Noble Engineering Partnership Lessons
Elevation Plot Maintenance and Usage Tips:
Maintenance: Ensure your elevation plot is well-maintained by storing it indoors during freezing conditions. Avoid kinking or stepping on the lines to keep them in good working condition.
Settings: Adjust the elevation plot settings to display measurements in decimal format for more precise readings.
Preparation: Unspool all the line you will need before beginning the evaluation to avoid interruptions.
Understanding Data: The data from the elevation plot is crucial for the evaluation. It's vital to comprehend what the readings imply about the foundation's condition:
A 1.5-inch difference across a foundation necessitates an engineering evaluation.
Differences greater than 2 inches between two points usually indicate the need for repair work. Such discrepancies often correlate with visible issues like cracked walls or stuck doors and windows. Confirm that the readings align with your observations of the foundation's condition.
Standards and Calibration: The standards for evaluating foundation issues are distance-based:
You might observe a 2-inch drop between points if they are spaced significantly apart and show signs of foundation stress.
A 2-inch drop should not occur just a few feet from the last measurement point; such a reading might suggest a calibration error.
Troubleshooting: If the readings on the plotter seem off, it's good practice to return to your base location and recalibrate if the plotter isn’t reading zero. This ensures accuracy in your evaluations