03455cam|a2200421 i 4500 20260818090430.0 261198s1989 th r 0000|00eng d .b10195300 AIT Thesis no. GT-89-13 Shieh, Shien-jeng Determination of soil parameters for design of buried flexible pipes in Bangkok clay Bangkok : Asian Institute of Technology, 1989 92 p. Thesis ; no. GT-89-13 A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1989 A test section was conducted on a section of an actual buried pipe laying project in Bangkok subsoil . This flexible pipe was installed in a trench excavated with the help of braced sheet pile . The deflection of the pipe and the ground movements were closely monitored to evaluate the effect of overburden and surcharge loads and ground movements on the response of the pipe. It was found that a large ground surface settlement , 2.08%- 4 . 33% of trench depth , developed at the end of the completion of backfilling and sheet pile pulling. The maximum lateral ground movement toward the trench was approximately the same of the maximum settlement. The settlement further increased by 27% to 4396 at the end of the following three weeks while the lateral displacement remained almost unchanged . This large ground movement has great effect on pipe deflection and thus the back calculated value of soil reaction modulus (E') of the backfill from the Iowa formula. The E ' value is in the range of 303 - 976 ksc when backfill to 1.2 m above pipe. The effect of sheet pile pulling on the reduction of E' also observed , its value ranges from 105-214 ksc. At the end of construction, E' is 112 - 462 ksc, which is higher than that suggested by U.S.B.R. guideline. Furthermore, it also show that even voids left after sheet pile pulling did not reduce the E' value drastically as expected probably due to the compensating effect of large inward lateral ground movement . Pipe lines Clay Thailand Bangkok Noppadol Phien-Wej, Chairperson Honjo, Yusuke, Examination Committee Bergado, Dennes T., Examination Committee Ret- Ser Engineering Agency Taipei , Taiwan , R.O.C., Scholarship Donor Asian Institute of Technology. Thesis ; no. GT-89-13 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B18082 .b10195300 mnait s 240329 2 951012 m a s 0 mnait mnait mnarc 20 40 Barcode : 30050003016291 CREATED : 1995-10-13 RECORD # : i1023407x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003016309 CREATED : 1995-10-13 RECORD # : i10234081 LPATRON : 1014538 LCHKIN : 2016-12-13 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 3 TOT RENEW : 0 Barcode : 30050120309678 CREATED : 2016-05-24 RECORD # : i12989757 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 28057 28057 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. GT-89-13 30050003016291 2026-08-18 09:04:30 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. GT-89-13 30050003016309 2026-08-18 09:04:30 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. GT-89-13 30050120309678 2026-08-18 09:04:30 1 2026-08-18 40