AI SearchDevelopment of permeability-floc size criterion for granular filter design for the protection of cracked dam cores (Record no. 29436)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 04343cam|a2200445 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818090903.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 251198s1990 th r 0000|00eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10200174 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. GT-89-04 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Dilema, Esther Lynn G. |
| 245 10 - TITLE STATEMENT | |
| Title | Development of permeability-floc size criterion for granular filter design for the protection of cracked dam cores |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1990 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 115 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. GT-89-04 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment 'of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1990 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Earth dam engineering had increasingly emphasized the detrimental effects of concentrated leaks developed through the cracked core, which lead to considerable erosion of fine materials, mainly clay and silt. Dispersed clay particles rarely exist due to the presence of calcium and other multivalent cations in the reservoir waters that encourage flocculation. Therefore, economical filter design should attempt to consider the retention of clay flocs rather than individual dispersed particles. In t h is respect , a filter design approach based on filter permeability and retained equivalent particle sizes was investigated . Series of filtration tests were carried out simulating a concentrated leak in the cohesive core. Slurries containing fine materials obtained from a residual lateritic s oil (passing sieve #200) were percolated through sand filters. A anhydrous salt (CaCl2 ) was added to the clay slurries to e n courage flocculation , where t h e corresponding clay floc sizes would represent typical field (reservoir) conditions. The 'equivalent' floe sizes were determined by hydrometer sedimentation tests. The granular filters tested within t he scope of this study included an array of fine to coarse grained sand , both uniform and well graded. The influence of the filter grading was particularly investigated by varying the uniformity coefficient. Another set o f a common tests included several groups of graded filters , each group having specific particle sizes , D5 or D10 or D15 etc. It was found that the permeability of the filter is a specific function of the smallest particle fraction of the filter , namely D5 or D10 . The effectiveness of the filter for a given flocculated clay suspension could be assessed by measuring the flow rat e and the turbidity of the effluent. By representing on a log scale , t h e equivalent floe sizes ( os5) versus the filter permeabilities for t h e complete series of tests, it has been possible to identify a linear boundary which distinctly separates t h e effective filters from the ineffective ones . This relationship established for these fine erodible particles may be used as a reliable design guideline for the protection of dam cores con structed with soils of similar mineralogy. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Granular materials |
| General subdivision | Permeability |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Filters and filtration |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Earth dams |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Indraratna, Buddhima, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Bergado, Dennes T., |
| Relator term | Co-Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Honjo, Yusuke, |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Prinya Nutalaya, |
| Relator term | Examintion Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Government of Japan, |
| Relator term | Scholasrship 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-89-04 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B18387">http://203.159.5.9/ait-thesis/detail.php?q=B18387</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10200174 |
| 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 | mnait |
| 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 : 30050003016127 |
| CREATED | CREATED : 1995-10-13 |
| RECORD Id | RECORD # : i10240871 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003016135 |
| CREATED | CREATED : 1995-10-13 |
| RECORD Id | RECORD # : i10240883 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120309769 |
| CREATED | CREATED : 2016-05-24 |
| RECORD Id | RECORD # : i12989381 |
| 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 | 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-89-04 | 30050003016127 | 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-89-04 | 30050003016135 | 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-89-04 | 30050120309769 | 18/08/2026 | 1 | 18/08/2026 | 40-Archives |