DRY DOCK Russian patent published in 2010 - IPC E02B1/00 E02D1/00 

FIELD: construction.

SUBSTANCE: dry dock consists of lengthy pit open under water, bottom of which with side vertical walls is concreted under water and is dried with the help of drain tubes, and vertical walls are arranged with back fill from sand-gravel filter laid under concreted bottom and pumps. Bottom of pit in cross section is arranged along concave arc of radius circumference and with angle of elastic half-contact of cylindrical bottom of dock with ground base identified by given dependencies, with pressure of base structural strength at stretching and critical pressure under centre of bottom cylindrical surface in underlying base both identified by given dependencies. Angle of dock cylindrical bottom elastic half-contact with peaty base with account of specific adhesion c and angle of inner friction of underlying base φ. At the same time given dependence is used to calculate depth of pit under centre of dock cylindrical bottom, as well as elastic shrinkage of dock cylindrical bottom, with Poisson coefficient µ₀ and module of general deformation E₀ of base under bottom cylinder.

EFFECT: increased operational reliability.

10 dwg