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List of products by author: H. Lee
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A Numerical Study on Mechanical Behav iour of Cross Passage Constructed by Arti ficial Ground Freezing Method
Abstract: In subsea tunnel constructions, where water pressure is higher than 20 bars, the convention grouting technologies are restricted to apply because they cannot implement appropriate water cut-off. For these extreme conditions, the artificial ground freezing (AGF) method can be an effective alternative, especially for constructing cross passages of a subsea tunnel through highly-fractured fault...
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Application of Artificial Neural Network for Prediction of Surface Settlement During Shield TBM
Abstract: Surface settlement induced by shield TBM tunnel excavation in shallow soft ground can threaten the stability of adjacent structures in urban areas. Controlling the ground surface settlements occurred during tunneling is one of the key issues for tunneling engineers. Numerous researches for the prediction of surface settlement have been attempted along with analytical, empirical and/or numerical...
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Importance of face pressure and tail void grouting on numerical modeling of shield TBM tunneling through soft ground...
Abstract: Shield tunneling is now becoming a general trend in tunnel excavation. Despite the growing importance of shield tunneling, a prevalent standard for its numerical analysis has not been established yet, due to difficulty in appropriate implementation of face pressure, tail void grouting, and continuous excavation steps during shield TBM tunneling. Since there are various empirical methods to...
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Laboratory Study on Characteristics of Foam - Conditioned Weathered Granite Soil
Abstract: The weathered granite soil that is widely distributed in the Korean peninsula has unique characteristics compared to typical sandy or clayey soils. When tunnelling the ground consisting of the weathered granite soil by the earth pressure balance (EPB) shields, it is necessary to evaluate the effect of foam conditioning on the behavior of the weathered granite soil. In this study, a...
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