Challenges and solutions to model-scale testing for composite deep foundations and existing foundation enhancement

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Title: Challenges and solutions to model-scale testing for composite deep foundations and existing foundation enhancement
Authors: Laefer, Debra F.
Manke, Jonathan P.
Tucker, Jason E.
Batten, Yuri
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Date: 2007
Abstract: Laboratory testing for foundation design offers advantages over field-testing, especially, where existing installations preclude easy accessibility. Advantages include a homogeneous soil, ability to place instrumentation throughout the soil mass, and capacity to bring the system to failure, as well as control over the failure mechanism. Repeatability is also achievable. Laboratory work, however, has its own challenges. For model-scale work, a main impediment is scaling: strength, dimensions, and boundary conditions hinder accurate modeling of the soil and brings a difficulty in representing scaled foundations. This paper describes the construction-oriented solutions pioneered for meeting the geometric requirements of ⅛th scaled laboratory testing of composite deep foundations for existing foundation enhancement, including drilled shafts, helical piers, and grouting. Results of the testing program are included as verification of the usefulness of the techniques.
Funding Details: Other funder
Type of material: Conference Publication
Publisher: American Society of Civil Engineering (ASCE)
Copyright (published version): 2007 ASCE
Keywords: FoundationsReusePilesGround improvementGround reinforcementHelical piersGroutingDrilled shaftsLaboratory testing
Subject LCSH: Foundations--Design and construction
Testing--Simulation methods
DOI: 10.1061/40902(221)18
Language: en
Status of Item: Peer reviewed
Is part of: W. Camp, R. Castelli, D. F. Laefer, S. Paikowsky (eds.). Contemporary Issues in Deep Foundations (GSP 158). Part of Geo-Denver 2007: New Peaks in Geotechnics Proceedings of Sessions of Geo-Denver 2007 February 18–21, 2007, Denver, Colorado, USA
Conference Details: Geo-Denver 2007: New Peaks in Geotechnics, February 18–21, 2007, Denver, Colorado
Appears in Collections:Urban Institute Ireland Research Collection
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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