Abstract
The flexible metal facings installed in the geogrid-reinforced soil wall prevent spilling of the backfill and restrain the backfill. Although the design method of the facings assumes that the horizontal earth pressure acting on the facings is equal to the weight of the arc-shaped backfill, the validation of this method has not been sufficiently verified. In this study, model tests focusing on the behavior of the backfill when the facings were opened were conducted to clarify the earth pressure acting on the facings. The results showed that the backfill slid out in a wedge shape, and the slip surface angles were affected by the internal friction angle of the backfill, not the wall slope or overburden. The calculation method for the horizontal earth pressure was proposed based on the test results.
https://ror.org/04j7mzp05 
