Brewers Block
Brewers Block
Project Details:
Owner: RDC
General Contractor: Elford Construction Co.
Dates of Work: August 2021 to September 2021
Engineer: Construction Engineering Consultants, Inc.
Approximate Key Quantities: Stone Columns 498 EA.
Project Overview:
Ground Conditions:
Solution:
Several ground improvement options were considered, including Controlled Modulus Column (CMC)® rigid inclusions and dynamic compaction. The latter was discounted due to the high energy waves associated with the technique – which is not conducive to inner-city work -- and the near-surface elevation of the ground water table. CMCs were more expensive and not compulsory given the light building loads. This led to the selection of aggregate piers -- also known as stone columns – which were technically and economically optimal for this project.
A total of 498 24-in stone columns were installed to depths of 12 ft to 18 ft. Menard designed a layout of stone columns at each footing to support column loads. Stone columns were also installed along the strip footers that supported the walls. The design provided for 1 in of post-construction settlement with a ½ in of differential settlement, meeting the performance criteria of the new facilities.
Menard USA installed 498 stone columns to support three new buildings converging four historic Pittsburgh neighborhoods.
