Application Research of Pipe Pile Detection Technology based on Impact Elastic Wave

Abstract

The practical application of the low strain method in the detection of prestressed pipe piles is not ideal. After investigation, there is a practical and feasible method, namely the impact elastic wave method, which can be used for nondestructive testing of prestressed pipe piles. This paper proposes a nondestructive testing technology for prestressed pipe piles, the impact elastic wave method, and introduces a signal pickup device for prestressed pipe piles with side walls and bottom damping, improving the technical bottleneck of low strain method for detecting hollow thin-walled structures such as pipe piles, and solving the problems of detecting the length and integrity of hollow thin-walled prefabricated pipe piles. Through large-scale field measurement and on-site pile excavation inspection of all known pipe piles, it has been shown that this detection method can more effectively detect pipe piles. Through measurement and inspection of all known pipe piles, a standard inspection process for the length and integrity of all pipe piles can be established and effectively applied to the inspection of actual projects; Through field inspection, the accuracy of the testing method for pipe pile measurement has been confirmed, and a fast, effective and reliable method for pipe pile measurement has been proposed.