1 AIT Asian Institute of Technology

Cyclic deformation and strength characteristics of soft Rangsit clay

AuthorHa, Kwang Hyun
Call NumberAIT Thesis no.GT-83-18
Subject(s)Clay--Thailand--Rangsit--Testing
NoteA thesis submitted in partial fulfillments oi the requirements for the degree of Master or Engineering, School of Engineering and Technology
PublisherAsian Institute of Technology
AbstractA series of cyclic triaxial tests were carried out on undisturbed samples to clarify the cyclic .behavior of Bangkok (Rangsit) soft clay. Based on the tests results obtained from the cyclic tests employing different conditions , tile effects of confining stress and initial shear stress on the cyclic properties o f clay, such as excess pore water pressure built-up, s h ear strain development, cyclic strength, shear modulus and damping ratio, were investigated. The results showed that t he in creasing rate of excess pore water pressure decreases with increase in confining stress, and less excess pore water pressure is built up under the condition with init1ai shear stress than without initial shear stress. With increase in initial shear stress, the stress-strain curve was flattened to some extent. The cyclic strength expressed by the stress ratio was higher in the test with 1.0 Kgf/cm2 confining stress, while the cyclic strength expressed by· the deviator stress was higher in the test with l.5 kgf/cm2 confining stress. It was vague to tin d out any dependency or initial shear stress a nd effective continuing stress on the s hear modulus and damping ratio , in general, however, the shear modulus decreased and damping ratio increased with increasing axial strain. The shear modulus was distributed in the zone obtained cy MARCUSON et al.(1972) and KOK USHO et al.(1982), damping ratio teemed a group between curves obtained by ISHIHARA et al. (1975 ) and KOKOUSHO et al. ( 1982) •
Year1984
TypeThesis
SchoolSchool of Engineering and Technology
DepartmentDepartment of Civil and Infrastucture Engineering (DCIE)
Academic Program/FoSGeotechnical and Transportation Engineering (GT)
Chairperson(s)Yamada, Yasuo
Examination Committee(s)Balasubramaniam, A.S. ; Bergado, Dennes T.
Scholarship Donor(s)The Government of Denmark
DegreeThesis (M.Eng.) - Asian Institute of Technology, 1984


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