projects
MSE 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…
Read MoreCrossbay Bridge Upgrade
Crossbay Bridge Upgrade ProjectScheduled upgrades for this six-lane highway bridge include replacement of fender systems and improvement of scour protection. The bridge must remain open during construction. Monitoring RequirementsThe project will require vibration monitoring and stability monitoring. The photo above shows heavy stone mattresses being placed at the base of the piers for scour protection.…
Read MoreMed Center Expansion
Med Center Expansion Project:Providence Tarzana Medical Center is undergoing a 540 million dollar upgrade and enhancement that involves removal of some older structures and construction of a new patient wing, a new parking structure, and a new main building. Monitoring Requirements GEO-Instruments was contracted to monitor the support of excavation for the new patient wing…
Read MoreTampa Airport
Tampa Airport Expansion ProjectTampa International Airport’s $2 billion expansion plan will allow the airport to serve a projected 34 million passengers per year, up from the current 21 million. Photo was taken from the tower. Monitoring RequirementKeller is installing foundations for three new structures at the airport. Existing structures had to be monitored for…
Read MoreCalifornia High Speed Rail
California High Speed Rail ProjectThe California High Speed Rail system will connect San Francisco to Los Angeles with trains traveling up to 220 mph on grade-separated track. (Rendering courtesy of California High Speed Rail Authority). GEO-Instruments is at work on a section of the project between Fresno and Bakersfield. The elevated tracks will be supported…
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