| Author | Chaiyuth Chinnarasri |
| Call Number | AIT Thesis no.WA-90-7 |
| Subject(s) | Sediment transport--Mekong River
|
| 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 | Due to the problems of bank scouring and deposition at river
bends a nd shifting of the Mekong river between Vientiane and
Nong Khai, it is necessary to construct a bank protection work
within this reach. These river bank protection work s are designed
in this study. Three locations where serious problems occurred are
selected at Ban Wat That, Ban Veun, and Ban Ponsa. The lenght of
bank protection work is about 1 km long at each location. The
type of protection work selected is bank revetment which has
insignificant adverse effect on the opposite bank. In the design,
the toe level of the bank revetment is based on the lowest water
level, the average river cross section, and the computed
transverse bed slope. The formulae of Odgaard, Falcon-Kennedy ,
and Kikkawa et al are used in computing the transverse bed slope.
The 74 years (1 913-1987) mean discharge is used in calculating
this transverse bed slope. The geometry and slope of the bank
revetment depends on the the toe level , the natural bank
elevation, the natural bank slope, and the range of revetment
slope suggested by Jansen (1979). The design of riprap size is
based on the near bank velocity calculated by the Odgaard
approaches using the measured flow velocity data in 1990 and the
highest maximum flood data in 1966. a nd one of the following
formulae namely : Jansen (1979), California Division of Highways
(1970), and Maynord (1989) . Both granular and geotextile filters
are considered in the design. The design of filter depends on the
bank soil gradation and the riprap size. After all, the stability
of the bank revetment is checked by using the simplified Bishop
method based on the geometry and s lope of bank revetment, bank
soil condition, lowest river level, and ground water level. The
results show that all the bank revetments designed in this study
are stable. |
| Year | 1990 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Water Resources Research Engineering (WA) |
| Chairperson(s) | Tawatchai Tingsanchali |
| Examination Committee(s) | Suphat Vongvisessomjai ;Loof, Rainer
|
| Scholarship Donor(s) | The Government of New Zealand |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1990 |