Analysis of the results of the survey of reinforced concrete structures of port facil ities (Sakhalin Island 1927–2018.)

Abstract

A survey of the structures of port facilities erected on the coast of the south of Sakhalin Island over the past 100 years: from the 20s of the last century to 2018 was conducted. A distinctive feature of the operating conditions of port facilities is the climatic conditions of the coast in the south of the island – the western coast of the island is washed by the waters of the Sea of Japan, the rest of the coast is washed by the waters of the Sea of Okhotsk. The latter belongs to the number of cold subarctic seas and is the coldest of the Far Eastern. The simultaneous influence of the cold Sea of Okhotsk and the warm Sea of Japan is especially evident in the southern part of the island. Climatic peculiarity of the southern part of the coast of Sakhalin is reflected in the operating conditions of the structures of port facilities – the southern part of the Sea of Okhotsk and the northern part of the Sea of Japan never freeze. Severe hydrometeorological conditions of operation of port facilities on the southern coast of Sakhalin are most clearly manifested in winter – low negative temperature in winter (up to -20 °C); choppy sea – the average frequency of excitement is 35–50 %, the height of the waves reaches 4–6 m; the water temperature on the sea surface is about -1 °C; the salinity of the water on the surface is 31–33 ‰.