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035 _a.b10226485
099 9 _aAIT Thesis no. 379
100 0 _aUthai Pamchareon
245 1 0 _aEffect of anisotropic preconsolidation on the strength characteristics of a normally consolidated clay
260 _aBangkok :
_bAsian Institute of Technology,
_c1972
300 _a88 p.
490 1 _aThesis ;
_vno. 379
500 _aA thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering at the Asian Institute of Technology, Bangkok, Thailand.
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1972
520 _aAn experimental investigation was carried out to study the effects of anisotropic preconsolidation on the strength characteristics of three artificially sedimented, normally consolidated clays. Sediments of Soft Bangkok Clay in the three different solutions of calcium chloride, sodium chloride and distilled water were preconsolidated under Ko conditions by vertical pressures ranging from 10 to 80 lb/ in2 before isotropic CU triaxial tests were carried out. The experimental evidence collected from this short investigation is conclusive in proving that the existing laboratory triaxial technique does not give unique strength behaviour for a particular normally consolidated clay. It is clear that the strength characteristics, as determined from specimens consolidated isotropically in the .triaxial cell, are affected by the anisotropic stress conditions imposed on the clay prior to sampling where the laboratory consolidation pressure is considerably higher than the maximum past pressure, the effects of the prior anisotropic consolidation is not important. These effects are only significant where Ō vm is small and where Ōc/Ōvm approaches unity. This conclusion appears to be independent of the structure produced in the clay by the process of sedimentation.
650 0 _aSoil consolidation
650 0 _aShear strength of soils
700 1 _aBrand, E.W.,
_eChairperson
700 0 _a Chai Muktabhant,
_eExamination Committee
700 1 _aMoh, Za-Chieh,
_eExamination Committee
710 2 _aAsian ·Institute of Technology,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. 379
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B24304
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