| Author | Wasu Likitwanagarn |
| Call Number | AIT Thesis no. GE-95-13 |
| Subject(s) | Vertical drains
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of
Engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-95-13 |
| Abstract | In the Thailand Department of Highways (DOH) Projects of the, Second BangkokChonburi Highway and Outer Bangkok Ring Road Projects, the preloading with prefabricated
vertical drain (PVD) were used to improve the subsoil layer. The instrumentation were installed
to measure the behaviour of foundation soil under the highway embankment loading in the field.
The observed settlement data were considered to provide us with reliable and direct information
which are representative of the soil mass in the subsoil. In this study, soil parameters were
determined by back-calculation. ASAOKA method was used to back-calculate the soil
parameters from the monitoring data. The back-figured horizontal coefficient of consolidation
(C11) was used to predict the amount and rate of settlements. Good agreement were obtained in
case of ASAOKA method. One-dimensional and SKEMPTON & BJERRUM method were
slightly higher in both highway embankment except section 2A/1 of SBCH which is rather high.
The back-calculated C11 value of SBCH range from 8.6 to 87 m
2
/yr and 11 to 40 m
2
/yr for OBRR.
The alternative construction sequence were predict by using the back-figured soil parameters in
combination with SHANSEP method. The preloading time was reduced to about 2 to 4 months
using the alternative construction sequence compared to the original proposed one |
| Year | 1996 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-95-13 |
| Type | Thesis |
| School | School of Civil Engineering |
| 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 ;Sugimoto, M. |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 1996 |