Monitoring of membrane structures using unmanned aerial vehicle assisted photogrammetry

Leslie Wong, Frank Courtney, Benjamin Steven Vien, Thomas Kuen, Peter Douglas, Yue Ma, Jayantha Kodikara, Wing Kong Chiu

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

High-value assets demand rapid inspection and structural assessment methodologies to ensure maximum availability and operational capabilities. In the case of large structures (e.g. aircraft wings, dams, vertical tanks, elevated highways), the ability to add non-contact measurement capabilities to unmanned aerial vehicles (UAV) has resulted in new options in structural health monitoring and assessment. Large floating covers over anaerobic lagoons in wastewater treatment plants are a type of significant structure that will benefit from the development of this form of non-contact technique. Large membranes are used as floating covers at the anaerobic lagoons at Melbourne Water's Western Treatment Plant (WTP), Werribee, Victoria, Australia. A critical function of this high value asset pertains to the harnessing of the biogas gas emitted by these lagoons. Without these covers, the biogas will be released into the environment as a damaging greenhouse gas and the opportunity to generate electricity from the biogas will be lost. Therefore, a proactive inspection and management strategy is required to ensure the integrity of the cover and its continued operation. Demonstration of the UAV assisted photogrammetry surveys conducted over the floating cover at the WTP will be the subject of this paper. The results from monthly surveillance of the covers will be discussed. It will be shown that this is a proactive technique that facilitates quantification of the state of deformation of the floating cover due to the dynamics under the covers. These dynamics are attributed to the inflow of the raw sewage, accumulation of bio-gas, "scum-berg" formation and its movement, the effects of wind or a combination of these factors.

Original languageEnglish
Title of host publicationStructural Health Monitoring 2019
Subtitle of host publicationEnabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring
EditorsFu-Kuo Chang, Alfredo Guemes, Fotis Kopsaftopoulos
PublisherDEStech Publications, Inc
Pages317-324
Number of pages8
Volume1
ISBN (Electronic)9781605956015
Publication statusPublished - 2019
EventInternational Workshop on Structural Health Monitoring (IWSHM) 2019 - Stanford, United States of America
Duration: 10 Sep 201912 Sep 2019
Conference number: 12th
http://web.stanford.edu/group/sacl/workshop/IWSHM2019/keynote.html
https://web.stanford.edu/group/sacl/workshop/IWSHM2019/proceeding.html

Workshop

WorkshopInternational Workshop on Structural Health Monitoring (IWSHM) 2019
Abbreviated titleIWSHM 2019
CountryUnited States of America
CityStanford
Period10/09/1912/09/19
Internet address

Cite this

Wong, L., Courtney, F., Vien, B. S., Kuen, T., Douglas, P., Ma, Y., Kodikara, J., & Chiu, W. K. (2019). Monitoring of membrane structures using unmanned aerial vehicle assisted photogrammetry. In F-K. Chang, A. Guemes, & F. Kopsaftopoulos (Eds.), Structural Health Monitoring 2019: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring (Vol. 1, pp. 317-324). DEStech Publications, Inc.