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首页> 外文期刊>Cold regions science and technology >Ice damage zone around the Molikpaq: Implications for evacuation systems
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Ice damage zone around the Molikpaq: Implications for evacuation systems

机译：Molikpaq周围的冰冻破坏带：对疏散系统的影响

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摘要

Effective design of an emergency evacuation system from an offshore structure in sea ice conditions must take into account all aspects of the anticipated ice conditions at the site. Evacuation systems are typically comprised of several different components or subsystems. These subsystems allow evacuees a choice in response to the emergency incident onboard the installation, as well as to environmental conditions off the installation. This paper discusses four possible evacuation means—preferred, primary, secondary and tertiary. Of these four techniques, only the preferred means of evacuation is not strongly influenced by the ice regime around the structure. This paper examines these ice regimes and quantifies the size of the broken ice region around a structure for different ice conditions. A large number of parameters affect the size of this broken ice zone including the general ice regime, the existence of a grounded rubble field, the failure mode of the ice, the ice thickness, and the ice roughness. Typical damage zone extent is extremely variable and can be in the order of 25 m from the structure for ice thickness of 1.5 m. This has significant consequences for evacuation systems deployed from the structure.
机译：在海冰条件下从海上结构紧急疏散系统的有效设计必须考虑到现场预期冰条件的所有方面。疏散系统通常由几个不同的组件或子系统组成。这些子系统允许撤离人员根据安装上的紧急事件以及安装附近的环境条件进行选择。本文讨论了四种可能的疏散方法-优先，主要，次要和第三级。在这四种技术中，只有优选的疏散方法不受结构周围冰层的强烈影响。本文研究了这些冰层状况，并针对不同的冰层条件量化了结构周围碎冰区域的大小。大量参数会影响此碎冰区的大小，包括一般的冰区，碎石地面的存在，冰的破坏模式，冰的厚度以及冰的粗糙度。对于1.5 m的冰层厚度，典型的损坏区域范围变化很​​大，大约距结构25 m。这对于从建筑物部署的疏散系统具有重大影响。

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