原文传递
NPA geocell for a railway line repair in a permafrost region
| 题名： | NPA geocell for a railway line repair in a permafrost region |
| 正文语种： | eng |
| 作者： | Sanat Pokharel;Marc Breault |
| 摘要： | The NPA geocell-reinforced design of the railway embankment proved to be a successful solution for maintaining and strengthening the railway structure. In this project, it allowed the railway that was nonoperational for almost two years to start up operations again within a short time frame after the rehabilitation work started. The time required for construction was enough to repair the washout location, because half of the granular infill material was taken from the washout location itself, a fact made possible by the geocell reinforcement. The geocell reinforcement controlled lateral movement of subballast, which was a poorly graded, sandy pit run gravel, and controlled the settlement and damage to the permafrost. It also controlled the erosion of the embankment slopes. The design saved construction time and money. Based on more than two years of operation of the railway line, this article also recommends this design as a viable method for future transportation infrastructure development in the permafrost region and other similar areas. |
| 出版年： | 2021 |
| 期刊名称： | Geosynthetics |
| 卷： | 39 |
| 期： | 3 |
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