ABSTRACT
The failure of a historical dry laid masonry gravity wall on a tertiary road in Hereford provided difficulties for the local authority in maintaining traffic access along the existing road with a guaranteed level of stability whilst enabling the retaining wall to be reconstructed with minimal visual impact and upgrading the original vehicular restraint system to meet more exacting modern standards.
This paper will look at the design, construction and detailing of the solution proposed to the client's Engineer WSP by Huesker and Dywidag as well as exploring similar historical solutions to highlight the variety of face finishes achievable and demonstrating the clear advantages hybrid solutions offer to geotechnical asset owners. The paper will also review the limited design advice available for such hybrid solutions and make recommendations for the expansion of existing design codes to specifically address the use of hybrid anchored and reinforced soil solutions.
