Free Event September 30, 2020
Foundation Remediation using Micropiles and Low Mobility Grouting (LMG)
John R. Wolosick, PE, D. GE, F. ASCE
September 30, 2020
This is a FREE Event!
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This presentation discusses a case study of micropile underpinning and grouting works for foundation improvements carried out to remediate settlement distress of a new building located on the west coast of the Caribbean island of Barbados. The foundation remediation ultimately included the construction of a 280-foot-long sub-surface ‘sea-wall’, the installation of 174 micropiles (providing direct and indirect support to the building). Low mobility grouting of voids and interconnected fissures/fractures in the weak, vuggy, uncemented coralline limestone strata underlying the building foundations was also performed.
An investigation of the cause(s) of the settlement, a flexible remediation design, and close monitoring of the drilling and grouting operations during construction were essential to the success of the project. The repair was completed within the very tight schedule required by the Owner due to imminent move-in of new owners at this high-end condominium building.
John R. Wolosick is Senior Advisor for Keller North America Inc., Atlanta, Georgia. He holds B.S. and M.S. degrees in Civil Engineering from the University of Illinois at Urbana-Champaign. He has 40 years of experience in Geotechnical Engineering and contracting and is the author of more than 35 technical papers. He is the Past-President of the Deep Foundations Institute (DFI – 2014-2016). Mr. Wolosick was named the Georgia Society of Professional Engineers ‘Engineer of the Year – Industry’ in 2017.
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