Neshoba Spillway Remediation using TerraThane Polyurethane Grout
Featured

Polyurethane Grout Curtains Solve Seepage Problems

Two recent projects using TerraThane™ geotechnical polyurethane grout were successful in solving seepage problems. TerraThane™ is a two-part geotechnical polymer that when mixed at the injection location, expands to many times its initial volume and […]

Nicholson Construction stabilizes pier on I-65 using micropiles and low-mobility grouting
Press Releases

Nicholson Completes Emergency Work on Indiana’s I-65

Nicholson Construction stabilizes pier on I-65 using micropiles and low-mobility groutingPITTSBURGH, PA – Nicholson Construction recently completed emergency repair work to an unstable pier supporting a bridge on INDOT’s Interstate 65. These repairs enabled a 37-mile section of the highway’s northbound lanes to be reopened after a four-week closure.

The highway was in the process of being rehabilitated and widened when the pier was damaged by steel piles driven into the water tight ground below it. The pier began to settle and eventually rotated ten inches.

Nicholson developed a design-build solution that used micropiles to transfer the loads to more stable soils and low-mobility grouting to fill voids and densify the upper subsurface layer.

[Editor] Read on to hear more about Nicholson’s fix of this unstable bridge pier. [/Editor]

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BIM used in the Victoria Station Upgrade
Miscellaneous

Winners of the GE Awards revealed

The winners of the prestigious Ground Engineering Awards were announced recently. The Editor’s Award was presented to a Joint Venture of Keller (parent company of GeoPrac sponsor Hayward Baker), Bam Nuttall and Taylor Woodrow as […]

Tubes a Manchette for post-grouting a drilled shaft foundation
Miscellaneous

FHWA Research Project: Post-Grouted Drilled Shafts

The FHWA is partnering with a virtual who’s-who of geotechnical engineers and contractors specializing in drilled shafts and grouting to perform a research project on post-grouting (aka base-grouting or tip-grouting) of drilled shafts. More details […]