Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Application Potential of Ultra-Wide Band Radar for Detecting Buried Obstructions in Construction
The need of sustainable urbanization drives construction engineers to explore the underground space to improve quality of life, meet with the challenges of population growth, and satisfy increasing infrastructure demands for utility pipelines and subways. However, unexpected obstructions or heterogeneous ground conditions make underground construction a risky operation, increasing construction cost while presenting additional safety hazards. Examples include (1) high pressure underground water stops a tunnel boring machine (TBM); (2) breaking an existing water main leads to flooding the downtown area; and (3) hitting an unexpected gas line causes an explosion. To a certain extent, all of those accidents can be attributable to the lack of cost-effective technology for detecting buried underground obstacles. The current practices such as geotechnical test holes and ground penetration radars (GPR) have their limitations in revealing underground situations. Meanwhile, the emerging technology of ultra-wide band (UWB) radar holds the potential to provide a cost-effective, non-destructive detection method. In this paper, a critical review of current practices and established methodologies is given. The functionality, working mechanism and application potential of UWB radar technologies in underground construction are described. Preliminary lab testing results are presented. Research findings are summarized and further research plans are discussed in conclusions.
Application Potential of Ultra-Wide Band Radar for Detecting Buried Obstructions in Construction
The need of sustainable urbanization drives construction engineers to explore the underground space to improve quality of life, meet with the challenges of population growth, and satisfy increasing infrastructure demands for utility pipelines and subways. However, unexpected obstructions or heterogeneous ground conditions make underground construction a risky operation, increasing construction cost while presenting additional safety hazards. Examples include (1) high pressure underground water stops a tunnel boring machine (TBM); (2) breaking an existing water main leads to flooding the downtown area; and (3) hitting an unexpected gas line causes an explosion. To a certain extent, all of those accidents can be attributable to the lack of cost-effective technology for detecting buried underground obstacles. The current practices such as geotechnical test holes and ground penetration radars (GPR) have their limitations in revealing underground situations. Meanwhile, the emerging technology of ultra-wide band (UWB) radar holds the potential to provide a cost-effective, non-destructive detection method. In this paper, a critical review of current practices and established methodologies is given. The functionality, working mechanism and application potential of UWB radar technologies in underground construction are described. Preliminary lab testing results are presented. Research findings are summarized and further research plans are discussed in conclusions.
Application Potential of Ultra-Wide Band Radar for Detecting Buried Obstructions in Construction
Zou, Junhao (Autor:in) / Lu, Ming (Autor:in) / Karumudi, Rambabu (Autor:in) / Shen, Xuesong (Autor:in)
Construction Research Congress 2012 ; 2012 ; West Lafayette, Indiana, United States
Construction Research Congress 2012 ; 868-878
17.05.2012
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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