| Title |
A Comparative Study on Productivity Analysis of Automated Pavement Crack Sealing Machines |
| Authors |
서원중(Seo, Won-Jung) ; 유현석(Yoo, Hyun-Seok) ; 김영석(Kim, Young-Suk) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.4.1289 |
| Keywords |
생산성 측정 모델;크랙실링 자동화 장비;테스트베드;크랙실링 공법 Productivity measurement model;Automated crack sealer;Test-Bed;Crack sealing |
| Abstract |
The river water intake system composed of the filter block, without installation of weirs in a channel, was proposed. To apply it to rivers, analysis of hydraulic characteristics is needed. In this study, the hydraulic experiment on the characteristics of flowrate passing through the river water intake system was carried out. The filter block was produced using riprap and stainless steel bead at the channel bottom. The experiment was carried out under various flow conditions and the flowrate passing through the intake system was measured. As the water depth approaching the intake system became deeper, the flowrate diverting to the intake system increased. As the Froude number increased, the flowrate diverting to the intake system decreased. The same trend was shown regardless of the characteristics of a filter block in the intake system. A constant discharge coefficient was shown regardless of the Froude number but it changed according to the size of a riprap and a stainless steel bead in the filter block. It was found that the discharge coefficient increases with the 0.6 power of the material size. |