Fasies Sedimen Kuarter Kaitannya Dengan Potensi Likuefaksi Di Kawasan Das Cimanuk, Indramayu, Jawa Barat
DOI:
https://doi.org/10.34151/jurtek.v15i2.3158Keywords:
liquefaction potential, quartenary sediment, sediment faciesAbstract
The lower Cimanuk catchment area which will be developed as industrial area is dominated by Quaternary deposits which are susceptible againts liquefaction if large earthquakes occurred. The presence of Subang, Cirebon 1 and Cirebon 2 active fault segments will trigger earthquake which potentially liquefaction. This study aims to characterize the type of sedimentary facies induced liquefaction hazard in the lower Cimanuk catchment area, Indramayu, West Java. This research methods consist of borehole description and sedimentary facies analysis based on CPT and CPTu data with cone resistance (qt) corrected value, friction ratio (Fr), laboratory analysis and liquefaction potential based on SNI 1726:2019, which is deterministic and 2,500 years return period PGA value. Based on facies association analysis there are three facies that developed in the study area. First, delta plain facies consisting of fluvial sands, silt and clay. Second, delta front facies consisting of beach ridge sands and sandy silt. Third, silt and clay prodelta facies. Liquefaction potential analysis based on N-SPT, CPT and CPTu data shows that almost all test point are potentially liquefied, especially beach ridge sands and silty sand delta front facies. Liquefaction potential is more in the northern region of the study area, caused by the low density of sand and sandy sediments (N-SPT value < 10 or qc < 6,000 kPa).
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References
Achdan, A. dan Sudana, D. (1992). Peta geologi lembar Indramayu, Jawa Barat. Bandung, Badan Geologi.
Amorosi, A. dan Marchi, N. (1999). High resolution sequence stratigraphy from piezone test: an example from Late Quarternary deposits of the southeastern Po Plain. Sedimentary Geology, Elsevier, 128, 67-81.
Batu, U. M. L dan Hidayat, S. (2011). Geologi bawah permukaan kaitannya dengan potensi pelulukan likuefaksi di daerah Eretan dan Losarang, Jawa Barat. Jurnal Sumber Daya Geologi, 21, 109-124.
Bell, F. G., (2007). Engineering Geology, second edition. Butterworth-Heineman, Elsevier Ltd., Jordan Hill, Oxford.
Bird, E. C. F. dan Ongkosongo, O. S. R. (1980). Environmental changes on the coasts of Indonesia. The United Nation University, Tokyo.
Boulanger, R. W. dan Idriss, I. M. (2014). CPT and SPT based liquefaction triggering procedures. Department of Civil and Environtmental Engineering, University of California.
Buana, T. W., Hermawan, W., Rahdiana, R. N., Widyaningrum, R., Wahyudin, Hasibuan, G., Wiyono, dan Sollu, W. P. (2019). Atlas zona kerentanan likuefaksi Indonesia. Badan Geologi, Bandung.
De Mio, G. dan Giacheti, H. L. (2006). The use of piezocone test for high-resolution stratigraphy of Quartenary sediment squences in the Brazilian coast. Annals of The Brazilian Academy of Sciences, 79, 153-170.
Djuri, M. (1973). Peta geologi lembar Arjawinangun, Jawa Barat. Bandung, Badan Geologi.
Iqbal, P. (2013). Fasies dan karakteristik fisik sedimen Kuarter berpotensi likuefaksi di pesisir Kota Padang dan sekitarnya, provinsi Sumatra Barat. Tesis Program Magister, Institut Teknologi Bandung.
Iqbal, P., Soebowo. E., Tohari, A., Sadisun, I. A., dan Nugroho, D. (2016). Interpretasi data CPT untuk stratigrafi kuarter resolusi tinggi daerah pesisir Kota Padang, Sumatra Barat. Dalam Prosiding Geotek Expo Puslit Geoteknologi LIPI, Bandung, Indonesia.
Irsyam, M., Widiyantoro, S., Natawidjaja, D. H., Meilano, I., Rudiyanto, A., Hidayati, S., Triyoso, W., Hanifa, N. R., Djarwadi, D., Faisal, L., dan Sunarjito. (2017). Peta sumber dan bahaya gempa Indonesia tahun 2017. Pusat Penelitian dan Pengembangan Perumahan dan Permukiman, Badan Penelitian dan Pengembangan, Kementerian Pekerjaan Umum dan Perumahan Rakyat.
Kramer, S. L. (2008). Evaluation of liquefaction hazards in Washington State. Washington State Transportation Center, Washington, USA.
Lafuerza, S., Canals, M., Casamor, J. L., dan Devicienci, J. M. (2005). Characterization of deltaic sediment bodies based on in situ CPT/CPTU profiles: A case study of the Llobregat delta plain, Barcelona, Spain. Marine Geology, Elsevier, 222, 497-510.
Nguyen, N., Griffin, J., Cipta, A., dan Cummins, P. R. (2015). Indonesia’s Historical Earthquakes: Modelled examples for improving the national hazard map. Record 2015/23. Geoscience Australia, Canberra. http://dx.doi.org/10.11636/Record.2015.023
Nichols, G. (2009). Sedimentology and Stratigraphy 2nd edition. John Willey and Sons Ltd., Blackwell Publishing, Chichester, UK.
Robertson, P. K., dan Wride, C. E. (1998). Evaluating cyclic liquefaction potential using the cone penetration test. Canadian Geotechnical Journal, 35, 442-459.
Sani, R. A., Soebowo, E., dan Sadisun, I. A. (2020). Karakteristik keteknikan sedimen Kuarter kaitannya dengan potensi bahaya geologi di kawasan DAS Cimanuk bagian hilir. Jurnal Lingkungan dan Bencana Geologi, 11, 161-173.
Satriyo, A. S. (2017). Analisis karakteristik fisik dan daya dukung sedimen Kuarter di wilayah pesisir Pendungan, Kabupaten Bali Selatan serta kaitannya dengan sebaran fasies, Tesis Program Magister, Institut Teknologi Bandung.
SNI 1726:2019 tentang Tata Cara Perencanaan Ketahanan Gempa untuk Struktur Bangunan Gedung dan non Gedung.
Soebowo, E. (2016). Geologi teknik sedimen Kuarter dan bahaya amblesan, likuefaksi di Serangan - Tuban - Tanjung Benoa, Bali. Riset Geologi dan Pertambangan, 26, 41-54.
Styllas, M. (2014). A simple approach to define Holocene sequence stratigraphy using borehole and cone penetration test data. Sedimentology, 61, 444-460.
Tjia, H. D., Asikin, S., dan Atmadja, R. S. (1968). Coastal accretion in western Indonesia. Bulletin of National Institute of Geology and Mining, 1, 15-45.
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