The invention relates to the technical field of
pile foundation monitoring, and discloses a
pile foundation state real-time monitoring and diagnosis
system based on a digital twinborn technology. The
system comprises a multi-
source data acquisition module, a data confidence evaluation module and an
acoustic emission monitoring decision module. The multi-
source data acquisition module comprises a plurality of sensor groups deployed at different depths of a
pile foundation, each group comprises a
strain sensor, an acceleration sensor, an
acoustic emission sensor and a temperature sensor, and pile foundation data can be acquired in multiple dimensions; the data confidence evaluation module receives
original data, generates a correction data sequence through
time sequence noise separation and reconstruction, and calculates data confidence according to correction data distribution dispersion; the
acoustic emission monitoring decision module judges whether acoustic emission monitoring is started or not according to the data confidence coefficient, and controls the acoustic emission
sensor array at the top of the pile foundation to collect acoustic emission signals during starting. The
system can comprehensively obtain pile foundation data, improve
data accuracy, achieve early damage recognition and guarantee pile foundation safety.