In-Pipe Stress-Wave-Based Detection of Voids Behind Concrete Sewer Pipes

Hengameh Noshahri*, Edwin Dertien

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

To identify voids around underground concrete sewer pipes, we investigate an automated in-pipe detection method. This method uses a robotic platform with a mechanical impactor to generate non-destructive stress waves at any angular position on the pipe's inner circumference. The resulting acoustic waves are recorded with a microphone and are analyzed to make a void location map around the pipe. To characterize the method, we developed numerical models where we examine the influence of void width, height, and shape, and the thickness of the pipe and the presence of reinforcement in the pipe on the void detection. We validated the proposed method by conducting experiments inside a concrete pipe with custom-made voids, and differently compacted areas in the pipe’s surrounding. The results showed that the method was able to detect voids and areas with less compacted sand around the pipe.

Original languageEnglish
Title of host publicationProgressive and Integrative Ideas and Applications of Engineering Systems Under the Framework of IOT and AI
Subtitle of host publicationProceedings of 2nd International Conference on Intelligent Systems Design and Engineering Applications
EditorsYongsheng Ma
Place of PublicationSingapore
PublisherSpringer
Pages3-15
Number of pages13
ISBN (Electronic)978-981-99-6303-4
ISBN (Print)978-981-99-6302-7
DOIs
Publication statusPublished - 31 Oct 2023
Event2nd International Conference on Intelligent Systems Design and Engineering Applications, ISDEA 2023 - Okayama, Japan
Duration: 12 May 202314 May 2023
Conference number: 2

Publication series

NameLecture Notes in Electrical Engineering
Volume1076 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference2nd International Conference on Intelligent Systems Design and Engineering Applications, ISDEA 2023
Abbreviated titleISDEA 2023
Country/TerritoryJapan
CityOkayama
Period12/05/2314/05/23

Keywords

  • 2024 OA procedure
  • condition assessment
  • finite element analysis
  • robotic inspection
  • sewer pipes
  • underground voids

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