Three-story steel framed building is situated over controlled fills and native soils at a former sand and gravel mine.
GTA performed design-phase exploration for the building. GTA’s exploration included two in-situ dilatometer soundings. The results of the DMT soundings allowed us to significantly increase the allowable bearing pressure that was previously assigned, based on Standard Penetration Test (SPT) data, resulting in reduced footing sizes, and construction cost savings.
GTA provided value-engineering recommendations for a single-family house to be constructed at the location of a former tennis court and several retaining walls which were to be reused to support the basement walls.
GTA’s exploration program included excavator-pushed DMT soundings, performed adjacent to the existing retaining wall concrete footings.
Spread footings were recommended, thus eliminating the need for a specialty foundation system, and saving a significant cost for the project.