Dulles Airport - Geo Instruments 122908

GEO-Instruments 800-477-2506 www.geo-instruments.com

Selected Project Overview Optimum Instruments February 2006

Company History Geo-Instruments was founded in 2003 to provide sales and service to Geotechnical and Structural monitoring projects, focusing on remote data collection. We make custom instruments, and represent Soil Instruments, UK in North America. We work with Syscom, Instantel, Optimum Instruments, Campbell Scientific and Lieca Geosystems to provide a full range of solutions to measure tilt, vibration, pressure, strain, displacement and temperature – in the earth, or on structures 2

What we do:  Geo-Instruments provide solutions to:  Owners, Contractors, and Engineers to answer questions about:  Effects of new construction on existing abutting structures  Verification of design assumptions, during retaining structure construction - in order to ensure safety, and reduce overbuilding costs. (Observational method)  Monitoring existing natural geologic conditions (landslips) in order to provide design and early warning

Project Cases • Memorial Sloan Kettering Cancer Center, Manhattan, NY, April, 2003. • Pier 79 Ferry Terminal, (Monitoring Lincoln Tunnel) NY, NY May 2003 • US Supreme Court, Washington, DC August, 2003. • Marmet Lock and Dam Rehabilitation, Marmet, WV 2003-current • Dulles International Airport- Taxiway Tunnel Monitoring with Wireless Extensometers Feb, 2005- current

Memorial Sloan Kettering Cancer Center Research Laboratory • Remote, Optical Displacement Monitoring of abutting properties • Urban environment is idea for remote monitoring with: – Robotic total station reading 65 prisms targets, in “real-time” with graphical site layout – Monitoring for 100+ foot deep excavation in Rock on the Upper East Side of Manhattan – Provides movement data not otherwise obtainable due to lack of access to site

MSKCC View from Total Station

Robotic Total Station Mounting • Rooftop mount overlooks subject site, and other structures to be monitored

Prism Installation, Looking At Total Station (On Lower Roof)

Pier 79 Ferry Terminal • Monitoring Pile Driving affects on Lincoln Tunnel in NYC. • 30 VW Piezometers • 12 VW Crackmeters • 6 Remote wireless IP SYSCOM Seismographs • Real time data processed in CM site trailer, and published on project web Site • Real time email alerts

Pier 79 Ferry Terminal • Challenges: – Active Tunnel, needed remote real time monitoring – Limited Access – off revenue hours 1:00am to 4:00am

• Solutions: – Remote access to three standard CR10X dataloggers for all VW sensors – Developed a wireless IP interface to SYSCOM vibration Monitors to allow real-time unattended monitoring, via internet

Pier 79 Ferry Terminal aerial view

SYSCOM Vibration Monitoring System Setup

Plan View, web site

Section View Real Time

US Supreme Court • Monitoring historic marble structure during adjacent excavation for underground expansion. • 24 IPI sensors • 1 VW Crackmeters • 7 Tiltmeters • Real time data processed in CM site trailer with, and published on project web Site, via IP connection

Tiltmeter Installation

Real Time Software Display

IPI Real Time and Profile View

Marmet Lock & Dam Rehab USCOE • Monitoring existing lock structure during construction of new, adjacent lock. • 180 Inplace Inclinometers (IPI sensors) • 40 VW Piezometers • 24 Tiltmeters • 40+Traversing Probe Inclinometers • Manual measurements with digital micrometer • 30, solar powered Geomation MCU’s with radio link • Real time data processed in CM site trailer with, and published on project web site • Real time email alerts

Lock Wall & Cofferdam

Lock Wall & Cofferdam

Lock Excavation

Typical Datalogger Installation

Dulles Airport – Wireless MPBX’s

Dulles Improvements

Dulles Overview

New Tunnel Construction Monitoring • Challenges: – Active airport taxiways, – 24/7 tunnel operation over large area, required remote real time monitoring – Limited Access to instruments (active taxiway)

• Solutions: – Automated, Wireless MPBX System for easy field installation , and unattended data collection. This the first of it’s kind “state of the art” system

What is an MPBX? – Multiple Position Borehole eXtensometer – Installed in a borehole, in rock or soil. – Consists of tensioned or un-tensioned fiber glass, or stainless steel rods, anchored at specific depths in borehole – Anchor movements are measured at the top, either manually, or electronically. – Used with Tunneling, Mining, Landslides, retaining structures….

Why use an MPBX? – Safety of Airport Operations – early warning of tunneling induced, unexpected ground loss under airplane taxiways. – Allows unobstructed access to Airport operations on Taxiway. – Allows real time access to current data. – Battery powered for months of operation minimizing disturbance to day to day airport operations

Dulles Airport Wireless MPBX’s details • Monitoring existing active airport taxiways during people mover NATM and TBM tunnels. • 2 Contracts 3E and 3W total of 69 wireless MPBX’s • Self contained battery pack – provides up to 6 month life • Uses DD400 with internal xtend radio transceiver – provides data excitation, logging, and data transmission. • Use system repeaters and base stations/IP tunnels to send data to off site servers. • Allows unobtrusive access to settlement/heave data without closing active taxiways airport • MPBX System allows easy installation and all access from the top of hole

3E MPBX Layout

Taxiway Cross Section Installation

Dulles 3W APM Network Layout

MPBX Instrument Cross Section

Plan View of MPBX reference head

SIGNAL CONDITIONING/LOGGER

MPBX Reference head Assembly

MPBX Assembly – Power Pack

Leak Testing MPBX

Antenna/Instrument Cover Composite

Installation in Borehole – Hole Prep (flushing)

Installation in Borehole – Insertion in Borehole

Installation in Borehole – Insertion in Borehole

Installation in Borehole – Insertion in Borehole

Installation in Borehole – Insertion in Borehole

Installation in Borehole – Final Grouting

Installation in Borehole – Setting

Programming on Runway • Set up and troubleshooting with Wireless IP EVDO connection

• Verification of system comms at borehole • Easy set up in one step • DDServer allows remote programming, if needed

Installation in Borehole – Antenna Fixing

Typical Web Based Section View

Typical Trend Graph – Battery Voltage

Thank You!