1 AIT Asian Institute of Technology

Yielding of soft Bangkok clay below the state boundary surface under compression conditions

AuthorGurung, Sukh Bahadur
Call NumberAIT Thesis no. GT-91-11
Subject(s)Clay--Thailand--Bangkok--Testing

NoteA thesis submitted in partial fulfillment of the requirements for the Degree of Master of Engineering, School of Engineering and Technology
PublisherAsian Institute of Technology
Series StatementThesis ; no. GT-91-11
AbstractYielding of Soft Bangkok Clay at states below and on the State Boundary Surface has been studied under compression loading conditions. The experimental programme includes isotropic consolidation and swelling tests with conventional undrained and p-constant tests at different overconsolidation ratio within the State Boundary Smface. Based upon the plastic volumetric yielding as observed in the experiments canfod out, the region within the State Boundary Surface has been divided into four zones. In zone one, the volumetric strain is purely elastic and is close to the p-axis. In zone two, plastic volumetric strain is compressive, whereas in zone three both compressive and dilational (expansive) plastic volumetric strains are developed. In zone four the plastic volumetric strain is purely dilational in nature. The plastic strain increment ratio on a particular stress ratio line was found to depend on the normalized mean normal stress and was associated with yielding behavior of clay in side the State Boundary Surface. On the basis ofdistortional strains noted in conventional undrained and p-constant drained test the analysis within the State Boundary Smface can be considered as a linear one irrespective of drainage condition by adopting a suitable factor of safety. The experimental results from this investigation will provide useful contribution toward the formulation of theories dealing with "associated and non-associated flow rule" as generally envisaged in the elasto-plastic behavior of soil
Year1991
Corresponding Series Added EntryAsian Institute of Technology. Thesis ; no. GT-91-11
TypeThesis
SchoolSchool of Engineering and Technology (SET)
DepartmentDepartment of Civil and Infrastucture Engineering (DCIE)
Academic Program/FoSGeotechnical and Transportation Engineering (GT)
Chairperson(s)Balasubramaniam, A. S.;
Examination Committee(s)Seah, T. H.;Bergado, D.T.;
Scholarship Donor(s)Government of Australia.;
Degree{"isvarfieldcopied":1,"ismarc":1,"tag":"n","label":"NOTE","marctag":"502","marcindicator1":" ","marcindicator2":" ","content":"Thesis (M.Eng.) - Asian Institute of Technology"}


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