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A platform for research: civil engineering, architecture and urbanism
“Liquefaction Potential Study of Subsurface Soil in Southern Jorhat, Assam”
Jorhat is one of the major cities of Assam situated on the banks of river Bhogdoi, a tributary of the river Brahmaputra. In the present study, the liquefaction potential index of the subsoil deposits in the city of Jorhat is evaluated by using the procedures suggested in Annexure F of IS 1893 (Part-1) 2016. The available subsoil investigation (SSI) reports of 37 different locations within the Southern Jorhat region are collected for the purpose from different agencies. However, the same has been reutilized in this present work to estimate the liquefaction potential of these areas concerned using N-values and fines content of the boreholes as listed in those reports. Evaluation of liquefaction potential of these locations is carried out depth-wise for different earthquake magnitudes of 6, 6.5 (are chosen arbitrarily), 7.1 (Dhubri earthquake 1930), 7.3 (Assam earthquake 1947), 8.0 (Assam earthquake 1897), and 8.6 (Assam Tibet earthquake 1950). The final results are presented in the GIS base maps using QGIS software. These results show that as you increase the depth the susceptibility towards liquefaction potential decreases.
“Liquefaction Potential Study of Subsurface Soil in Southern Jorhat, Assam”
Jorhat is one of the major cities of Assam situated on the banks of river Bhogdoi, a tributary of the river Brahmaputra. In the present study, the liquefaction potential index of the subsoil deposits in the city of Jorhat is evaluated by using the procedures suggested in Annexure F of IS 1893 (Part-1) 2016. The available subsoil investigation (SSI) reports of 37 different locations within the Southern Jorhat region are collected for the purpose from different agencies. However, the same has been reutilized in this present work to estimate the liquefaction potential of these areas concerned using N-values and fines content of the boreholes as listed in those reports. Evaluation of liquefaction potential of these locations is carried out depth-wise for different earthquake magnitudes of 6, 6.5 (are chosen arbitrarily), 7.1 (Dhubri earthquake 1930), 7.3 (Assam earthquake 1947), 8.0 (Assam earthquake 1897), and 8.6 (Assam Tibet earthquake 1950). The final results are presented in the GIS base maps using QGIS software. These results show that as you increase the depth the susceptibility towards liquefaction potential decreases.
“Liquefaction Potential Study of Subsurface Soil in Southern Jorhat, Assam”
Lecture Notes in Civil Engineering
Muthukkumaran, Kasinathan (editor) / Ayothiraman, R. (editor) / Kolathayar, Sreevalsa (editor) / Saikia, Kapil (author) / Haque, Sahidul (author) / Borah, Krishan (author) / Goswami, Rituparna (author)
Indian Geotechnical Conference ; 2021 ; Trichy, India
Soil Dynamics, Earthquake and Computational Geotechnical Engineering ; Chapter: 40 ; 467-478
2023-01-01
12 pages
Article/Chapter (Book)
Electronic Resource
English
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