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List of products by author: S. Kim
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Design Model of Residual Water Pressure on the Tunnels act as Drains
Abstract: Deep tunnels or subsea tunnels are generally undertaking considerably high water pressure, and are required to flow into the tunnel to reduce the water pressure. To avoid structural effect, tunnels under high water pressure exceeding 6 bar are commonly recommended to construct as a drained tunnel. However, even the tunnel is designed as drained, tunnel linings take water pressure which is...
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Experimental Rock Cutting Tests with Actuated Disc
Abstract: The Actuated disc cutting (ADC) is one of the most state-of-art technologies in the fields of rock cutting mechanics. The ADC is based on the undercutting mechanism, while many cutting parameters are involved in a complex rock cutting process. This paper introduces the new concept of a lab-scaled rock cutting system which can facilitate cutting experiments implemented undercutting concept based...
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Flexural Performance Evaluation of Macro PET Fiber Reinforced Tunnel Shotcrete
Abstract: Since the introduction of the drill and blast method for tunnel construction, shotcrete has been used to stabilize excavated tunnel surfaces by controlling the initial displacement of the tunnel walls and preventing weathering. Recently, much attention has also been paid to the role of shotcrete in terms of long-term use of tunnel structure and safety(Yoon et al. 2013). Fiber reinforced...
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Operation Technique of Mechanized Tunnelling in Mixed Ground
Abstract: These days, mechanized tunneling using TBM (Tunnel Boring Machine) has become very popular in many countries. There are numerous advantages using a TBM in contrast to a conventional tunneling technique such as NATM (New Austrian Tunneling Method). Even though a mechanized tunneling requires significantly large investment for preparing a TBM and its facilities, it is more beneficial to adopt...
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Risk assessment of shield TBM tunnelling in soft marine sediments
Abstract: Some risks such as machine settlement, jamming, damage of cutters and others are frequently encountered due to the uncertainties of geological and operational factors during subsea shield TBM tunnelling. This paper, thus, focused on the risk assessment of shield TBM tunnelling in adverse ground conditions. Particularly, the correlation between shield TBM settlement and its advance rate was...
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