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Journal : FROPIL (Forum Profesional Teknik Sipil)

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.
Co-Authors - Evitayani AA Sudharmawan, AA Alfadhlani Alizar Hasan Anugrah, Ibnu Armijal Armijal Azizah, Hanifa Roja Basyirun, Fajri Brama Nalendra Budi Satria Demi Ramadian Demi Ramadian, Demi Dicky Fatrias Fadhilah Fadhilah Feby Gusti Dendra Fendi Fendi Fernanda, Yoki Fitrah, Ridho Aidil Fitri Suryani Foci, Nia Arfina Fuji Astuti Febria H. Prabowo Hadigufri Triha Hadigufri Triha, Hadigufri Hadiguna, Henmaidi Hary Fandeli Haryati, Novy Hasibuan, Sri Fatimah Heri Prabowo Herman Herman Herman Herman, Welly Heru Premana Hilma Raimona Zadry Humaida, Nabila Imansuri, Febriza Indrapriyatna, Ahmad Syafruddin Insannul Kamil, Insannul iswahyuningsih iswahyuningsih Jabang Nurdin James Hellyward Jati Sunaryati Kaisar Karnain, Hiddali Kamil, Insannul M. Ansyar Bora M. Rifaldi Mahdi Mahdi, Mahdi Marta, Ayu Masrilayanti, Masrilayanti Maula Audiana Mego Plamonia, Mego Misliniyati, Rena Muhammad Nizar Nabila Humaida Nilda Tri Putri Nofirza, Nofirza Nofriani Fajrah, Nofriani Nur Wahyuni Nurhadi, Hikari Qurrata’ain Patrisina, Reinny Pri Gustari Akbar, Pri Gustari Purnawan Purnawan Putra, Riza Andesca Qomarotun Nurlaila, Qomarotun Ramadona, Dimas Ilham Reza Nandika Rika Ampuh Hadiguna Rika Hariance Riska Yolanda Risma Erwi Gusvita Rizaldi, Phandu Rossanika, Liza Ruddy Kurniawan Rudi Febriamansyah Safitry, Greschea Jheskhilka Ananda Santoro, Santoro Saptomo, Deddy Sri Setiawati, Sri Sukma, Henra Nanang Syahro A. Akbar TEVINA EDWIN Tri Astuti Yeggi Darnas Yetty Marlida Yonariza Yonariza, Yonariza Yudo Purnomo Yudo Purnomo, Yudo Yuerlita Yulhan Yulhan Yulianto, Ardhian Agung Yulistriani, Yulistriani Zis, Sirajul Fuad