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List of products by author: K. I. Song
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Estimation of Rock Mass Rating (RMR) for TBM using Electrical Resistivity
Abstract: Tunnel excavation using TBMs has many advantages but the TBM method also has some limitations that generate construction delays and increased costs when the TBM runs into problematic sections of ground. Thus, it is important to keep the TBM system safe in the case of unexpected tunnel-ahead ground conditions. To achieve this, the tunnel-ahead prediction system on the TBM needs to reduce the...
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Seismic Analysis of Shaft and Tunnel Intersection Considering Strain-Dependent Rock Mass Behaviour
Abstract: Seismic analyses of the intersection of a shaft and an inclined tunnel were performed based on experimental results obtained with the developed nonlinear dynamic module. Analysis results showed that vertical and horizontal displacements seen in nonlinear analysis are larger than those seen in linear analysis. Also, nonlinear analysis shows bigger bending compressive stress acting on shotcrete....
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