| Author | Hoang Ngoc Khai |
| Call Number | AIT RSPR no.PME-GEM-18-01 |
| Note | A research study submitted in partial fulfillment of the requirement for the
degree of Master of Engineering (Professional) in
Geotechnical and Earth Resources Engineering
with Area of Specialization in Geotechnical Engineering and Management, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Hanoi Urban Mass Rapid Transit system is being developed in line with the Prime Ministers Decision approving the transport of Hanoi by 2030 and vision to 2050. In this study, the data were collected from geotechnical soil and investigation work and report conducted by Union of Survey Companies (USCO) and were processed and analyzed for detailed soil characterization along the 3rd UMRT line in Hanoi. First, a subsoil profile was completed, classified and constructed based in geotechnical data from 17 boreholes. The subsoil profile consist of following layers from the surface downward: Layer 1 is a filling soil, layer 2 is stiff to very stiff clay, layer 3 is soft clay, layer 4 is medium dense to dense silty sand, layer 5 is dense to very dense fine to medium sand, sometime mix gravel and layer 7 is very dense poorly graded gravel with sand. For clay layer, correlations between compression index, undrained shear strength and water content, void ratio, liquid limit were investigated. Land subsidence prediction along UMRT line No.3 has been performed using the observed groundwater drawdown in nearby the 3rd UMRT line as boundary conditions. The 1D FEM consolidation analysis were done using TZP program developed by Giao (1997). The subsidence analyses were carried out with drawdown of 5 m; 10 m; 15 m; 20m as boundary condition analysis. At the location of BH01, which the soft clay is thickest and there is no doubt that effect of subsidence along the UMRT line No.3 has to be affected, especially where were drawdown occur. |
| Year | 2019 |
| 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) | Kuo-Chieh ChaoNoppadol Phien-wej; |
| Scholarship Donor(s) | FECON Company, Vietnam; |