Main Article Content
Abstract
Evaluation of liquefaction potential by the conventional way are based on deterministic methods. The methods use only one condition of earthquake load as parameter in liquefaction analysis. Actually, the strength of earthquake loads are varies. In the other words, there is the uncertainty magnitude of earthquake loading. The uncertainty can be taken into analysis only by using a probabilistic approach. This study describes how to analyze liquefaction by probabilistic method. The method used was performance-based evaluation, developed by
Kramer and Mayfield (2005, 2007). This method include contributions from all levels of magnitude earthquake (hazard levels) in liquefaction analysis. The research location is in Padang, West Sumatra. Soil Investigation data used are N-SPT and shear wave velocity spread in the city of Padang. Earthquake load parameters used were obtained from PSHA and deagregation analysis. The results of this study show the variation of liquefaction potential across the city of Padang based on liquefaction return period. The location with great potential
for liquefaction (FS <1) by the probability more than 50% were in the coastal region and northern parts of Padang.
Article Details
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
- This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
References
- Cetin, K. O., et al. (2004) : Standard penetration test-based probabilistic
- and deterministic assessment of seismic soil liquefaction potential. Journal Geotech. Geoenviron. Eng., 130(12), 1314-1340.
- Huang Yi-Min. (2008) : Performance Based Design and Evaluation for
- Liquefaction-Related Seismic Hazards, Disertasi Program Doktor, Washington University, Chapter II, 7.
- Kramer, S. L., dan Mayfield, R. T. (2005) :Performance-based liquefaction
- hazard evaluation, Proceeding Congress Session of The GeoFrontiers,
- R. W. Boulanger et al., eds., ASCE, Reston, Va.
- Kramer, S. L., dan Mayfield, R. T. (2007) : Return period of soil liquefaction, Journal of Geotech. Geoenviron. Eng., 133(7), 802-813.
- Sengara, Sadisun, Sumiartha, dkk. (2008) : Laporan Akhir Zonasi Seismik Sumatera Barat dan Mikrozonasi Kota Padang, Pusat Mitigasi Bencana Institut Teknologi Bandung.
- Sengara, Hakam, G. Putra dkk. (2009) : Seismic Hazard Zoning for West
- Sumatera and microzonation of City of Padang, Proceeding of the international symposium on Geoinformatics and Zoning for Hazard
- Mapping in Kyoto, Kyoto, Japan.
- Sengara, Hakam, G. Putra dkk. (2009) : Reconnaissance Survey and
- Geotechnical Engineering Aspect of West Java and West Sumatera
- Earthquake Disaster, Prosiding Pertemuan Ilmiah Tahunan XIII 2009,
- Himpunan Ahli Teknik Tanah Indonesia, halaman K-14. Denpasar,
- Bali.
References
Cetin, K. O., et al. (2004) : Standard penetration test-based probabilistic
and deterministic assessment of seismic soil liquefaction potential. Journal Geotech. Geoenviron. Eng., 130(12), 1314-1340.
Huang Yi-Min. (2008) : Performance Based Design and Evaluation for
Liquefaction-Related Seismic Hazards, Disertasi Program Doktor, Washington University, Chapter II, 7.
Kramer, S. L., dan Mayfield, R. T. (2005) :Performance-based liquefaction
hazard evaluation, Proceeding Congress Session of The GeoFrontiers,
R. W. Boulanger et al., eds., ASCE, Reston, Va.
Kramer, S. L., dan Mayfield, R. T. (2007) : Return period of soil liquefaction, Journal of Geotech. Geoenviron. Eng., 133(7), 802-813.
Sengara, Sadisun, Sumiartha, dkk. (2008) : Laporan Akhir Zonasi Seismik Sumatera Barat dan Mikrozonasi Kota Padang, Pusat Mitigasi Bencana Institut Teknologi Bandung.
Sengara, Hakam, G. Putra dkk. (2009) : Seismic Hazard Zoning for West
Sumatera and microzonation of City of Padang, Proceeding of the international symposium on Geoinformatics and Zoning for Hazard
Mapping in Kyoto, Kyoto, Japan.
Sengara, Hakam, G. Putra dkk. (2009) : Reconnaissance Survey and
Geotechnical Engineering Aspect of West Java and West Sumatera
Earthquake Disaster, Prosiding Pertemuan Ilmiah Tahunan XIII 2009,
Himpunan Ahli Teknik Tanah Indonesia, halaman K-14. Denpasar,
Bali.