projects
SOE in Seattle
Monitoring SOE in Seattle GEO-Instruments is monitoring the support of excavation system at 701 Dexter in Seattle. The deep excavation makes room for a 4-level underground parking garage that will be topped by a 10-story office building. At the start of the project, the 701 Dexter building was still standing. GEO used a drone to…
Read MoreCoastal Cliff Erosion
Projects ProjectsRecentSettlementExcavationsStructuresWalls & SlopesInfrastructureBridgesTunnelsRailVibrationDustConsolidationPiles Coastal Cliff Erosion Threatens Road Coastal erosion threatens the safety of a road leading to an industrial site. At this location, the cliff has advanced inland to within 20 feet of the road. A 600-foot horizontal shape array, piezometers, and vibration monitors were installed to provide continuous monitoring. The cliff has…
Read MoreWaterfront Tunnel Alexandria
Waterfront Tunnel – Alexandria Virginia The Herrenknecht TBM used by AlexRenew, Alexandria Virginia’s water treatment service. The TBM was named for Hazel Johnson, one of America’s leading pioneers for environmental justice. Hazel next to the launch shaft. After launching, Hazel proceeded to excavate the 2-mile long Waterfront Tunnel at an average depth of 100 feet.…
Read MoreWest Point CEAC
West Point CEAC West Point Military Academy is adding a Cyber & Engineering Academic Center as seen in this architect’s rendering. The start of construction involved blasting rock to make room for the new structure. GEO deployed 30 automated vibration monitors to monitor the effects of the blasting. Geophones were installed directly onto the structures…
Read MoreMSE Wall Repair
MSE Wall Repair Project OverviewKeller was called in to stabilize and repair a failed MSE wall. The wall supported a highway overpass. GEO-Instruments was contracted to monitor the wall during the repair work. InstrumentationGEO deployed 31 wireless tiltmeters and two AMTS systems with 60 prisms to monitor approximately 1400 feet of MSE wall. GeoCloud Automation…
Read MoreAlameda Dust
Alameda Dust Adapted from Aeroqual’s case study: Being a Good Neighbor Requires Real-Time Alerts and Defensible Air-Quality Data PDF Link Below Project Catellus is completing a multi-year transformation of a former US Navy facility into a 280 acre, water-oriented, mixed-use development in Alameda, California. Residents have moved into homes, the new school is in session, and…
Read MoreMultilevel Piezos
Projects ProjectsRecentSettlementExcavationsStructuresWalls & SlopesInfrastructureBridgesTunnelsRailVibrationDustConsolidationPiles Multi-level Piezos at SR12 Caltrans Bay Area is improving a complex highway interchange involving I-80, I-60, and SR12, replacing a bridge and building dedicated connectors and off ramps to reduce congestion. GEO installed multi-level piezometers to monitor the progress of consolidation before construction begins. Ground improvement is required before this SR12…
Read MoreConsolidation Completed
Consolidation Completed GEO installed a consolidation monitoring system at this site in California and relayed all measurements to a secure Quickview website. Keller used a combination of deep dynamic compaction and wick drains to densify and consolidate the soil at the site. The site is now ready for construction of a large warehouse facility. This…
Read MoreRVMs in Nevada
RVMs Monitor Sheet Pile Installation Four of the six RVMs positioned along the sidewalk adjacent to the work zone. GEO’s rugged vibration monitor (RVM) are deployed at this site in Nevada to monitor vibrations from sheet pile installation. Unlike most other vibration monitors, RVMs can be installed in public locations. The lockable, heavy-weight steel enclosure has…
Read MoreSeatac Utility Upgrade
Seatac Utility UpgradeProject A utility upgrade project at SeaTac’s north terminal required excavations adjacent and below the departure ramp foundation. An AMTS system was selected to monitor for any displacements induced by the excavations. Challenge For the first excavation, AMTS was positioned outside the utility room. For the second excavation, the AMTS was repositioned to…
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