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All Journal Jurnal Teknologi Rekayasa Mesin Jurnal Fisika FLUX FROPIL (Forum Profesional Teknik Sipil) Jurnal Pensil : Pendidikan Teknik Sipil PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Teori dan Aplikasi Fisika Inersia : Jurnal Teknik Sipil Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS
Khairul Amri
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Humanities Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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Mikrozonasi Resistensi Tanah Berdasarkan Variasi Kecepatan Gelombang Geser di Kawasan Pesisir Kota Bengkulu Sulastri Febiana; Lindung Zalbuin Mase; Fepy Supriani; Rena Misliniyati; Khairul Amri
Jurnal Teori dan Aplikasi Fisika Vol. 13 No. 02 (2025): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v13i02.516

Abstract

Kawasan pesisir Kota Bengkulu berada di lokasi strategis, tepatnya di pertemuan lempeng Indo-Australia dan Eurasia, sehingga menjadi daerah dengan risiko tinggi terhadap aktivitas gempa bumi. Penelitian ini bertujuan untuk membuat peta mikrozonasi sebagai representasi visual hasil analisis resistensi tanah berdasarkan nilai kecepatan gelombang geser (Vs). Metodologi yang digunakan meliputi pengumpulan data sekunder berupa data perlapisan tanah dan nilai kecepatan gelombang geser, perhitungan nilai Vs10, Vs20, Vs30, Vs40, dan Vs50, serta klasifikasi jenis tanah. Proses tersebut menghasilkan profil perlapisan tanah dan profil variasi kecepatan gelombang geser, peta sebaran Vs10, Vs20, Vs30, Vs40, Vs50, peta sebaran Kelas Situs tanah, dan peta sebaran Ground Amplification Factor (GAF). Hasil penelitian menunjukkan bahwa wilayah pesisir Kota Bengkulu memiliki resistensi tanah yang relatif sedang dikarenakan dominasi Kelas Situs tanah yaitu C (tanah keras, sangat padat, dan batuan lunak) dan D (tanah sedang). Hasil mikrozonasi resistensi tanah dapat secara konkret diintegrasikan ke dalam perancangan tata ruang melalui penetapan zona rawan gempa yang dijadikan acuan dalam penentuan jenis tata guna lahan, desain bangunan, dan standar teknis konstruksi. Penelitian ini diharapkan dapat menjadi referensi dalam upaya mitigasi bencana serta menjadi dasar perencanaan tata ruang, pengembangan wilayah, dan pembangunan infrastruktur yang lebih aman di kawasan pesisir Kota Bengkulu. Selain itu, diperlukan studi lanjutan untuk menganalisis kondisi bangunan secara lebih mendalam guna mengidentifikasi risiko spesifik terhadap prasarana yang ada, sehingga dapat dirancang strategi penguatan struktur yang tepat. Kata kunci: Mikrozonasi, Resistensi Tanah, Amplifikasi, Kecepatan Gelombang Geser (Vs), Kelas Situs
RESPONS SEISMIK DI KECAMATAN MUARA BANGKAHULU, KOTA BENGKULU MENGGUNAKAN KONSEP PERAMBATAN GELOMBANG Rena Misliniyati; Muhammad Farid; Khairul Amri; Lindung Zalbuin Mase; Fepy Supriani
Jurnal Pensil : Pendidikan Teknik Sipil Vol. 13 No. 3 (2024): Jurnal Pensil : Pendidikan Teknik Sipil
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpensil.v13i3.45746

Abstract

The position of Bengkulu Province, which is flanked by the subduction zone between the Euro-Asian and Indian-Australian plates to the west, and the Sumatra Fault zone to the east, makes Bengkulu City one of the areas prone to earthquake disasters. Muara Bangkahulu District is one of the sub-districts in Bengkulu City. Muara Bangkahulu sub-district is an area that functions as a government centre, trade and service centre, and one of the education centres in Bengkulu City. This study aims to determine the ground response in the Muara Bangkahulu sub-district area during an earthquake. The wave propagation method used in this study is a one-dimensional equivalent of linear and nonlinear modelling that propagates earthquake waves from bedrock to surface. The results of this study are Peak Ground Acceleration (PGA), amplification factor, earthquake acceleration time history, and acceleration spectra response. The results of this analysis will be compared between equivalent linear and nonlinear values. The results of this study can also help us realise and further consider the value of seismic design in the Muara Bangkahulu sub-district area, mainly if a stronger earthquake occurs in the future.
ANALISIS PENGARUH PENAMPANG FONDASI TERHADAP DAYA DUKUNG DAN PENURUNAN FONDASI TIANG PANCANG BANGUNAN SCADA Raihanah Naura Jinan; Rena Misliniyati; Khairul Amri; Muharram Nur Fikri; Fepy Supriani
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 Aditya Afrizal Agus Nuramal Ahadi Somad Syahlan Ahmad Syukron Arif Ismul Hadi Darmawan Ikhlas Fadli Dody Ariawan Faisal Hadi Fepy Supriani Gusta Gunawan Hanan Shalsabillah Hardiansyah Hardiansyah Hendri Hestiawan Hendy Apriyanza Indri Novtrisa IRNANDA PRIYADI Lindung Zalbuin Mase M. Faiz Barchia M. Hafidz Ramadhan Muhammad Farid Muhammad Fauzi Muharram Nur Fikri Raihanah Naura Jinan Refrizon Refrizon Rena Misliniyati Rezky Haredho Akbar Sudibyo Sudibyo Sulastri Febiana Wawan Kurniawan Yanolanda Suzantry Handayani Yuzuar Afrizal