Features & Applications of Piezometer in Construction

In geotechnical and civil engineering different tools are required and utilised to ensure a high-quality construction. The piezometer is one of the devices that is helpful in measuring pore water pressure. Some of the most advanced piezometers come with a vibrating wire, making them more effective in the method of converting fluid pressure into a frequency signal on a sensitive diaphragm. Frequency signals can be used in demanding environments, making them ideal in applications involving civil engineering. The signals are capable of being transmitted in long distances without degrading. Moreover, they are resistant to electrical external noise and they can tolerate wet wiring conditions.


A vibrating wire gauge works based on the principle that when a tension wire is plucked, it vibrates at a resonant frequency. A magnetic coil surrounds the wire, and when plucked by a data logger interface, the result is the vibration’s resonant frequency. Changes in the distance between the diaphragm and anchor are related to differentials in pressure, and they can be converted to kPA reading. Piezometers are practical in construction for their longevity and reliable performance, as well as for their rugged design, which makes them suitable for use in the most demanding environments.

The piezometer can provide highly accurate readings regardless of the length of the cable. With this device workers can determine fluid pressure in pump and hydro-fracture tests, as well as measure the pore pressure in rocks and soils. Both pore pressure and pore water are factors in ground uplift, settlement, or leave. Pore pressure data is crucial when monitoring embankments, dams, footings, retaining walls, foundations, compacted fills, underground works, open excavations, slopes, and tunnels. All non-drive-in piezometers can be customised with threaded adaptors as needed. High-end vibrating wire piezometers can be connected with data loggers or a readout device.

Comments

  1. purwadi28 September 2017 at 02:23

    Piezometer is really efective and helpful in measuring pore water pressure... thanks bro for this good article

    http://testingindonesia.com/produk/piezometers

    ReplyDelete

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