I came across this video that introduces DAT Instruments, an Italian Company that builds dataloggers for geotechnical construction such as grouting, jet grouting, soil mixing, diaphragm walls and more.
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 […]
Tunnel Boring Magazine has this synopsis of the project: The East Side Access project in New York City involves some of the most complex civil construction in recent years. The project involves constructing new tunnels […]
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]
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Instrumentation systems for geotechnical and structural monitoring often entail monitoring large numbers of sensors of different types with dataloggers often being installed in remote, inaccessible and hostile locations.