Application of bentonite slurry and polymer-based slurry to wet-process bored piles construction in Bangkok multi-layered soil | |
| Author | Yee, Ong Chin |
| Call Number | AIT Thesis no.GE-06-02 |
| Subject(s) | Bentonite slurry Slurry--Thailand--Bangkok Piling (Civil engineering) |
| 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-06-02 |
| Abstract | This study presents the performance of bentonite, polymer and polymer-based slurries through various laboratory tests. The laboratory tests were carried out in order to determine the basic properties of various slurries in different mix ratio. The laboratory tests were also performed to determine the filtration properties of slurries through first sand and second sand layer of Bangkok subsoil, thickness and shear strength of filter cake formed in various slurries after 24hours, 48hours and 72hours of elapsed time. Settling behavior of sand particles in slurries was included in this study. The field data of past projects with the application of polymer-based slurry in Bangkok, Thailand were gathered and reviewed. The analyses including load distribution along pile shaft, unit skin friction mobilized at maximum test load and pile settlement. Shaft friction factor, ยข of the first sand and second sand layers and adhesion factor, a for clay layers in subsoil of Bangkok were back-calculated from the load transfer data of relevant layers obtained from Vibrating Wire Strain Gauge (VWSG) data. These' values are corresponds to the working load level of the test piles. For first sand layer, the back-calculated (3 value were in range of 0.25 to 0.38, while for second sand layer, the back-calculated a value were in the range of 0.1 to 0.40. The back calculated adhesion factor, a for clay layers range from 0.42 to 0.55 for undrained shear strength of 98kN/m2 to l 70kN/m2 |
| Year | 2006 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-06-02 |
| 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) | Noppadol Phien-Wej; |
| Examination Committee(s) | Bergado, Dennes T;Park, Kyung-Ho; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2006 |