Basic principles of low strain pile integrity test
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The reflected wave method, also known as the stress wave method, is to hit the pile top with a shock device such as a hand hammer or a force bar to generate a longitudinal stress wave signal to propagate along the pile body, and the sensor (velocity or acceleration) picks up the pile body defects and different interfaces. The reflected signal is used to determine the quality of the pile through a series of analysis and processing. Since this method is affected by various factors such as the external environment and personnel quality, the collected signals are often dynamic signals containing multiple frequency components, so corresponding measures and ways should be taken for each step of pile foundation detection to obtain the pile body.The real signal of the response. The low-strain reflected wave method pile inspection can be divided into two stages: on-site data collection stage and indoor data analysis and processing stage.
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Sinorock
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