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All Journal Inersia : Jurnal Teknik Sipil dan Arsitektur MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik Rekayasa Sipil Teknisia Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Teras Jurnal Wikrama Parahita : Jurnal Pengabdian Masyarakat JTERA (Jurnal Teknologi Rekayasa) FROPIL (Forum Profesional Teknik Sipil) Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Pendidikan Fisika dan Teknologi Journal Innovation of Civil Engineering (JICE) Journal of the Civil Engineering Forum Journal of Community Service and Society Empowerment Jurnal Geosaintek
Misliniyati, Rena
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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.
The Effect of Cross-Sectional Shape of Pile Foundation on the Bearing Capacity and Settlement for the Kobema Bengkulu SPAM Filter Building Ibtisamah, Athiyyah Meisu; Misliniyati, Rena; Amri, Khairul; Fikri, Muharram Nur; Supriani, Fepy
Rekayasa Sipil Vol. 19 No. 3 (2025): Rekayasa Sipil Vol. 19 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2025.019.03.13

Abstract

This study aims to investigate the impact of dimensional variations on the bearing capacity and settlement of filter buildings in the Benteng Kobema Bengkulu Regional Drinking Water Supply System (SPAM), which has a capacity of 380 L/second and plays a crucial role in providing clean water to the community. Given the potential risk of the Mentawai Pagai Megathrust subduction earthquake, it is necessary to evaluate the bearing capacity and settlement of building foundations. Based on the results of the Standard Penetration Test (SPT), the effect of variations on bearing capacity and settlement can be determined using two types of pile cross-sections, namely square and circular, accompanied by differences in pile cross-section dimensions, namely 300 mm, 400 mm, 500 mm, and depths of 7 m, 9 m, 11 m, and 13 m. The comparison is based on the bearing capacity of the foundation and the settlement of the pile foundation for the filter building of the SPAM Kobema Bengkulu project, using several methods: Poulos and Davis, Reese and Wright, Luciano Decourt, and the Finite Element Method. The smallest settlement is obtained by comparing the total settlement with the allowable settlement, which is 10% of the diameter. The test results show that the bearing capacity, deflection magnitude, and smallest settlement are below the permissible settlement limit, which is less than 10% of the foundation dimensions. The comparison between the static and numerical methods, or the Bearing Capacity Ratio (BCR), is closer to 1, indicating a more efficient and safer approach. In this analysis, a BCR value approaching one was obtained for a square-section foundation with a size of 500 mm, using the Reese and Wright method at a depth of 9 m. This yielded a bearing capacity of 312.04 tons for a single pile and 207.69 tons for a group of piles.
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.
STUDI RESISTENSI TANAH BERDASARKAN VARIASI KEDALAMAN KECEPATAN GELOMBANG GESER (Vs) DI KECAMATAN SELEBAR, KOTA BENGKULU Setiawan, Dedi; Mase, Lindung Zalbuin; Supriani, Fepy; Misliniyati, Rena; Amri, Khairul
Jurnal Geosaintek Vol. 11 No. 2 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v11i2.3075

Abstract

Kecamatan Selebar merupakan salah satu kecamatan di Kota Bengkulu yang memiliki beberapa infrastruktur vital. Kondisi geologi yang beragam dan aktivitas seismik yang masif menjadikan kawasan ini sebagai lokasi penting dalam studi geoteknik. Penelitian ini bertujuan untuk mengeksplorasi hubungan antara kecepatan gelombang geser (Vs) terhadap resistensi tanah di Kecamatan Selebar berdasarkan parameter kecepatan gelombang geser rata-rata (Vs) pada kedalaman 10 hingga 50 m (Vs10, Vs20, Vs30, Vs40, dan Vs50), kelas situs dan Ground Amplification Factor (GAF). Penelitian ini menggunakan data sekunder dari perekaman mikrotremor sebanyak 40 titik yang kemudian dianalisis dan divisualisasikan dalam bentuk peta sebaran dua dimensi berbasis Geographic Information System (GIS). Interpolasi spasial dilakukan menggunakan metode Ordinary Kriging dengan Spherical Semivariogram Model dan Inverse Distance Weighting (IDW) untuk memperoleh distribusi sebaran yang lebih akurat. Hasil penelitian menunjukkan bahwa nilai Vs10, Vs20, Vs30, Vs40, dan Vs50 di Kecamatan Selebar berkisar antara 100 hingga 1.100 m/s, dengan peningkatan kekakuan tanah seiring bertambahnya kedalaman. Kecamatan Selebar didominasi oleh kelas situs C, dengan beberapa zona B dan D, serta GAF antara 0.9 hingga 1,7. Penelitian ini diharapkan dapat memberikan gambaran mengenai respons tanah dan dapat menjadi referensi dalam upaya mitigasi serta pertimbangan dalam perencanaan pembangunan infrastruktur tahan gempa di Kecamatan Selebar, Kota Bengkulu.
From Farmers to World: Local Coffee Go to Global Stage Usman, Berto; Misliniyati, Rena; Fiona, Febzi; Aprisella, Rhienta
Journal of Community Service and Society Empowerment Том 3 № 03 (2025): Journal of Community Service and Society Empowerment
Publisher : PT. Riset Press International

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59653/jcsse.v3i03.1984

Abstract

This Community Service Program conducted in Talang Babatan Village, Kepahiang District, Bengkulu, aims to empower the local community through the enhancement of human resources in coffee production. The project focuses on developing Talang Babatan as a competitive and sustainable coffee-producing village. Despite its potential, the community faces challenges including limited knowledge of modern coffee processing, weak production management, and inadequate access to broader markets. Activities conducted include field visits, community discussions, problem identification, and training sessions focused on improving the knowledge and skills of coffee farmers in post-harvest processing, diversification, and product branding. Preliminary outcomes indicate improved awareness and readiness among local farmers and women’s groups to adopt innovative methods in coffee processing and marketing. Through these initiatives, the program contributes to enhancing the village’s economic resilience and positioning local coffee on the global stage.
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.
MODEL SPASIAL POTENSI KERENTANAN TANAH KAWASAN PESISIR KOTA BENGKULU TERHADAP BAHAYA LIKUIFAKSI Misliniyati, Rena; Amrina, Elita
FROPIL (Forum Profesional Teknik Sipil) Vol 11 No 1 (2023): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/fropil.v11i1.3837

Abstract

This study evaluates the susceptibility of soil liquefaction in the coastal area of Bengkulu City. The evaluation was carried out using a probability approach that includes the contribution of all seismic hazard levels that potentially trigger liquefaction, interpreted by the magnitude and maximum acceleration parameters. The soil strength parameters were collected from 26 CPT points spread along the coastal area of Bengkulu City. This evaluation implements the results of the Probabilistic Seismic Hazard Analysis (PSHA) for Bengkulu City, whereas the dominant earthquake source comes from the subduction zone of Sumatra Island. The factor of safety and the probability for each return period of liquefaction. The results of the evaluation in the form of a safety factor and probability in each return period of liquefaction are presented by a spatial model. The results show that in the return period of 475 years, the soil layer to a depth of 1 m is unsafe against liquefaction (the safety factor is less than 1) with a probability value of almost 100%. This indicates that the soil condition of the coastal area of Bengkulu City is very vulnerable to liquefaction during an earthquake. Therefore, planning the structure of houses and roads with a foundation depth of more than 1 m should be recommended to reduce potential damage due to liquefaction.
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 Amrina, Elita Anggraini, Giovanny Dhebby Aprisella, Rhienta Aqilah, Hauranda Berto Usman, Berto Chaiyaput, Salisa Dedi Setiawan Dhanty Kirana, Virgie Ega Yulita Sari, Ega Yulita Fahrezi, Zhehan Fikri, Muhammad Haikal Fikri, Muharram Nur Fiona, Febzi Gita Aprilia Gusta Gunawan Hanipa, Rerisa Al Hardiansyah Hardiansyah Hardiansyah Ibrahim, Zaky Majid Ibtisamah, Athiyyah Meisu Ivana, Nurdila Junasiq, M. Afra Kamal, Thomas Mustafa Khairul Amri Lindung Zalbuin Mase, Lindung Zalbuin Nirvana, Aura patrianusa, Iqbal peri, Bes Pranata, Andhika Priani, Anggela Agus Purwaningsih, Annisa Indah Putri, Melly Zuhadjar Refrizon Refrizon Supriani, Fepy Trie Saputra, Iqbal Kurnia Valetta, Fitria Leonni ‎Hardiansyah, Hardiansyah