土工基础

土工基础 ›› 2023, Vol. 37 ›› Issue (1): 78-82.

• 专题论述 • 上一篇    下一篇

船舶抛锚冲击海底生产系统防护装置的研究

安维峥1，范晓亮2，王栋2，刘国恒1，沈晓鹏1，郑敬宾2，栾鲁宝2   

  1. （1.中海石油（中国）有限公司北京研究中心，北京 100010；2.中国海洋大学环境科学与工程学院，山东 青岛 266100）
  • 收稿日期:2021-07-26 修回日期:2021-08-05 出版日期:2023-02-24 发布日期:2023-03-08
  • 通讯作者: 栾鲁宝（1989-），男，博士后，研究方向为结构土体相互作用。
  • 作者简介:安维峥（1979-），男，硕士，研究方向为水下生产系统及设备国产化设计关键技术。〖ZK)〗

Analysis of Submarine Protective Device for the Production System Impacted by the Ship Anchor Drops

AN Weizheng1, FAN Xiaoliang2, WANG Dong2, LIU Guoheng1, SHEN Xiaopeng1, ZHENG Jingbin2， LUAN Lubao2   

  1. (1.Beijing Research Center of CNOOC (China) Co. Ltd, Beijing, 100010；
    2.College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100)
  • Received:2021-07-26 Revised:2021-08-05 Online:2023-02-24 Published:2023-03-08

摘要： 海上船舶应急抛锚冲击到水下管线会影响到水下生产系统的正常作业，采用模型试验和数值计算相结合的手段开展了落锚冲击对水下生产系统防护装置的影响研究。首先依托实际工程设计了落锚冲击的动力模型试验，开展了不同高度处落锚冲击防护系统的模型试验研究，分析了海底防护系统顶盖受落锚冲击时的动力响应，发现在所研究工况范围内，落锚冲击后会产生二次冲击。基于ABAQUS有限元软件，建立了锚-防护系统-海床土体相互作用的冲击计算模型，通过物理和数值模拟结果的比较，验证模型试验和数值模型的可靠性。

关键词: 抛锚, 防护装置, 冲击, 模型试验, 数值模拟

Abstract: The normal operation of the submarine production system will be adversely affected by the emergency anchor drops. Approaches of model tests and numerical simulations are used in this paper to analyze the influence of anchor drops on protective devices for the submarine production system. At the first, a dynamic model test of anchoring impact is designed based on the practical engineering, to conduct the corresponding tests at different heights of dropping anchors. Time domain responses of the protective device are analyzed: the protective device is impacted followed by a second impact. Secondly, the dynamic interaction model of the anchor drop-protective system-submarine soil is established using the commonly used finite element software i.e. ABAQUS to conduct related numerical simulations. The practicability of the finite element model is verified through results of the model tests. 



Key words: Anchor Drops, Protective Device, Impact Effect, Model Test, Numerical Simulation

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