03453nas|a2200385z; 4500 20260818095231.0 951012s1980 th uzm rtt 00| a1eng d .b10230142 AIT Thesis no.GT-79-03 Pornthep Asanittong Effects of displacement-type sand drain installation on the shear and compressibility parameter of soft Bangkok clay Bangkok : Asian Institute of Technology, 1980 v, 113 p. Thesis ; no. GT-79-03 A thesis submitted in the partial fulfilment of the requirement for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1980 In order to study the effect of displacement type sand drain installation on strength and compressibility of soft Bangkok clay unconfined compression tests, laboratory vane shear tests, isotropically consolidated undrained tests, vertical and horizontal consolidation tests were carried out on the undisturbed samples, the samples taken at certain time intervals after the installation and the samples completely remolded by hands. In terms of compressibility, at the depths of 2.5 m, 4.5 m and 7.0 m, the soil characteristics observed were the consolidation curves, the virgin compression index and the rate of consolidation. It was found that the disturbance effect on vertical and horizontal compressibility's for the post installation samples was considerable at a depth of 7.0 m. The vertical and horizontal coefficient of consolidation were affected greatly throughout the soft clay layer. In terms of shear strength, the layer between 2.5 m and 6.0 m were investigated. The degree of disturbance immediately after the installation was determined. The subsequent water content, undrained shear strength and their relations were observed. It was found that on the average the shear strengths inunediately after the installation were reduced to a half of the difference between those of the undisturbed and remolded samples. However, it appeared that, subsequently, the reduced shear strength after installation tended to increase with decrease in water content along the straight line representing the relationship between the water content and the logarithm of undrained shear strength. This straight line was found approximately in parallel with the water content versus the logarithm of consolidation pressure. Shear strength of soils Testing Akagi, T., Chairperson Balasubramaniam, A.S., Examination Committee Brenner, R.P., Examination Committee Government of Canada, Scholarship Donor Asian Institute of Technology. Thesis ; no. GT-79-03 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B22008 .b10230142 mnait u 250325 2 951012 m a u 0 mnait mnarc 22 40 Barcode : 30050120737886 CREATED : 2014-03-26 RECORD # : i12779477 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 1 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160071154 CREATED : 2016-05-17 RECORD # : i1297884x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 35091 35091 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.GT-79-03 30050120737886 2026-08-18 09:52:31 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.GT-79-03 30050160071154 2026-08-18 09:52:31 1 2026-08-18 40