02445nas a2200253   450000500170000000800410001703500150005810000190007324500630009226000520015530000430020749000270025050001350027750200530041252013840046565000280184965000190187770000290189670000410192570000470196671000540201381000590206785600650212620260819090243.0970807s1997    th uu m rtt   0|  a1eng d  a.b116325251 aTang, Hui Gang10aVolume change behavior of unsaturated soils due to suction  aBangkok :bAsian Institute of Technology,c1997  a86 leaves :bill. +e1 online resource1 aThesis ;vno. GE-96-21  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering  aThesis (M. Eng.) - Asian Institute of Technology  aCollapse and expansive phenomena are typical behaviors of unsaturated soils.  Suction significantly influences on volume change behavior of unsaturated soils. A  number of natural disaster in the world is occurs resulting from the mechanical behavior of  unsaturated soil, like Northeast of Thailand. In order to investigation the volume change  behavior of unsaturated soils due to suction, two experimental tests, which are  conventional oedometer test and pressure plate test, were adopted in this study. The  generalized elastoplastic model proposed by Kohgo et al. (1993) was used to analysis and  predict the volume change behavior of unsaturated soils based on experimental test results.  Forty-eight of oedometer tests were carried out at various degrees of saturation,  and 5 pressure plate tests were performed at slurry sample (nearly 100 percent saturation).  Both tests are conducted on Yellow soil and Mixed soil. Yellow soil is collected around  Khon Kaen city. Mixed soil consists of 80 % of Yellow soil and 20% Bangkok clay.  The results obtained from conventional consolidation tests and suction  consolidation tests show that the predicted and measured void ratio agree well in the  plastic range of deformation. Yellow soil is typical collapsible soil. The volume change  behavior of unsaturated soils can be predicted by Kohgo et al.' s elastoplastic model.  0aSoil consolidation test 0aSoil mechanics1 aKohgo, Y.,eChairperson 1 aShibuya, S.,eExamination Committee 1 aBergado, Dennes T.,eExamination Committee2 aAsian Institute of Technology,eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. GE-96-21  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B13526