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All Journal Jurnal Fisika FLUX Potensi : Jurnal Sipil Politeknik Wikrama Parahita : Jurnal Pengabdian Masyarakat JCES (Journal of Character Education Society) Jurnal Pensil : Pendidikan Teknik Sipil Jurnal Teori dan Aplikasi Fisika TAPAK (Teknologi Aplikasi Konstruksi) : Jurnal Program Studi Teknik Sipil Inersia : Jurnal Teknik Sipil Jurnal Pengabdian Masyarakat Asia Engineering, Mathematics and Computer Science Journal (EMACS) Matriks Teknik Sipil Abdi Reksa Jurnal Geosaintek Jurnal Pengabdian Masyarakat Konstruksi Jurnal Teknik Sipil
Lindung Zalbuin Mase
Universitas Bengkulu
Arts Humanities Astronomy 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 Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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ANALISIS PENURUNAN TANAH LUNAK TERHADAP PERKERASAN JALAN KAKU MENGGUNAKAN METODE ELEMEN HINGGA (Studi Kasus: Jalan Srijaya Raya, Kota Palembang) Nurul Fadhilah; Lindung Zalbuin Mase; Hardiansyah Hardiansyah; Rena Misliniyati; Khairul Amri
Matriks Teknik Sipil Vol 13, No 1 (2025): Juni
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mateksi.v13i1.102203

Abstract

Rigid pavement is a commonly used pavement in soft subgrade conditions because it can anticipate soil subsidence in the transverse and longitudinal directions of the roadway as a result of uneven load distribution due to inhomogeneous soil. Road pavement that is passed by excessive loads will cause the road to experience soil subsidence which will also affect the soil layer below so that research on the problem is needed. This research uses the finite element method which aims to determine the vertical settlement of soil (Uy), the maximum settlement of 3650 days, and the safety factor (Msf) that occurs in soft soil layers against rigid pavement on Srijaya Raya road, Palembang City. The soil characteristics on Srijaya Raya Road are dominated by clay soil with low to medium plasticity which is dominantly soft so that it can cause significant road damage if maintenance is not carried out. Based on the research, it was found that the maximum subsidence value of the distributed load was at STA 0 + 806 at point BH-02 located at the Air Waru Bridge towards Indralaya, which was -0.04847 m with a safety factor of 1.650 and the maximum subsidence for 3650 days was at STA 2 + 103 at point BH-04 located at the Air Kenanga Bridge towards Palembang of -0.539 m.Keywords: finite element method; rigid pavement; safety factor; settlement.
ANALISIS RESPON SEISMIK NONLINIER DI KABUPATEN BANTUL AKIBAT GEMPA BANTUL 2023 Nurul Dwi Endarina; Lindung Zalbuin Mase; Muharram Nurfikri; Rena Misliniyati; Hardiansyah Hardiansyah
TAPAK [Teknologi Aplikasi Konstruksi] : Jurnal Program Studi Teknik Sipil Vol 15 No 2 (2026): Mei 2026
Publisher : Prodi Teknik Sipil Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/tp.v15i2.5182

Abstract

Kabupaten Bantul merupakan wilayah dengan tingkat kerentanan gempa yang tinggi akibat aktivitas tektonik zona subduksi di selatan Pulau Jawa, sehingga analisis respon seismik berbasis kondisi tanah lokal menjadi penting untuk mendukung perencanaan struktur tahan gempa. Penelitian ini bertujuan untuk menganalisis respon seismik nonlinier tanah akibat Gempa Bantul 2023 melalui parameter Peak Ground Acceleration (PGA), percepatan respon spektra, dan faktor amplifikasi. Metodologi penelitian menggunakan model atenuasi NGA-Subduction untuk menghasilkan percepatan spektral sebagai target spectral matching, yang selanjutnya digunakan sebagai input motion dalam analisis respon tanah satu dimensi nonlinier menggunakan perangkat lunak DeepSoil Versi 7. Data tanah diperoleh dari hasil Standard Penetration Test (SPT) pada empat titik penelitian, serta klasifikasi kelas situs ditentukan berdasarkan nilai Vs30. Hasil penelitian menunjukkan nilai Vs30 berkisar antara 259–412 m/s dengan dominasi kelas situs D dan satu titik kelas C, nilai PGA permukaan sebesar 0,047–0,063 g, serta faktor amplifikasi antara 0,91–1,25. Respon spektra di permukaan umumnya meningkat pada periode pendek dibandingkan input motion, namun masih berada di bawah spektra desain SNI 1726:2019. Penelitian ini menyimpulkan bahwa kondisi tanah lokal berperan signifikan dalam memodifikasi respon gempa dan berkontribusi dalam pengembangan analisis bahaya seismik berbasis lokasi spesifik
STUDI RESISTENSI TANAH BERDASARKAN VARIASI KEDALAMAN KECEPATAN GELOMBANG GESER (Vs) DI KECAMATAN SELEBAR, KOTA BENGKULU Dedi Setiawan; Lindung Zalbuin Mase; Fepy Supriani; Rena Misliniyati; Khairul Amri
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.
Integrating Finite Element Analysis and Machine Learning to Predict the Bearing Capacity of Strip Footings on Slopes Aditya Dwi Kurniawan; Lindung Zalbuin Mase; Muharram Nur Fikri; Rena Misliniyati; Aidil Fitriansyah
Engineering, MAthematics and Computer Science Journal (EMACS) Vol. 8 No. 2 (2026): EMACS (In Press)
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/emacsjournal.v8i2.16161

Abstract

Predicting the ultimate bearing capacity (qult) of strip footings on slopes remains a major challenge in geotechnical engineering, as classical methods were developed for level ground and lose reliability for complex slope-foundation geometries. Although finite element analysis (FEA) provides better accuracy, its high computational cost limits large-scale parametric studies. This study proposes a hybrid FEA–machine learning (ML) framework to estimate qult of strip footings on slopes, overcoming the accuracy limitations of existing analytical solutions for different slope-foundation configurations. The dataset of 600 finite element simulations was developed under the Mohr-Coulomb plane strain constitutive framework. Six variables were examined: unit weight (γ), cohesion (c), friction angle (φ), applied load (P), foundation width (B), and embedment depth (Df). Seven predictive models were developed: multiple linear regression, polynomial regression, support vector regression, decision trees, random forests, k-nearest neighbors, and extreme gradient boosting (XGBoost). Model performance was assessed using R², RMSE, MAPE, and the a20 index, with R² and RMSE as the primary ranking criteria, while Shapley Additive Explanations (SHAP) were applied to interpret feature contributions. XGBoost has the highest prediction accuracy on both the training and test datasets. It is followed by Support Vector Regression (SVR). The most influencing parameter in all seven models was the foundation depth (Df), followed by the friction angle (φ) and the foundation width (B), while the slope angle consistently decreased the predicted bearing capacity. The results confirm the accuracy, interpretability, and computational efficiency of the integrated FEA-ML approach as an alternative to traditional bearing capacity analysis.
Characteristics of Cohesive Soil Tanjung Jaya area of Bengkulu City and Its Implementation in Geotechnical Design M. Afra Junasiq; Rena Misliniyati; Lindung Zalbuin Mase; Hardiansyah Hardiansyah; Fepy Supriani
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
3D Geospatial Analysis of Soil Unit Weight Using the Radial Basis Function (RBF) and Ordinary Kriging (OK) Methods in Ketahun Sub-district, North Bengkulu Nafisa Auliya; Lindung Zalbuin Mase; Khairul Amri; Rahmat Fahrizal; Rena Misliniyati; Hardiansyah -
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 23, No 2 (2026): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v23i2.25927

Abstract

Ketahun is one of the areas in North Bengkulu Regency, Bengkulu Province, which is affected by seismic activity, with geological conditions dominated by sedimentary from Bintunan Formation, which influence soil characteristics for geotechnical planning. Previous research on three-dimensional (3D) geospatial modeling in Bengkulu region was generally limited to soil technical parameters, while  soil unit weight parameters were rarely used. This study aims to make 3D modeling of subsurface structure and soil unit weight distribution (γsat, γb, and γd) in Ketahun using geospatial approach. The research utilize data from field investigations at 15 Cone Penetration Test (CPT) points, which were then empirically correlated determine soil unit weight values. The 3D modeling was built using Leapfrog Geo application, through the Implicit Geological Modeling approach based on Radial Basis Function (RBF), while the distribution of bulk density parameters was estimated using Ordinary Kriging (OK). The validation results showed an R2 (0,95 - 0,96), RMSE (0,48 – 0,55), and MAE (0,34 – 0,46) proving that this 3D model is able to represent the spatial distribution of soil parameters measurably, with consistence parameter relationships, where γsat > γb > γd. The average values obtained for untuk  γsat is 19,77 kN/m3, γb is 19,67 kN/m3, and γd is 15,82 kN/m3. The results of this study are expected to provide insight into the subsurface and distribution of bulk density to further geotechnical analysis for support the planning of earthquake-resistant building structures.
Co-Authors Aditya Dwi Kurniawan Aidil Fitriansyah Anggi Nidya Sari Annisa Fitria Edriani Arif Ismul Hadi Atik Prihatiningrum Besperi Besperi Darmawan Ikhlas Fadli Dedi Setiawan Fazriati Utami Fepy Supriani Hardiansyah - Hardiansyah Hardiansyah Hendy Santosa Indri Novtrisa JUNAS HAIDI Khairul Amri M. Afra Junasiq Muhammad Farid Muharram Nur Fikri Muharram Nurfikri Nafisa Auliya Nurul Dwi Endarina Panji Anom Ramawangsa Rahmat Fahrizal Refrizon Refrizon Rena Misliniyati Sulastri Febiana Yoka Mahendra