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Instrumentation and Special Testing

GeoStructures designed and installed numerous geotechnical and structural instrumentations for buildings, railroad bridges, subway tunnels, railroad tracks, and other structures. Our instrumentation plans comprise manual as well as automated systems with real-time measurements and reporting. Our various services incorporate inclinometers, telltales, piezometers, surface markers, settlement sensors, seismographs, and automated motorized total stations (AMTS).

GeoStructures has implemented its Surcharging Program and Instrumentation to numerous projects at the Philadelphia Navy Yard where settlement of the thick, soft, Delaware River silt deposits poses particular geotechnical concerns. As part of this program, GeoStructures first installs electronic settlement and pore water pressure sensors across the site. Surcharge fill is then preloaded over the site and left to settle for up to 6 months or more. Once the instrumentation confirms that the primary and secondary consolidation settlements have been achieved, surcharge is cut back and building construction can begin.

  For inquiries related to Instrumentation and Special Testing, please contact Jianchao Li (

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