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首页> 外文会议>ASME(American Society of Mechanical Engineers)/JSME Pressure Vessels and Piping Conference: Seismic Engineering v.2; 20040725-20040729; San Diego,CA; US >DEVELOPMENT OF THREE-DIMENSIONAL SEISMIC ISOLATION TECHNOLOGY FOR NEXT GENERATION NUCLEAR POWER PLANT IN JAPAN
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DEVELOPMENT OF THREE-DIMENSIONAL SEISMIC ISOLATION TECHNOLOGY FOR NEXT GENERATION NUCLEAR POWER PLANT IN JAPAN

机译：日本下一代核电站的三维地震隔离技术开发

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摘要

Mitigation of earthquake loads by seismic isolation technology is very promising for enhanced safely and economy of the next generation nuclear reactors, through rationalized and simplified design of structures, systems and components. The horizontal base isolation with laminated rubber bearings is a proven technology and its application has been widely spread including nuclear facilities. On the other hand, significantly increased benefit of mitigated seismic loads is expected with three-dimensional (abbreviated 3D) seismic isolation, since the earthquake loads are inherently three-dimensional and the vertical component of the earthquake load sometimes plays an important role in the structural design of reactor components. From these points of view, a research project has been undertaken for the development of 3D seismic isolation technology, under the sponsorship of the Ministry of Economy, Trade and Industry of the Japanese government. It was presented in a former conference that two types of 3D seismic isolation systems were applicable to the next generation nuclear power plants. One is 3D base isolation of a whole nuclear island, and the other is a vertical isolation system for main components with horizontal base isolation system. Among a number of proposed concepts, three were promising ideas for the 3D base isolation system (or device), i.e., "hydraulic 3D base isolation system", "independent cable reinforced rolling-seal air spring", and "rolling seal type air spring". Then the last idea, i.e., "rolling seal type air spring", was selected from above three ideas for further development. In this paper, current status of this R&D project are firstly shown. Next, the performance requirements for 3D isolation system and devices are shown. Then the developing targets for 3D isolation technology are shown. Furthermore, future plan of the project is provided.
机译：通过结构，系统和组件的合理化和简化设计，通过地震隔离技术减轻地震载荷对于提高下一代核反应堆的安全性和经济性非常有希望。带有叠层橡胶轴承的水平基础隔振是一项经过验证的技术，其应用已广泛应用于包括核设施在内。另一方面，通过三维（简化的3D）地震隔离，预计减轻的地震荷载将带来更大的收益，因为地震荷载本来就是三维的，并且地震荷载的垂直分量有时在结构中起重要作用。反应堆组件的设计。从这些观点出发，在日本政府经济，贸易和工业部的赞助下，正在进行一项有关3D地震隔离技术开发的研究项目。在前一次会议上提出，两种类型的3D地震隔离系统适用于下一代核电站。一个是整个核岛的3D基本隔离，另一个是带有水平基本隔离系统的主要组件的垂直隔离系统。在许多提议的概念中，有3个关于3D基础隔离系统（或设备）的有前途的构想，即“液压3D基础隔离系统”，“独立的电缆加强型滚动密封空气弹簧”和“滚动密封式空气弹簧” ”。然后从以上三个构想中选择最后一个构想，即“滚动密封式空气弹簧”，以进一步发展。本文首先展示了该研发项目的现状。接下来，显示了3D隔离系统和设备的性能要求。然后显示了3D隔离技术的发展目标。此外，还提供了该项目的未来计划。

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