Case Studies

Soil-Bentonite Slurry Wall Installation Erie Landfill Remediation - North Arlington, NJ

Project Summary

This project was a slurry wall containment around a building debris landfill. In several areas the alignment ran along the water's edge. The slurry wall was installed in a salt water environment with about one meter freeboard over the high tide level. Because the excavated material was primarily waste materials, all excavated material was taken away for disposal and the backfill was composed of 100% import material. The perm spec was 1 x 10-9 m/sec and quality was assured with numerous grab samples taken from the backfill as it was placed.

This project is one of the very few to require pugmill mixing of the SB backfill. In order to employ a pugmill, the SB backfill had to be mixed in a central location and trucked to the trench. Pugmill mixing requires mixing the backfill twice; once to make the backfill and once to pass through the pugmill. Although pugmill mixing was unusually expensive, it was successfully deployed on this project.

Geo-Solutions teamed with the General Contractor and provided design mix services, slurry plant and long stick excavating equipment. The soil profile was waste fill overlying river sediments and the wall was keyed in to a natural clay at its base.. The project was completed with no issues.

Slurry Wall Dimensions: : SB wall: 20,000 sm, 900mm wide, maximum depth of 20 m.

Geo-Solutions Can Help

To download, read, and learn more about the various slurry wall sample specs and technical papers we offer online here at Geo-Solutions.com, click on the links below or to your left:

• Slurry Wall Sample Specs– Geo-Solutions provides slurry wall sample specs which can be modified for real world use on your project. Download sample specification for Slurry Wall Construction.

• Slurry Wall Technical Papers – Browse our library of Slurry Wall Technical Papers.

Call Us Today