In response to changes to the building code (IBC 2012 vs. IBC 2008 and ASCE 7-10 vs. ASCE 7-05), recent research regarding the effectiveness of “discrete reinforcement based” ground improvement designs and widely diverging ground improvement designs and design methods, the Seattle Chapter of the Geo-Institute is forming a committee to assess local standards of practice regarding design and construction of discrete ground improvement elements (e.g. compacted aggregate piers, controlled modulus columns, rigid elements, etc.) with the goal of deciding if some form of a ground improvement guidance document is necessary. The City of Seattle’s DPD has indicated that a guidance document of some form would be helpful in their review of ground improvement design submittals.
Ideally the proposed committee will consist of consulting geotechnical engineers, ground improvement design engineers, ground improvement contractors, and public officials. If you are interested in participating in this committee, or would like to be kept appraised of committee developments please contact any member of the Board. This invitation to participate in the planned committee will remain open until the committee is appropriately staffed.