October 2012 - November 2012
As part of major renovations to a Hershey’s chocolate factory built in the 1920s, the factory required a seismic retrofit to meet current building code requirements for extreme conditions including earthquakes.
Wagman’s Geotechnical Construction group designed and installed micropiles socketed into rock with a “low headroom” drill rig in the factory’s basement. These micropiles anchor the cross bracing for the factory’s retrofit.
Key Challenges & Project Details
- The area consisted of karst geology.
- Building records were not available.
- To determine footing depth, several footings were core drilled up to eight feet deep.
- Micropile connection was counter sunk into existing footings.