| Author | Rahman, Md. Shafiqur |
| Call Number | AIT Thesis no. AE-97-2 |
| Subject(s) | Wells--Bangladesh
|
| Note | A thesis submitted in partial fulfilment of the requirements for the degree of
Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | Ground water is a renewable resources and plays an important role in the
development program all over the world. This is particularly important for the development of
agriculture where surface water is very limited and seasonal. The study area ' Barind Tract' of
Bangladesh has very limited surface water and non-uniform rainfall. So ground water
exploitation for irrigation is being practiced for last several years through Deep Tubewells.
In BARIND Tract, a number of tubewells have been sunk for pumping water for
irrigation. However, no study in the past has been done to verify that whether the aquifer is
suitable for exploiting water for irrigation or not, whether the present tubewells are operating
properly or deteriorating, whether the design is correct or not. So this study was conducted for
selected wells to know the present situation and to provide some important parameters for the
planners for better decision in future and also for the maintenance of the existing wells.
In all, 16 randomly selected wells were tested in this study. Step-drawdown pumping
test was conducted to obtain the useful aquifer parameters and to evaluate the well
performance. Analysis of the pumping test data was done to find out the transmissivity of the
aquifer, well loss, aquifer loss, well deterioration index. At the same time the operational
record of the wells was also analyzed to study the time based reliability.
ยท From the study it was found that the aquifer in the study area is suitable for irrigation
purpose. Some tubewells seems to be deteriorating with time but others are improving. Some
design defects were reported due to improper selection of screen size and slot opening, which
should be noted for the design of new wells in this area.
Recommendations and future suggestions have also been given to take necessary
action for the smooth running of the tubewells in the study area. |
| Year | 1997 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Salokhe, V. M.; |
| Examination Committee(s) | Gee-Clough, David ;Gupta, Ashim Das ; |
| Scholarship Donor(s) | DANIDA; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1997 |