THE PROBLEM OF SOIL HEAVING IN PIPELINE CONSTRUCTION AND METHODS FOR ITS ELIMINATION

Abstract

Background The article is devoted to the actual problem of construction and operation of pipelines in difficult geological conditions. The work analyzes the interaction of permafrost soils with underground structures, studies the heaving of soils - the ability of water-saturated soils to increase their volume when frozen. Aims and Objectives The aim of the work is to analyze the existing methods and means of protecting the linear part of the main pipelines in the areas where heaving soils are spread. Objectives: o study of the peculiarities of construction and operation of pipelines in areas where heaving soils are spread; o analysis of existing methods of preventing heaving, their advantages and disadvantages; o determination of the most effective ways to protect main pipelines from soil deformations. Results It was revealed that the problems associated with the phenomenon of changes in the volume of soils at temperature extremes remain relevant to this day. Despite the wide range of means of protecting pipelines from soil deformations, each of the presented ones has a number of significant disadvantages, which limits their scope. Since the dependence of the radiating forces on the time and temperature of the environment and the influence of these forces on underground pipelines have been studied rather poorly by now, the need for further study of changes in the characteristics of soils with a temperature difference has been determined, as well as computer modeling of the stress-strain state of structures in contact with permafrost soils.