A Trans-Scale Study on the Influence of Water Content and Particle Size on Matric Suction
Exploring the water retention properties of unsaturated soil from the perspective of a liquid bridge has been a popular issue in recent years. This study first measures the soil–water characteristic curves (SWCCs) of granular specimens to determine the influence of particle size on matric suction fr...
| Autori principali: | , , , |
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| Natura: | Articolo |
| Lingua: | English |
| Pubblicazione: |
Hindawi-Wiley
2023-01-01
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| Serie: | Geofluids |
| Accesso online: | http://dx.doi.org/10.1155/2023/8513808 |
| _version_ | 1826998538302652416 |
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| author | Cheng Pu Fengyin Liu Yuetao Li Zhaolin Zeng |
| author_facet | Cheng Pu Fengyin Liu Yuetao Li Zhaolin Zeng |
| author_sort | Cheng Pu |
| collection | DOAJ |
| description | Exploring the water retention properties of unsaturated soil from the perspective of a liquid bridge has been a popular issue in recent years. This study first measures the soil–water characteristic curves (SWCCs) of granular specimens to determine the influence of particle size on matric suction from a macroscopic perspective. Then, the internal mechanism of the influence of particle size and volumetric water content on matric suction is analyzed from the mesoscopic perspective by using the Young–Laplace (Y–L) equation to calculate matric suction between two equal spheres. The macroscopic and mesoscopic experiments both show that matric suction decreases with an increase in particle radius. Moreover, identifying the internal mechanism of SWCC from the liquid bridge perspective is only applicable when the influence of gravity can be disregarded or is in the transitional stage. The influence of volumetric water content and sphere radius on matric suction is mostly caused by the variation in the outer radius of the liquid bridge (r1) and the neck radius of the liquid bridge (r2). With an increase in volumetric water content and sphere diameter, the increasing rate of r1 is much higher than r2, and the macroscopical matric suction gradually decreases. |
| first_indexed | 2024-03-13T03:59:28Z |
| format | Article |
| id | doaj.art-db812ab8edaf4ab1a40a3ffb40b9a46c |
| institution | Directory Open Access Journal |
| issn | 1468-8123 |
| language | English |
| last_indexed | 2025-02-18T10:15:44Z |
| publishDate | 2023-01-01 |
| publisher | Hindawi-Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj.art-db812ab8edaf4ab1a40a3ffb40b9a46c2024-11-02T05:32:12ZengHindawi-WileyGeofluids1468-81232023-01-01202310.1155/2023/8513808A Trans-Scale Study on the Influence of Water Content and Particle Size on Matric SuctionCheng Pu0Fengyin Liu1Yuetao Li2Zhaolin Zeng3PowerChina Northwest Engineering Corporation LimitedXi’an University of TechnologyPowerChina Northwest Engineering Corporation LimitedXi’an University of TechnologyExploring the water retention properties of unsaturated soil from the perspective of a liquid bridge has been a popular issue in recent years. This study first measures the soil–water characteristic curves (SWCCs) of granular specimens to determine the influence of particle size on matric suction from a macroscopic perspective. Then, the internal mechanism of the influence of particle size and volumetric water content on matric suction is analyzed from the mesoscopic perspective by using the Young–Laplace (Y–L) equation to calculate matric suction between two equal spheres. The macroscopic and mesoscopic experiments both show that matric suction decreases with an increase in particle radius. Moreover, identifying the internal mechanism of SWCC from the liquid bridge perspective is only applicable when the influence of gravity can be disregarded or is in the transitional stage. The influence of volumetric water content and sphere radius on matric suction is mostly caused by the variation in the outer radius of the liquid bridge (r1) and the neck radius of the liquid bridge (r2). With an increase in volumetric water content and sphere diameter, the increasing rate of r1 is much higher than r2, and the macroscopical matric suction gradually decreases.http://dx.doi.org/10.1155/2023/8513808 |
| spellingShingle | Cheng Pu Fengyin Liu Yuetao Li Zhaolin Zeng A Trans-Scale Study on the Influence of Water Content and Particle Size on Matric Suction Geofluids |
| title | A Trans-Scale Study on the Influence of Water Content and Particle Size on Matric Suction |
| title_full | A Trans-Scale Study on the Influence of Water Content and Particle Size on Matric Suction |
| title_fullStr | A Trans-Scale Study on the Influence of Water Content and Particle Size on Matric Suction |
| title_full_unstemmed | A Trans-Scale Study on the Influence of Water Content and Particle Size on Matric Suction |
| title_short | A Trans-Scale Study on the Influence of Water Content and Particle Size on Matric Suction |
| title_sort | trans scale study on the influence of water content and particle size on matric suction |
| url | http://dx.doi.org/10.1155/2023/8513808 |
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