Vibrating Wire Piezometer Articles & Analysis
5 articles found
Instrumentation of Cone Penetration Tests (CPT's), standpipe and vibrating wire piezometers were installed at the project. This paper focuses on the role of the PVD's as drainage elements for the quick bursts in pore pressure and the results are presented herewith. ...
The shafts for an outfall tunnel in New York required shoring for excavation support and groundwater control. Since there was limited room at site, ground freezing was selected to provide the shoring, instead of a diaphragm wall. Ground temperature monitoring was a critical component, to allow for modeling of the freeze bulbs and to verify when it was safe to begin excavation of the shaft. ...
Therefore the dam’s construction engineers put forth a proposal for a large number of geotechnical sensors to be installed and used during construction. These sensors included vibrating wire piezometers, joint meters, fill extensometers and strain gauges. ...
The single hole, nested type piezometers were introduced to limit costs and disturbance to the aquifer, see Figure 3. However, uncertain seal placement resulting in possible interconnection between monitoring zones resulted in the EPA (1986) stating that 'Information obtained on multiple piezometer placement in a single borehole may generate erroneous data'. ...
It is of modular design, and as such, is installed in much the same way as a typical PVC standpipe piezometer. In addition, the Waterloo System has the option of including dedicated sampling pumps and pressure transducers, and multiple packers to seal unmonitored zones, thus making it particularly useful for this project. ...