Piezometer( DWLR)

Piezometers are the geotechnical sensors that are used to measure pore water pressure (piezometric level) in the ground. It is designed to measure pore water pressure in the soil, earth/rock fills, foundations, and concrete structures.

Considered one of the most important geotechnical monitoring instruments, it’s interesting to study as well. Let’s discuss more about piezometers, their types, working principles, applications, and functions in detail.

Piezometers are pressure transducers that are installed beneath the ground to measure the sub-surface piezometric level within groundwater level, soil, or rock. Now that you are well-versed with the piezometer definition, let’s move forward to understanding its usage in the geotechnical domain. 

Proper evaluation of pore pressure helps in monitoring the behaviours after construction and indicates potentially dangerous conditions that may adversely affect the stability of the structure, its foundation, and its appurtenant. 

It also provides basic data for design improvement that will promote safer and more economical design and construction. The Casagrande piezometer is considered the simplest form of piezometer. It consists of a Casagrande tip connected to the lengths of the extension pipe. The water level inside the pipe is measured using the diameter.

However, the vibrating wire piezometer is most commonly used because of accurate results and higher reliability.

 

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