4.9 CURRENT STATE OF TECHNOLOGY AND RATIONAL METHODS OF STRENGTHENING THE ROADBED OF RAILWAYS ON SOFT SOILS IN DEVELOPED COUNTRIES OF THE WORLD

Abstract

This article discusses methods for strengthening the roadbed of railways using modern geosynthetic materials. It also presents the main types and functions of geotextiles and volumetric geogrids.

Key words: method, way, weak soil, reinforcement of roadbed, technology, geotextile, volumetric geogrid, reinforcements, woven, non-woven.

The development and improvement of railway transport, increasing its efficiency can be ensured with a high level of reliability of the railway track, operational stability of its supporting base - the roadbed, which is a complex technical structure erected and being erected from sandy soils of complex origin.

Analysis of existing works shows that the stress state of the roadbed has not been studied widely enough, and little attention has been paid to studies of the deformability of soil structures reinforced with geosynthetic materials. There is no developed methodology for calculating the stress-strain state of the roadbed reinforced with geosynthetic materials, which will not make it possible to reasonably recommend certain structures for strengthening the slopes of the roadbed using geosynthetic materials in the construction and reconstruction of railways [1,2,3,4].

The relevance of developing such a methodology is increasing in connection with the tightening of the resource-saving policy carried out on railways.