Introduction of an example of geogrid steep-slope reinforced-earth-wall work executed in a zigzag pattern

Abstract

The use of geogrid steep-slope reinforced earth walls constructed using steel wall-surface material in road embankment work, is spreading rapidly. In Japan, more than 1, 000 such works have been executed with the reinforcement material (geogrid) arranged in a zigzag pattern. No significant deformation has been caused by the use of the zigzag pattern. This pattern enables all wall-surface material to be connected to the main reinforcement material (geogrid). This allows rational design and execution by eliminating the need for wall-surface stabilization reinforcement. This report contains the following information: ·Explanation of the zigzag pattern·Introduction of a design and an execution case