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基于独立保护层方法的立管风险研究
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作者 孙晓东 《科技创新与应用》 2020年第28期112-113,共2页
文章探讨了ALARP分析的理论基础和方法,研究了国际风险可接受水平标准,并采用定量方法对某海上平台立管进行了ALARP分析,论证了已有安全措施满足甲方的风险可接受水平,无需增加额外保护,节约了工程成本。本方法的实际工程应用为解决类... 文章探讨了ALARP分析的理论基础和方法,研究了国际风险可接受水平标准,并采用定量方法对某海上平台立管进行了ALARP分析,论证了已有安全措施满足甲方的风险可接受水平,无需增加额外保护,节约了工程成本。本方法的实际工程应用为解决类似问题提供了参考。 展开更多
关键词 风险可接受水平 立管保护 撞船风险
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新型S-Spar概念设计及时域动力响应分析
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作者 常爽 黄维平 于卫红 《船舶力学》 EI CSCD 北大核心 2020年第6期776-786,共11页
本文概念性地提出了新型Spar平台S-Spar用于深水和超深水海洋油气开发。S-Spar连接软舱和硬舱的是和中央井同尺寸的圆形立柱。有别于传统的经典Spar和Truss Spar,S-Spar有一个细长的中间段,垂荡板安装在中间段增加垂荡阻尼的同时,封闭... 本文概念性地提出了新型Spar平台S-Spar用于深水和超深水海洋油气开发。S-Spar连接软舱和硬舱的是和中央井同尺寸的圆形立柱。有别于传统的经典Spar和Truss Spar,S-Spar有一个细长的中间段,垂荡板安装在中间段增加垂荡阻尼的同时,封闭的中段可以保护立管免受波流荷载。文中介绍了S-Spar的基本概念,进行了频域和时域耦合动力响应分析,并进行了S-Spar连接的顶张式立管的动力响应和VIV疲劳分析,将计算结果和Truss Spar的计算结果相比较,结果显示新型S-Spar能改善平台的水动力性能,同时封闭的中央井对立管起到很好的保护作用。 展开更多
关键词 超深水 S-Spar 动力响应 立管保护
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The Policies of Seismic Risk Management: Case of the Protected Areas of Dellys and Tenes Cities, Algeria
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作者 Farida Sehili Said Madani 《Journal of Civil Engineering and Architecture》 2017年第2期121-126,共6页
The greater part of urban heritage, especially of the medium and small Algerian cities, is subject to a major seismic risk. The probability of a happening earthquake is strong, and the territories vulnerability is gre... The greater part of urban heritage, especially of the medium and small Algerian cities, is subject to a major seismic risk. The probability of a happening earthquake is strong, and the territories vulnerability is great. Legislative procedures are implemented to support urban heritage and managing natural disasters. In fact, the PPSMVSS (permanent plan of safeguard and enhancement of saved sectors) as an instrument of protection, preservation and enhancement of this heritage, in its content, does not guide decision makers on how to manage the vulnerability of preserved areas from the earthquake. After the disaster of the earthquake that hit the Algerian Centre (wilaya of Boumerdes) in 2003. A legislative framework was created while other texts have been adapted. Emergency measures operations are launched to preserve the under threat monuments and protected areas. Saved sectors of Dellys, in the wilaya of Boumerdes and T6n^s in the wilaya of Chlef, are all the time subjected to seismic risk. This article presents a comparative study of two PPSMVSS, Dellys and T6n6s, and the management of the vulnerability of their two safeguarded areas. As a result of this study, some indicators were identified to allow the development of plans for the protection and management natural risks of these protected areas. 展开更多
关键词 Safeguarded sector PPSMVSS CATASTROPHE seismic risk management.
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