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Engineers tested several advanced sensors that can collectively measure strain, temperature, movement and leakage along a novel hazard-resilient pipeline that is being tested for earthquake fault-rupture performance. The results could offer benefits to urban planners and municipal leaders.
Engineers at the Cornell Geotechnical Lifelines Large-Scale Testing Facility tested the sensors that were developed by researchers at the University of California, Berkeley, and the University of Cambridge Centre for Smart Infrastructure and Construction.
The sensors were installed along a 40-foot section of pipeline produced by IPEX. The pipe uses a molecularly-oriented polyvinylchloride material and is engineered to stretch, bend, and compress as it withstands ground deformation similar to that occurring during earthquakes, floods, and construction-related activity.
The pipe was able to accommodate 50% more ground deformation than an earlier design based on modifications Cornell suggested in 2013.
The sensors provide feedback to companies like IPEX that want to advance the engineering behind new products and improve systemwide performance.
"The vision we have is that our future infrastructure looks after itself by sensing and adapting to the changing environment," says Kenichi Soga, professor at Berkeley and principal investigator for the Berkeley and Cambridge teams. "Rapidly developing sensor technologies and data analytics give us the opportunity to make this happen."
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