Journal of Emerging Trends in Engineering and Applied Sciences: Research Areas

Abstract:
Above surface vertical circular tanks are commonly used in 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 deflections and deformation of the structures. One of the most effective geometric parameters of circular vertical tanks is determining it's 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. To develop a reliable and cost effective monitoring system for the storage oil tanks, the deformation monitoring scheme consisted of measurements made to the monitored tank from several monitoring stations (occupied stations), which were established around the tanks. The circular cross section of the oil storage tanks were divided into several monitoring points distributed to cover the perimeter of the cross section. These monitoring points (studs) were situated at equal distances on the outer surface of the tanks and located around the tank base . Geodetic instruments were setup at these monitoring stations (occupied stations) and observations carried out to determine the coordinates of monitoring points on the tank surface.

Keywords: monitoring, deformation, diameter, oil volume, intersection, accuracy, oil tanks.

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