SYMPOSIA PAPER Published: 01 January 1992

Deep Foundation Elements Installed by Slurry Wall Techniques


Deep foundation units, installed using slurry wall techniques, are generally referred to as Barrettes or Load Bearing Elements (LBEs). This paper reviews examples and applications of this foundation type, and describes two case studies in which these units were utilized in Boston.

Current design issues and construction installation details are presented. The design discussion focuses on the selection of foundation type and load transfer into the bearing stratum. Issues related to construction include excavation equipment and stabilization, bottom cleanup, installation of reinforcement, tremie concrete placement, and quality control during installation. for both case studies, the LBEs were installed for projects constructed by the “up/down” method, which is described in the paper. Although there are some unique advantages when used with this construction method, the selection of LBEs should be considered for conventional construction as well.

Author Information

Johnson, EG
Johnson, KE
Erikson, CM
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Developed by Committee: D18
Pages: 207–224
DOI: 10.1520/STP19735S
ISBN-EB: 978-0-8031-5191-8
ISBN-13: 978-0-8031-1427-2