AMTS at Providence Tarzana

The 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 and…

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Prism at Tampa Airport

Project Tampa 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. Rendering courtesy of Tampa International Airport.   Monitoring Requirement Keller is installing foundations for three new structures at the airport, including the central utility plant shown in the…

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Monitoring Railroad Tracks

Project The 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 by large-bore piles.…

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Prado Flood Basin

Project The USACE enlarging the flood control basin and building a dike to enhance flood risk management at Prado Dam. The basin is designed to accomodate a 200-year event. Monitoring Requirement Engineers needed to monitor settlement, total pressure, and pore-water pressures. Implementation GEO installed a wireless, solar-powered logger, three settlement cells, an earth-pressure cell, and…

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Inclinometer training

Project The LAMP project at LAX in California is a multi-billion dollar program for modernizing access to and from the airport. One part of the project involved jacking a 42-inch gas line under existing structures at Aviation Boulevard. Monitoring Requirement GEO-Instruments was contracted to provide drilling, borehole logging, instrumentation supply, installation, commissioning, and training for…

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Monitoring ground improvement

Project To consolidate foundation soil for a large warehouse facility in California, Keller installed wick drains and followed up with deep dynamic compaction and surcharging. Monitoring Requirement Monitoring the progress of consolidation required easy access to continuous measurements of pore-pressure and settlement. Implementation Vibrating wire piezometers were installed across the site. GeoCloud wireless nodes placed at the…

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Monitoring vibration and noise at Seawall

Project Naples, a neighborhood of Long Beach, California, is built on three islands protected by seawalls. A project to refurbish the seawalls involved driving the steel sheet piles seen above. Monitoring Requirement Driving sheet piles generates noise and vibration. To protect adjacent properties from excessive vibrations and to protect people from excessive noise, the contractor…

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Solar Powered Dust Monitor

GEO deployed two dust monitors at this construction site in Miami, Florida. Why two? The contractor is responsible for controlling dust from the site, but there may be other sources of dust that are outside the contractor’s control. By deploying two monitors, one upwind and one downwind from site activities, it is possible to calculate…

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Monitoring rail and metro tracks

GEO’s AMTS is monitoring Caltrain track during adjacent construction. The dots of light are prisms installed on the track. Rail clip prisms are installed in pairs at 15-foot intervals along the track. This photo shows only the inside prisms. Pairs of road prisms at the road crossing. Monitoring prism pairs provides measurements of track geometry,…

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