Use of geogrid in the construction of railroads
Abstract
Over the last three decades geogrid has been used as a reinforcement in the construction of several earth- retaining and earth-supported structures. In more recent times it has been used as reinforcement of railroad beds to improve its performance and structural integrity. A review of several published field and large-scale laboratory test results relating to the reinforcing ability of geogrids is presented. Also included are a number of case histories from several countries where layer(s) of geogrid were used in ballast and sub-ballast layers and on soft subgrade to reduce track settlement and, hence, the frequency of maintenance.
- Publication:
-
Innovative Infrastructure Solutions
- Pub Date:
- December 2016
- DOI:
- Bibcode:
- 2016InnIS...1...15D
- Keywords:
-
- Ballast;
- Bearing capacity improvement;
- Geogrid;
- Maintenance reduction;
- Reinforcement;
- Subgrade