Groundwater development for the Bac and Thanh Industrial Zone, Long An Province | |
| Author | Vu Van Thuy |
| Call Number | AIT RSPR no.PME-GEM-11-06 |
| Subject(s) | Groundwater--Vietnam--Long An Hydrogeological modeling--Vietnam--Long An |
| Note | A research study submitted in partial fulfillment of the requirement s for the degree of Master of Engineering (Professional) in Geotechnical Engineering and Management |
| Publisher | Asian Institute of Technology |
| Series Statement | |
| Abstract | Bac An Thanh Industrial Park located in Long An Province, Vietnam has been under constructed for which the water supply is very important. Excepting for the groundwater, surface water is almost contaminated with salting water. Therefore, an exploration study for assessing groundwater reserves is therefore nee d to satisfy the demand of water supply now and in the future. This research aims to investigate the groundwater system in the Bac An Thanh industrial Park to propose a plan for groundwater development. The reaseach found out that groundwater in Bac An Thanh Industrial Park exists in 6 water bearing formations which are separated by 5 low-permeability layers. In which, the aquifer n 2 2 characterized as a high well yield and meet the water quality standard is shown the best water resource supplied to the industrial park. The hydrogeological parameters of the aquifer n 2 2 based on the pumping and step drawdown tests were found as: Transmissivity T = 618.8 m 2 /day; Storage coefficient S = 1.14 x10 -3 ; Specific storage Ss = 1.66x10 -5 m -1 and Hydraulic conductivity: K = 9.02 m/day. The analytical result s show that after 27 years of exploiting, dynamic water levels in wells at the study area are predicted to vary from 40.46- 46.06 m under the ground, smaller than permited levels. In which, the lowest dynamic water level is determined for AT2 well which has the highest yield and located in the center of well field. Meanwhile, projection modeling results show that the wells with the lowest dynamic water level are AT1 and AIT2 which are located in the center of the well system and at the highest flow rate. After 27 years, the water level is at 45.2-45.37m under ground. This result is approximate and slightly lower than the analytical result. It is because that taking account of leakage coefficient into the model cause s decline water level in exploited wells. However, since the grid area has high well yield fo r a long time ago, leakage is almost equilibrium and negligibly affect the well drawdown . Based on the well drawdown over time predicted, the exploiting plan for each supply well can be drawn. |
| Year | 2012 |
| Corresponding Series Added Entry | |
| Type | Research Study Project Report (RSPR) |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical Engineering and Management (Master Engineering (Professional)) (PME - GEM) |
| Chairperson(s) | Pham Huy Giao |
| Examination Committee(s) | Bergado, Denes.T.;Noppadol Phien-wej |
| Scholarship Donor(s) | Nam Khang Consultant JS Co., Vietnam |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 2011 |