核电厂取水口海域底栖生物起动研究  

Study of benthic organism entrainment in the nuclear power plant instake marine environment

作　　者：张真 袁春光 姜新舒 李奇 ZHANG Zhen;YUAN Chun-guang;JIANG Xin-shu;LI Qi(China Nuclear Power Engineering Co.Ltd.,Beijing 100840,China;Tianjin Research Institute for Water Transport Engineering,Tianjin 300456,China)

机构地区：[1]中国核电工程有限公司,北京100840 [2]交通运输部天津水运工程科学研究所,天津300456

出　　处：《水道港口》2023年第3期340-345,共6页Journal of Waterway and Harbor

基　　金：中央级公益性科研院所基本科研业务费专项资金资助项目(TKS20210101,TKS20230108)。

摘　　要：底栖生物作为一种典型致灾物,已在世界范围内引发多起取水口堵塞事件,在实际工程中备受关注。波、流等水动力条件是底栖生物输移、运动的主要原因之一,对于底栖生物在波浪、潮流作用下的运动特性进行研究,可以为核电厂取水口冷源堵塞风险评估提供有效的工程指导及建议。以自主运动能力较弱的双齿围沙蚕为例,通过波流水槽试验,系统地研究了双齿围沙蚕的沉速、起动流速、起动波高、止动流速、波流条件下输移率等运动特性,并提出了相应的计算方法。Bottom dwelling organism,which is one of the most disaster-inducing factors,caused a number of nuclear power plant water intake blockage accidents in world.More attention has been drawn to benthic organisms in order to evaluate its risk for blockage.In marine environment,the powerful flow of wave and tidal current espescially in storms carries marine organism from one place to another one.It is helpful for nuclear power plant designers and operators to forecast disaster-inducing marine organism′s transportation process.In this paper,the formulas of settling velocity,incipient velocity and wave height,transport rate of nereis succinea are deduced.Experiments are carried out in a wave-current flume at water depth 0.3 m.The analysis shows that the settling velocity increased with increase in individual weight.The influence of individual weight on incipient velocity and wave height is slight.Equations are suggested for estimating the nereis succinea transportation under wave and current.

关 键 词：核电取水安全 双齿围沙蚕 波流试验 运动特性 计算方法 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程]