SYSTEM OF STABILISATION OF SEA PLATFORMS MOUNTED ON GRAVITATIONAL FOUNDATIONS

摘要

FIELD: mining.;SUBSTANCE: system for stabilisation of sea platform mounted of gravitation foundation and anchored at sea bottom consists of multitude of sets of upper blocking elements installed on keel at lower part of platform, of great number of caissons installed at sea bottom, of great number of removable insertions each installed in each of caissons and of set of lower blocking elements in each insertion. Each set of the lower blocking elements is designed to engage with one of sets of the upper blocking elements by means of block system, when the keel is set above caissons. Insertions correspond to a tight attached to the keel cementing material pumped into insertions through the keel. The system stabilises the platform relative to forces of lateral shear and also facilitates easy removal of the platform off the caissons with insertions attached to the keel by applying upper lifting force. Further the platform can be transported and mounted of the second set of caissons arranged at the second site of sea bottom.;EFFECT: group of inventions facilitating mounting of platform ensuring good resistance to lateral shear forces and eliminating difficult and expensive operations for installation of shear skirts.;19 cl, 9 dwg