Piezometer
1. Piezometer is an instrument for measuring the pressure of a liquid or gas, or something related to pressure (such as the compressibility of liquid). Piezometers are often placed in boreholes to monitor the pressure or depth of groundwater.
2. Piezometer is an instrument for measuring pressure, especially high pressure.
The use of piezometer has following purposes:
1. To study the effect of water in pores of soil or rock is to reduce load bearing capacity of soil or rock. Effect is more pronounced with higher pore water pressure leading eventually in some cases to total failure of load bearing capacity of the soil.
2. Piezometer is extensively used in Groundwater Monitoring to determine the level and flow pattern of groundwater.
3. To determine the flow pattern of water in earth/rock fill, concrete dams, and their foundations.
4. To delineate the phreatic line.
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