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실내실험을 통한 트라이포드 석션버켓의 수직도 자동제어 기술의 검증
신진화,이주형 한국풍력에너지학회 2022 풍력에너지저널 Vol.13 No.4
In general, a tripod-shaped foundation secures its verticality by repeating penetration and drawing when suction penetration is performed. These repetitive tasks not only require a skilled operator, but are also less efficient. In this study, an automatic slope control system was developed to verify the slope control performance based on tripod suction in a sandy soil environment. The slope of the tripod suction base was measured, and the relative height of each suction bucket was calculated from the center of the tripod with a formula. The control program reduces the pump output of the suction bucket that penetrates too quickly by controlling the suction pressure of each suction bucket by sending an on/off signal to the suction pump according to the relative height. With such repetitive work, the relative height converges to 0 and the verticality of the structure can be secured while suction penetration is performed. As a result of the experiment, the effect of controlling the slope depending on the optimal limit setting height and penetration depth was confirmed, and a vertical degree within 0.5° was ensured. When installing a tripod suction bucket, the automatic tilt control method using the relative height is efficient without relying on the experience of the operator.