02989nas|a2200397 a 4500 20260817162503.0 051219s2005 th uu|m rtt 0| a1eng d .b11976809 AIT Thesis no.GE-04-01 Thakur, Pramod Kumar Analysis of time-dependent response of tunnels considering creep effect Pathum Thani, Thailand : Asian Institute of Technology, 2005 102 leaves : ill. + 1 online resource Thesis ; no. GE-04-01 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, 2005 An existing axis-symmetric creep closure computer algorithm using the hyperbolic creep law for circular tunnels (Phienwej, 1987) is modified to incorporate the power creep law. Effect of various types of supports in accordance with convergence-confinement method given by Hoek and Brown (1980) is incorporated in the analysis. Location of support installation with respect to the tunnel face is considered as well. From the study, the hyperbolic creep law is found to be more practical than the power creep law because the former allows for yielding of the ground with increase in time step when large value of Rf (0.90 - 0.99) is used. A parametric study is performed using the hyperbolic law and the results are discussed. Predicted convergence was compared with the monitored convergence data of a number of tunnels and was found in good agreement. Moreover, it is found that the convergence and support yielding time are most sensitive to hyperbolic parameter Eu/(1-3)f and creep parameter . The values of Eu/(1-3)f equal (200 - 250) and equal (0.03 - 0.115) predict the convergence well. The analysis will be useful in predicting time-dependent convergence and support load for tunnels in both rock and soil. Tunnels Rocks Creep Noppadol Phien-Wej, Chairperson Bergado, Dennes T., Examination Committee Park, Kyung Ho, Examination Committee Asian Development Bank-Japan Scholarship Program, Scholarship donor Asian Institute of Technology. Thesis ; no. GE-04-01 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B12188 .b11976809 mnait u 240329 0 051206 m a u 0 mnait mnarc 22 40 Barcode : 30050120715221 CREATED : 2014-03-26 RECORD # : i12780479 LPATRON : 1027130 LCHKIN : 2016-11-18 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 2 TOT RENEW : 2 Barcode : 30050160054705 CREATED : 2016-05-23 RECORD # : i12987232 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 5186 5186 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.GE-04-01 30050120715221 2026-08-17 16:25:03 3 2026-08-17 22 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.GE-04-01 30050160054705 2026-08-17 16:25:03 1 2026-08-17 40