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Design of rubble mound river structures from a view point of hydrospheric environment

水圈环境视角下的堆石丘河流结构设计

基本信息

批准号：
14350268
负责人：
MICHIOKU Kohji
金额：
$ 5.38万
依托单位：
Kobe University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350268/
关键词：
river structures ecological system rubble mound structures weir groin fish ladder water quality 河川整備透過水制透過性構造物堰透水性護岸水質

项目摘要

River structures constructed with rubble mound may create environment being friendly to nature. It is expected that aeration would be promoted by turbulence in the rubble mound and pore may provide living space for aquatic lives. Based on the scientific background established during the last program from the Grant in Aid for Scientific Research in the fiscal 2000 and 2001, we extended our research activities to more various engineering topics. The river structures we investigated are groin, shore protection works, rough ramps, artificial pools, fish ladders. In addition to hydraulic properties of the structures, ecological systems around the structures were examined in this program. A field measurement was carried out in order to examine effects of the structures on hydraulic and ecological systems. Various types of laboratory experiment were carried out with respect to each structure. Flow and turbulence properties around the structures were measured and numerical models were developed for reproducing the flow field. In most cases, reproduction performance of the numerical model was satisfactory which will be a powerful engineering tool for making design of the structures. Research achievements have been published and are scheduled to be published in journals and conference proceedings.

用碎石丘建造的河流建筑物可以创造出对自然友好的环境。预计碎石丘内的湍流将促进充气，毛孔可能为水生生物提供生存空间。基于2000财年和2001财年科学研究助学金上一次计划中建立的科学背景，我们将研究活动扩展到更多不同的工程主题。我们调查的河流构筑物有腹股沟、护岸工程、崎岖的坡道、人工池、鱼梯。除了建筑物的水力特性外，本计划还对建筑物周围的生态系统进行了检查。为了检验这些建筑物对水力和生态系统的影响，进行了现场测量。针对每个结构进行了各种类型的实验室实验。对结构物周围的流动和湍流特性进行了测量，并建立了模拟流场的数值模型。在大多数情况下，数值模型的再现性能是令人满意的，这将是进行结构设计的有力的工程工具。研究成果已经发表，并计划在期刊和会议记录上发表。