STEEL TANK UNDERLAY REHABILITATION IN ACCORDING TO THE TECHNICAL INSPECTION

Y. Spector, O. Denisov, A. Shchepetov, V. Alexandrov, A. Gruzdev

Аннотация


For oil and oil products storage tank batteries are equipped with the vertical cylindrical steel tanks with the volume capacity up to 50 thousand m3. The tanks are the complicated engineering constructions, extremely sensitive to the differential settlements of soil bases which provoke lack of parallelism, rakes and a tank form change. When a tank hydraulic testing, the differential settlements and rakes often occur that exceed the standard values. Tank bases and pads evaluation includes settlement determination, engineering- geological survey, technical state inspection. According to the evaluation results, the conclusion on the possibility of the subsequent tank service and, if necessary, the recommendations on repair and reconstruction of the base are given. The main methods of a tank base repair and reconstruction are soil stabilisation, pads strengthening, penetration of piles of different construction.

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Литература


>1. Spector, Y.I., Babin, L.A., Denisov, O.L. Elimination of foundation base termination criterion by means of soil thermal strengthening with the microwave energy //Proceedings 7th International Conference and Exhibition on Piling and Deep Foundation. Vienna, Austria, 15-17 June, London: Westrade Group Ltd. 1998. - P.511-515.

2. Spektor, Y.I., Shchepetov, A.E. and Absalov, K.A. Experimental investigations of interaction of soil and geosynthetics used for reinforcing tank bases and pipelines embankments //Proceedings 8th International Congress International Association for Engineering Geology and the Environment. Vancouver, Canada, 21-25 September, Rotterdam: A.A.Balkema Publishers, 1998 - P.3379-3382.

3. Spektor, Y.I., Denisov, O.L., Abdullin, I.B., Lyubushkin, V.V., Absalov, K.A. New methods of computation the reinforced and thermally strengthened soil bases of pipeline transport objects //Proceedings 12th European Conference on Soil Mechanics and Geotechnical Engineering. Amsterdam, The Netherlands, 7-10 June, Rotterdam: A.A.Balkema Publishers, 1999. - Vol.2. - P.941-948.


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