Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
권호 표지

Comparative Analysis of the Storm Sewer Expansion Methodology and Underground Rainwater Storage Tanks for Urban Flood Control

기존 도시의 홍수저감을 위한 우수관거 배수용량 증대 및 지하 빗물저류조 설치효과 비교 분석

  • Lee, Ho Yeol (Gyeongsangnam-do Insitute of Health and Environment) ;
  • Seo, Gyu Tae (Department of Environmental Engineering, Changwon National University) ;
  • Lee, Taek Soon (Department of Environmental Engineering, Changwon National University)
  • Received : 2013.04.18
  • Accepted : 2013.10.29
  • Published : 2013.11.30
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Abstract

Urban floods are usually caused by the lack of drainage capacity. Hence, sewer capacity expansion methodology by replacing small pipes with bigger ones is primarily applied as a flood control measure. However, this approach is often unreasonable because of the costs and time involved. Thus, the installation of underground rainwater storage tanks with the two advantages of flood control and water conservation is proposed. This study compared the effectiveness of flood control by both the sewer expansion methodology and rainwater storage tanks using the Storm Water Management Model. Three cases were simulated in this study. The first case analyzed flood reduction by the storm sewer expansion methodology. The simulation results indicate that the overflow volume from manholes was reduced by 49% with this methodology. The second case analyzed flood reduction by installation of rainwater storage tanks. The simulation results indicate that the overflow volume was reduced by 62%. However, these two cases could not prevent urban floods completely. Hence, the third case analyzed the joint application of the storm sewer expansion methodology and rainwater storage tanks. In this simulation, flooding did not occur. Consequently, the results of this study clearly show that underground rainwater storage tanks are more effective for flood control than capacity expansion of storm sewer. Furthermore, the joint application of these two flood control measures is more effective than their separate application.

Keywords

Acknowledgement

Supported by : 경남녹색환경지원센터

References

  1. Choi, H. G., Han, G. Y., Lee, J. E., and Jo, W. H. (2012). Study on Inundation of Underground Storage Facilities for Reducing the Flood Damage, Korean Society of Hazard Mitigation, 12(4), pp. 115-123. [Korean Literature]
  2. Choi, S. Y., Choi, C. G., and Jung, D. M. (2007). Sewer System Design and Review Measures for Flood Protection in Urban Areas, Korean Society of Hazard Mitigation, 17(4), pp. 137-146. [Korean Literature]
  3. Han, M. Y., Kum, S. Y., Mun, J. S., and Kwak, D. G. (2012). The Effect of Decentralizes Rainwater Tank System on the Reduction of Peak Runoff - A case Study at M Village -, Journal of Korea Water Resources Association, 45(1), pp. 65-73. [Korean Literature] https://doi.org/10.3741/JKWRA.2012.45.1.65
  4. Im, J. H., Yeoun, J. W., Han, H. G., and Song, J. W. (2006). A Study on Runoff Reducing Efficiency of Infiltration-Storage System Using Urban Runoff-Models, Proceeding of Regular Conference on Korean Society of Civil Engineers, Korean Society of Civil Engineers, pp. 238-241. [Korean Literature]
  5. Jung, J. H. and Yun, Y. N. (2007). Design Practice of Water Resource, Goomi Book. pp. 134-141. [Korean Literature]
  6. Hsu, M. D., Chen, S. H. and Chang, T. J. (2000). Inundation Simulation for Urban Drainage Basin with Storm Sewer System, Journal of Hydrology, 234, pp. 21-37. https://doi.org/10.1016/S0022-1694(00)00237-7
  7. Kim, J. H., Joo, J. G., Jun, H. D., and Lee, J. H. (2009). A Study of Swer Layout to Control a Outflow in Sewer Pipes, Korean Society of Hazard Mitigation, 9(1), pp. 1-7. [Korean Literature]
  8. Kim, Y. R. (2004). Application of Stormwater Detention Facilities for Reducing of Flooding Damage in Seoul, Seoul Development Institute. [Korean Literature]
  9. Lee, C. H., Han, G, Y., and Choi, G. H. (2006). DEM Based Urban Inundation Analysis Model Linked with SWMM, Journal of Korea Water Resources Association, 39(5), pp. 441-452. [Korean Literature] https://doi.org/10.3741/JKWRA.2006.39.5.441
  10. Lee, J. H., Jo, D. J., Kim, J. H., and Kim, E. S. (2007). An Analysis about Inundation and Carrying Capacity of Drain Pipes in Urban Area, The Korea Academia-Industrial Cooperation Society, 8(1), pp. 110-115. [Korean Literature]
  11. Lee, T. S. (2011). Rainwater Management Master Plan of the Changwon City, Gyeongnam Regional Environmental Technology Development Center, pp. 374-393. [Korean Literature]
  12. Ministry of Environment (MOE), (enacted by Ministry of Environment) Korea Water and Wastewater Works Association (KWWA). (2011). The Sewer Facility Standard, Korea Water and Ministry of Environment, pp. 31-46. [Korean Literature]
  13. Ministry of Land, Infrastructure and Transport (MOLIT). (2007). A Study on Application of Rainfall-runoff Model for Flood Control Policy, NO. 11-150000-002208-01, Ministry of Land, Infrastructure and Transport. [Korean Literature]
  14. Moriasi, D. N., Arnold, J. G., Van Liew, M. W., Bingner, R. L., Harmel, R. D., and Veith, T. L. (2007). Model Evaluation Guidelines for Systematic Quantification of Accuracy in Watershed Simulations, American Society of Agricultural and Biological Engineers, 50(3), pp. 885-900.
  15. Motovilov, Y. G., Gottschalk, L., Engeland, K., and Rohde, A. (1999). Validation of a Distributed Hydrological Model against Spatial Observation, Agricultural and Forest Meteorology, 8, pp. 257-277.
  16. Mun, J. S., Han, M. S., Ki, D. W., and Han, M. Y. (2005). Design of Rainwater Tank Capacity for Preventing Sewer Pipe Flood, Proceedings of the 2005 Spring Co-Conference of the Korean Society on Water Environment and Korean Society of Water and Wastewater, Korean Society on Water Environment and Korean Society of Water and Wastewater, pp. 420-423. [Korean Literature]
  17. Nash, J. E. and Sutcliffe, J. V. (1970). River flow Forecasting through Conceptual Models: Part 1. A Discussion of Principles, Journal of Hydrology, 10(3), pp. 282-290. https://doi.org/10.1016/0022-1694(70)90255-6
  18. Rossman, L. A. (2010). Storm Water Management Model User's Manual Version 5.0, United States Environmental Pretection Agency.
  19. Ryu, C. Y. and Lim, S. M. (2009). Runoff Analysis and Rainwater Tank Design on Urban Area, Korean Society of Hazard Mitigation, 9(4), pp. 49-53. [Korean Literature]
  20. Suwon City. (2010). Feasibility Study for Installation of Rainwater Management Facility, Suwon City, pp. 36-37. [Korean Literature]