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최만용 ( Choi Man-young ),홍사장 ( Hong Sa-jang ),지기환 ( Jee Kee-hwan ),박정학 ( Park Jeong-hak ),김수언 ( Kim Su-un ) 한국구조물진단유지관리공학회 2004 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.8 No.2
The number of Tunnels for railway, subway, road, rapid railway have been increased and increasing continuously. And the tunnels are to be larger and longer of its dimension. Therefore, inspection, repair, and maintenance of tunnels are an extremely important part of infrastructure management. To inspect surface state of tunnels, concrete structures, it must generally use method of conventional visual inspection, but this method is very not objective. To measure the width, length, position, direction of a crack, it is very difficult, when the tunnel is long span and high rise. Thus, to make up for this demerits, in this paper is proposed the system that we can check conditions of the tunnel structures quickly, detect the detailed data objectively, count automatically the width of a crack by the original software and follow the trend of long term changes in the condition of a structure.
최만용 ( Choi Man-young ),박정학 ( Park Jeong-hark ),김치엽 ( Kim Chi-yeop ),허광희 ( Heo Gwang-hee ),노윤방 ( Noh Yun-bang ) 한국구조물진단유지관리공학회 2000 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.4 No.1
Rock slopes generally fail along existing geological defects. It is difficult to estimate the stability because mechanical characteristics of rock slope depend on geological condition such as a rock mass with tension crack, joint, fault, and broken zone. Therefore rock slope problems were required consideration of the geometrical relationship between discontinuity planes, the slope and the force vectors in involved. It is useful that measurement technique in order to predict the stability of discontinuous rock slope. The model tests, using a measuring instrument as it is CCD camera, crack gauge, and LVDT etc., propose new method to evaluate for rock slope stability by image measurement.
최만용 ( Choi¸ Man-young ),황인섭 ( Hwang¸ In-sueb ),홍사장 ( Hong¸ Sa-jang ),지기환 ( Jee¸ Kee-hwan ) 한국구조물진단유지관리공학회 2003 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.7 No.1
Passenger’s tunnels for trains, cars and metro as well as utility tunnels have seen their numbers soared. Recently, the tunnel structures are increasing. And the tunnels are to be large diameter tunnel and long. Therefore, inspection, repair, and maintenance of tunnels are an extremely important part of infrastructure management, with particular technical and safety considerations arising from the very nature of underground construction. To inspect surface state of tunnels, concrete structures, it must generally use method of conventional visual inspection, but this method is very not objective. To measure the width, length, position, direction of a crack, it is very difficult, when the tunnel is long span and high rise. Thus, to make up for this demerits, in this paper is proposed the system that we can check conditions of the tunnel structures quickly, detect the detailed data objectively, count automatically; the width of a crack by the original software and follow the trend of long term changes in the condition of a structure.
최만용(Choi Man-Young),황인섭(Hwang In-Sueb),홍사장(Hong Sa-Jang),지기환(Jee Kee-Hwan) 한국구조물진단유지관리학회 2003 한국구조물진단학회 학술발표회논문집 Vol.- No.-
Passenger's tunnels for trains, cars and metro as well as utility tunnels have seen their numbers soared. Recently, the tunnel structures are increasing. And the tunnels are to be large diameter tunnel and long. Therefore, inspection, repair, and maintenance of tunnels are an extrernely important part of infrastructure management, with particular technical and safety considerations arising from the very nature of underground construction. To inspect surface state of tunnels, concrete structures, it must generally use method of conventional visual inspection, but this method is very not objective. To measure the width, length, position, direction of a crack, it is very difficult, when the tunnel is long span and high rise. Thus, to make up for this demerits, in this paper is proposed the system that we can check conditions of the tunnel structures quickly, detect the detailed data objectively, count automatically, the width of a crack by the original software and follow the trend of long term changes in the condition of a structure.
최만용(Choi Man-Young),홍사장(Hong Sa-Jang),지기환(Jee Kee-Hwan),박정학(Park Jeong-Hak),김수언(Kim Su-Un) 한국구조물진단유지관리학회 2004 한국구조물진단학회 학술발표회논문집 Vol.- No.-
The number of Tunnels for railway, subway. road, rapid railway have been Increased and Increasing continuously. And the tunnels are to be larger and longer of Its dimension Therefore, inspection, repair, and maintenance of tunnels are an extremely Important part of Infrastructure, management To inspect surface state of tunnels, concrete structures, it must generally use method of conventional visual inspection, but this method is very not objective. To measure the width, length, position, direction of a crack, It is very difficult, when the tunnel is long span and high rise Thu.;;, to make up for this demerits, in this paper is proposed the system that we can ,check conditions in the tunnel structures quickly, detect the detailed data objectively, count automatically the width of a crack by the origioal software and follow the trend of long term changes In the condition of a structure.
적외선열화상 비파괴측정에 의한 고속회전바퀴의 결함검출 기술연구
최만용(Choi, Man-Yong),김수언(Kim, Su-Un),박정학(Park, Jeong-Hak),안봉영(Ahn, Bong-young),신성용(Shin, Seong-Yong) 한국구조물진단유지관리학회 2010 한국구조물진단학회 학술발표회논문집 Vol.2010 No.2
In this study, we performed a dynamic simulation on the roller-coaster vehicle model and we determined the driving behavior. And we suggested a method of real time detection and evaluation by using the infrared thermography NDT.