December 11, 2018

Best Practices for Zero Retaining Wall Failures - Monotube-Okabe Slope Above Limitations

When designing for a slope above a retaining wall, the Mononobe-Okabe (M-O) seismic methodology limits the steepness allowed above the wall. If during the design phase it is determined that the desired slope is not allowed, the site grading should be altered, or the wall height should be increased to reduce the steepness of the slope above. See section 12.4 of Best Practices for description of slope steepness.  (ref. BP, Chapter 11.3)
Allan Block is working to achieve our industry initiative of Zero Wall Failures. With our Best Practices Manual and experience in the industry we are trying to expand the knowledge base for the design of segmental retaining walls (SRW's) by communicating and educating the professionals in the industry.  To see the full Best Practices Manual, visit to download today and keep an eye out for more industry Best Practice recommendations here.

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