Multi-sensor integrated monitoring equipment and its application to dynamic compaction quality in construction

Due to high labor costs, low monitoring efficiency, and susceptibility to subjective factors, manual monitoring methods are gradually difficult to meet the needs of dynamic compaction construction development. To this end, we innovatively developed a vision-based intelligent monitoring equipment and its supporting systems, focusing on key indicators during construction (tamping points layout, tamping times and tamping settlement). By integrating technologies such as GNSS-RTK, computer vision and photogrammetry, we monitor the operation of the Dynamic Compaction Crane (DCC), track the motion of the hammer, so as to achieve automatic monitoring of dynamic compaction construction process to provide feedback for construction control. The field experiment verified the monitoring accuracy and practical feasibility of the intelligent equipment. The non-contact monitoring method can reduce the interference of manual monitoring on construction, greatly improve the construction efficiency, and provide more objective and accurate monitoring results.