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《Oil & Gas Storage and Transportation》 2019-05
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The effect of anchoring activity on the burial depth of submarine pipeline

WANG Qifu;LI Xuedong;NING Jun;Navigation College, Dalian Maritime University;China Waterborne Transport Research Institute, Ministry of Transport of the People's Republic of China;  
The protection of submarine pipelines has always been the key point in the pipeline engineering. In the offshore waters, especially in the maritime traffic-intensive waters, the anchoring activities of ships have always been an important factor leading to pipeline incidents. A reasonable value of burial depth should be proposed by comprehensively analyzing the embedded depth of the anchor in the seabed, so as to effectively avoid the damage to the pipelines by the anchors. Domestic and foreign standards on the burial depth of submarine pipeline were compared, and the types of the possible damage to submarine pipelines by anchoring activities were analyzed. Then, the relationships between the anchoring activities of ships and the burial depth of submarine pipeline were analyzed from two aspects, i.e., the penetrating depth after the anchor hits the seabed during the anchoring and the maximum depth that the anchor fluke can run into the seabed while dragging the anchor.Based on the burial depths in foreign standards, it is suggested that a more reasonable burial depth of submarine pipeline is1.5-2 m in the maritime traffic-intensive waters.(2 Figures, 4 Tables, 21 References)
【Fund】: 中央高校基本科研业务费资助项目“船舶航行对近海设施的影响分析” 3132017115
【CateGory Index】: TE973.92
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