Effects of river bed dredging on water levels downstream of Chao Phya dam | |
| Author | Sharif, Md. Ali Rob |
| Call Number | AIT Thesis no. 939 |
| Subject(s) | Sediment transport Rivers |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering at the Asian Institute of Technology Bangkok Thailand. |
| Publisher | Asian Institute of Technology |
| Abstract | The effects of river bed dredging on the water levels downstream of the Chao Phya Dam are investigated using a mathematical model during the period of low flow. The model consists of the unsteady free surface flow equations which are solved numerically using the finite difference approximation of implicit scheme. The applicability' of the model in describing the rive r flow is verified against the observed the river flow conditions during the period of low flow in the past few years. The river bed is then dredged, firstly, for navigation purpose and secondly, for procuring construction sand. The dredging is performed with different alternatives with the limitations that the minimum 3 depth occurred must be greater than 1.4 m when the discharge is 75 m /s and the drop in water level at the tail of the Chao Phya Dam must be less than 20 cm. The effects of river bed dredging on the water levels and depths as well as their changes downstream of the Chao Phya Dam are presented and discussed. Recommendations on the appropriate river bed dredgings are given. |
| Year | 1976 |
| Type | Thesis |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Arbhabhirama Anat ;Tawatchai Tingsanchali |
| Examination Committee(s) | Suphat Vongvisessomjai |
| Scholarship Donor(s) | The Netherlands Government |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 1976 |