Influence of Saltwater Submergence on Geohydraulic Properties of Sand: A Laboratory Investigation
Saline water intrusion into freshwater aquifers is a major geohydraulic problem relevant to coastal environment. Apart from contaminating the fresh groundwater resources, the saltwater intrusion alters the geotechnical properties of the aquifer materials, affecting the coastal water resource plannin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Hydrology |
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| Online Access: | https://www.mdpi.com/2306-5338/8/4/181 |
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| author | Sudip Basack Ghritartha Goswami Sumanpran Sonowal Moses Karakouzian |
| author_facet | Sudip Basack Ghritartha Goswami Sumanpran Sonowal Moses Karakouzian |
| author_sort | Sudip Basack |
| collection | DOAJ |
| description | Saline water intrusion into freshwater aquifers is a major geohydraulic problem relevant to coastal environment. Apart from contaminating the fresh groundwater resources, the saltwater intrusion alters the geotechnical properties of the aquifer materials, affecting the coastal water resource planning and management. The present study focuses on an in-depth laboratory investigation of the influence of saltwater submergence on the geohydraulic properties of sand. The fine sand sample was submerged under saline water of specified concentrations for specific periods, and the alteration in their engineering properties has been studied. It is observed that the specific gravity, dry density, and permeability of fine sand is significantly affected by the period of submergence and saline concentration. The specific gravity of sand particles was observed to increase almost linearly with period of submergence and saline concentration. While the sand dry density decreased fairly linearly with the period of submergence, the same is not being affected significantly by saline concentration. The permeability of sand increased nonlinearly with both period of submergence and saline concentration; for a submergence period of 14 days and saline concentration of 30,000 ppm, the permeability increased to a maximum value. |
| first_indexed | 2024-03-10T03:58:16Z |
| format | Article |
| id | doaj.art-304f39c4ab9d4f6f87f3c2a4f768efe5 |
| institution | Directory Open Access Journal |
| issn | 2306-5338 |
| language | English |
| last_indexed | 2024-03-10T03:58:16Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Hydrology |
| spelling | doaj.art-304f39c4ab9d4f6f87f3c2a4f768efe52023-11-23T08:39:45ZengMDPI AGHydrology2306-53382021-12-018418110.3390/hydrology8040181Influence of Saltwater Submergence on Geohydraulic Properties of Sand: A Laboratory InvestigationSudip Basack0Ghritartha Goswami1Sumanpran Sonowal2Moses Karakouzian3Elitte College of Engineering, Affiliated: MAKA University of Technology, Kolkata 700113, IndiaCivil Engineering Department, North Eastern Regional Institute of Science and Technology, Nirjuli 791109, IndiaWater Resources Department, Government of Assam, Guwahati 781029, IndiaCivil Engineering, International Recycled Rubber Product Initiative, University of Nevada, Las Vegas, NV 89154, USASaline water intrusion into freshwater aquifers is a major geohydraulic problem relevant to coastal environment. Apart from contaminating the fresh groundwater resources, the saltwater intrusion alters the geotechnical properties of the aquifer materials, affecting the coastal water resource planning and management. The present study focuses on an in-depth laboratory investigation of the influence of saltwater submergence on the geohydraulic properties of sand. The fine sand sample was submerged under saline water of specified concentrations for specific periods, and the alteration in their engineering properties has been studied. It is observed that the specific gravity, dry density, and permeability of fine sand is significantly affected by the period of submergence and saline concentration. The specific gravity of sand particles was observed to increase almost linearly with period of submergence and saline concentration. While the sand dry density decreased fairly linearly with the period of submergence, the same is not being affected significantly by saline concentration. The permeability of sand increased nonlinearly with both period of submergence and saline concentration; for a submergence period of 14 days and saline concentration of 30,000 ppm, the permeability increased to a maximum value.https://www.mdpi.com/2306-5338/8/4/181aquiferdry densitypermeabilitysaline water intrusionsandspecific gravity |
| spellingShingle | Sudip Basack Ghritartha Goswami Sumanpran Sonowal Moses Karakouzian Influence of Saltwater Submergence on Geohydraulic Properties of Sand: A Laboratory Investigation Hydrology aquifer dry density permeability saline water intrusion sand specific gravity |
| title | Influence of Saltwater Submergence on Geohydraulic Properties of Sand: A Laboratory Investigation |
| title_full | Influence of Saltwater Submergence on Geohydraulic Properties of Sand: A Laboratory Investigation |
| title_fullStr | Influence of Saltwater Submergence on Geohydraulic Properties of Sand: A Laboratory Investigation |
| title_full_unstemmed | Influence of Saltwater Submergence on Geohydraulic Properties of Sand: A Laboratory Investigation |
| title_short | Influence of Saltwater Submergence on Geohydraulic Properties of Sand: A Laboratory Investigation |
| title_sort | influence of saltwater submergence on geohydraulic properties of sand a laboratory investigation |
| topic | aquifer dry density permeability saline water intrusion sand specific gravity |
| url | https://www.mdpi.com/2306-5338/8/4/181 |
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