琚烈红,刘清君,黄哲,沙海明.海堤安全风险评估技术研究[J].海洋工程,2022,40(3):93~104
海堤安全风险评估技术研究
Research on seawall safety risk level assessment technology
投稿时间:2021-08-17  
DOI:10.16483/j.issn.1005-9865.2022.03.011
中文关键词:  海堤  洪水灾害  结构安全  风险评价  安全等级
英文关键词:seawall  flood disaster  structural safety  risk evaluation  security level
基金项目:国家重点研发计划项目(2018YFC0407503-4);南京水利科学研究院中央级公益性科研院所基本科研业务费专项资金项目(Y221017)
作者单位E-mail
琚烈红 南京水利科学研究院 水文水资源与水利工程科学国家重点实验室, 江苏 南京 210029 hmsha@nhri.cn 
刘清君 南京水利科学研究院 水文水资源与水利工程科学国家重点实验室, 江苏 南京 210029  
黄哲 南京水利科学研究院 水文水资源与水利工程科学国家重点实验室, 江苏 南京 210029  
沙海明 南京水利科学研究院 水文水资源与水利工程科学国家重点实验室, 江苏 南京 210029 hmsha@nhri.cn 
摘要点击次数: 36
全文下载次数: 25
中文摘要:
      我国现行规范体系中,关于堤防工程安全标准的确定,主要根据工程级别确定设计重现期,从而选定工程设计参数。文中提出了依据安全风险评估的结果确定海堤安全风险等级方法。首先,通过对海堤灾害进行风险识别和分析,将洪水灾害和海堤结构自身安全失效作为海堤灾害两种主要形式,建立了海堤灾害故障树。然后,将水文动力条件作为随机变量,从频率分布角度定量计算海堤洪水灾害风险程度和结构安全失效风险,提出了海堤安全风险评价方法。最后,依据规范中关于海堤等级和重现期标准的规定,结合海堤洪灾安全风险和结构自身安全风险的评价结果,确定海堤安全风险等级。文中提出的海堤安全评价技术依据海堤风险定量计算结果,从海堤现状条件满足其设计功能目标有效程度,判定海堤安全等级的级别,是一种相对较新且更科学的方法。该海堤安全风险评估技术为海堤管理和建设提供科学支撑。
英文摘要:
      In China's current standard system, the determination of safety standards for seawall projects is mainly based on the engineering level to determine the design return period, so as to select the engineering design parameters. This paper proposes a method to determine the safety failure risk level of seawalls based on the results of safety risk assessment. First of all, through the risk identification and analysis of seawall disasters, the flood disaster and the safety of the seawall structure are regarded as the two main forms of seawall disasters, and the seawall disaster fault tree is established. Then, using dynamic conditions as random variables, the degree of seawall flood disaster risk and structural safety failure risk are quantitatively calculated from the perspective of frequency distribution, and a seawall safety risk assessment method is proposed. Finally, according to the regulations on seawall level and return period standards in the specification, and based on the evaluation results of seawall flood safety risk and the structure's own safety risk, the seawall safety risk level is determined. The seawall safety evaluation technique proposed in this paper is a relatively new and scientific method to determine the safety level of seawall from the effective degree that the current conditions of seawall meet the design function objective according to the quantitative calculation results of seawall risk. The seawall safety risk assessment technology provides scientific support for seawall management and construction.
查看全文  查看/发表评论  下载PDF阅读器
关闭
水利部交通运输部国家能源局南京水利科学研究院 海洋工程  版权所有
地址: 南京虎踞关34号 邮编:210024 电话:025-85829332 E-mail: oe@nhri.cn
苏ICP备05007122号