Date of Award
1-24-2024
Document Type
Thesis
Degree Name
Engineering, MSE
First Advisor
Zahid Hossain
Committee Members
Abhijit Bhattacharya; Ashraf Elsayed; Zahid Hossain
Call Number
LD 251 .A566t 2023 M24
Abstract
The presence of seismically active New Madrid Seismic Zone puts Northeast Arkansas at seismic hazard. The deep soft sediments of Northeast Arkansas within the Mississippi Embayment put the region at liquefaction risk. One hundred and thirty-one (131) Cone Penetration Test (CPT) data are used for liquefaction assessments. Liquefaction analysis on 20 m of surficial deposits is analyzed and compared. Sensitivity and parametric study are also conducted. Geographical Information System (GIS) maps based on liquefaction potential indices are generated. Contour maps of liquefaction potentials are developed for Mississippi County. Liquefaction varies spatially in Northeast Arkansas. A full 20 m of soil is not required to cause most of the liquefaction potential of the site. The liquefaction result is affected by cutoff value to attribute the soil type and threshold value of factor of safety. Further sampling and testing are needed based on risk allowed in the project. Contour maps are useful for preliminary prediction of liquefaction potential inside Mississippi County because the map is for single scenario earthquake of moment magnitude of 7.6 and lateral extent of subsurface condition is not accounted.
Rights Management
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Mahat, Rupesh, "Liquefaction Hazard Analysis of Northeast Arkansas Using Cone Penetration Test Data" (2024). Student Theses and Dissertations. 140.
https://arch.astate.edu/all-etd/140
