| Author | Wang, Wan Zhan |
| Call Number | AIT Thesis no. WM-00-06 |
| Subject(s) | Sediment transport--Chao Phraya River (Thailand)
|
| Note | A thesis submitted in partial fulfillment of the requirements
for the degree of Master of Engineering, School of Engineering and Technology
|
| Publisher | Asian Institute of Technology |
| Abstract | Studies on the change in sediment regime in the lower Chao Phraya River due to the
construction of the dams in the upper basins have been very scare. The data available for the
rigorous studies are also quite limited under these conditions. A method for approximate
estimation of the sediment transport and subsequent evaluation of the change in the sediment
regime has been made in the study. The method includes four steps in which the relationship
between the ratios of the bed-material rates (Sc) to the suspended ones and the discharges is
first developed. The monthly Sc is computed by using Engelund-Hansen formula. The
suspended rates to be desired are calculated by the calculated Sc and the established
relationship.
Compared with the measured transports in the rainy season in 1962 at the river mouth
and Bangsai about 116 km upstream of the river mouth, the calculated mean ones in 1976-
1996 show 29% and 32% reductions, respectively, while the corresponding reduction at
Nakon Sawan 379 km upstream of the river mouth is 84%. The reductions are caused by the
reduction in flow (about 34%) and the sediment trapping by the large-scale dams such as the
Bhmipol dam ·and the Sirikit dam. |
| Year | 2001 |
| 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) | Suphat Vongvisessomjai |
| Examination Committee(s) | Sutat Weesakul ; Izumi, Norihiro ;Nguyen Huu Thoi
|
| Scholarship Donor(s) | Government of Japan |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2001 |