| 摘要 |
<p>The present invention relates to a duct rehabilitating method. The method comprises a process of watering the inside of a duct; a process of removing foreign substances in a longitudinal direction after the watering process; a process of removing foreign substances in a transverse direction after the process of removing the foreign substances in the longitudinal direction; a process of cleaning the duct after the process of removing the foreign substances in the transverse direction; a process of painting the duct after the cleaning process; and a process of completing rehabilitation after the painting process. At this point, a process of spraying a foreign substance autolysin is more included after the process of removing the foreign substances in the longitudinal direction. A process of removing moisture is more included after the cleaning process. A process of injecting hot air is more included after the painting process. Therefore, quality and constructability are collectively improved.</p> |
