Duhee Park
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View article: Development of a site and motion proxy-based site amplification model for shallow bedrock profiles using machine learning
Development of a site and motion proxy-based site amplification model for shallow bedrock profiles using machine learning Open
Accurate prediction of site amplification is crucial for seismic hazard assessment, particularly at shallow bedrock sites where limited data can constrain modeling efforts. Traditional regression-based models often fail to capture complex …
View article: Development of Coherency Models from Finite Element Simulations at a Hard Rock Site in Busan, Korea
Development of Coherency Models from Finite Element Simulations at a Hard Rock Site in Busan, Korea Open
View article: Predicting Blast-Induced Damage and Dynamic Response of Drill-and-Blast Tunnel Using Three-Dimensional Finite Element Analysis
Predicting Blast-Induced Damage and Dynamic Response of Drill-and-Blast Tunnel Using Three-Dimensional Finite Element Analysis Open
The significance of predicting the dynamic response and damage of an existing concrete tunnel during underground blasting has increased owing to the close proximity between the newly built and existing tunnels. Peak particle velocity (PPV)…
View article: Spatial Coherency Analysis of Seismic Motions from a Hard Rock Site Dense Array in Busan, Korea
Spatial Coherency Analysis of Seismic Motions from a Hard Rock Site Dense Array in Busan, Korea Open
View article: Estimation of Newmark displacement of homogeneous soil slopes from static factor of safety and ground motion parameters
Estimation of Newmark displacement of homogeneous soil slopes from static factor of safety and ground motion parameters Open
View article: Development of Site and Motion Proxy-Based Site Amplification Models for Shallow Bedrock Profiles Using Machine Learning
Development of Site and Motion Proxy-Based Site Amplification Models for Shallow Bedrock Profiles Using Machine Learning Open
View article: Seismic ground motion incoherency evaluation and numerical simulation based on spatial variability of rock site
Seismic ground motion incoherency evaluation and numerical simulation based on spatial variability of rock site Open
View article: Machine learning based site amplification prediction models for shallow bedrock sites
Machine learning based site amplification prediction models for shallow bedrock sites Open
View article: Deep neural network based approach for site amplification prediction of shallow bedrock sites
Deep neural network based approach for site amplification prediction of shallow bedrock sites Open
Site amplification models have been proposed based on the empirical and simulation results and represented by the functional form with regression analysis. However, these regression models result in large differences between the results. I…
View article: Optimal earthquake intensity measures for probabilistic seismic demand models of rectangular tunnels
Optimal earthquake intensity measures for probabilistic seismic demand models of rectangular tunnels Open
This study aims to identify optimal intensity measures (IMs) for use in probabilistic seismic demand models (PSDMs) for rectangular tunnels in three soil deposits. To this end, we performed an extended numerical parametricstudy involving t…
View article: Estimation of <i>V</i> <sub>S30</sub> using shallow depth time-averaged shear wave velocity of Rawalpindi–Islamabad, Pakistan
Estimation of <i>V</i> <sub>S30</sub> using shallow depth time-averaged shear wave velocity of Rawalpindi–Islamabad, Pakistan Open
The time-averaged shear wave velocity of top 30 m (VS30) is the most commonly used parameter to classify a site and evaluate its amplification characteristics for the seismic design. The in-situ seismic tests must be performed up to a dept…
View article: Evaluation of Indirect-Heated Microwave Thermal Desorption Treatment on Engineering Properties of Lubricant-Contaminated Soil
Evaluation of Indirect-Heated Microwave Thermal Desorption Treatment on Engineering Properties of Lubricant-Contaminated Soil Open
Soil pollution caused by oil leakage from various industrial facilities such as gas stations, oil plants, military bases, and railway depots has become a serious global environmental and geotechnical issue. The indirect-heated microwave th…
View article: Assessment of Heavy Metal and Oil-Contaminated Silty Sand Treatment by Electrical Resistance Heating Method
Assessment of Heavy Metal and Oil-Contaminated Silty Sand Treatment by Electrical Resistance Heating Method Open
The feasibility of the electrical resistance heating method developed in this study was evaluated for the remediation of multi-contaminated silty sand in terms of environmental and geotechnical aspects. The multi-contaminated silty sand sa…
View article: Stability evaluation of existing subway structure by adjacent excavation in urban tunnelling
Stability evaluation of existing subway structure by adjacent excavation in urban tunnelling Open
View article: Investigation of Spudcan Penetration Resistance in Layered Soil Deposits
Investigation of Spudcan Penetration Resistance in Layered Soil Deposits Open
View article: Evaluation of the Behavioral Characteristics of Soil Nail Using High-strength Steel Pipe through Field Test
Evaluation of the Behavioral Characteristics of Soil Nail Using High-strength Steel Pipe through Field Test Open
View article: Development of Simulation Based p-Multipliers for Laterally Loaded Pile Groups in Granular Soil Using 3D Nonlinear Finite Element Model
Development of Simulation Based p-Multipliers for Laterally Loaded Pile Groups in Granular Soil Using 3D Nonlinear Finite Element Model Open
The behavior of laterally loaded pile groups is usually accessed by beam-on-nonlinear-Winkler-foundation (BNWF) approach employing various forms of empirically derived p-y curves and p-multipliers. Averaged p-multiplier for a particular pi…
View article: Evaluation of the Influence of Shear Strength Correction through a Comparative Study of Nonlinear Site Response Models
Evaluation of the Influence of Shear Strength Correction through a Comparative Study of Nonlinear Site Response Models Open
View article: Effect of Nonlinear Soil Model on Seismic Response of Slopes Composed of Granular Soil
Effect of Nonlinear Soil Model on Seismic Response of Slopes Composed of Granular Soil Open
A series of two‐dimensional finite element analyses are performed to simulate the seismic response of slope composed of granular soil. Four sets of input parameters for the nonlinear soil model are used to fit the reference the shear modul…
View article: Evaluation of Liquefaction Triggering for the Pohang Area Based on SPT and CPT Tests
Evaluation of Liquefaction Triggering for the Pohang Area Based on SPT and CPT Tests Open
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View article: Estimation of Seismically-Induced Crest Settlement of Earth Core Rockfill Dams
Estimation of Seismically-Induced Crest Settlement of Earth Core Rockfill Dams Open
The settlement at the dam crest induced by earthquake loading is an important design parameter widely used to evaluate the seismic performance of dams. Two-dimensional nonlinear dynamic analyses were performed to calculate the dam crest se…
View article: Seismic Damage Analysis of Box Metro Tunnels Accounting for Aspect Ratio and Shear Failure
Seismic Damage Analysis of Box Metro Tunnels Accounting for Aspect Ratio and Shear Failure Open
We performed a series of inelastic frame analyses for single, double, and triple reinforced concrete box tunnels to investigate their unique damage mechanisms. We focused our interest on the influence of the aspect ratio of box tunnels and…
View article: Dynamic Earth Pressure on Embedded Structure
Dynamic Earth Pressure on Embedded Structure Open
View article: Seismic Fragility Evaluation of Cut-and-cover Tunnel
Seismic Fragility Evaluation of Cut-and-cover Tunnel Open
View article: A proposed seismic velocity profile database model
A proposed seismic velocity profile database model Open
We describe the data model that we intend to use in a publicly available site profile database under development for the United States. The initial implementation of the database contains data from California. Currently, our prototype data…
View article: Estimation of Drained Shear Strength of Granular Soil from Shear Wave Velocity and Confining Stress
Estimation of Drained Shear Strength of Granular Soil from Shear Wave Velocity and Confining Stress Open
Building upon a previously reported hypothesis suggesting a unique linear relationship between the small strain shear modulus and major principal effective stress at failure, this paper proposes a new empirical equation to estimate the dra…
View article: Extracting Foundation Input Motion Considering Soil-Subterranean Level Kinematic Interaction
Extracting Foundation Input Motion Considering Soil-Subterranean Level Kinematic Interaction Open
View article: Propagation characteristics of blast-induced vibration to fractured zone
Propagation characteristics of blast-induced vibration to fractured zone Open
View article: Evaluation of Spudcan Penetration/Extraction Behavior in Uniform Sand and Clay
Evaluation of Spudcan Penetration/Extraction Behavior in Uniform Sand and Clay Open
View article: Correlation Analysis of Sewer Integrity and Ground Subsidence
Correlation Analysis of Sewer Integrity and Ground Subsidence Open