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List of products by author: S. K. Ahn
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Analysis of Tunnel Rock Cutting by Diamond Wire Saw Blade Using a Finite Element Model
Abstract: Different engineering applications including mining, tunnelling, etc. uses mechanical rock cutting process. Rock cutting is the principle work performed for the tunnelling. Various types of rock cutting process are performed these days (i.e., sawing, rotary blade, drilling etc.). Because of urbanization, more and more land is being used for structural development. Thus making underground...
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Application of an Electric Rock Breaking method to mitigate vibration during tunnel blasting
Abstract: Vibration mitigation of a drill and blast excavation is one of the main issues in urban tunneling, and various preventive techniques have been tried so far. A pre-cut excavation method introduced in Lee, . (2016) is an alternative to reduce the blasting vibration although the preparation time of the additional cut should be shortened in field application. Another technique was investigated in...
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Rail tunnel enlargement strategies in South Korea
Abstract: Little attention appears to have been paid to the art of tunnelling aiming to increase the cross-sectional are of the existing rail tunnels because of the difficulties involved if the tunnels ought to be kept at least partially functional during the enlargement operation. There is a necessity arisen recently of accommodating the double stack train in a conventional line linking two largest...
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