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Cone Penetration Test (CPT) Based Liquefaction Hazard Investigation in Mississippi County of Northeast Arkansas
The interaction of seismically active New Madrid Seismic Zone (NMSZ) and Mississippi Embayment (ME) in Northeast Arkansas (NEA) has a greater chance of liquefaction in the region. Structures like bridges are vulnerable to the liquefaction phenomenon. So, the cone penetration test (CPT) data of 52 sites located within Mississippi County have been used for liquefaction vulnerability assessments using Cliq V.3.4.1.4 software. The values of peak ground acceleration (PGA) and moment magnitude of the earthquake (MM), required for liquefaction assessment, have been obtained from different site-specific ground motion response (SSGMR) analyses. The liquefaction analysis gives liquefied layers for foundation depths to be considered against and values of liquefaction potential indices that illustrate the relative vulnerability of liquefaction during sufficient earthquake triggering. Liquefaction hazard maps based on one of the liquefaction potential indices, liquefaction potential index (LPI), have been generated using the ArcGIS Pro tool that shows the spatial distribution of extent of risk due to cyclic liquefaction. These hazard maps can help to identify the vulnerable regions that may cause damage, mostly to bridges within Mississippi County in NEA, which can be used by the Arkansas Department of Transportation (ARDOT).
Cone Penetration Test (CPT) Based Liquefaction Hazard Investigation in Mississippi County of Northeast Arkansas
The interaction of seismically active New Madrid Seismic Zone (NMSZ) and Mississippi Embayment (ME) in Northeast Arkansas (NEA) has a greater chance of liquefaction in the region. Structures like bridges are vulnerable to the liquefaction phenomenon. So, the cone penetration test (CPT) data of 52 sites located within Mississippi County have been used for liquefaction vulnerability assessments using Cliq V.3.4.1.4 software. The values of peak ground acceleration (PGA) and moment magnitude of the earthquake (MM), required for liquefaction assessment, have been obtained from different site-specific ground motion response (SSGMR) analyses. The liquefaction analysis gives liquefied layers for foundation depths to be considered against and values of liquefaction potential indices that illustrate the relative vulnerability of liquefaction during sufficient earthquake triggering. Liquefaction hazard maps based on one of the liquefaction potential indices, liquefaction potential index (LPI), have been generated using the ArcGIS Pro tool that shows the spatial distribution of extent of risk due to cyclic liquefaction. These hazard maps can help to identify the vulnerable regions that may cause damage, mostly to bridges within Mississippi County in NEA, which can be used by the Arkansas Department of Transportation (ARDOT).
Cone Penetration Test (CPT) Based Liquefaction Hazard Investigation in Mississippi County of Northeast Arkansas
Rupesh, Mahat (author) / Ariful, Hasan Md. (author) / Zahid, Hossain (author)
Tran-SET 2022 ; 2022 ; San Antonio, Texas
Tran-SET 2022 ; 280-288
2022-12-13
Conference paper
Electronic Resource
English
Liquefaction Assessment of Northeast Arkansas, USA
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