03067cam a2200421 4500 20260819085352.0 201198s1994 th r 0000|0 eng d .b10748106 AIT Thesis no. GT-93-18 Mohsin, A. K. M. Two-dimensional simulator for shield behavior Bangkok : Asian Institute of Technology, 1994 135 leaves Thesis ; no. GT-93-18 A thesis submitted in partial fulfillment of t he requirements for the degree of Master of Engineering, School of Civil Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1994 Now-a- days shield machine is controlled by the expert system or artificial intelligence system. There is no mathematical model at present which can apply for any size and shape of shield machine to simulate it. This research study is the first time and first initiative towards the development of that type of simulator. This research study mainly focus on the analytical formulation of two dimensional shield machine simulator model and finally developing a computer program based on that analytical formulation taking account of relative displacement. Rectangular cross section of shield with unit thickness (due to two dimensional mode l) was used for this analysis. The computer program finally calculate the trace of cutter face , trace of center of jack, rotational angle(A0), advancement of shield machine(Aq, Ar), radius of curvature(R) of the trace of cutter fac e at each step. After the considerable number of steps, the shield machine comes to steady state condition and it further travel along a circular path. The radius of curvature shows the behavior of shield machine. Results obtained from various type of data have been p resented at the end . Tunneling Shields (Geology) Sugimoto, M., Chairperson Noppadol Phien-Wej, Co-Chairperson Bergado, Dennes T., Examination Committee NORAD (Norway ), Scholarship Donor Asian Institute of Technology. Thesis ; no. GT-93-18 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17937 .b10748106 mnait s 240403 2 951012 m a s 0 mnait mnait mnarc 20 40 Barcode : 30050120708754 CREATED : 1995-10-16 RECORD # : i10959269 LPATRON : 1017045 LCHKIN : 2005-07-28 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050120708721 CREATED : 1995-10-16 RECORD # : i10959270 LPATRON : 1010930 LCHKIN : 2000-03-17 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 3 TOT RENEW : 0 Barcode : 30050120308167 CREATED : 2016-05-26 RECORD # : i12995319 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 123697 123697 0 0 0 0 MAIN MAIN mnait 2026-08-19 0 AIT Thesis no. GT-93-18 30050120708754 2026-08-19 08:53:52 1 2026-08-19 20 0 0 0 0 MAIN MAIN mnait 2026-08-19 0 AIT Thesis no. GT-93-18 30050120708721 2026-08-19 08:53:52 2 2026-08-19 20 0 0 0 0 MAIN MAIN mnarc 2026-08-19 0 AIT Thesis no. GT-93-18 30050120308167 2026-08-19 08:53:52 1 2026-08-19 40