Analisis Potensi Likuifaksi Akibat Gempa (Studi Kasus : Reklamasi Pelabuhan Kontainer Belawan Fase-2)

Authors

  • Mario HUTAGALUNG FT, Universitas Katolik Santo Thomas
  • Simon Dertha TARIGAN FT, Universitas Katolik Santo Thomas

DOI:

https://doi.org/10.54367/jrkms.v2i1.433

Abstract

One of the impacts caused by an earthquake is the strength loss of the soil due to cyclic stresses calledliquefaction. Liquifaction usually occurs in loose sand. The objective of this study is to determine thepotential of liquefaction in observed project. The project observed in this study is reclamation project.Analysis for potential liquefaction is done using the Simplified Procedure Method. Firstly, determinethe value of peak acceleration in bedrock in the study area based on the 2010 Indonesian EarthquakeHazard Map. Secondly, collect soil data based on CPT-u testing. Based on these data, the accelerationvalue (Amplification/Deamplification) can be found on each soil layer when being moved from thebedrock to the ground surface. By comparing the average shear stress caused by the acceleration ofthe earthquake to the effective vertical stress at each soil layer, we can obtain the value of CyclicStress Ratio. Lastly, calculate CRR (Cyclic Resistant Ratio) which is the value of soil resistance toliquefaction. Based on CRR value, it can be seen the corrected conus penetration value (qc1N). Thethree parameters are then connected in the NCEER 1996 chart to assess which soil layers arepotentially liquefied or not during an earthquake.

Author Biographies

Mario HUTAGALUNG, FT, Universitas Katolik Santo Thomas

Dosen Tetap UNIKA Santo Thomas

Simon Dertha TARIGAN, FT, Universitas Katolik Santo Thomas

Dosen Tetap UNIKA Santo Thomas

References

Das, B. M. (2010). Principles of Geotechnical Engineering, Stamford, Connecticut: Cengage Learning.

Hasmar, A. H. (2007). Evaluasi Potensial Likuifaksi Akibat Gempa Bumi Tektonik Lapisan Pasir Jenuh Air dengan Metode Shaking Table (Studi Kasus Pasir Kali Krasak Yogyakarta). Logika. 4(1).

Irsyam, M. (2006). Pengantar Dinamika Tanah dan Rekayasa Gempa. Bandung: ITB.

Harahap, I. S., & Rudi, I. Rekonturing Zona Percepatan Gempa Di Permukaan Tanah Propinsi Sumatera Utara Dengan Program Aplikasi Shake 2000 (Tesis Master). Diakses dari Perpustakaan Universitas Sumatera Utara, Medan.

Sinaga, J. Frans Bolmen. (2013). Analisis Potensi Likuifaksi Pada Proyek Ware House Belawan (Skripsi Sarjana). Diakses dari perpustakaan Universitas Sumatera Utara, Medan.

Seed, H. B., & Idriss, I. M. Simplified Procedure for Evaluating Soil Liquefaction Potential. Journal of the Soil Mechanics and Foundations Division, 97(9), 1249-1273.

Youd, T. L., & Idriss, I. M. (2001). Liquefaction resistance of soils: summary report from the 1996

NCEER and 1998 NCEER/NSF workshops on evaluation of liquefaction resistance of soils. Journal of geotechnical and geoenvironmental engineering, 127(4), 297-313.

Published

2019-05-31

How to Cite

HUTAGALUNG, M., & TARIGAN, S. D. (2019). Analisis Potensi Likuifaksi Akibat Gempa (Studi Kasus : Reklamasi Pelabuhan Kontainer Belawan Fase-2). Jurnal Rekayasa Konstruksi Mekanika Sipil (JRKMS), 2(1), 15–34. https://doi.org/10.54367/jrkms.v2i1.433

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