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http://dx.doi.org/10.5762/KAIS.2020.21.11.870

Verticality 3D Monitoring System for the Large Circular Steel Pipe  

Koo, Sungmin (Maritime ICT R&D Center, Korea Institute of Ocean Science & Technology)
Park, Haeyoung (Maritime ICT R&D Center, Korea Institute of Ocean Science & Technology)
Oh, Myounghak (Maritime ICT R&D Center, Korea Institute of Ocean Science & Technology)
Baek, Seungjae (Maritime ICT R&D Center, Korea Institute of Ocean Science & Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.11, 2020 , pp. 870-877 More about this Journal
Abstract
A suction bucket foundation, especially useful at depths of more than 20m, is a method of construction. The method first places an empty upturned bucket at the target site. Then, the bucket is installed by sucking water or air into it to create negative pressure. For stability, it is crucial to secure the verticality of the bucket. However, inclination by the bucket may occur due to sea-bottom conditions. In general, a repeated intrusion-pulling method is used for securing verticality. However, it takes a long time to complete the job. In this paper, we propose a real-time suction bucket verticality monitoring system. Specifically, the system consists of a sensor unit that collects raw verticality data, a controller that processes the data and wirelessly transmits the information, and a display unit that shows verticality information of a circular steel pipe. The system is implemented using an inclination sensor and an embedded controller. Experimental results show that the proposed system can efficiently measure roll/pitch information with a 0.028% margin of error. Furthermore, we show that the system properly operates in a suction bucket-based model experiment.
Keywords
Suction Pile; Verticality; Bucket Foundation; Tilt Sensor; Controller; Display;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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