Comparison of permeability from laboratory and mini-disk infiltrometer tests
To compare the hydraulic conductivity of near surface soils using in-situ field measurement and laboratory measurement, 10 sites on the NTU campus were investigated. First, two in-situ field measurements using mini-disk infiltrometer were performed at each site, one using the standard measurement of...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2024
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| Online Access: | https://hdl.handle.net/10356/176339 |
| _version_ | 1811694792764030976 |
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| author | Chan, Tuck Hao |
| author2 | Leong Eng Choon |
| author_facet | Leong Eng Choon Chan, Tuck Hao |
| author_sort | Chan, Tuck Hao |
| collection | NTU |
| description | To compare the hydraulic conductivity of near surface soils using in-situ field measurement and laboratory measurement, 10 sites on the NTU campus were investigated. First, two in-situ field measurements using mini-disk infiltrometer were performed at each site, one using the standard measurement of unsaturated hydraulic conductivity, another using the modified setup to conduct 1D infiltration test by installing a PVC tube vertically to restrict water flow to solely in the vertical direction. Second, undisturbed soil samples were sampled at the field measurement locations for laboratory falling-head test, grain-size distribution analysis. The grain size distribution analysis includes which includes wet sieving, dry sieving, specific gravity analysis and hydrometer test to identify the soil texture according to the USDA soil classification. The soil texture is needed for interpretation of the mini-disk infiltrometer test. The water content of the soils before and after each experiment were also measured. The modified mini-disk infiltrometer tests were analysed using Hydrus 1D software. Sensitivity analyses were conducted by adjusting the saturated hydraulic conductivity and van Genuchten water-retention parameters of the soil to gain a better understanding of the hydraulic conductivity at each site and between sites. |
| first_indexed | 2024-10-01T07:13:13Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/176339 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:13:13Z |
| publishDate | 2024 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1763392024-05-24T15:35:16Z Comparison of permeability from laboratory and mini-disk infiltrometer tests Chan, Tuck Hao Leong Eng Choon School of Civil and Environmental Engineering CECLEONG@ntu.edu.sg Engineering Mini-disk infiltrometer tests Hydraulic conductivity of soils Permeability of soils Falling head test 1D infiltration To compare the hydraulic conductivity of near surface soils using in-situ field measurement and laboratory measurement, 10 sites on the NTU campus were investigated. First, two in-situ field measurements using mini-disk infiltrometer were performed at each site, one using the standard measurement of unsaturated hydraulic conductivity, another using the modified setup to conduct 1D infiltration test by installing a PVC tube vertically to restrict water flow to solely in the vertical direction. Second, undisturbed soil samples were sampled at the field measurement locations for laboratory falling-head test, grain-size distribution analysis. The grain size distribution analysis includes which includes wet sieving, dry sieving, specific gravity analysis and hydrometer test to identify the soil texture according to the USDA soil classification. The soil texture is needed for interpretation of the mini-disk infiltrometer test. The water content of the soils before and after each experiment were also measured. The modified mini-disk infiltrometer tests were analysed using Hydrus 1D software. Sensitivity analyses were conducted by adjusting the saturated hydraulic conductivity and van Genuchten water-retention parameters of the soil to gain a better understanding of the hydraulic conductivity at each site and between sites. Bachelor's degree 2024-05-24T04:41:06Z 2024-05-24T04:41:06Z 2024 Final Year Project (FYP) Chan, T. H. (2024). Comparison of permeability from laboratory and mini-disk infiltrometer tests. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/176339 https://hdl.handle.net/10356/176339 en GE-06 application/pdf Nanyang Technological University |
| spellingShingle | Engineering Mini-disk infiltrometer tests Hydraulic conductivity of soils Permeability of soils Falling head test 1D infiltration Chan, Tuck Hao Comparison of permeability from laboratory and mini-disk infiltrometer tests |
| title | Comparison of permeability from laboratory and mini-disk infiltrometer tests |
| title_full | Comparison of permeability from laboratory and mini-disk infiltrometer tests |
| title_fullStr | Comparison of permeability from laboratory and mini-disk infiltrometer tests |
| title_full_unstemmed | Comparison of permeability from laboratory and mini-disk infiltrometer tests |
| title_short | Comparison of permeability from laboratory and mini-disk infiltrometer tests |
| title_sort | comparison of permeability from laboratory and mini disk infiltrometer tests |
| topic | Engineering Mini-disk infiltrometer tests Hydraulic conductivity of soils Permeability of soils Falling head test 1D infiltration |
| url | https://hdl.handle.net/10356/176339 |
| work_keys_str_mv | AT chantuckhao comparisonofpermeabilityfromlaboratoryandminidiskinfiltrometertests |