.

ISSN 2063-5346
For urgent queries please contact : +918130348310

ESTIMATION OF LIQUEFACTION POTENTIAL OF MINING DUMP AREA IN NAGPUR REGION BASED ON FIELD ASSESSMENT BY SPT DATA

Main Article Content

Manish V. Bawankule1*, Dr Shantanu N. Pawar2,
» doi: 10.48047/ecb/2023.12.10.123

Abstract

In geotechnical engineering, liquefaction is a difficult, contentious, but crucial issue, particularly in earthquake-prone areas. Regarding the design of the mining waste disposal system, the expanding mining sector in Nagpur may pose a significant difficulty due to the seismic activity. One of the main reasons for this form of structure failure, which is primarily ascribed to liquefaction, is earthquakes. Infrastructure suffers significant damage as a result of this earthquake's secondary effect. The third-largest and most rapidly developing city in Maharashtra is Nagpur. The major goal of this study is to map the mining dump area of Nagpur region in light of the possibility of liquefaction occurring and to make data easily accessible for use in further studies. For liquefaction assessment of soil found during investigation in the mining region, an SPT-N based approach is adopted. The possibility for liquefaction is evaluated in relation to the factor of safety (FS) component along the depth of various soil strata encountered throughout the study. By conducting Standard penetration tests (SPT) and recording the results in bore holes, this liquefaction potential is assessed at 11 sample sites throughout the mine dumped area. The current work on liquefaction potential computation demonstrates the sensitivity of liquefaction computation to the SPT blow count and peak ground acceleration. The SPT-N value is corrected for the Cyclic Resistance Ratio (CRR), which shows that the soil in the area is not uniform at all locations, the water table is variable, and N values vary according to the soil properties but are typically on the higher sides, indicating that liquefaction potential is significantly lower.

Article Details