Abstract
Assessment of Liquefaction susceptibility of soil is very important aspect of disaster risk reduction for a particular region. The present research is an investigation to find out the liquefaction capability for the sites of Jalandhar and its surrounding region, Punjab (India) using semi empirical approach of Idris and Boulanger. Initially, the response of Ground has been analyzed with the help of DEEPSOIL software for evaluating the maximum ground acceleration values (PGASUR) at surface using five earthquake motions of magnitude, M = 6.0, 6.8 and 7.3 selected from worldwide recorded database based on seismicity of the region. The investigated PGA values ranges from 0.196 g to 0.292 g for the sites under investigation. Soil’s potential against liquefaction for 45 locations has been carried out using PGASUR results so obtained. It has been observed that eighteen sites out of forty-five are found to be susceptible to liquefaction. In order to help structural designers and geotechnical engineers for the preparation of realistic plan towards disaster risk reduction for the region, PGASUR contour map of obtained results and liquefaction hazard maps for earthquake of magnitude 6.0 and 7.0 has been prepared on geographical information system (GIS) platform using QGIS software. Doi: 10.28991/cej-2020-03091605 Full Text: PDF
Highlights
Seismic tremors have been happening in the subcontinental region of India since historical times
The result of PGASUR obtained from the current examination is found to be in acceptable range with the previous investigations led in Jalandhar and its surrounding region
Seismic hazard map has been developed for 0.025o×0.025o size grid and it has been observed that PGASUR values lies between 0.140 to 0.280 g
Summary
Seismic tremors have been happening in the subcontinental region of India since historical times. The Interest in earthquakes of strength less than 5.0 M and their probable outcomes in the past few years has expanded essentially, generally because of some undesirable events of earthquakes causing damage, the advancement of evaluation systems of risk related to the seismic activities for present structure stock, and the acknowledgment of the possible danger of actuated seismicity [5] This state of Punjab (India) is in a rapid phase of development regarding industrial growth, escalation of urbanization and population explosion. Seismic soil classification based on Average shear wave velocity for all the selected sites of entire region has been made in accordance with the program related to decrease the risk of people life and destruction of infrastructure from the future tremors i.e. Earthquake reduction program of nation (NEHRP) [16] and map for the same has been prepared. Estimating PGA Values Stress Reduction Factor, rd Ground Response Analysis using DEEPSOIL
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