生態農業：自然解方修復極端氣候退化坡地之生態地景【水土保持學系/陳樹群特聘教授】
| 論文篇名 | 英文：The Application of Wireless Underground Sensor Networks to Monitor Seepage inside an Earth Dam |
| 期刊名稱 | Sensors |
| 發表年份,卷數,起迄頁數 | 2023,23(8), 3795 |
| 作者 | Liang, Min-Chih; Chen, Hung-En; Tfwala, Samkele S.; Lin, Yu-Feng; Chen, Su-Chin(陳樹群)* |
| DOI | 10.3390/s23083795 |
| 中文摘要 | 土壩或河堤容易因內部滲流、管湧和侵蝕而變得不穩定，這可能導致災難性的破壞。因此，在大壩倒塌之前監測滲流水位是一項重要任務，用於提前警告大壩破壞。目前，幾乎沒有使用無線地下傳輸來監測土壩內部含水量的監測方法。實時監測土壤含水量變化可以更直接地確定滲流的水位。埋在地下的傳感器的無線傳輸需要通過土壤介質進行信號傳輸，這比傳統的空氣傳輸更為複雜。因此，本研究建立了一個無線地下傳輸傳感器，通過跳點網絡克服了地下傳輸的距離限制。對無線地下傳輸傳感器進行了一系列可行性測試，包括點對點傳輸測試、多跳地下傳輸測試、功率管理測試和土壤含水量測試。最後，進行了現地滲漏測試，以應用無線地下傳輸傳感器來監測土壩破壞前的內部滲漏水位。研究結果顯示，無線地下傳輸傳感器可以實現對土壩內部滲流水位的監測。此外，結果優於傳統的水位計。在氣候變遷時代，由於氣候變遷導致前所未有的洪水事件，因此早期預警系統變得至關重要。 |
| 英文摘要 | Earth dams or embankments are susceptible to instability due to internal seepage, piping, and erosion, which can lead to catastrophic failure. Therefore, monitoring the seepage water level before the dam collapses is an important task for early warning of dam failure. Currently, there are hardly any monitoring methods that use wireless underground transmission to monitor the water content inside earth dams. Real-time monitoring of changes in the soil moisture content can more directly determine the water level of seepage. Wireless transmission of sensors buried underground requires signal transmission through the soil medium, which is more complex than traditional air transmission. Henceforth, this study establishes a wireless underground transmission sensor that overcomes the distance limitation of underground transmission through a hop network. A series of feasibility tests were conducted on the wireless underground transmission sensor, including peer-to-peer transmission tests, multi-hop underground transmission tests, power management tests, and soil moisture measurement tests. Finally, field seepage tests were conducted to apply wireless underground transmission sensors to monitor the internal seepage water level before an earth dam failure. The findings show that wireless underground transmission sensors can achieve the monitoring of seepage water levels inside earth dams. In addition, the results supersede those of a conventional water level gauge. This could be crucial in early warning systems during the era of climate change, which has caused unprecedented flooding events. |
| 發表成果與本中心研究主題相關性 | 應用無線地下傳輸感測器來監測土壩或河堤，可以在壩體潰決前提供預警，有助於提前預防災害發生。特別是考慮到河堤周圍多為農業發展區域，因此潰決時可能產生的洪水對農民和農業產生重大影響。因此，提前預警系統對於實現永續農業發展至關重要。 |
