| Author | Chokechai Ukritchon |
| Call Number | AIT Thesis no.GT-92-02 |
| Subject(s) | Soils--Thailand--Bangkok--Testing
|
| Note | A thesis submitted in partial fulfillment of the requirements for
the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GT-92-02 |
| Abstract | Piezocone is considered to be a more advanced in-situ testing device. It was first
introduced at AIT together with a new data acquisition system. Supporting components
like the depth wheel and the special thrust adaptor were manufactured and used in the
study. New methods of saturating porous stone was also introduced to produce highly
saturated porous stone. New piezocone testing procedure has been developed and
employed to reduce the setup and testing time. Computer programs were also developed
to accelerate data processing and data interpretation. In addition, better data presentation
is also established.
Ten (10) piezocone tests were performed at AIT Test Site A, giving very consistent
and repeatable results in terms of the cone resistance, the sleeve friction and the pore
water pressure. Two methods of soil classifications are used, yielding very similar soil
profiles. In summary, the upper 2 m consists of weathered crust, followed by a layer of
soft clay with a thickness of 6.5 m. Stiff clay is found between 8.5 and 11.5 m depth. Below
11.5 m, the material found is mainly sand. Using Nk = 9, the estimated Su values for the
soft clay match well with the reported values from dilatometer and field vane tests. The
estimated effective friction angle of the sandy soil from piezocone tests at depths of 11.5
to 15 m is slightly higher than the friction angle estimated from standard penetration test.
But from 15 to 20 m depth, the estimated friction angle of 370 from piezocone test is in
good agreement with results obtained from standard penetration tests as well as the results
from triaxial tests. |
| Year | 1993 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GT-92-02 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical and Transportation Engineering (GT) |
| Chairperson(s) | Tian Ho Seah;Bergado, Dennes T.; |
| Examination Committee(s) | Balasubramaniam, A.S.;Noppadol Phien-Wej;Honjo, Yusuke; |
| Scholarship Donor(s) | German Academic Exchange Services (DAAD); |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1993 |