Drilled Piers in the Piedmont—Minimizing Contractor-Engineer-Owner Conflicts

by Stanley A. Schwartz, Soil & Material Engineers Inc, Atlanta, GA, USA,



Document Type: Proceeding Paper

Part of: Foundations and Excavations in Decomposed Rock of the Piedmont Province

Abstract:

Drilled piers are used extensively in the Piedmont Physiographic Region, deriving support primarily from end-bearing on hard rock. Cost extras and contractor-engineer-owner conflicts are common because of poor design, specifications and contracts; variable subsurface conditions; uncooperative and/or inexperienced contractor personnel; and unpredictable and/or unreasonable construction monitoring demands. This paper is intended to describe these problems and present recommendations for mitigating them.



Subject Headings: Soil surveys | Foundation construction | Soil mechanics | Contractors and subcontractors | Construction methods | Rocks | Subsurface investigation | Engineering mechanics

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