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All Journal Inersia : Jurnal Teknik Sipil dan Arsitektur MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik IJOG : Indonesian Journal on Geoscience Journal of Engineering and Technological Sciences Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Teknisia Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Jurnal Teknik Sipil Teras Jurnal Potensi : Jurnal Sipil Politeknik Wikrama Parahita : Jurnal Pengabdian Masyarakat JTERA (Jurnal Teknologi Rekayasa) SIKLUS: Jurnal Teknik Sipil Jurnal Pendidikan Fisika dan Teknologi TAPAK (Teknologi Aplikasi Konstruksi) : Jurnal Program Studi Teknik Sipil RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi Inersia : Jurnal Teknik Sipil Indonesian Journal on Geoscience Indonesian Journal on Geoscience Journal Innovation of Civil Engineering (JICE) Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Journal of the Civil Engineering Forum Makara Journal of Technology Jurnal Ilmu dan Inovasi Fisika Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Jurnal Geosaintek RADIAL: Jurnal Peradaban Sains, Rekayasa dan Teknologi
Lindung Zalbuin Mase, Lindung Zalbuin
Department Of Civil Engineering, University Of Bengkulu, Bengkulu,
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering 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 Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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Evaluation of Liquefaction Hazard in the West Coastal Area of Bengkulu City Due to Megathrust Earthquake Valetta, Fitria Leonni; Mase, Lindung Zalbuin; Amri, Khairul; Misliniyati, Rena; Hardiansyah, Hardiansyah
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 11 No 1a (2025): Special Issue
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v11i1a.9070

Abstract

This study analyzes the liquefaction potential in the coastal area of Bengkulu due to the large subduction earthquake in 2007. The study was conducted systematically, beginning with field investigations with shear wave velocity measurements. Spectral matching and ground motion prediction based on relative attenuation models were conducted to obtain a representative picture of ground motion at the study site. Subsequently, soil response analysis was used to evaluate the behaviour of the soil under seismic loading. A non-linear finite element approach was applied to assess the dynamic characteristics of the soil, including excess pore water pressure, shear stress-strain response, and stress path. In addition, an empirical evaluation was conducted to determine the liquefaction potential. The results show that liquefaction has the potential to occur at shallow depths, especially in the first and second layers of the sand layer. The results of numerical and empirical analyses show consistent patterns and agreement. The comparison between the excess pore pressure ratio and the safety factor aligns with the findings from previous studies. These findings emphasise the importance of implementing seismic hazard mitigation measures in the study area.
Identifikasi Potensi Bahaya Gelombang Seismik Berdasarkan Parameter Dinamis Tanah di Kecamatan Selebar Nirvana, Aura; Mase, Lindung Zalbuin; Amri, Khairul; Misliniyati, Rena; Hardiansyah, Hardiansyah
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 11, No 2 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/gravity.v11i2.33471

Abstract

The Selebar District in Bengkulu City has a high level of earthquake vulnerability due to its location near the Indo-Australian and Eurasian plate subduction zone. This study began with a microtremor survey and earthquake modelling to analyse the seismic response of the soil. Modelling was conducted using the non-linear dynamic Pressure Dependent Hyperbolic (PDH) approach. This method models soil behaviour by considering changes in stiffness and damping due to variations in pressure and strain during an earthquake, thereby providing a more realistic representation of field conditions. The response analysis was conducted in one dimension and produced soil acceleration parameters, with Peak Ground Acceleration (PGA) values ranging from 0.47g to 0.75g. These results indicate a high earthquake potential in the study area. The acceleration spectrum of the input waves increased gradually until it reached its peak at a period of 0.2 seconds, covering the classification range of buildings from low to high. These findings provide essential input for earthquake-resistant infrastructure planning and the formulation of risk mitigation strategies in earthquake-prone areas, such as the Selebar District in Bengkulu City.
ANALISIS EVAKUASI BENCANA TSUNAMI DENGAN METODE AGENT BASED MODELING STUDI KASUS GEDUNG PUSAT KEGIATAN MAHASISWA UNIVERSITAS BENGKULU Saputra, Ramadhani Niko; Hardiansyah, Hardiansyah; Mase, Lindung Zalbuin
Inersia: Jurnal Teknik Sipil Vol. 11 No. 2 (2019)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.699 KB) | DOI: 10.33369/ijts.11.2.41-51

Abstract

This study is designed to model the tendency of Gedung PKM users, Universitas Bengkulu using Agent Based Modelling Method. The vehicle survey is performed to obtain the peak-time period of parked vehicles in Gedung PKM. The questionnaire collecting is performed to obtain the information, which are later used to volume capacity ratio, volume, and road capacity. In this study, several road segments and alternative routes are observed during the evacuation. To inspect the suitability between the modelling and the observation, the simple linear regression analysis is performed. The results show that the most selected route is the shortest route with the best accessibility to reach the gateway, during the evacuation. The road saturation degree shows that there is a need to improve the local road performance in Universitas Bengkulu to ensure a faster evacuation process during tsunami.
Bacteria Pseudomonas taiwanensis as a decomposing agent of peat fiber Gulo, Elrich Gratiawan WD; Amalia , Dewi; Mase, Lindung Zalbuin; Yulianto, Faisal Estu; Kusuma, Yusmiati; Juarti, Ery Radya; Suyono, Agus
Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Vol. 8 No. 02 (2023): Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Publisher : Biology Education Department, Universitas Insan Budi Utomo, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/ebio.v8i02.1046

Abstract

Efforts are needed to accelerate the decomposition of peat fiber to reduce the fiber content through bioaugmentation using Pseudomonas taiwanensis bacteria so that it can reduce the high-water content of peat fiber. The research aimed to determine the effect of adding Pseudomonas taiwanensis bacteria on the decomposition of peat fiber. This research is a laboratory experimental research. The research sampling location was in Bereng Bengkel Village, Palangkaraya. The parameters observed included fiber content, fiber size distribution, and peat fiber decomposition speed following the Peat Testing Manual. The research instrument was an observation sheet for fiber content, size distribution, and peat fiber decomposition speed. Research data was analyzed using descriptive statistical analysis. The results showed that adding 15% Pseudomonas taiwanensis bacteria with a curing period of 28 days in fibrous peat resulted in the highest reduction in fiber content, from the initial condition of 61.14% to 12.33%. This variation also shows a decrease in coarse and medium fiber content and a significant increase in fine fiber content. The decomposition rate for this variation shows good consistency. The conclusion was that adding 15% Pseudomonas taiwanensis bacteria with a curing period of 28 days showed optimal results in accelerating the decomposition of peat fiber through the bioaugmentation method.
IMPLEMENTASI METODE LINIER EKUIVALEN DAN NONLINIER DALAM MEMPREDIKSI RESPONS SEISMIK AREA KAMPUNG MELAYU, KOTA BENGKULU Sari, Ega Yulita; Mase, Lindung Zalbuin; Hardiansyah, Hardiansyah; Misliniyati, Rena; Amri, Khairul
Jurnal Geosaintek Vol. 10 No. 2 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v10i2.1723

Abstract

Kota Bengkulu terletak pada pertemuan antara Lempeng Eurasia dan Lempeng Indo-Australia yang menjadi pertimbangan adanya gempa besar yang mungkin terjadi. Penelitian ini berlokasi di Kecamatan Kampung Melayu. Titik penelitian didominasi oleh tanah pasir dengan klasifikasi tanah keras (SC) dan tanah sedang (SD). Penelitian ini bertujuan untuk menganalisis respon seismik pada daerah yang dianggap berpotensi terganggu menggunakan perbandingan linier ekuivalen dan nonlinier. Analisis respon seismik dilakukan menggunakan metode Pressure Dependent Hyperbolic (PDH) yang menghasilkan parameter tanah berupa Peak Ground Acceleration (PGA), percepatan respon spektra periode panjang 1 detik dan periode pendek 0,2 detik, dan faktor amplifikasi. Penggunaan metode ini memberikan hasil sesuai dengan perilaku tanah. Hasil yang didapat dari penelitian ini menunjukkan linier ekuivalen memiliki nilai yang lebih tinggi jika dibandingkan nilai nonlinier. Permodelan linier ekuivalen menunjukkan terjadi overestimasi yang mempengaruhi nilai percepatan maksimum lebih tinggi dari model nonlinier. Oleh karena itu permodelan nonlinier lebih relevan digunakan dan menggambarkan kondisi lapangan.
PENGARUH NANO-MATERIAL DAN BIOPOLIMER TERHADAP KARAKTERISTIK TANAH LUNAK UNTUK DESAIN PERKERASAN JALAN Sanniyah, Salwa Siti; Sihombing, Atmy Verani R.; Mase, Lindung Zalbuin; Susanto, Ambar; Somantri, Andri Krisnandi; Krisologus, Yulianto Petrus
Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Vol. 10 No. 1 (2024)
Publisher : Himpunan Pengembangan Jalan Indonesia (HPJI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/jhpji.v10i1.7648.53-64

Abstract

Abstract The effect of soft soil modification using nano-materials and biopolymers on road pavement design is discussed in this paper. The nano-materials and biopolymers used in this research are nano-lime and nano-silica, with the biopolymer in the form of chitosan from shrimp shells. First, soil mixed with nano-materials with 1-5 matrix variations and 4 variations of biopolymer mixture (0.05%, 0.1%, 0.15%, and 0.2%) were tested in the laboratory to determine the effect of nano-materials and biopolymers on soft soil characteristics, which are expressed by the Atterberg Limit and California Bearing Ratio. Next, the data obtained was used to design road pavement. This study shows that the addition of nano-materials and biopolymers improves soil characteristics, both at the Atterberg Limit and the California Bearing Ratio of the soil. This soil improvement can reduce the thickness of the road pavement by 18.18%. Keywords: soft soil; nano-materials; biopolymers; road pavement; road Abstrak Pengaruh modifikasi tanah lunak menggunakan nano-material dan biopolimer terhadap desain perkerasan jalan dibahas pada tulisan ini. Nano-material dan biopolimer yang digunakan pada penilitian ini adalah nano-kapur dan nano-silika, dengan biopolimer berupa chitosan dari kulit udang. Pertama, tanah campuran nano-material dengan variasi matriks 1-5 dan 4 variasi campuran biopolimer (0,05%, 0,1%, 0,15%, dan 0,2%) diuji di labora-torium untuk mengetahui pengaruh nano-material dan biopolimer terhadap karakteristik tanah lunak, yang dinya-takan dengan Atterberg Limit dan California Bearing Ratio. Selanjutnya, data yang diperoleh digunakan untuk merancang perkerasan jalan. Penelitian ini menunjukkan bahwa penambahan nano-material dan biopolimer memperbaiki karakteristik tanah, baik pada Atterberg Limit maupun pada California Bearing Ratio tanah tersebut. Perbaikan tanah ini dapat mengurangi tebal perkerasan jalan sebesar 18,18%. Kata-kata kunci: tanah lunak; nano-material; biopolimer; perkerasan jalan; jalan
ANALISIS DAN PERENCANAAN ULANG SALURAN DRAINASE DI KELURAHAN BUMI AYU KOTA BENGKULU (STUDI KASUS PERUMAHAN BUMI AYU RESIDENCE) Elvandani, Yogi; Amri, Khairul; Mase, Lindung Zalbuin
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 9 No. 2 (2021): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (498.905 KB) | DOI: 10.37971/radial.v9i2.235

Abstract

Abstrak: ANALISIS DAN PERENCANAAN ULANG SALURAN DRAINASE DI KELURAHAN BUMI AYU KOTA BENGKULU (STUDI KASUS PERUMAHAN BUMI AYU RESIDENCE) Penelitian ini bertujuan menganalisis dan mengevaluasi saluran drainase, banjir dan genangan air serta mendesain ulang saluran drainase di Perumahan Bumi Ayu Residence. Metode yang digunakan untuk membuat sistem jaringan drainase dengan permodelan EPA SWMM 5.1, dimana parameter sistem jaringan drainase dimasukan ke dalam model yang terdiri dari subcatchment, nodes junction, conduit, dan outfall nodes. Semua parameter nilai didapat dari pengukuran lapangan dan pengolahan curah hujan rencana. Hasil running simulasi EPA SWMM 5.1 dengan menggunakan curah hujan rencana periode 2 tahun sebesar 139,133 m3/detik, curah hujan rencana periode 5 tahun sebesar 189,117 m3/detik menunjukan saluran sekunder C14 dan C16 mengalami luapan banjir, curah hujan rencana periode 10 tahun sebesar 222,206 m3/detik menunjukan saluran sekunder C10, C14 dan C16 mengalami luapan banjir , dan curah hujan rencana periode 25 tahun sebesar 264,028 m3 / detik menunjukkan saluran sekunder C2, C4, C6, C8, C10, C12, C14, C16 dan C18, sedangkan pada saluran tersier C28 yang mengalami luapan banjir. Kata kunci:EPA SWMM 5.1; kapasitas saluran; limpasan; sistem saluran drainase; subcatchment Abstract: ANALYSYS AND REPLAN THE DRAINAGE CHANNELIN BUMI AYU BENGKULU CITY(A CASE STUDY OF BUMI AYU RESIDENCE HOUSING) This study aims to analyze and calculate the dimensions of drainage, flooding and air inundation as well as redesigning channels. The method of drainage network system EPA SWMM 5.1 is carried out into a model consisting of subcatchment, intersection nodes, channels, and outfall nodes. All parameter values obtained from measurements and measurements of rainfall plans. The results of running the EPA SWMM 5.1 simulation using the 2-year planned rainfall of 139.133 m3/second, the 5-year planned rainfall of 189.117 m3/second shows that the secondary channels C14 and C16 are experiencing flooding, the planned rainfall for the 10-year period is 222.206 m3/second shows that the secondary channels C10, C14 and C16 experience flooding, and the planned rainfall for a 25-year period of 264.028 m3/second indicates the secondary channels C2, C4, C6, C8, C10, C12, C14, C16 and C18, while on the C28 tertiary channel which experienced flooding Keywords:EPA SWMM 5.1; channel capacity; runoff; drainage system; subcatchment
Microzonation of soil resistance using shear wave velocity (Vs) for earthquake disaster mitigation in Singaran Pati District, Bengkulu City Dhanty Kirana, Virgie; Mase, Lindung Zalbuin; Supriani, Fepy; Misliniyati, Rena; Amri, Khairul
Teknisia Vol 30 No 2 (2025): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol30.iss2.art2

Abstract

Singaran Pati District, Bengkulu City, is located in an active subduction zone, making it prone to seismic activity. However, to date, there is no detailed microzonation map available to assess local vulnerability to earthquake shocks. This study aims to produce a microzonation map based on shear wave velocity (Vs) and Ground Amplification Factor (GAF) parameters as indicators of soil resistance. Vs values are calculated sequentially at depths of Vs10, Vs20, Vs30, Vs40, and Vs50 using spectral inversion methods. Soil site classification is based on NEHRP standards. Spatial interpolation uses the Inverse Distance Weighting (IDW) method to map parameter distribution. Results show that Vs velocity increases with depth, with a dominance of Class D sites (moderate soil), followed by Class C (very dense soil and soft rock), and a small portion of Class B (moderate rock). The GAF map identifies points with the highest amplification that are at high risk of damage due to earthquakes. The maximum Ground Amplification Factor (GAF) value is shown in red on the map, with a value of 2.0, while the minimum value is shown in green, representing a value of 1.0. This condition indicates that some areas in Singaran Pati Subdistrict have a significant potential for earthquake impact. Therefore, the use of microzonation maps is crucial as a basis for structural building planning and seismic risk mitigation in the Singaran Pati area.
Evaluation of Hospital Building Resilience to Earthquakes Using Soil Response and Finite Structure Dynamics Structure Analysis Ibrahim, Zaky Majid; Mase, Lindung Zalbuin; Supriani, Fepy; Misliniyati, Rena; Amri, Khairul
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 11 No 2 (2025): July - December
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v11i2.10290

Abstract

The city of Bengkulu is the capital of Bengkulu Province, which is the main center for government, health, and education activities. As the capital city, infrastructure development is important due to its proximity to the subduction zone. This study analyzes how the Tino Galo hospital building responds to seismic performance. The study began with a comprehensive field survey to collect geological information at the study site. Referring to various earthquake events at the study site, it is known that earthquakes triggered by subduction are the dominant type of earthquake that occurs. The seismic response of the soil was then evaluated to identify soil movement characteristics, including important parameters such as peak ground acceleration (PGA), spectral response acceleration, and amplification factor. The next step was to simulate earthquake wave propagation using three-dimensional modeling with the Finite Element Method (FEM) to assess the structural response of the building to earthquake shocks. The analysis results show that after evaluation using time history data from both earthquake waves, the building structure elements are in a safe condition. These findings imply that the current structural design can effectively withstand and distribute earthquake loads, so that no dimensional changes or additional reinforcement are required for the Hospital Building. This study recommends the continued application of a combined soil response and structural dynamics analysis method for buildings in earthquake-prone zones, as well as the need to utilise a broader range of earthquake data to improve the accuracy of seismic performance evaluations and support the development of future risk mitigation strategies.
Analisis Ketahanan Tanah berdasarkan Kecepatan Gelombang Geser (VS) di Kawasan Aliran Sungai Muara Bangkahulu Bagian Hilir, Kota Bengkulu Purwaningsih, Annisa Indah; Mase, Lindung Zalbuin; Hardiansyah; Misliniyati, Rena; Supriani, Fepy
Jurnal Teknik Vol 23 No 2 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i2.600

Abstract

The downstream area of the Muara Bangkahulu River is a developing area in Bengkulu City that was affected by major earthquakes in 2000 and 2007. The risk of earthquake-induced damage in this area requires further investigation, particularly regarding soil resistance to seismic shaking. This study aims to analyze soil characteristics based on shear wave velocity (VS), site classification, and Ground Amplification Factor (GAF) to support earthquake-resistant infrastructure planning. This study uses microtremor data inversion methods conducted at 38 measurement points. Shear wave velocity (VS) data at depths of 10–50 m were analyzed to determine site classes and Ground Amplification Factor (GAF). Data processing was performed using surface wave inversion techniques to map VS distribution and seismic amplification. The results of the study show that VS values at depths of 10–50 m vary between 160–960 m/s, with site class classifications dominated by categories C (hard soil) and D (medium soil). The Ground Amplification Factor (GAF) values ranged from 1.1–1.9, with areas of high amplification indicating greater vulnerability to earthquake shocks. These findings serve as an important reference for disaster mitigation planning and earthquake-resistant infrastructure development in the region. Technical recommendations are needed for locations with high amplification to minimize the risk of earthquake damage in the future.
Co-Authors AGUS SUYONO Ahmad, Debby Ariansyah Amalia , Dewi Ambar Susanto, Ambar Andika Sahadewa Andri Krisnandi Somantri Andri Krisnandi Somantri, Andri Krisnandi Anggraini, Giovanny Dhebby Annisa Zahara Azzahra, Raisya Chaiyaput, Salisa Dewi Amalia Dhanty Kirana, Virgie Ega Yulita Sari, Ega Yulita Elvandani, Yogi Endarina, Nurul Dwi Ery Radya Juarti, Ery Radya Faisal Estu Yulianto, Faisal Estu FEPY SUPRIANI Fikri, Muhammad Haikal Gita Aprilia Gulo, Elrich Gratiawan WD Gusta Gunawan Hanipa, Rerisa Al Hardiansyah Hardiansyah Hardiansyah Hendriawan Hendriawan Hendriawan, Hendriawan Ibrahim, Zaky Majid Ivana, Nurdila Junasiq, M. Afra Kamal, Thomas Mustafa Khairul Amri Khairul Amri Krisologus, Yulianto Petrus Kusuma, Yusmiati Likitlersuang, Suched Lubis, Aminah Rahmadhani Masyhur Irsyam Misliniyati , Rena Misliniyati, Rena Misliniyati, Rena Muhammad Farid Nirvana, Aura Nurfikri, Muharram Pranata, Andhika Purwaningsih, Annisa Indah Putri, Melly Zuhadjar Qotrunnada, Mutia Refrizon Refrizon Rena Misliniyati Rena Misliniyati Rifqi, Fianco Fakhri Sahadewa, Andika Sanniyah, Salwa Siti Saputra, Ramadhani Niko Sihombing, Atmy Verani R. Suched Likitlersuang Supriani, Fepy Teuku Faisal Fathani Valetta, Fitria Leonni