Study of groundwater flow with underground dam : Phuket Island, Thailand | |
| Author | Das, Rupan Kanti |
| Call Number | AIT Thesis no.WM-97-02 |
| Subject(s) | Groundwater flow Underground construction |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. WM-97-02 |
| Abstract | Due to excess pumping, problem of seawater intrusion is very common in coastal areas causing the scarcity of adequate amount of freshwater supply even if the fresh water source (rainfall) is sufficient. Discharge of groundwater to the sea is another problem, which creates shmiage of groundwater resources. These problems can be encountered by groundwater resources development. Construction of underground dam is one way to solve those problems. This dam acts as an impermeable barrier to resist the natural groundwater flow phenomenon, which increases the storage capacity of the underground reservoir. Hence pumping of groundwater becomes possible without seawater intrusion. Here one practical case is studied to simulate the ground water flow with underground dam. Kriging technique is used to all the hydrogeological parameters. One geostatistical model, called GEOPACK is used for applicat'ion of luiging technique and Modular finite difference groundwater flow model, MODFLOW is used for simulation. The study is performed for an unconfined aquifer in two-dimensional XY plane and ve1iical variability of the aquifer parameters are ignored. Hence, the flow over the dam crest is balanced by allowing the equivalent amount of flow through the dam. This is done by modifying the hydraulic conductivity of the dam in such a way that the amount of water, whicq w~mld pass over the dam crest in ~ield, can pass through the dam in model. Finally it is observed that if there is no dam, around 4.32 MCM/a water can be pumped out from the aquifer without causing seawater intrusion and if the dam.is constructed, around 5.4 MCM/a water can be pumped out. |
| Year | 1998 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. WM-97-02 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Gupta, Ashim Das; |
| Examination Committee(s) | Suphat Vongvisessomjai;Loof, Rainer;Babel, Mukand Singh; |
| Scholarship Donor(s) | H. M. King, Thailand.; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1998 |