Monitoring strain evolution in water-sand systems using distributed acoustic sensing for geohazard early warning
Yingping Li, Min Sun, Yingcai Zheng, David Li, Lianjie Huang · 2025
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Description
Yingping Li, Min Sun, Yingcai Zheng, David Li, and Lianjie Huang listen to wet sand through a fiber-optic cable to catch the strain changes that precede landslides and dam failures. Their 2025 study embeds distributed acoustic sensing in a sand-filled glass cylinder. Rain hazards begin when water quietly rearranges stress inside soil, long before anything slides.
In dry sand the sensors caught uneven water movement and measured infiltration at millimeter scale. In wet sand they tracked rising water levels, delayed strain peaks after full saturation, and sharp strain jumps during drainage. The full wetting cycle wrote itself into the fiber's signal. The authors present the method as real-time and low-cost monitoring for rainfall geohazards. Field deployment is the obvious next step after the bench proof.
Catalog record
| CREATOR | Yingping Li, Min Sun, Yingcai Zheng, David Li, Lianjie Huang |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 60 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |