The old retaining wall (which failed) was constructed on soils that were sliding downhill! The rock was too deep to put the new retaining wall on the bedrock, so we drilled piers down to the bedrock to stop the hill from sliding and to support the new retaining wall.
This video shows you how to prevent a retaining wall failure when there are sliding soils!
Global Stability is the stability of the hillside ABOVE and BELOW a retaining wall. By it's very existence, a retaining wall changes the shape of a hillside. These changes should be addressed by the Engineer and Contractor to determine if the hillside is stable. Take a look at these sketches, photos and video:
A complete retaining wall design analyzes wall stability and Global Stability. One of our recommended software programs for global stability is Gslope!
GSLOPE allows geotechnical engineers to carry out limit equilibrium slope stability analysis of existing natural slopes, unreinforced man-made slopes, or slopes with soil reinforcement. The program uses Bishop’s Modified method and Janbu’s Simplified method. GSLOPE allows either method to be applied to circular, composite, and non-circular surfaces.
The Retaining Wall Expert Estimating (RWE Software) is what the pros use to make sure they are accurately and efficiently bidding their projects. Program is used in combination with www.EngineerOnStaff.com, where there are over 7,000 preliminary retaining wall cross sections at your fingertips! This video shows just how FAST & SIMPLE the RWE Software is.
