Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Seung-Joong Lee"'
Autor:
Sung-Oong Choi, Seung-Joong Lee
Publikováno v:
Sustainability, Vol 11, Iss 4, p 945 (2019)
Sustainability
Volume 11
Issue 4
Sustainability
Volume 11
Issue 4
This study describes a precise numerical analysis process by adopting the real image of mine openings obtained by light detection and ranging (LiDAR), which can produce a point cloud data by measuring the target surface numerically. The analysis targ
Publikováno v:
Tunnel and Underground Space. 26:348-362
Publikováno v:
Tunnel and Underground Space. 26:120-130
Considering the applicability of Kuz-Ram model, which has been used extensively for predicting rock fragmentation size distribution by blasting, to domestic open-pit limestone mine, a total of 21 blasting tests have been executed at an open-pit limes
Publikováno v:
Journal of Korean Society For Rock Mechanics. 25:332-340
Publikováno v:
Journal of Korean Society For Rock Mechanics. 25:210-219
This paper describes a new quantitative process for evaluating the roughness of discontinuity, which is suggested as a qualitative criteria in RMR or Q-system. For this purpose, the Delphi method which is one of the surveying methods was introduced.
Autor:
Sung-Oong Choi, Seung-Joong Lee
Publikováno v:
KSCE Journal of Civil Engineering. 19:1129-1138
The Linear Cutting Machine (LCM) test is one of the most powerful and reliable methods for verification of the design of disc cutters and predicting the Tunnel Boring Machine (TBM) performance. It has the advantages of predicting the actual load on t
Publikováno v:
Journal of Korean Society For Rock Mechanics. 24:176-186
Roughness, aperture and filling material of rock joint are widely considered to affect the hydraulic characteristics of joint. Among these factors, in this study, the joint roughness was examined with artificial joint profiles generated by Monte Carl
Publikováno v:
Journal of Korean Society For Rock Mechanics. 24:32-45
Publikováno v:
Journal of the Korean Society of Mineral and Energy Resources Engineers. 51:85-96
Publikováno v:
Journal of Korean Society For Rock Mechanics. 23:392-400
Joint sets should be considered as an influence factor, when location of subsidence zone by stopes is predicted. And the mechanical properties and distribution patterns of joint set above stopes may be affecting subsidence occurrence. In this study,