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Assessment of SPT-Based Liquefaction Potential of Kalyani Region, Kolkata
Liquefaction is the phenomena in which the saturated fine sand loses its shear strength and stiffness when a cyclic or an earthquake loading. The evaluation of liquefaction potential and seismic microzonation of a certain area can be done. Ground improvement requirement of a site is conducted after the evaluation of liquefaction potential of that site. The aim of the present study is to evaluate of liquefaction potential for AIIMS kalyani Campus, Kolkata. Kalyani is a city which comes under Nadia district, of west Bengal it is located around 50 km from Kolkata city. The main objective of the present study is to evaluate the liquefaction potential of AIIMS Kalyani Campus for different magnitudes of earthquake, i.e. 7.5, 7.0 and 6.5 and peak ground acceleration (amax = 0.16 g). For this purpose, the factor of safety against liquefaction was evaluated at different depths for the six sites in AIIMS Kalyani campus based on SPT-based approached. It was found that the factor of safety against the liquefaction for magnitude of earthquake 6.5 is marginally greater than that 7.5 and 7.0 for all the sites. It can be observed that from the results that the FOS against for 6.5 magnitude earthquake is 21% greater than that for 7.0 magnitude earthquake.
Assessment of SPT-Based Liquefaction Potential of Kalyani Region, Kolkata
Liquefaction is the phenomena in which the saturated fine sand loses its shear strength and stiffness when a cyclic or an earthquake loading. The evaluation of liquefaction potential and seismic microzonation of a certain area can be done. Ground improvement requirement of a site is conducted after the evaluation of liquefaction potential of that site. The aim of the present study is to evaluate of liquefaction potential for AIIMS kalyani Campus, Kolkata. Kalyani is a city which comes under Nadia district, of west Bengal it is located around 50 km from Kolkata city. The main objective of the present study is to evaluate the liquefaction potential of AIIMS Kalyani Campus for different magnitudes of earthquake, i.e. 7.5, 7.0 and 6.5 and peak ground acceleration (amax = 0.16 g). For this purpose, the factor of safety against liquefaction was evaluated at different depths for the six sites in AIIMS Kalyani campus based on SPT-based approached. It was found that the factor of safety against the liquefaction for magnitude of earthquake 6.5 is marginally greater than that 7.5 and 7.0 for all the sites. It can be observed that from the results that the FOS against for 6.5 magnitude earthquake is 21% greater than that for 7.0 magnitude earthquake.
Assessment of SPT-Based Liquefaction Potential of Kalyani Region, Kolkata
Lecture Notes in Civil Engineering
Patel, Satyajit (editor) / Solanki, C. H. (editor) / Reddy, Krishna R. (editor) / Shukla, Sanjay Kumar (editor) / Kumar, Sajjan (author) / Srivastav, Tanuj (author) / Muley, Pradeep (author)
2021-05-06
11 pages
Article/Chapter (Book)
Electronic Resource
English
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