Practice and Research of Geosynthetic Reinforced Soil Walls in Australia - Reinforced Soil Engineering: Advances in Research and Practice - page 269

The Paraweb high-tenacity polyester straps (Fig. 14) were used exclusively as the
reinforcing elements. Crushed sandstone excavated from the route was used as
the select fill. The use of GRS walls for the M2 project has been seen as a
milestone that marks the cost-effectiveness, versatility, and strength of GRS
walls. A total of 30 GRS walls, with a total wall facing area of about 23,000 m 2 ,
was constructed under a fast-track contractual agreement. The fast-track nature of
the project means that the precasting of up to 80% of the panels was carried out
before the individual wall designs were completed. The design and construction
Figure 15 Tallest GRS wall for M2.