When the integrity of pile shafts, are checked non-destructivelythe low strain testing method or Sonic Echo is generally used. This non-destructive test is known as colloquially as the Pile Integrity Test (PIT). In pile integrity testing, the pile length, its depth and also pile shaft defects can be measured accurately. Also cross-sectional changes and be detected usingthe pile integrity test.
There are basically two types of pile integrity tests that are being performed by the construction experts nowadays and they are a low-strain pile integrity test and dynamic pile integrity testing.
The low strain pile integrity test involves a geophone and accelerometer being mounted to the top of the pile. An impact from an impulse hammer is used to both trigger the sensors and create a compression wave that travels down the pile. The wave reflects from changes in impedance such as the tip of the pile or defects such as sand lenses, bulbs or necks in the pile. The return wave is then collected by the sensors.
In the Sonic Echo method the data is analysed in the time domain, whereby the time between the impact and the return wave is used along with the wave speed to determine the depth of the pile or defect. In the Impulse Response method the data is analysed using the frequency domain. The various harmonics of the pile are measured. The period of each frequency is calculated and then the depth calculated again using an assumed wave speed.
Pile testing is a simple non-destructive procedure that can be performed within a shorter span of time. The pile testing is also very effortless as it involves less manpower too. You can shop for the best quality pile testing equipment online in Australia at the online non-destructive equipment stores.
By visiting the website of these non-destructive concrete measuring equipment dealers, you can shop forpile testing devices and other types of high-end non-destructive concrete quality and strength testing equipment and devices at market direct prices. The online non-destructive concrete devices and equipment stores in Australia offer doorstep delivery of products with safer shipping too.
There are basically two types of pile integrity tests that are being performed by the construction experts nowadays and they are a low-strain pile integrity test and dynamic pile integrity testing.
- Low Strain Pile Integrity Testing or Sonic Echo/ Impulse Response– This type of testing is done withcommercial and industrial projects across the world. The pile strength, pile shaft defects and their length can be measured with this test. Low strain testing is fast, accurate, and it is also a cost-effective process. Usually in low strain pile integrity testing, the echo testing method is used.
- Dynamic Pile Integrity Testing–This is an expensive and a lengthy testing procedure that is conducted in bigger construction areas and also in developmental projects. Total skin friction on a pile along with friction variation is measured using this test. In projects like bridges, railways, airports, terminals and more the dynamic testing procedure are followed. By applying both force and velocity, the dynamic pile testing is performed.
The low strain pile integrity test involves a geophone and accelerometer being mounted to the top of the pile. An impact from an impulse hammer is used to both trigger the sensors and create a compression wave that travels down the pile. The wave reflects from changes in impedance such as the tip of the pile or defects such as sand lenses, bulbs or necks in the pile. The return wave is then collected by the sensors.
In the Sonic Echo method the data is analysed in the time domain, whereby the time between the impact and the return wave is used along with the wave speed to determine the depth of the pile or defect. In the Impulse Response method the data is analysed using the frequency domain. The various harmonics of the pile are measured. The period of each frequency is calculated and then the depth calculated again using an assumed wave speed.
Pile testing is a simple non-destructive procedure that can be performed within a shorter span of time. The pile testing is also very effortless as it involves less manpower too. You can shop for the best quality pile testing equipment online in Australia at the online non-destructive equipment stores.
By visiting the website of these non-destructive concrete measuring equipment dealers, you can shop forpile testing devices and other types of high-end non-destructive concrete quality and strength testing equipment and devices at market direct prices. The online non-destructive concrete devices and equipment stores in Australia offer doorstep delivery of products with safer shipping too.
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