity index (LI) pada tiap sampel, yaitu 0.9, 1, 1.1, dan 1.2. Dari hasil analisis, dapat disimpulkan bahwa semakin besar LI pada suatu sampel tanah, nilai viskositas dan nilai yield stress akan semakin kecil. Hasil simulasi numerik menunjukkan bahwa aliran lumpur ini dapat terjadi pada saat kadar air mencapai nilai batas cairnya.
STUDI ANGLE OF REPOSE MUD VOLCANO DI DESA NAPAN PULAU TIMOR Mauritius I. R. Naikofi; Budijanto Widjaja; Paulus P. Rahardjo
Jurnal Deformasi Vol. 4 No. 2 (2019): JURNAL DEFORMASI
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/deformasi.v4i2.3557

Abstract

ABSTRAKSemburan lumpur vulkanik (Mud Volcano) di pulau Timor (Desa Napan) merupakan aliran lumpur bertemperatur rendah membentuk gunung-gunung lumpur yang berhenti pada ketinggian tertentu dan tumbuhlagi pada titik yang lain. Aliran lumpur alamiah ini membawa massa material berupa tanah dan material berbutir yang terus menerus tanpa harus dipengaruhi oleh adanya aktivitas gunung berapi atau kondisi curah hujan yang tinggi. Letak semburan mud volcano yang sangat dekat dengan permukiman penduduk, memungkinkan terjadinya peristiwa bencana yang akan mengacam bangunan dan kehidupan penduduk dan berdampak juga pada area pertanian. Penelitian ini dilakukan untuk melengkapi penelitian terdahulu oleh Naikofi, dkk. (2017) mengenai sifat aliran lumpur (Mudflow) mud volcano desa Napan. Hasil penelitian angle of repose yang dibentuk oleh gunung lumpur vulkanik tersebut menunjukkan bahwa pada saat variasi kadar airmendekati atau sama dengan batas cair, yaitu pada kadar air sama dengan 27.55% diperoleh angle of repose sebesar 28.710. Penelitian ini dilakukan untuk melengkapi data terpublikasi terdahulu oleh Naikofi, dkk. (2017) mengenai sifat aliran lumpur (Mudflow) mud volcano desa Napan. Informasi ini diharapkan hasilnya mendekatistudi lumpur vulkanik yang dilakukan oleh peneliti-peneliti terdahulu.Kata Kunci : Lumpur vulkanik, gunung lumpur, angle of repose
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  
Co-Authors Abdurahman Hafizudin Adinda Raditya Putri Agusman, Agusman Albert Johan Aldrianita, Tabitha Anandito, Atharayhan Anastasia Sri Lestari Andra Ardiana Aswin Lim Bobby Minola Ginting Boby Limowa Daniel Sutanto David Wibisono Setiabudi Dzaky Mahesa Wibowo Enry Kam Fadhil, Imam Ahmad Felix Hidayat Hartieni, Patricia Helmy Hermawan Tjahjanto Henky Muljana Herni Setiawan I. R. Naikofi, Mauritius Ian Hartono Ignatius A Bagus WP Ignatius Tommy Pratama Imam Ahmad Fadhil Ivan Octora Januar Yeremy Johan, Albert Johannes Adhijoso Tjondro Mauritius Ildo Rivendi Naikofi Nessiana Novita Obaja Triputera Wijaya Pascayulinda, Devina Paulus P Raharjo Paulus P. Rahardjo Paulus P. Rahardjo Paulus P. Rahardjo Paulus Pramono Paulus Pramono Rahardjo Paulus Pramono Raharjo Priscillia Sundayo Priscillia Sundayo, Priscillia Putra, Heriansyah Putra, Mayolus Musa Setiadjie, Samuel Jemmy Shannon Hsien-Heng Lee Siska Rustiani Soerjadedi Sastraadmatja Sri Ratna Wahyuningsih Stefani Wiguna Susanto, Amalia Sylvia Herina Tan Leonardi Theresita Herni Setiawan Vienti Hapsari Virda Alfionida Virda Alfionida, Virda Wahyuning Aila Wibowo, Dzaky Mahesa Wijaya, Martin William, Octavianus Yohanes Lim Dwi Adianto