Validation of JSC “Troitsa” berths bollards in the “Chayka” port of Severodvinsk

Abstract

Berthing equipment of two berths of JSC “Troitsa” is considered. They are “Berth for petroleum products transshipment” and “Reinforced concrete berth with crane tracks” of “Chayka” port (Severodvinsk). The berths were put into operation half a century ago. Due to the regulatory service life expiration, the Scientific Research Association “Pleiada” LLC (Novorossiysk) carried out in 2021 a theoretical calculation to determine the bearing capacity of bollards. The purpose of the planned research is to check the safe functioning of the available mooring devices in the existing conditions of berthing facilities operation. The object of research is non-standard mooring bollards, for which there was no documentation on operational control during construction and commissioning certificates. The process of changing the technical condition and determining the bearing capacity of the bollards is considered as the subject of the research. It has been established that the mooring bollards of the studied berths are suitable for operation to ensure the mooring of vessels that do not exceed the design parameters and comply with the requirements of subparagraph (a) of paragraph 191 of the technical regulations on the safety of maritime transport facilities dated August 12, 2010 No. 620 (as amended on October 7, 2019). The results of organoleptic and instrumental examinations using a high-precision electronic dynamometer ACD/1R-250/7I-2 are presented. It is concluded that a correct assessment of the berthing equipment technical condition is achieved with proper organization of the expert service in combination with continuous deformation monitoring.