Smart rock technology for real-time monitoring of bridge scour and riprap effectiveness – design guidelines and visualization tool.

Details

• Creators:
  Chen, G. D. ; Tang, Y. ; Chen, Z. C. ; Guo, C. R. ; Bao, Y. ; Fan, L. T. ; Hu, X. Y. ; Klegseth, M. ; Li, Z. C.
• Corporate Creators:
  Missouri University of Science and Technology
• Corporate Contributors:
  Missouri. Department of Transportation ; California. Department of Transportation ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
• Subject/TRT Terms:
  • Scour
  • Riprap
  • Remote sensing
  • Real time information
  • Smart rocks
  • scour depth
  • rip-rap protection
  • magnetic field
  • localization algorithm
• Publication/ Report Number:
  OASRTRS-14-H-MST
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
• Abstract:
  This study aims to further develop and demonstrate the recently-proposed smart rock technology for ; scour depth and protection effectiveness monitoring. A smart rock is one or two stacked magnets encased ; in a concrete sphere with a specially-designed rotational mechanism. Design guidelines, rotational ; mechanisms, remote measurement tools and localization algorithms of smart rocks were developed and ; validated at three bridge sites. The effect of steel reinforcement in bridge piers/deck on the orientation of ; gravity-controlled magnets was negligible. The localization accuracy with a single smart rock met a ; general requirement of less than 0.5 m in engineering applications. The spherical smart rock placed ; directly on the riverbed of the Roubidoux Creek successfully demonstrated its movement to the bottom ; of scour hole during the December 27, 2015, flood. Those deployed in the Waddell Creek and the ; Gasconade River were washed away and thus replaced with smart rocks embedded in deposits such that ; their top is in flush with the riverbed for improved stability under water current. For rip-rap effectiveness ; monitoring, polyhedral smart rocks are recommended to increase their interlock with other natural rocks.
  More +
• Format:
  PDF
• Funding:
  OASRTRS-14-H-MST
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32116/dot_32116_DS1.pdf
• File Type:
  [PDF - 5.14 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:ce701e492cbfe9c12f906b7889aa3fb5c70a36af8cb17f8a3992d0ec5f66a19d