| Author | Pham Thi Viet Nga |
| Call Number | AIT Thesis no.GE-07-11 |
| Subject(s) | Subsidences (Earth movement)--Vietnam--Ho Chi Minh
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| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Masters of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-07-11 |
| Abstract | Ho Chi Minh City is the largest economic, commercial and technological center of Vietnam. The fast population growth and technological developments in HCMC have created a continuously increasing demand for potable and industrial water supply. Before, HCM city has mainly used surface water from Dong Nai and Sai Gon River for water supply. But since 1995 ground water has been strongly exploited and becomes the most important component for the city's water supply. The warning about depletion of aquifers were given, and evidences like flooding, casing protrusion pointed out that Ho Chi Minh city are subsiding due to heavy withdraw of ground water. In this study, a large amount of data on geology, hydrogeology and geotechnical were collected to bring out the hydrogeological model, subsoil profile with twelve layers and a database of Ho Chi Minh subsoil characteristic was constructed by Rockworks 2006 software. Based on the recorded change of observed groundwater levels with time, the drawdown was calculated. From the available geotechnical data, a detailed soil characterization was done to evaluate the soil characteristics at Ho Chi Minh city. The data after processing were used as input data to land subsidence analysis by TZP program (Giao, 1997). Settlement analysis at two selected locations at District No.7 and Binh Chanh district were performed with the equivalent drawdown for 10 years and the maximum drawdown in 2006. The results show the subsidence of 1.02m and 0.62m at two sites respectively with the equivalent drawdown for 10 years. In the case of maximum drawdown in 2006, the total settlements reach 1.8m for the first site at District No.7 and 1.2m at the second site |
| Year | 2008 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-07-11 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical Engineering (GE) |
| Chairperson(s) | Pham Huy Giao; |
| Examination Committee(s) | Noppadol Phien-wej;Park, Kyung Ho; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |