Irughe and Ehigiator
Greener Journal of Science, Engineering and Technology Research Vol. 3 (1), pp. 019-025, January 2013
Geospatial analysis of deformable structure under continuous loading
R. Ehigiator Irughe1*, M.O. Ehigiator2
1Siberian State Geodesy Academy, Department of Engineering Geodesy and GeoInformation Systems, Novosibirsk, Russia.
2 Faculty of Basic Science, Department of Physics and Energy, Benson- Idahosa University, Benin City, Nigeria.
*Corresponding Author’s Email: raphehigiator @ yahoo.com
A tropical Engineering Structure that is subjected to loading and offloading is above surface vertical circular tanks. Cylindrical storage Tanks are commonly used in oil and gas industries for storing crude oil, petroleum products, etc. and for storing water in public water distribution systems. Such tanks require periodic surveys to monitor long-term movements and settlements of the foundation or short-term deflection, deformation of the structures and early warning. One of the most effective geometric parameters of circular vertical tanks is determining its out of roundness, distortion and the deformation as a result of age. To ensure the security of civil engineering structures, it is necessary to carry out periodic monitoring of the structures. The deformation monitoring scheme consist of measurements made to the monitored tank from several monitoring stations (occupied stations), which were established around the tanks. This paper attempts to evaluate the monitoring-performance of a reflectorless total station according to loading. For this purpose, the defining parameters of a plane are determined through a least squares estimation, by using 3-Dimensional coordinates derives by the application of the intersection technique.
Keywords: Monitoring, deformation, diameter, oil volume, intersection, accuracy, oil tanks.
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