The basic focus of this study act the evaluation of the risk of liquefaction provoked by earthquakes utilizing Liquefaction Potential Index (LPI) values for shocks with magnitudes of 5.0, 7.0, and 8.0 and peak ground accelerations (amax.) of 0.28 g in Ukhiya, Cox's Bazar, Bangladesh. During a seismic occurrence, liquefaction—one of the main destructive geohazards—typically takes place in saturated or incompletely saturated arenicolous or silty soils. A seismically active region's potential for melding should be determined since achievement so can help prevent fatalities and damage to civil foundation. Standard Penetration Test (SPT) results have been judged for potential liquefaction estimate. These soils are mainly composed of very promiscuous to loose sands accompanying some silts and clays. Geotechnical features of these very loose arenicolous soils are very much consistent accompanying the criteria of liquefiable soils. It is settled from the grain height analysis results; the soil of the study area is principally Sand dominated (SP) accompanying some Silty Clay (SC) that consists of 93.68% to 99.48% sand, 0.06% to 4.71% pebbles and 0% to 6.26% silt and brick. Some Clayey Sand (SC) is also present. The Silty Clay maybe characterized as medium (CI) to extreme plasticity (CH) inorganic mud soil. LPI values have happened calculated to label risk zones and to prepare risk maps of the investigated region. Based on these obtained LPI principles, four (4) susceptible water buildup risk zones are identified as low, medium, extreme and very high. The settled “Risk Maps” can be secondhand for future geological construction works as well as for tenable planning, design and creation purposes relating to agreement and mitigation of seismic hazards in the examined area.
Author(s) Details:
Abu Taher Mohammad Shakhawat Hossain,
Geological Engineering, Geo-Hazards & Disaster Sciences Research
Group, Department of Geological Sciences, Jahangirnagar University, Savar
Union, Bangladesh.
Md. Shakil Mahabub,
Geological
Engineering, Geo-Hazards & Disaster Sciences Research Group, Department of
Geological Sciences, Jahangirnagar University, Savar Union, Bangladesh.
Tanmoy Dutta,
Geological Engineering, Geo-Hazards & Disaster Sciences Research
Group, Department of Geological Sciences, Jahangirnagar University, Savar
Union, Bangladesh.
Mahmuda Khatun,
Geological Engineering, Geo-Hazards & Disaster Sciences Research
Group, Department of Geological Sciences, Jahangirnagar University, Savar
Union, Bangladesh.
Toru Terao,
Graduate School of Science for Creative Emergence, Kagawa University,
Kagawa, Japan.
Md. Hasan Imam,
Geological
Engineering, Geo-Hazards & Disaster Sciences Research Group, Department of
Geological Sciences, Jahangirnagar University, Savar Union, Bangladesh.
Hossain Md. Sayem,
Geological Engineering, Geo-Hazards & Disaster Sciences Research
Group, Department of Geological Sciences, Jahangirnagar University, Savar
Union, Bangladesh.
Md. Emdadul Haque,
Geological Engineering, Geo-Hazards & Disaster Sciences Research
Group, Department of Geological Sciences, Jahangirnagar University, Savar
Union, Bangladesh.
Purba Anindita Khan,
Geological Engineering, Geo-Hazards
& Disaster Sciences Research Group, Department of Geological Sciences,
Jahangirnagar University, Savar Union, Bangladesh.
Sheikh Jafia Jafrin,
Geological Engineering, Geo-Hazards &
Disaster Sciences Research Group, Department of Geological Sciences,
Jahangirnagar University, Savar Union, Bangladesh.
Please see the link here: https://stm.bookpi.org/EIEGES-V3/article/view/12395
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