03748nas|a2200397 i 4500 20260818113212.0 191199s1999 th uu m rtt 00| a1eng d .b11764971 AIT Thesis no.GE-98-27 Navaneethan, Thiruchelvam Extension behavior of soft Bangkok clay with selected applied stress paths Bangkok : Asian Institute of Technology, 1999 126 leaves Thesis ; no. GE-98-27 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1999 The stress-strain behavior of soft Bangkok clay within the State Boundary Surface has been studied in details under extension loading conditions by carrying out series of tests, fifteen overconsolidated and a normally consolidated, which were isontropic consolidated samples. All overconsolidated specimens were performed under different applied stress paths with the same OCR of 2. 7 5. Initial pre-shear void ratios were within a narrow band of 1.82 to 1.91. Consolidation and Swelling parameters 'A and K values are 0.53 and 0.098, respectively. The M value corresponding to the peak deviator stress and peak stress ratio conditions is 0.96. The volumetric yield locus, the Hvorslev Surface and the tension failure line are evaluated and plotted in (p, q) plot. In the (pipe, qlpe) plot, the failure points trend to cluster around the Critical State point. The contours of strain within the State Boundary Surface are presented and discussed. Based on the total and plastic strains, the contours of strain can be presented in the normalized (pipe, qlpe) plot. From the total volumetric strain contours plot, the area within the State Boundary Surface can be divided into two zones. The volumetric strain in Zone I is positive whereas the volumetric strain is negative in Zone II. The region within the State Boundary Surface is divided into three zones based on the plastic volumetric yielding. In Zone I, the plastic volumetric strain is purely elastic and is closed to the isontropic axis. This behavior supports the elastic wall concept of Cambridge group. In the Zone II on the wet side, compressive plastic volumetric strains take place, whereas in Zone III dilational plastic volumetric strains occur. Stress circles and corresponding strain contours also plotted. Finally, experimental results were compared with predictions of Pender's Model (Pender, 1978). It was found that the model provides reasonably good prediction within the State Boundary Surface. Clay Thailand Bangkok Testing Balasubramaniam, A.S., Chairperson Tian Ho Seah, Examination Committee Der Guey, Lin, Examination committee Otsu, Hiroyasu, Examination committee Asian Institute of Technology Partial Scholarship, Scholarship donor Asian Institute of Technology. Thesis ; no. GE-98-27 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B12534 .b11764971 mnait y 240420 0 991111 m a y 0 mnait mnarc 22 40 Barcode : 30050120716856 CREATED : 2014-03-31 RECORD # : i12783869 LPATRON : 1015570 LCHKIN : 2017-05-01 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 1 Barcode : 30050160080841 CREATED : 2016-05-17 RECORD # : i12980031 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 42597 42597 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.GE-98-27 30050120716856 2026-08-18 11:32:12 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.GE-98-27 30050160080841 2026-08-18 11:32:12 1 2026-08-18 40