http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
철도노반 복구를 위한 토목섬유 Soilbag 공법의 적용성 평가
황선근,고태훈,박성현,Hwang, Seon-Keun,Koh, Tae-Hoon,Park, Sung-Hyun 한국방재학회 2004 한국방재학회논문집 Vol.4 No.1
자연재해에 기인한 철도노반의 유실 및 파괴는 유실된 선로복구를 위한 공사가 장기간 소요됨으로써 정상적인 철도운행에 지장을 초래하여 사회적, 경제적으로 많은 비용 및 시간의 손실을 유발시키고 있다. 본 연구에서는 자연재해로 인해 유실된 철도노반에 대한 신속하고 안전한 복구대책으로서 토목섬유로 제조된 Soilbag의 적용성을 평가하고자 정적하중 및 모사반복 열차하중 재하 실대형시험을 수행하였다. 실대형시험을 통해 심도별 연직토압과 침하량을 계측한 결과, 하중분산효과에 기인한 토압 및 침하 저감 효과를 확인할 수 있었으며 시공성과 장기적 안정성을 고려할 때 Soilbag 공법의 현장적용성은 가능할 것으로 판단된다. Roadbed failure due to the natural disaster may bring out social and economic damage such as the loss of life and property, the consumption of time and cost for recovery, and the delay of logistics in railway In this study, the method using geosynthetic soilbag was applied to rehabilitation of the railway roadbed which was failed by disaster. The full scale tests with the simulated train loading were performed in order to evaluate the static and dynamic performance at the railway roadbed using geosynthetic soilbag. The results of these tests were compared with unreinforced and reinforced cases with geosynthetic soilbag, respectively The data gathered by various measurement devices from these full scale tests would be useful to evaluate and understand the roadbed with geosynthetic soilbag. In conclusion, geosynthetic soilbag was evaluated as a permanent restoration method to reinforce the roadbed of railway.
황선근(Hwang Sun-Keun),신민호(Shin Min-Ho),이성혁(Lee Seong-Hyeok),이시한(Lee Si-Han),최찬용(Choi Chan-Yong) 한국철도학회 2000 철도저널 Vol.3 No.1
The analysis of static and dynamic characteristics of reinforced roadbed materials was performed through model and laboratory tests. The strength characteristic of reinforced roadbed materials such as HMS-25 and soil were investigated through the unconfined axial compression test, the model soil box test and the combined resonant column and torsional shear test. The unconfined axial compression strength of HMS-25 shows a steady increasement in strength due to the chemical hardening reaction between HMS-25 and water. The result of model soil box test reveals that railroad roadbed of HMS-25 is better than that of soil in several aspects, such as, bearing capacity and settlement. The combined resonant column and torsional shear test result indicates that shear modulus of HMS-25 and soil increase with the power of 0.5 to the confining pressure and linear relationship to normalized shear modulus and damping ratio.
ActiveX 컴포넌트를 이용한 철도 지반정보 관리프로그램의 개발
황선근(Hwang Seon-Keun),이성혁(Lee Seong-Hyeok),김현기(Kim Hyun-Ki),김정무(Kim Jung-Moo) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
The railroad geotechnical management system using ActiveX component is developed In this study. Component software is realized as a way that can offer good productivity and stability in software production through maximizing the reusability of software. Developed component software is very useful in saving to much time required for the development, increasing the re-usage rates, utilizing the component per function and substantially reducing the expenses for the tests and the error corrections. In addition, since it is easy to replace with other types of components that satisfy the needs of users, we can easily customize the applications.
모사반복 열차하중 재하시 토목섬유 콘테이너의 동적 성능
황선근(Hwang Seon-Keun),고태훈(Koh Tae-Hoon),박성현(Padrk Sung-Hyun),최찬용(Choi Chan-Yong) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
Roadbed failure due to the rainfall may bring out social and economic demage such as the loss of life and property, the consumption of time and cost for recovery, and the delay of logistics in railway. In this study, the method using Geotextile Container was applied to rehabilitation of the railway roadbed which was failed by rainfall. The real scale tests with the simulated train loading were performed in order to evaluate the dynamic performance at the railway roadbed using Geotextile Container. The results of these tests were compared with unreinforced and reinforced cases with Geotextile Container, respectively. The data gathered by various measurement devices from these real scale tests would be useful to evaluate and understand the roadbed with Geotextile Container. Furthermore, the results of this study would be useful to ensure the workability and to save much time for restoration and to be widely applied to practical use.
황선근(Hwang Seon-Keun),이진욱(Lee Jin-Wook),조성호(Joh Sung-Ho),오상덕(Oh Sang-Duk) 한국철도학회 2002 한국철도학회 학술발표대회논문집 Vol.- No.-
At the present time, civil structure based of aseismatic design in the Korea began about 1997. However, most of the railway bridge constructed with block and block in the past can easily deteriorate with time due to the increase of repeated traffic loading, increase of train speed, etc. In this study, soil properties of the substructure of railway bridge with block and block was investigated through the SASW(Spectral Analysis of Surface Waves) and RCTC test in the field and laboratories. Also, stabilization of liquefaction after occurred earthquake was investigated through the Seed & Idress method use of N value and Andrus and Stoke method use of S-Wave velocity.
반복재하 하중을 받는 철도노반재료의 강우에 따른 침하 특성
황선근(Hwang Seon-Keun),최찬용(Choi Chan-Yong),이진욱(Lee Jin-Wook),오상덕(Oh Sang-Duk) 한국철도학회 2001 한국철도학회 학술발표대회논문집 Vol.- No.-
In this study, performance of reinforced railroad roadbeds with the slag(HMS-25) and soil were investigated through the real scale railroad roadbed tests. Several real scale reinforced railroad roadbeds were constructed in the laboratory with different subgrade conditions and were tested with the estimated actual train loads including the impact loading of train. The affecting factors such as plastic & elastic settlement roadbed layers as well as surface of rails were measured. The settlement at rail surface and roadbed surface of case of soil and slag roadbed comparative with good roadbed site were 2.3, 5.7 times and 1.9, 1.6 times, respectivelv.
황선근(Hwang Seon-Keun),엄기영(Eum Ki-Young),고태훈(Koh Tae-Hoon) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
In this study, field measurements and analysis of vibration before and after the installation of continuously welded rail were performed. The vibration data obtained at the same locations before and after were analyzed to find out the characteristics of vibration level. The component of train-induced impulsive vibration at the rail joints varies depending upon the distance from the source, however mostly low frequency vibration which propagates long distance causes the problems of vibration. Even though it is expected that there may be certain degree of discrepancy in the amount of reduction in vibration depending upon site ground conditions, it was found that installation of continuously welded rail shows reduction in train-induced vibration.