Open AccessLow Strain Detection and Numerical Simulation of Pile Integrity
Author(s) -
Li-hua Wei
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/825/1/012026
Subject(s) - pile , foundation (evidence) , structural engineering , bridge (graph theory) , computer simulation , boundary value problem , boundary (topology) , geotechnical engineering , computer science , geology , engineering , simulation , mathematics , medicine , mathematical analysis , archaeology , history
The low strain reflected wave method is used to detect the integrity of pile foundation of a domestic bridge, and various types of defective pile models are constructed. A large number of tests are carried out to analyze the complete pile installation and different defects. At the same time, considering the influence of pile material properties, soil parameters around the pile, boundary conditions and damping coefficient on the reflected wave, the test results are compared with the numerical simulation results. The results show that: low strain detection technology is convenient and easy to operate, but due to its own limitations, it should be combined with numerical simulation and other methods to learn from each other, comprehensive analysis, in order to better judge the integrity of the pile.