| Author | Lo, Kam Hung |
| Call Number | AIT Thesis no. GT-89-05 |
| Subject(s) | Soil consolidation test
|
| 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-89-05 |
| Abstract | The present study attempts to understand the mechanism of
interaction between welded wire mesh-type reinforcement and
low -quality cohesive backfill. Field pullout tests were
performed on dummy reinforcements embedded in a full scale
model of welded wire wall I reinforced soil test embankment
system utili zing three different low-quality backfill
materials, namely: clayey sand , lateri tic soil , and weathered
clay backfill. An advanced data acquisition system that is
capable of automatically recording the pullout force applied to
t h e reinforcing element , t h e displacement of the reinforcing
element , and the strains produced in the reinforcing element
during a pullout test, and an electrically controlled loading
application system were used. The investigation revealed that
the pullout resistance of reinforcements with clayey sand
backfill is much higher than that with lateritic soil and
weathered clay backfill. It was also observed that the
magnitude of mobilized pullout resistance as well as strains
induced in the reinforcing element were strongly influenced by
the variation of the base pressure resulting from arching
effects and the deformation of the soft clay subsoil beneath
the wall/embankment system. The comparison between the field
and laboratory pullout results indicated that the laboratory
pullout tests generally provided a conservative approximation
of actual pullout resistance of bar-mat reinforcement in the
low-quality cohesive backfill. Finite element analyses were
also done to simul ate and verify the load-displacement response
to the experimental pullout test results and the behaviour of
the welded wire wall/reinforced soil embankment. The overall
agreement between the experimental and analytical results from
finite element analyses is quite satisfactory. |
| Year | 1990 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GT-89-05 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Geotechnical and Transportation Engineering (GT) |
| Chairperson(s) | Bergado, Dennes T.; |
| Examination Committee(s) | Honjo, Yusuke ;Noppadol Phienweja ; |
| Scholarship Donor(s) | Marden's Family, Hong Kong; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1990 |