Study of interface monitoring technology for bored concrete infill piles

Bored piles have been widely used in highway, railway, and other structural engineering foundations due to their mature construction technology, high bearing capacity, and wide range of applications. Inaccurate positioning of the concrete filling interface in bored pile holes will easily lead to overfilling and other engineering diseases, resulting in material waste and cost increases. The current method of rope-tied hammer measurement is time-consuming, labor-intensive, and cannot accurately determine the concrete surface. In order to dynamically monitor the concrete grouting interface, this paper develops a concrete grouting interface monitoring system based on the solid-liquid buoyancy principle, which determines the height of the grouting interface position by monitoring the buoyancy value and controls the motor forward and reverse working states to achieve the purpose of intelligent monitoring of concrete grouting interface. It solves the problem of overfilling or underfilling, realizes green construction and improves quality, and increases capital.