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Utility Monitoring Point

Utility monitoring points (UMP) are used to monitor underground utilities for potential displacements caused by construction activities. Datasheet

UMP Applications

  • Monitor displacements caused by excavating, dewatering, tunneling, trenching, and other construction activities.
  • Serve as automated heave-settlement points to monitor ground loss or heave in foundation soils.

Operation

A UMP consists of a fiberglass rod installed to contact the utility below. The rod follows any vertical movement of the utility. Displacements are detected by monitoring the top of the rod.

Monitoring Options

AMTS System: A prism is fitted to the top of the riser rod, which is installed within a PVC sleeve to allow free movement. An AMTS monitors the elevation of the prism. One AMTS system can monitor multiple UMPs.

Displacement Sensor: A single-point rod extensometer is anchored close to the utility. Movement of the utility is detected by a displacement sensor in the extensometer head. A wireless logger transmits the readings to a gateway. This option is especially useful if consistent line-of-sight is not available.

Manual Verification: An optional manual-read feature is available with the AMTS version, allowing verification readings with a depth gauge.

 

ump-2021-turtle
UMP - displacement sensor option

Advantages

Low Profile: The UMP does not interfere with traffic or construction activities. It can be installed completely flush with roadways or under a low-profile, heavy-duty dome on construction sites.

Safe & Cost Effective: Automated monitoring eliminates the need and expense of survey crews and traffic control.

Timely Data: Measurements are relayed to a GeoCloud server that checks for alarm conditions and sends alerts to desktop PCs and smartphones.

UMP with prism

Prism fitted to top of riser

UMP well cover and prism

Well Cover with slot for prism