논문 상세보기
pp.65-74
PURPOSES : This study was conducted to prevent road thinning ice caused by abnormal weather conditions.
METHODS : The appropriate amount of de-icer spread rate was verified by presenting the appropriate amount of snow removal agent spraying criteria for the thickness of the water film, owing to abnormal weather phenomena (fog, frost), and applying the standards to the site. Furthermore, we present a method to utilize residual salt, by quantifying the surface state changes according to the amount of deicer.
RESULTS : Precautionary spread experiments to prevent road thin ice caused by abnormal weather conditions, indicated no freezing from 7.6g/m2 at 2℃-4℃ but 11.1g/m2 was suggested as a step higher considering external environmental variables. The amount of spraying was presented in two sections of rainfall(freezing rain). It is 17.7g/m2 at 0-7℃, 33.3g/m2 at -7~ -15℃, and 44.4g/m2 and 51.1g/m2 at non-urban, respectively.
CONCLUSIONS : The criteria were divided into air temperature and road temperature standards, so that they could be distributed according to the temperature standards that meet the conditions, and the criteria presented were confirmed to be effective in preventing road thinning ice. If the road manager adopts Safety Line, which is suggested by utilizing the amount of residual salt on the road, it is believed that it can help determine the additional deicer.
1. 서론
1.1. 연구의 내용
2. 실험방법
2.1. 서리, 안개 예비살포 실내 실험
2.2. 강우·강설 시 실내실험
2.3. 실외 실험
3. 실험 결과
3.1. 서리, 안개 예비살포 실내 실험 결과
3.2. 강우·강설 시 실내 실험 결과
3.3. 도로잔존염분량을 활용한 Safety Line 제시
4. 실외 실험
4.1. 서리, 안개 예비살포 실외 제설제 살포량 검증
4.2. 강우·강설 시 실외 제설제 살포량 검증
5. 결론
감사의 글
REFERENCES
