News and Events

Welcome to our newsroom! Here you will find the latest information about our company, projects and people. Browse articles published by our engineers and scientists in national publications and conference proceedings, view our press releases and read through news coverage of Terracon.

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All News and Events

Effective Performance Monitoring Saves Money and Reduces Risk

Performance monitoring is an important part of every risk management strategy for constructed facilities. Effective performance monitoring programs can lower geotechnical risk to a project. Emerging technology, such as automated, Web-based display instrumentation monitoring systems, enables owners, construction managers, and engineers to review real-time online construction information from remote locations 24 hours a day.

An effective instrumentation system can reduce maintenance and labor overhead by using remote controlled and automated monitoring systems. This equals less time to manually collect, download, calculate, and plot new data from the fi eld. In addition, an automated system is an essential tool for making timely decisions regarding construction activities to mitigate potential damage to new structures and/or construction safety.

Automated, 24-hour Real-time, Web-based Display & Long-range Wireless Technology
H.C. Nutting, a Terracon company, prepared a customized data acquisition system (DAQ) for both vibrating wire and analog type modules and installed them at instrumentation stations requested. However, even with a state-of-the-art instrumentation module, an up-to-date wireless communication system, data collecting and compiling software, and Web-based publishing technology are still considered essential for a successful instrumentation project, when real-time monitoring and/or safety concerns warrant their use. Newer on-site communication technology is inevitable for projects involving multiple monitoring stations.

Short-range Wireless Routers (Zigbee) Designed to Eliminate Cables Between Readout Stations or Sensors
Instrumented locations in remote areas are powered by solar panels and signaled by short-range wireless routers (Zigbees) and long-range GPRS, which signifi cantly reduces the risk of cables being damaged from repetitive use and/or construction equipment, or lack of on-site electrical power during construction operation.

New Generation “In-Place Inclinometer with Data Acquisition System (IPID)”
Traditional in-place inclinometers consist of multiple-cable, biaxial instruments for monitoring the deflection of inclinometer casing. The traditional system has limitations on the number of sensors at one location due to the size of the inclinometer casing and the increasing quantity of cables with depth.

IPID should be used with projects where inclinometer monitoring may experience much greater magnitudes of lateral movement or for inclinometers that require many points (depths) of measurement. This will reduce the installation time and cost, as well as the risk of cable damage.

The advantages of using the new generation of in-place inclinometers with data acquisition system (IPID) include:

  • Inclinometer sensors consisting of a data acquisition system
  • Only one cable for all sensors (can link up to 32 sensors)
  • Dual axis silicon 3-D MEMS sensors RS-485 Data Acquisition (an easy method for long distance transmission and remote monitoring)
  • Much smaller enclosure (control box) size
  • Less time spent on installation labor and system maintenance
  • Compatible with other industrial RS-485 DA&C module Safety (remote monitoring)