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http://dx.doi.org/10.7843/kgs.2014.30.5.47

Prediction of Shear Wave Velocity on Sand Using Standard Penetration Test Results : Application of Artificial Neural Network Model  

Kim, Bum-Joo (Dept. of Civil and Environmental Engrg., Dongguk Univ.)
Ho, Joon-Ki (Geotechnical & Tunnel Engineer, DOHWA Engrg.)
Hwang, Young-Cheol (Dept. of Civil Engrg., Sangji Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.30, no.5, 2014 , pp. 47-54 More about this Journal
Abstract
Although shear wave velocity ($V_s$) is an important design factor in seismic design, the measurement is not usually made in typical field investigation due to time and economic limitations. In the present study, an investigation was made to predict sand $V_s$ based on the standard penetration test (SPT) results by using artificial neural network (ANN) model. A total of 650 dataset composed of SPT-N value ($N_{60}$), water content, fine content, specific gravity for input data and $V_s$ for output data was used to build and train the ANN model. The sensitivity analysis was then performed for the trained ANN to examine the effect of the input variables on the $V_s$. Also, the ANN model was compared with seven existing empirical models on the performance. The sensitivity analysis results revealed that the effect of the SPT-N value on $V_s$ is significantly greater compared to other input variables. Also, when compared with the empirical models using Nash-Sutcliffe Model Efficiency Coefficient (NSE) and Root Mean Square Error (RMSE), the ANN model was found to exhibit the highest prediction capability.
Keywords
Shear wave velocity; Field investigation; Artificial neural network; SPT; Sensitivity analysis;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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