Intelligent control method and system for vibroflotation construction in hydropower engineering

The vibroflotation construction is a significant measure for foundation improvement in hydropower engineering. At present, the construction of vibro-stone columns is still in the stage of manual operation. The construction process relies largely on the experience and responsibility of workers, which has shortcomings of low precision in pile formation control and low degree of automation, leading to problems such as uneven pile formation, high labor intensity and poor pile quality. Based on the analysis on the mechanism of pile formation and former experiences, an iVCM (intelligent vibroflotation control model) was proposed in this study. By intelligent control of the vibrator current I, the rope pull F, the filler amount Q and the vibrator depth D, intelligent control of vibroflotation construction was realized. An crane- type intelligent vibroflotation control system was developed, which can realize one-button intelligent control of pile formation. Its application in Yingliangbao hydropower station shows that the intelligent vibroflotation control system can regulate the construction operation of pile formation process, improve the vibroflotation quality, reduce labor intensity, and has promising application value in similar projects.