04557nam a2200505 a 4500 20260818084847.0 .b10165964 En AIT Diss. no. GT-92-01 Lin, Der Guey Constitutive modelling of cement stabilized soil-soft clay interface Bangkok : Asian Institute of Technology, 1993 385 leaves : ill. Dissertation ; no. GT-92-01 Thesis (Ph. D.) - Asian Institute of Technology, 1992 A dissertation s ubmitted in pa rtia l f ulfillment of the requirements for the Degree of Doctor of Engineering, School of Engineering and Technology Undisturbed composite samples was obtained from the interface of the cement piles supporting a test embankment in the AIT campus. Constant volume and constant normal stress direct shear test were performed on the interface material. Based on these data a softening parameter x is defined to depend only on the plastic shear displacement uP. A yield function, F, is then formulated to coincide with the Mohr-Coulomb failure criterion of the interface material. The Mohr-Coulomb strength parameters, 6 , is dependent on the plastic shear displacement uP during strain softening. The variation of the softening parameter 'K ·, generates a family of yield loci. The plastic potential function G is formulated by comparing the numerical result of plastic displacement increments def ( = A.(oG/ oa 1 ) ) with the field of experimentally determined plastic displacement increments d~ ( Id~ I= J (du P) 2 + (dvP) 2 ) which intersects the function at every point at right angle. The dvP is plastic normal displacement increment of interface. Within the yield loci the pre-peak shear behavior of the interface is described by a piece-wise linear elastic relationship. The elastic shear stiffness Kn for shear displacement is obtained from the experimental observations and is expressed as a function of the initial normal stress and the current interface stress level. During the phase when yielding takes place the post-peak strain softening behavior is characterized by the softening modulus M . and the non-associated stress-strain relationship is derived in terms of yield function F, the plastic potential G, the softening parameter x and the contraction angle tp ( tan tp = d vP I duP ). The constitutive law so developed for the elastic behavior and the yielding are then used to simulate the direct shear behavior of the interface materials. Comparisons of the experimental observations with predictions from the developed elastoplastic model reveal that the model makes successful predictions for stresses at pre-peak and post-peal< states. Moreover, the model combined with non-associated flow rule gives more approximate predictions for the volume change of interface. Soil stabilization Honjo, Yusuke, Chairperson Balasubramaniam, A.S., Examination Committee Pisidhi Karasudhi, Examination committee Noppadol Phien-Wej, Examination Committee Tamotsu Matusi, Examination committee Republic of China, Scholarship donor Asian Institute of Technology. Dissertation ; no. GT-92-01 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B15979 .b10165964 mnait u 240508 2 951012 m a u 0 AIT Diss. no. GT-92-1 mnait b m 099 30050001044568 mnait 30050001044576 c. 2 mnait mnait mnait mnarc mnarc 20 40 Barcode : 30050002916624 CREATED : 1995-10-13 RECORD # : i1019695x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003058582 CREATED : 1995-10-13 RECORD # : i10196961 LPATRON : 1014719 LCHKIN : 2003-03-30 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 8 TOT RENEW : 17 Barcode : 30050160003520 CREATED : 2016-02-15 RECORD # : i1288201x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120929335 CREATED : 2019-12-14 RECORD # : i13240456 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 22196 22196 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Diss. no. GT-92-01 30050002916624 2026-08-18 08:48:47 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Diss. no. GT-92-01 30050003058582 2026-08-18 08:48:47 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Diss. no. GT-92-01 30050160003520 2026-08-18 08:48:47 1 2026-08-18 40 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Diss. no. GT-92-01 30050120929335 2026-08-18 08:48:47 3 2026-08-18 20