03474nas|a2200445 i 4500 20260817162349.0 041226s2004 th uzm rtt 00| a1eng d .b11950729 AIT Thesis no.GE-03-01 Korakod Nusit Analysis of ground movement using a non-linear soil model for braced excavations in the Bangkok MRT Project Pathum Thani, Thailand : Asian Institute of Technology, 2004 144 leaves : ill. Thesis ; no. GE-03-01 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 2003 This thesis performed the numerical analysis by plain strain effective stress analysis in undrained conditions of predicted ground movements of 3 station excavations at the Bangkok MRT ISP Blue Line project. Comparisons are made between measurement data and numerical prediction with finite difference code (FLAC) and a finite element code (P ALXIS) from the previous study by Hooi (2003). The two numerical codes using linear elasto-plastic stress-strain model yielded similar patterns of predicted lateral ground movements between FLAC and PLAXIS. A non-linear soil model is used in the analysis to model the actual non-linear stress-strain behavior of soil. The results show close predicted lateral ground movement for both linear and non-linear analysis for the station excavations. Since the level of strain controls the stiffness values of non-linear analysis, it can be concluded that the, strain level behind the diaphragm wall until the last excavation stage is very low. Therefore the linear analysis can be used in the need of increased modulus to 2-3 times modulus of large strain. Finally, sensitivity analysis of soft clay, hard clay and stiff clay with non-linear soil model are studied. Only the variations in modulus of soft clay yield difference in maximum ground movement. The predominant stage of excavation that controls the maximum ground movement is the first stage includes the soft clay layer plays impo1tant roles. Numerical analysis Finite element method Soil stabilization Noppadol Phien-Wej, Chairperson Bergado, Dennes T., Examination Committee Park, Kyung Ho, Examination Committee Government of Japan, Scholarship donor Asian Institute of Technology. Thesis ; no. GE-03-01 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B09052 .b11950729 mnait u 240423 0 041217 m a u 0 mnait mnait mnarc 20 22 40 Barcode : 30050120715668 CREATED : 2004-12-17 RECORD # : i1243128x LPATRON : 1026557 LCHKIN : 2016-12-19 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 4 TOT RENEW : 1 Barcode : 30050120715692 CREATED : 2014-03-26 RECORD # : i12779854 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160054861 CREATED : 2016-05-23 RECORD # : i12986677 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 4799 4799 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.GE-03-01 30050120715668 2026-08-17 16:23:49 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.GE-03-01 30050120715692 2026-08-17 16:23:49 3 2026-08-17 22 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.GE-03-01 30050160054861 2026-08-17 16:23:49 1 2026-08-17 40