Preliminary flood control and drainage study of the surrounding area of the second Bangkok International Airport, Thailand | |
| Author | Sakchai Thepkameay |
| Call Number | AIT Thesis no.WM-03-09 |
| Subject(s) | Drainage--Thailand Flood control--Thailand |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | Flood is a common phenomena in the Lower Chao Phraya River basin, the master plan of integrated flood damage mitigation in the Lower Chao Phraya River has been formulated in accordance with the "Monkey Check" concept for preservation of the present retarding effect and also, which the introduction of suitable flood mitigation measures. The Second Bangkok International Airport (SBIA) of an area of about 32 km2 at Nong Ngu Hao is constructed in a depression in low lying area. This reduces the flood storage. The drainage water pumped out from the airport will raise water levels in canal around the airport. The rapid development of urbanization causes further reduction of retention area, construction of roads and other landfill blocks the natural flows of water, and subsidence due to ground water pumping reduces the flow gradients. The flooding problems are deteriorated and prolonged in the study area, which has low drainage efficiency. It is therefore essential at this stage of Second Bangkok International Airport implementation program to formulate appropriate flood drainage infrastructure plans for the surrounding area of the Second Bangkok International Airpo1t (SBIA). In this study, the overall study area covers an area of 624 km2 in the flood plain area in the east of Bangkok surrounding the Second Bangkok International Airport. The flood control study is done based on hydrological and hydraulic approach. The return periods of rainfall used in the flood control study are 2-year, 25-year and 50-year. The mathematical model Mikeflood is used as a tool that integrates the one-dimensional model (Mike11) and the two-dimensional model (Mike 21) into a single, dynamically coupled modeling system for the study area. The flood control scheme in this study is a new drainage canal from Klong Samrong to drain water from the surrounding area of SBIA to Gulf of Thailand. The drainage capacity of the canal was designed by the Royal Irrigation Department of Thailand (RID) at 100 m3 Is. Diking along Klong Prawet and Klong Samrong was also recommended and designed by RID. In study process diking between Klong Samrong and Klong Prawet, can be able to prevent the amount of water from the north. However, the embankment dike along the Klong Samrong is found to block natural drainage flow to the south and induced accumulation of storage water in the vicinity south of the SBIA. Therefore the new drainage canal and only diking along Klong Prawet is also considered. The result from Mikeflood indicates that with the new drainage canal and dike along Klong Prawet, the flood level in the vicinity south of the SBIA is reduced by 3.00, 3.00, and 3.50 cm. after 3 days pumping when compared to the case without canal and diking for the design rainfall of 2, 25 and 50 year return periods respectively. |
| Year | 2004 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Tawatchai Tingsanchali |
| Examination Committee(s) | Babel, M. S. ;Dutta, Dushmanta |
| Scholarship Donor(s) | Royal Thai's Government, Thailand |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2004 |