Bridge pile foundation inspection method

1、Low Stress Variable Measurement Method

This method is suitable for detecting the integrity of concrete piles, determining the degree and location of pile defects, and providing a basis for further testing of other methods

2、Sound Transmission Method

In order to detect the integrity of the concrete piles, to determine the degree of defects in the piles, and to determine the location of the piles, ultrasonic transmission method is required. method.

3, high strain method

Impact the top of pile with heavy hammer, measure the velocity and force time curve at the top of pile, analyze the fluctuation theory, and determine the vertical compressive capacity and integrity of single pile testing method.

4. Reflected wave method

Through the information received from the elastic wave (longitudinal wave) reflected back from the top of the pile, find out the interface where the wave impedance of the pile body changes, and analyze the reason of the change, so as to evaluate the structural integrity of the pile.

5, core drilling method

The main purpose is to detect the integrity of the pile body, concrete strength, pile length, slag thickness at the bottom of the pile and determine the geotechnical properties of the holding layer.

6, static load test method

This method is suitable for determining the vertical ultimate bearing capacity of various foundation piles or sampling test and evaluation of bearing capacity of engineering piles.