Analysis of roadbed destabilization causes on sections with thaw underground ice and reinforcement reconstruction measures

Abstract

The roadbed on over-wet permafrost and underground ice sections requires a thorough examination after a long-term exploitation period. Its strengthening design requires an individual technological approach. The paper considers two examples. The first one is located on the 28th km section of the Chulman passing siding entrance, and the second one is on the 59th km of the Amur-Yakutsk Mainline. The causes of the roadbed deformation are determined by the analysis of different surveys, special engineering and geological methods as well as the geometry car ongoing data. Some new technological design solutions that are patented and introduced on working sites are covered in the paper.