| Author | Myat Myat Phyo Phyo |
| Call Number | AIT Thesis no.GE-10-08 |
| Subject(s) | Embankments
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Geotechnical and Geoenvironmental Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-10-08 |
| Abstract | This study involved both laboratory and field tests using two natural fibers called limited life geotextiles (LLGs) for erosion control and reinforcement of embankment on soft ground. In laboratory test, mass per unit area and tensile strength of kenaf and water hyacinth LLGs were obtained. The properties of sand backfill materials were also investigated including sieve analysis, compaction, direct shear and consolidated undrained triaxial tests to determine appropriate soil properties. In addition, field vane shear tests were conducted for the soft clay foundation. Furthermore, 1-D consolidation tests were performed on undisturbed soft clay samples from 3m and 6m depths. According to their mechanical properties, kenaf LLGs is suitable for reinforcement of embankment and water hyacinth geotextile is appropriate for erosion control. Accordingly, a series of pullout tests and large scale direct shear tests were performed for kenaf LLGs as well as permittivity and transmittivity tests were performed on water hyacinth LLGs. The results show that the pullout resistance on woven kenaf LLGs increased with increasing normal pressures and the transmissivity for water hyacinth LLGs decreased with applied confining pressure. Finally, full scale test embankment was constructed in the field reinforced with kenaf LLGs. Erosion control was installed at the embankment slope surface using water hyacinth LLGs. Moreover, the settlement data were monitored and the stability of the test embankment was determined. There were close agreement between the measured and predicted settlements. In addition, the kenaf LLGs reinforcements increased the factor of safety values of the embankment on soft ground. |
| Year | 2011 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-10-08 |
| 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) | Bergado, Dennes T.; |
| 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, 2011 |