Technical Service Center, Geotechnical Services
Instrumentation and Inspections Group
Instrument Information
| Information available: |
Explanation: |
| Image |
Photo or Illustration of Typical Instrument and/or installation |
| Procedure |
Installation, calibration, reading procedures, and maintenance. |
| Water Pressure (Piezometers) |
| Piezometer Type |
Measures |
Image |
Procedure |
| Hydraulic, Master Gauge |
Water Pressure |
JPG |
PDF |
Yes |
| Hydrostatic Pressure Indicators |
Water Pressure |
JPG |
PDF |
Yes |
| Pneumatic |
Water Pressure |
JPG |
PDF |
Yes |
| Stand Pipe |
Water Depth/Pressure |
JPG |
PDF |
Yes |
| Uplift Pressures |
Water Pressure |
JPG |
PDF |
Yes |
| Vibrating-Wire |
Water Pressure |
JPG |
PDF |
Provided on Request |
| Embankment & Structural Movements |
| Meaurement Device |
Type of Movement |
Image |
Procedure |
| Base Plates |
Vertical Embankment |
JPG |
PDF |
Yes |
| Borehole Extensometers |
Horizontal & Vertical Embankment |
JPG |
PDF |
|
| Closure Points, Crack Meters |
Horizontal & Vertical Structure |
JPG |
PDF |
|
| Convergence Meters |
Horizontal & Vertical Structure |
JPG |
PDF |
|
| Collimation Targets |
Horizontal & Vertical Structure |
JPG |
PDF |
Yes |
| Concrete Deformation Points |
Horizontal & Vertical Structure |
JPG |
PDF |
|
| Concrete Stress Cell |
Horizontal & Vertical Structural |
JPG |
PDF |
Yes |
| Foundation Deformation |
Vertical Foundation |
|
|
Yes |
| Inclinometer |
Horizontal Embankment Deflection |
JPG |
PDF |
Yes |
| In-Place Inclinometer |
Horizontal Embankment Deflection |
JPG |
PDF |
|
| Inclinometer Settlement |
Vertical Embankment/Foundation |
JPG |
PDF |
Yes |
| Internal Vertical Movements |
Vertical Embankment/Foundation |
JPG |
PDF |
Yes |
| Joint Meters |
Horizontal & Vertical Structure |
JPG |
PDF |
|
| Landslide Points |
Horizontal & Vertical Surface |
JPG |
PDF |
|
| Load Cells, Flat Jack |
Vertical Embankment |
JPG |
PDF |
Yes |
| Measurement Points |
Horizontal & Vertical Surface |
JPG |
PDF |
|
| Plumblines |
Horizontal Structure |
JPG |
PDF |
Yes |
| Shear Strip Indicators |
Horizontal & Vertical Structure |
JPG |
PDF |
|
| Surface Strain Gauges |
Horizontal & Vertical Structure |
JPG |
PDF |
|
| Stress Cells (Carlson Meter) |
Vertical Embankment |
JPG |
PDF |
|
| Structural Deformation Points |
Horizontal & Vertical Structure |
JPG |
PDF |
|
| Tape Extensometers |
Horizontal & Vertical Structure |
JPG |
PDF |
Yes |
| Tiltmeters |
Horizontal Structure |
JPG |
PDF |
|
| Total Pressure Cells |
Horizontal & Vertical Structure/Embankment |
JPG |
PDF |
Yes |
| Whittemore Gauge |
Horizontal & Vertical Structure |
JPG |
PDF |
|
| Drains & Flow (Seepage) |
| Seepage Device |
Measures |
Image |
Procedure |
| Drain Flows |
Seepage Measurements |
|
|
|
| Horizontal Drains |
Seepage Measurements |
|
|
|
| Seepage |
Seepage Measurements |
JPG |
PDF |
|
| Turbidity Meter |
Seepage Flow |
|
|
|
| Other |
| Other Device |
Measures |
Image |
Procedure |
| Thermisters |
Temperature |
JPG |
PDF |
|
| Water Quality |
Water Quality |
JPG |
PDF |
|
Last Updated: 2010/10/26
