Advanced Scanning Technology for Volume Change Measurement of Residual Soil
Weathering processes of rocks lead to the formation of residual soil layers, which are typically characterized by a deep groundwater table and a thick unsaturated zone. Hence, the calculation of a slope’s safety factor under the influences of climatic circumstances is a function of unsaturated chara...
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MDPI AG
2024-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/23/10938 |
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| author | Saltanat Orazayeva Alfrendo Satyanaga Yongmin Kim Harianto Rahardjo Zhai Qian Sung-Woo Moon Jong Kim |
| author_facet | Saltanat Orazayeva Alfrendo Satyanaga Yongmin Kim Harianto Rahardjo Zhai Qian Sung-Woo Moon Jong Kim |
| author_sort | Saltanat Orazayeva |
| collection | DOAJ |
| description | Weathering processes of rocks lead to the formation of residual soil layers, which are typically characterized by a deep groundwater table and a thick unsaturated zone. Hence, the calculation of a slope’s safety factor under the influences of climatic circumstances is a function of unsaturated characteristics, such as the soil–water characteristic curve (SWCC). To determine the SWCC, the volume of the soil specimen must be determined in order to compute the void ratio and degree of saturation. The drying processes of the soil specimen led to uneven soil volume change during laboratory SWCC testing, demanding the development of a soil shrinkage curve. Several methods for measuring soil volume change have been developed over the years. However, there are significant limitations, and it is rarely used due to the difficulty linked to accurately measuring the soil volume during drying processes. In this study, a revised scanning approach is developed to evaluate residual soil volume change utilizing 3D scanning technology. The proposed method is applied in a case study on residual soil from the Old Alluvium in Singapore. The laboratory data and analysis results suggested that 3D scanning technology should be required to provide a correct estimation of the air-entry value of soil. |
| format | Article |
| id | doaj-art-2e33f4ca91c24f348cdafe5fa9c00845 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-2e33f4ca91c24f348cdafe5fa9c008452025-08-20T01:55:34ZengMDPI AGApplied Sciences2076-34172024-11-0114231093810.3390/app142310938Advanced Scanning Technology for Volume Change Measurement of Residual SoilSaltanat Orazayeva0Alfrendo Satyanaga1Yongmin Kim2Harianto Rahardjo3Zhai Qian4Sung-Woo Moon5Jong Kim6Department of Civil and Environmental Engineering, Nazarbayev University, Astana 010000, KazakhstanDepartment of Civil and Environmental Engineering, Nazarbayev University, Astana 010000, KazakhstanJames Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UKSchool of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, SingaporeSchool of Civil Engineering, Southeast University, Nanjing 210018, ChinaDepartment of Civil and Environmental Engineering, Nazarbayev University, Astana 010000, KazakhstanDepartment of Civil and Environmental Engineering, Nazarbayev University, Astana 010000, KazakhstanWeathering processes of rocks lead to the formation of residual soil layers, which are typically characterized by a deep groundwater table and a thick unsaturated zone. Hence, the calculation of a slope’s safety factor under the influences of climatic circumstances is a function of unsaturated characteristics, such as the soil–water characteristic curve (SWCC). To determine the SWCC, the volume of the soil specimen must be determined in order to compute the void ratio and degree of saturation. The drying processes of the soil specimen led to uneven soil volume change during laboratory SWCC testing, demanding the development of a soil shrinkage curve. Several methods for measuring soil volume change have been developed over the years. However, there are significant limitations, and it is rarely used due to the difficulty linked to accurately measuring the soil volume during drying processes. In this study, a revised scanning approach is developed to evaluate residual soil volume change utilizing 3D scanning technology. The proposed method is applied in a case study on residual soil from the Old Alluvium in Singapore. The laboratory data and analysis results suggested that 3D scanning technology should be required to provide a correct estimation of the air-entry value of soil.https://www.mdpi.com/2076-3417/14/23/10938soil–water characteristic curve3D scanshrinkage curveresidual soilunsaturated soil |
| spellingShingle | Saltanat Orazayeva Alfrendo Satyanaga Yongmin Kim Harianto Rahardjo Zhai Qian Sung-Woo Moon Jong Kim Advanced Scanning Technology for Volume Change Measurement of Residual Soil Applied Sciences soil–water characteristic curve 3D scan shrinkage curve residual soil unsaturated soil |
| title | Advanced Scanning Technology for Volume Change Measurement of Residual Soil |
| title_full | Advanced Scanning Technology for Volume Change Measurement of Residual Soil |
| title_fullStr | Advanced Scanning Technology for Volume Change Measurement of Residual Soil |
| title_full_unstemmed | Advanced Scanning Technology for Volume Change Measurement of Residual Soil |
| title_short | Advanced Scanning Technology for Volume Change Measurement of Residual Soil |
| title_sort | advanced scanning technology for volume change measurement of residual soil |
| topic | soil–water characteristic curve 3D scan shrinkage curve residual soil unsaturated soil |
| url | https://www.mdpi.com/2076-3417/14/23/10938 |
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