摘要
为使人工鱼礁在淤泥质底质上保持稳定不发生淤埋,提出了一种新型人工鱼礁,主要包含鱼礁本体、浮力基础、筒形桩。基于调研及测量的地质、水文、极限风浪流等信息,通过Stockes波理论和Fluent软件模拟鱼礁周围的流场效应,采用理论分析和数值仿真方法分别计算得到人工鱼礁上的环境载荷,并通过理论分析得到淤泥地基下的负压筒形桩的抗拔力及水平抗力。结果显示,新型人工鱼礁在给定的投放环境下能保持稳定,不发生淤埋,其在波流作用下抗滑移和抗倾覆安全系数均满足规范要求。本研究可为淤泥质底质上人工鱼礁提供设计方法,具有一定的指导意义。
In order to keep the artificial reefs stable on the silty substrate without sedimentation,a new type of artificial reefs is proposed in this paper,mainly including the reef body,buoyancy foundation,and cylindrical piles.Based on the surveyed and measured geological,hydrological,extreme wind and wave flow,Stockes wave theory and Fluent software were used to simulate the flow field effects around the reefs,and the environmental loads on the artificial reefs were calculated through theoretical analysis and numerical simulation.Through theoretical analysis,the pull-out resistance and horizontal resistance of the negative-pressure cylindrical pile under the silt foundation were obtained.Finally,it was obtained that the new artificial reefs can be kept stable without sedimentation under a given release environment,and its anti-slip and anti-overturning safety factors under the action of wave current can meet the specifications.This study provides a method for the design of artificial reefs on silty substrates,and has certain guiding significance.
作者
周秋萍
盛国强
ZHOU Qiuping;SHENG Guoqiang(Institute of Industry Technology,Guangzhou Academy of Sciences,Guangzhou 511458,Guang dong,China)
出处
《渔业现代化》
CSCD
2020年第3期45-51,共7页
Fishery Modernization
基金
中国科学院STS计划区域重点项目“浅水域生态型开发技术(KFJ-STS-QYZD-007)”。
关键词
人工鱼礁
淤泥质底质
环境载荷
流场效应
稳定性
artificial reefs
silty substrate
environmental load
flow field effect
stability
