Fast vibration characteristics analysis of an underwater shield tunnel using the accelerometer network enhanced by edge computing

Chen dong Li, Wei Zhang, Hong Hu Zhu, Peng Wang, Jia Tao Ren, B F Spencer

Research output: Contribution to journalArticle

Abstract

Edge computing can reduce the latency induced by the long communication path from end users to the cloud center in the Internet of Things (IoT). In this paper, we implement a vibration test of an underwater shield tunnel using a wired accelerometer network enhanced by edge computing to verify a vibration edge computing architecture that we propose. The cloudlet for edge computing can temporarily store raw data and analyze them simultaneously. It can also serve as the hub of the accelerometer. The acquired acceleration data and their results can be viewed on mobile devices in real time from the cloudlet. The results of measurements show that the amplitude of vibrations of components of the tunnel decreased distinctly from the pavement lane to the segment lining and the base. Moreover, the dominant frequency of a low-frequency band was determined by the tunnel–soil interaction, and represents the overall vibration characteristics of the tunnel–soil system along the Z-axis. The quickly analyzed online results agreed well with those of an offline simulation in terms of general trends. This study highlights the potential of the proposed vibration edge computing architecture for underwater shield tunnels.

Original languageEnglish (US)
Pages (from-to)52-61
Number of pages10
JournalMeasurement: Journal of the International Measurement Confederation
Volume141
DOIs
StatePublished - Jul 2019

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accelerometers
Accelerometers
tunnels
Tunnels
vibration
Linings
Pavements
Mobile devices
Frequency bands
vibration tests
pavements
hubs
linings
Communication
communication
low frequencies
trends
simulation
interactions

Keywords

  • Accelerometer network
  • Edge computing
  • Internet of Things
  • Shield tunnel
  • Vibration characteristics

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

Fast vibration characteristics analysis of an underwater shield tunnel using the accelerometer network enhanced by edge computing. / Li, Chen dong; Zhang, Wei; Zhu, Hong Hu; Wang, Peng; Ren, Jia Tao; Spencer, B F.

In: Measurement: Journal of the International Measurement Confederation, Vol. 141, 07.2019, p. 52-61.

Research output: Contribution to journalArticle

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