AI SearchNumerical analysis of embankments improved by granular piles and vertical drains on subsiding ground (Record no. 81931)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 05220cam a2200421 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818170235.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 231198s1992 th r 0000|00eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10470220 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. GT-91-10 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pham Van Long |
| 245 10 - TITLE STATEMENT | |
| Title | Numerical analysis of embankments improved by granular piles and vertical drains on subsiding ground |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1992 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 106 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. GT-91-10 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | In order to study the feasibility of improving the soft Bangkok clay, two full scale, instrumented, test embankments were constructed and have been constantly monitored since their construction in December, 1985. One embankment was improved by using 0.3 m diameter granular piles with 1.5 m spacing in triangular pattern. The other was improved by Mebra vertical drains with the same spacing of granular piles. The granular piles and vertical drains were penetrated to the stiff clay layer at the depth of 8m. Both embankments had the same final height of 4 m and situated in the campus of Asian Institute of Technology (AIT). Previous studies have been done to analyzed the settlement and stability behavior of the composite grounds using analytical methods. In this study, for the first time, Finite Element Method (FEM) based on revised Cam clay model has been used for the consolidation analysis of these test embankments. It was found that the best agreements between the observed and predicted settlements were obtained for both embankments, in which, the smear effects due to installation have been considered by using the previous findings of BERGADO et al. (1990), wherein dJd.n = 2.5 with kJks = 10. For the case of granular piles, dJ'4 = 2 was a very good fitting parameter. Comparison with the predicted settlements using analytical methods obtained by previous investigators (BOONKIAT, 1987; APOLLO, 1989), both the ASAOKA (1978) and SKEMPTON-BJERRUM (1957) method gave good agreements for the embankment on vertical drains. However, for embankment on granular piles, only FEM and ASAOKA·s method yielded good results. The conventional method (ABOSHI et al., 1979; BARKSDALE, 1981) resulted in overestimation of settlement. The predicted stress concentration factor in granular pile improvement ranged from 2.4 ·to 8 depending on the degree of consolidation and locations within the piles. The results shown that the shear strength-to-shear stress ratio of ground improved by vertical drains increased to 1.3 times in the period of 600 days from the end of construction and almost remained constantly after that time. On the other hand, the shear strength-to-shear stress ratio of ground improved by granular piles was at least 1.25 times greater than that of the ground improved by vertical drains. The effects of ground subsiding on different depths of the ground improvement have been evaluated. For the condition of the test site, penetration of vertical drains and granular piles to the depth of 8 m, where the pore pressure drawdown about 1.3 m from the current hydrostatic pore pressure, additional settlements were obtained in both improved grounds. The results suggested that it was better to use 6 m of granular piles or vertical drains down to the top of the medium stiff clay, where the pore pressure was almost hydrostatic. An equivalent permeability for plane strain model of improved ground that has been introduced, yielded the time rate of consolidation in good agreement with observed data in both embankments. Other behavior of composite grounds, such as stress changes due to installation, failure stress of granular piles and surrounding soils have also been analyzed. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Embankments |
| General subdivision | Numerical solutions |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Bergado, Dennes T., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Balasubramaniam, A.S., |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Honjo, Yusuke, |
| Relator term | Examination committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Noppadol Phien-Wej, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Development Bank - Japan, |
| Relator term | Scholarship donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. GT-91-10 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B16624">http://203.159.5.9/ait-thesis/detail.php?q=B16624</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10470220 |
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| a | 240402 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003017448 |
| CREATED | CREATED : 1995-10-15 |
| RECORD Id | RECORD # : i10588711 |
| LPATRON | LPATRON : 1028938 |
| LCHKIN | LCHKIN : 2018-11-07 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120712061 |
| CREATED | CREATED : 1995-10-15 |
| RECORD Id | RECORD # : i10588723 |
| LPATRON | LPATRON : 1017040 |
| LCHKIN | LCHKIN : 2006-11-05 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120309074 |
| CREATED | CREATED : 2016-05-25 |
| RECORD Id | RECORD # : i12991612 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. GT-91-10 | 30050003017448 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. GT-91-10 | 30050120712061 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no. GT-91-10 | 30050120309074 | 18/08/2026 | 1 | 18/08/2026 | 40-Archives |