SYMPOSIA PAPER Published: 01 January 1995
STP16006S

Design and Performance Verification of a Soil-Bentonite Slurry Wall for the Hydraulic Isolation of Contaminated Sites

Source

The polluted ground of contaminated sites is often encapsulated by diaphragm walls, with concrete or concrete-stabilized earth being common construction materials in Europe. At the Institute of Geotechnical Engineering at the Swiss Federal Institute of Technology Zurich, new material mixtures that contain a high percentage of clay minerals have been developed over the past few years. Two experimental diaphragm walls, one in Switzerland andone in Germany, were constructed using such materials. A diaphragm wall 55 m deep using this mixture is currently being placed to encapsulate a contaminated landfill site in Germany. In this paper, an evaluation of the new mixture and results from both the experimental and full-scale walls, as well as complementary laboratory investigations, are presented and examined.

Author Information

Hollenweger, R
Institute of Geotechnical Engineering (IGT), Swiss Federal Institute of Technology Zurich (ETHZ), Zurich, Switzerland
Martinenghi, L
Institute of Geotechnical Engineering (IGT), Swiss Federal Institute of Technology Zurich (ETHZ), Zurich, Switzerland
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Details
Developed by Committee: D18
Pages: 271–286
DOI: 10.1520/STP16006S
ISBN-EB: 978-0-8031-5316-5
ISBN-13: 978-0-8031-2028-0