03362nam a2200409 4500 20260818175348.0 250398 th eng .b10541895 AIT Thesis no. 1273 Prawono, S. Radial consolidation of soft Pom Prachul clay by central drain oedometer Bangkok : Asian Institute of Technology, 1978 145 p. Thesis ; no. 1273 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand Thesis (M.Eng. ) - Asian Institute of Technology, 1978 In order to evaluate the coefficient of consolidation for horizontal drainage, ch, in Porn Prachul clay, a variety of laboratory tests were conducted. These included lever-arm and Bishop oedometer tests on 2.5 inch diameter samples with a central drain as well as tests on 6 inch diameter samples in a Rowe cell. All samples were taken from a depth between 5.0 and 5.5 m. For the Rowe oedometer tests four different drain diameters were used and pore pressures were measured at the base either at two diametrically located points or at four points with different distances from the drain. The coefficient of consolidation for radial drainage was evaluated from compression-time curves in case of the lever-arm and Bishop oedometer tests and from pore pressure dissipation in case of the Rowe oedometer tests. The degree of consolidation as a function of the radial distance from the drain was compared with Barron's equal strain solution. A fair agreement, however, was only observed for intermediate degrees of consolidation. The coefficient of consolidation was also evaluated from constant head permeability tests. The values of Ch obtained by the difference tests varied from about 5 to 20.10-8 cm2/sec, with the Rowe cell tests yielding the lowest values. An analysis of settlement plate observations under a test embankment revealed that the field value of Ch could be about 5 times higher than the value obtained from the Rowe oedometer. Clay Thailand Pom Prachul Testing Brenner, R.P., Chairperson Balasubramaniam, A.S., Examination Committee Onodera, T., Examination Committee Government of the United States of America, Scholarship Donor Asian Institute of Technology. Thesis ; no. 1273 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B22886 .b10541895 mnait x 260324 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050003024857 CREATED : 1994-05-18 RECORD # : i10680093 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050002896586 CREATED : 1994-05-18 RECORD # : i1068010x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160086954 CREATED : 2016-11-05 RECORD # : i12976088 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 97015 97015 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. 1273 30050003024857 2026-08-18 17:53:48 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. 1273 30050002896586 2026-08-18 17:53:48 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. 1273 30050160086954 2026-08-18 17:53:48 2026-08-18 40