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The Application of Wireless Underground Sensor Networks to Monitor Seepage inside an Earth Dam.

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  • معلومة اضافية
    • المصدر:
      Publisher: MDPI Country of Publication: Switzerland NLM ID: 101204366 Publication Model: Electronic Cited Medium: Internet ISSN: 1424-8220 (Electronic) Linking ISSN: 14248220 NLM ISO Abbreviation: Sensors (Basel) Subsets: PubMed not MEDLINE; MEDLINE
    • بيانات النشر:
      Original Publication: Basel, Switzerland : MDPI, c2000-
    • نبذة مختصرة :
      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.
    • References:
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      Sensors (Basel). 2018 Aug 29;18(9):. (PMID: 30158501)
      Sensors (Basel). 2019 Jul 23;19(14):. (PMID: 31340549)
      Sensors (Basel). 2019 Jan 19;19(2):. (PMID: 30669487)
      Sensors (Basel). 2020 Jul 09;20(14):. (PMID: 32660017)
      Healthc Inform Res. 2017 Jan;23(1):4-15. (PMID: 28261526)
      Sensors (Basel). 2021 Mar 01;21(5):. (PMID: 33804524)
      Environ Monit Assess. 2018 Jul 23;190(8):483. (PMID: 30039214)
    • Grant Information:
      111-2634-F-005-001 National Science and Technology Council, Taiwan; 109-2622-M-005-002 Ministry of Science and Technology, Taiwan
    • Contributed Indexing:
      Keywords: LoRa; multi-hop transmission; seepage in earth dam; wireless transmission
    • الموضوع:
      Date Created: 20230428 Date Completed: 20230430 Latest Revision: 20230430
    • الموضوع:
      20240628
    • الرقم المعرف:
      PMC10143715
    • الرقم المعرف:
      10.3390/s23083795
    • الرقم المعرف:
      37112135