National Driller has a nice interview with the 2015 Terzaghi Lecturer, Donald Bruce, President of Geosystems. Bruce, best known for his expertise in grouting, will deliver his Terzaghi Lecture at this week’s IFCEE conference in San Antonio. [Source: Read the interview at National Driller. Image: National Driller]
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Nicholson Completes Emergency Work on Indiana’s I-65
PITTSBURGH, 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]