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新型喷冲式挖沟机总体设计与结构安全性评估

DOI: 10.3969/j.issn.1006-7043.201401063

Keywords: 挖沟机, 结构安全性评估, 海底管线, 有限元

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Abstract:

为解决传统挖沟机设计存在的尺寸过大、难于整体运输、必须拆卸分段运输和重量过大、操作过程中出现意外、易对管道造成伤害两大问题, 提出了一种新型挖沟机的总体设计方案。由于没有专门的挖沟机结构设计规范, 本文基于CCS潜水器规范和有限元技术, 对该挖沟机的结构安全性进行了评估, 并提出了结构设计加强方案。该新型挖沟机在渤海湾锦州251工程完成了海试, 并于垦利海上石油管道挖沟工程完成了30 km的管道铺设。实践证明, 提出的新型海底喷冲式挖沟机总体设计是成功的, 对此类挖沟机的广泛应用和发展具有重要工程意义。

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