04274nas|a2200433 i 4500 20260817163110.0 040818s2003 th uzm rtt 00| a1eng d .b11936903 AIT Thesis no.GE-02-11 Zamora, Cesar Ryan M. Appraisal of soil properties and ground condition for the prediction of embankment behavior Pathum Thani, Thailand : Asian Institute of Technology, 2003 96 leaves Thesis ; no. GE-02-11 Thesis (M.Eng.) - Asian Institute of Technology, 2003 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Higher prediction accuracies are always desired and because of this, numerous tests are made and models developed. Improvements gained by developments in soil parameter determination are usually checked by conducting behavior predictions using a certain method of analysis and vice versa. However prediction results can not be attributed to either parameter accuracy or to the analysis method but to the relation of both. In this study, required parameter accuracy was quantitatively determined by the limits imposed by the analysis method. Soil prediction using elasto-viscoplastic soil model by Sekiguchi and Ohta(1977) using the FEM method DACSAR was adopted to determine required parameter accuracy. Capability of the adopted analysis method was verified by checking against elastic theory, triaxial tests and actual embankment behavior. From the test using elasticity, it was shown that DACSAR can give reasonably accurate results with appropriate meshing. Upon comparison with triaxial tests, it was verified that soil behavior at compression can be described by the model. This was shown by having outputs with similar trends with measured values. However it was observed that the soil model has an apparent weakness in predicting extension test behavior. Lastly, an embankment simulation was done. From the results of this simulation, it was shown that DACSAR can give acceptable predictions of the general embankment behavior except for predicting lateral displacements and heaving which was attributed to its weakness to simulate extension behavior. Upon verification of the prediction capability, a study on the effects of the main elements of embankment behavior was performed. These elements includes: size of analyzed ground problem discretization, loading rate, the stiff crust layer and the input material properties of the ground. From this step, it can be concluded that problem discretization gives a significant effect on prediction accuracy, the neglect to account the stiff crust layer would lead to serious prediction errors, and lastly focus should be done on determining values for the poisson ratio, preconsolidation pressure and the slope of the swelling line, K, since it was observed that these parameters gave much influence to the predicted results. Embankments Finite element method Soils Analysis Takemura, Jiro, Chairperson Park, Kyung Ho, Examination Committee Glawe, Ulrich, Examination committee Japanese Government, Scholarship Donor Asian Institute of Technology. Thesis ; no. GE-02-11 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B08321 .b11936903 mnait u 240419 0 040818 m a u 0 mnait mnait mnarc 20 40 Barcode : 30050120715577 CREATED : 2004-08-13 RECORD # : i12411838 LPATRON : 1016279 LCHKIN : 2004-08-10 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050120715569 CREATED : 2004-08-13 RECORD # : i1241184x LPATRON : 1022623 LCHKIN : 2011-09-27 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050160054960 CREATED : 2016-05-23 RECORD # : i12985971 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 7381 7381 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.GE-02-11 30050120715577 2026-08-17 16:31:10 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.GE-02-11 30050120715569 2026-08-17 16:31:10 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.GE-02-11 30050160054960 2026-08-17 16:31:10 1 2026-08-17 40