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All Journal Inersia : Jurnal Teknik Sipil dan Arsitektur MEDIA KOMUNIKASI TEKNIK SIPIL Rekayasa Sipil Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Jurnal Fisika FLUX Teras Jurnal Wikrama Parahita : Jurnal Pengabdian Masyarakat JTERA (Jurnal Teknologi Rekayasa) Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Pensil : Pendidikan Teknik Sipil Jurnal Pendidikan Fisika dan Teknologi Journal Innovation of Civil Engineering (JICE) Journal of the Civil Engineering Forum Jurnal Geosaintek
Misliniyati, Rena
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Astronomy Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT 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 Other

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Geospatial Modeling of Soil Plasticity Index and Water Content Distribution in Coastal Bengkulu: A Basis for Resilient Infrastructure Planning Putri, Melly Zuhadjar; Mase, Lindung Zalbuin; Amri, Khairul; Misliniyati, Rena; Hardiansyah, Hardiansyah; Refrizon, Refrizon
Journal Innovation of Civil Engineering (JICE) Vol 6 No 1 (2025)
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jice.v6i1.23561

Abstract

Bengkulu Province, located along the western coast of Sumatra, is one of Indonesia’s most seismically vulnerable regions due to its proximity to major tectonic boundaries. This study aims to enhance earthquake-resilient infrastructure planning by developing a two-dimensional geospatial model of key geotechnical parameters—Plasticity Index (PI) and water content (ѡ) —in the coastal zone. A total of 65 geotechnical observation points served to generate detailed maps by using the Inverse Distance Weighting (IDW) method down to 30 meters depth. The model integrates empirical correlations with statistical and spatial analyses to overcome the challenges of limited data. Results highlight distinct geotechnical variations across different soil layers and administrative regions, revealing zones with high liquefaction potential. The findings provide insight for engineers, urban planners, and disaster risk authorities in designing site-specific construction strategies. This research fills a critical gap in the current literature regarding Inverse Distance Weighting (IDW)-based geospatial modelling in seismically active areas. It offers a replicable framework for other coastal regions with similar geological contexts. Keywords: Plasticity Index; Water Content; Geospatial modeling; Inverse Distance Weighting (IDW)
Analysis of Road Network Vulnerability for Dempo Volcano Eruption Evacuation Aprilia, Gita; Hardiansyah, Hardiansyah; Mase, Lindung Zalbuin; Misliniyati, Rena; Amri, Khairul
Journal Innovation of Civil Engineering (JICE) Vol 6 No 1 (2025)
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jice.v6i1.23580

Abstract

South Sumatra is a province on the island of Sumatra, positioned along the boundary between the Indo-Australian Plate and the Eurasian Plate. The tectonic interaction between these plates has resulted in a mountain range that extends longitudinally from the island’s northern to southern regions, a geological condition that contributes to the area’s susceptibility to natural hazards, one example is the Dempo Volcano. This study uses the four-step model method to analyse the vulnerability of the road network on evacuation routes during the eruption of Dempo Volcano in Pagar Alam City. Eight road sections were observed. A comparison of traffic survey results and numerical modelling was conducted to assess the consistency of the model and also to predict critical conditions. Scenario 1 represents evacuation conditions without any changes to road geometry, while Scenario 2 represents evacuation conditions with modifications in the form of road widening. The analysis showed that most of the population prefers motorcycles as a mode of transport and the fastest route during evacuation, considering the faster evacuation time. Scenario 1 showed a surge in traffic volume, which became an obstacle to evacuation. Scenario 2 can increase capacity and improve traffic flow. The Vulnerability Index indicates that some road sections are vulnerable to evacuation impacts. Keywords: Disaster Evacuation; Four Steps Models; Dempo Volcano Eruption; Road Network Modelling; Vulnerability Index.
COMPARATIVE ANALYSIS OF PLASTERING WORK EXECUTION TIME ON LABOUR PRODUCTIVITY WITH WORK SAMPLING METHOD Susanti, Dwi Dzulma; Supriani, Fepy; Misliniyati, Rena; Mase, Lindung Zalbuin; Hardiansyah
Jurnal Pensil : Pendidikan Teknik Sipil Vol. 14 No. 2 (2025): Jurnal Pensil : Pendidikan Teknik Sipil
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpensil.v14i2.54314

Abstract

Labor productivity is the main parameter in the success of a construction job. This study aims to analyze the level of productivity and the level of Labor Utilization Rate (LUR) in plastering work using the work sampling method, and the most effective time correlation between morning and afternoon. This research was conducted by direct observation for 3 days. The results showed that the highest productivity value was 14.30 m²/hour in the afternoon, and the lowest productivity value was 6.86 m²/hour in the morning. The Labor Utilization Rate (LUR) values in the morning and afternoon were 57.9% and 65.9%, indicating that the afternoon time was more effective than the morning time. However, there was a significant difference in productivity between morning and afternoon time overall, and it can still be categorized as effective with a Labor Utilization Rate (LUR) value of 61.9%, which exceeds 50%.
Characteristics of Cohesive Soil Tanjung Jaya area of Bengkulu City and Its Implementation in Geotechnical Design Junasiq, M. Afra; Misliniyati, Rena; Mase, Lindung Zalbuin; Hardiansyah, Hardiansyah; Supriani, Fepy
Teras Jurnal : Jurnal Teknik Sipil Vol. 15 No. 1 (2025): Volume 15 Nomor 1, Maret 2025
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v15i1.1214

Abstract

Abstrak Pembangunan konstruksi di Indonesia terus meningkat seiring dengan meningkatnya kebutuhan infrastruktur. Kota Bengkulu, ibukota Provinsi Bengkulu, juga mengalami pembangunan infrastruktur yang signifikan dalam beberapa tahun terakhir. Penelitian ini bertujuan untuk mengidentifikasi karakteristik tanah kohesif di kawasan Tanjung Jaya, Kota Bengkulu, dan penerapannya dalam mendesain fondasi dangkal. Tahap awal penelitian ini meliputi pengambilan sampel, kemudian dilanjutkan dengan pengujian sifat-sifat fisis tanah, seperti kadar air, berat volume, berat jenis, analisa ukuran butiran, dan Atterberg Limits. Dari hasil pengujian tersebut, tanah di lokasi tersebut diklasifikasikan sebagai lanau elastis (MH). Pengujian sifat mekanis dilakukan melalui uji kuat tekan bebas dan konsolidasi. Pemodelan fondasi berdasarkan sifat fisis dan mekanis tanah, dilakukan dengan menggunakan aplikasi berbasis metode elemen hingga pada satu titik sampel, dengan menggunakan nilai terendah dari kuat tekan bebas (qu) dan kuat geser (Su) dari dua titik uji pada kedalaman 0,75 m dan 1 m, serta variasi lebar fondasi untuk pendekatan yang lebih konservatif. Faktor keamanan terkecil yang diperoleh adalah 1,440, dan terbesar adalah 4,654, dengan beban vertikal maksimum mencapai 109,30 kN/m² pada kedalaman 1 m dan lebar fondasi 2 m.Kata kunci: Tanah kohesif, sifat fisis, sifat mekanis, metode elemen hingga, fondasi dangkal  Abstract Construction development in Indonesia continues to increase in line with the growing demand for infrastructure. The City of Bengkulu, the capital of Bengkulu Province, has also seen significant infrastructure development in recent years. This study aims to identify the characteristics of cohesive soil in the Tanjung Jaya area, Bengkulu City, and its application in designing shallow footing. The initial phase of the study includes sample collection, followed by tests of the soil's physical properties, such as moisture content, volume weight, specific gravity, grain size analysis, and Atterberg Limits. The results classify the soil in this location as elastic silt (MH). Mechanical properties testing was assessed through unconfined compressive strength and consolidation tests. Foundation modeling, based on the soil's physical and mechanical properties, was conducted using a finite element method-based application at one sample point, utilizing the lowest values of unconfined compressive strength (qu) and shear strength (Su) from the two test points at depths of 0.75 m and 1 m, as well as Foundation width variations, for a more conservative approach. The most minor safety factor obtained was 1.440, and the largest was 4.654, with the maximum vertical load reaching 109.30 kN/m² at a depth of 1 m and a foundation width of 2 m. Keywords: Cohesive soil, physical properties, mechanical properties, element method, shallow footing
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.
ANALISIS PENGARUH PENAMPANG FONDASI TERHADAP DAYA DUKUNG DAN PENURUNAN FONDASI TIANG PANCANG BANGUNAN SCADA Jinan, Raihanah Naura; Misliniyati, Rena; Amri, Khairul; Fikri, Muharram Nur; Supriani, Fepy
Jurnal Pensil : Pendidikan Teknik Sipil Vol. 14 No. 3 (2025): Jurnal Pensil : Pendidikan Teknik Sipil
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpensil.v14i3.59178

Abstract

Bengkulu is an area with the potential risk of the Mentawai Pagai Megathrust subduction earthquake; it is necessary to evaluate the bearing capacity and foundation settlement of the building. This study aims to analyse the influence of variations in dimensions and cross-sectional shapes on the bearing capacity and foundation settlement of the Scada building using the Poulos and Davis method, the Reese and Wright method, the Luciano Decourt method, and the finite element method. Based on the results of the Standard Penetration Test (SPT), the influence of variations in shape, namely square and circular, with dimensions of 300 mm, 400 mm, and 500 mm, as well as depths of 7m, 9m, 11m, and 13m, affects the bearing capacity and foundation settlement. The analysis was conducted by comparing the bearing capacity and settlement of pile foundations in the Scada building using various methods. The analysis results show that the bearing capacity, deflection magnitude, and smallest settlement are below the permitted settlement limit, i.e., less than 10% of the foundation dimensions. The comparison between static and numerical methods, or the Bearing Capacity Ratio (BCR) approaching 1, is more efficient and safer to use. In this analysis, the BCR value closest to 1 was obtained for a 500 mm foundation using the Reese and Wright method at a depth of 9 m, yielding a bearing capacity of 312.04 tonnes for a single pile and 207.69 tonnes for a pile group.
Co-Authors Anggraini, Giovanny Dhebby Aqilah, Hauranda Arif Ismul Hadi Chaiyaput, Salisa Dedi Setiawan Fadli, Darmawan Ikhlas Fahrezi, Zhehan FEPY SUPRIANI Fikri, Muhammad Haikal Fikri, Muharram Nur Gita Aprilia Gusta Gunawan Hanipa, Rerisa Al Hardiansyah Hardiansyah Hardiansyah Ibtisamah, Athiyyah Meisu Ivana, Nurdila Jinan, Raihanah Naura Junasiq, M. Afra Kamal, Thomas Mustafa Khairul Amri Khairul Amri Lindung Zalbuin Mase Lindung Zalbuin Mase, Lindung Zalbuin Muhammad Farid Nirvana, Aura Novtrisa, Indri patrianusa, Iqbal peri, Bes Pranata, Andhika Priani, Anggela Agus Putri, Melly Zuhadjar Refrizon Refrizon Supriani, Fepy Susanti, Dwi Dzulma Trie Saputra, Iqbal Kurnia Valetta, Fitria Leonni ‎Hardiansyah, Hardiansyah