Proceedings of the Deep Mixing 2015 Conference, (DFI)
Critique of Specifications for Deep Mixing
Peter R. Cali, Sea Level Engineering, LLC, United States; George Filz, Ph.D., P.E., Virginia Tech, United States
Unnecessarily restrictive specifications could be limiting the cost effectiveness of deep mixing (DM) applications and therefore limiting use of DM on projects where there are other options. Excessively restrictive standards demanded for strength and permeability certainly increase contractorsí bid prices, and costing the owners and, in the case of Government projects, the taxpayers more than necessary. Yet, lax or ineffective specifications often exist for some vital components of the quality assurance and quality control. In this paper, specifications for key elements of DM design and construction are examined. Recommendations are made to improve and streamline DM specifications to better serve the common objective of constructing a safe and cost effective ground improvement project.
|article #2126; publication #1013 (DM-2015)|