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Showing 1 to 14 of 14 for “"Utility Poles"”.
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Ultrasonic-Based Condition Assessment of Wooden Utility Poles
<p>More than 300 million utility poles shoulder the utility grid in the United States. However, the ineffectiveness of the current inspection process causes roughly a third of utility poles removed from the service deemed suitable for reuse. Due to the utterly essential role of the power …
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Suitability of Casuarina equisetifolia as utility poles in Senegal
… equisetifolia</i> trees grown in Senegal as utility poles was investigated as follows: (1) to determine the longitudinal air permeability of the species with regard to its treatability; (2) to determine the treatability of the wood using a full-cell process; (3) to determine the mechanical …
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Detection and assessment of wood decay – glulam beams and wooden utility poles
… inspection methods on wooden glulam beams and utility poles. All beams and poles examined where composed of Douglas-fir. The report begins with a description of the structure of trees, the mechanical behavior of wood subjected to rot, and current utility pole inspection methods. Background …
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Condition assessment of in-service timber utility poles utilizing advanced digital signal processing and multi-sensors array
Timber utility poles play a significant role in the infrastructure of Australia as well as many other countries. There are over 5 million timber utility poles currently used in Australian energy networks, which are more than 80% of total utility poles in the network. Due to the advanced age of …
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Spatial Analysis of Soil Creep Rates on Mount Sequoyah, Fayetteville Arkansas
… cooling cycles.</p> <p>By measuring the tilt of utility poles, we determined multiple causes of soil creep. The variables that are believed to affect soil creep are elevation, aspect, and slope insolation. By measuring these variables, we were able to see that utility poles on higher slopes, and …
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Biology and conservation of the endangered Bahama Swallow (Tachycineta cyaneoviridis)
… woodpecker-excavated cavities in pine snags and utility poles, and that swallows nesting in pine snags had higher fledging success (92%) than those nesting in utility poles (50-62%). Using a cavity nest-web approach, I assessed how swallows interact with cavity-nesting birds and resources on …
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Rot detection in wooden poles using electrical impedance tomography
… a nondestructive method of testing wooden utility poles for rot and termite damage. The nondestructive method that was chosen for this project was that of electrical impedance tomography in which an image of the permittivity in a cross section would be created from impedance measurements …
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Characterization and applications in infrastructure of steel reinforced polymer and grout composites
… reinforced concrete (RC) members and wood utility poles. The material constants for single-ply SRP and SRG were experimentally determined from coupon tensile tests and torsion tests. The flexural performance of RC beams with externally bonded SRP and SRG has been investigated experimentally …
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Picking Up the Pieces
Over time wooden and metal objects, such as utility poles, construction lumber, parts from cars, trucks, farm equipment, and heavy machinery, and even an old abandoned car, have become unserviceable and discarded. Lying useless until discovered by the creative explorer, they are reclaimed and …
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Predicting rejection rates of electric distribution wood pole assets
… system includes approximately 2.4 million wood utility poles. The Pole Test & Treat (PTT) program at PG&E is responsible for inspecting these poles, prolonging their service life through the use of chemical treatments or structural reinforcements, and identifying poles that need to be replaced. …
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Investigation of W-Beam Energy-Absorbing Guardrail End Terminal Safety Performance Using Finite Element Modeling
… fixed object alongside the road (e.g., trees, utility poles, traffic barriers, etc.). However, guardrails cause 10% of deaths of vehicle-to-fixed object crashes which has attracted attention in the highway safety community on the vehicle-based injury criteria used in guardrail regulations. The …
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Geolocation of Utility Assets Using Omnidirectional Ground-Based Photographic Imagery
… for similar purposes, and can readily identify utility assets, for example, transformers, if appropriate training data are provided. Further human intervention would only be necessary in a small fraction of cases, where very high uncertainty is flagged by the system. The feasibility of the …
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Resilience of power distribution systems under extreme weather conditions
… research investigates the effects of failures of utility wood poles on the reliability and resilience of electric distribution systems. The probability model of wood pole failures is used to develop an outage prediction model that serves to identify vulnerable regions of the network. Following …
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A study on the behaviour of guided wave propagation in utility timber poles
… The round timber is suitable for electricity poles, wharfs, piles, bridge piers, etc. There are nearly 7 million utility poles in the current network in Australia, in which around 5 million timber poles are used for distribution of power and communications. The utility pole industry in …