AI SearchEffect of aspect ratio on soil-tine interactions at low speed in dry sand (Record no. 34150)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03555cas a2200397 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818094851.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 111005s1991 th uu|m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10226552 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.AE-91-10 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pathak, Bikash Kumar |
| 245 10 - TITLE STATEMENT | |
| Title | Effect of aspect ratio on soil-tine interactions at low speed in dry sand |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1991 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 83 p. + |
| Accompanying material | 1 online resource |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. AE-91-10 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1991 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The soil failure patterns and corresponding soil reactions under the action of flat vertical tools operating at quasi-static conditions in dry compact sand were studied. The soil failure was found to be by progressive shear, starting horizontally from the tool tip up to a certain distance and then progressing upward towards horizontal soil surface. The shear angle was found to be 27° ± 2°, which was very close to the theoretical angle (s/4-Z/2 ) of 26.5°, for all the tools studied. With increase in tool depth, even at the same aspect ratio, the additional shearing within already failed zones of soil became more and more prominent. At depths of 5 and 7.5 cm, the failure patterns remained almost the same with a change in aspect ratio, whereas at higher depths of 10 and 12.5 cm the failure patterns were found to change with tool aspect ratio. An additional shearing within already failed zones was also progressive in nature starting from top of the tool at an angle of 40° to 50° which was less than the theoretical angle (90°-Z) of 53°. The vertical and horizontal soil reactions were cyclic in nature and were in phase for all the tools under study. Wavelength and amplitude of horizontal soil reaction was found to increase with tool aspect ratio and depth. The stabilized surcharge took a distinct shape. The front portion was very close to quarter of an ellipsoid and the rear portion to a triangular wedge. Based on this shape, a model was developed to predict the stabilized surcharge weight. Predicted values were very close to the observed data at lower tool depths. With an increase in tool aspect ratio and depth, the observed data were found to be lower than the predicted values possibly due to the reason that the surcharge was not fully stabilized for bigger tools. The observed data and predicted values followed the same trend. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Tillage |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Salokhe, Vilas M., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Gee-Clough, D., |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Gupta, C.P., |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Maohua, Wang, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Royal Netherlands Government, |
| 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. AE-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=B17149">http://203.159.5.9/ait-thesis/detail.php?q=B17149</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10226552 |
| b | mnait |
| c | s |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240329 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | s |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 22-AIT Thesis (Replacement) |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120581656 |
| CREATED | CREATED : 2014-07-02 |
| RECORD Id | RECORD # : i12759612 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120363089 |
| CREATED | CREATED : 2016-05-27 |
| RECORD Id | RECORD # : i13000561 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | 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 | 50.00 | AIT Thesis no.AE-91-10 | 30050120581656 | 18/08/2026 | 3 | 18/08/2026 | 22-AIT Thesis (Replacement) | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.AE-91-10 | 30050120363089 | 18/08/2026 | 18/08/2026 | 40-Archives |