Study on reinforcement wall of geogrid through model test on slope

Abstract

In order to research reinforcement wall of geogrid multilevel slope working mechanics and mechanical characteristics, a launder model was built indoors with 8m length, 4m width and 4.5m height. The model tested the soil pressure behind panel, the soil pressure behind reinforcement wall, the each stratified soil pressure of reinforcement, the stress of foundation, tendsion of geogrid and displacement of wall. It is found that the inner soil pressure of reinforcement discord with the conventional soil-pressure theory calculated value, the distribution of soil pressure closely relate to the foundation condition and the height of reinforcement through the analyses. It is shown that the influence of the mechanical characteristics of reinforcement and displacement of wall are examined on the displacement of reinforcement foundation. The stress of retaining foundation present V-mode distribution and displacement of wall present trend to lower drum while it having major displacement. The stress of retaining foundation present bias distribution and displacement of wall present trend to tensor drum while it having minor displacement. © 2008 Science Press Beijing and Springer-Verlag GmbH Berlin Heidelberg Geotechnical Engineering for Disaster Mitigation and Rehabilitation.