On the development and employment of new monolite iron-concrete units in construction and turnaround of offshore oil-gas hydrotechnical facilities

The paper deals with the development and employment of a new method providing more reliable joint of metallic consolidation piles with upper constructions of offshore hydrotechnical facilities operated in the Caspian Sea. With this purpose, new monolite iron-concrete units providing more reliable joint, particularly in the points of joints of consolidation piles and supporting collars of offshore piers and pier areas (in the inner space of collar structure) considering design features of mentioned facilities are developed and applied. The employment of these monolite iron-concrete units in hydrotechnical facilities operated in the offshore conditions has a great significance in the context of the extension of their service life after the turnaround up to thirty years, the assurance of their reliability and minimization of possible risks in the operation process. Nevertheless, the paper presents the fragments of the objects of the special state significance where developed monolite iron-concrete units are applied, and the arguments on the role of these units in the assurance of durability, hardness and reliability of these facilities provided as well.