Abstract
Climate change has increased rainfall events and, consequently, the sedimentation of soil and debris in drainage. The decrease of discharge cross-section can cause sediment disaster due to drainage overflowing. Moreover, it can create inundation damage due to the inflow of soil and debris into sewerage. Therefore, a maintenance plan is required to treat the soil and debris in order to secure the function of drainage. However, there are not enough design standards. This study analyzed the relationship between rainfall characteristics and the sedimentation of soil and debris flowing into drainage by monitoring an experimental basin. Monitoring results showed that drainage maintenance were required when total rainfall was equal to or larger than 30 mm or maximum rainfall intensity was equal to or higher than 9 mm/hr. In addition, a formula for estimating the amount of debris sedimentation according to total rainfall is suggested.
| Translated title of the contribution | A Study on the Drainage Maintenance Plan with Considering Rainfall Characteristics |
|---|---|
| Original language | Korean |
| Pages (from-to) | 297-304 |
| Number of pages | 8 |
| Journal | 한국방재학회논문집 |
| Volume | 17 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jun 2017 |