权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Research on earth-and-sand control of the artificial reef installed near the mouth of a river

河口人工鱼礁防沙研究

基本信息

批准号：
18560506
负责人：
MINAMI Masato
金额：
$ 1.03万
依托单位：
Hachinohe National College of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560506/
关键词：
Artificial Reefs Opening Local Scour Topographical Change Return Flow 漂砂土砂制御離岸堤

项目摘要

Earth and sand are supplied from a river. The sands of the seashore are maintained when it moves to the shore by sea waves. It becomes a dynamic equilibrium. However, beach erosion progresses in the following case. It is reduction of a river discharge and sand. A lot of concrete blocks must be installed near shoreline, and the seashore must be protected. Moreover, when earth-and-sand supply is cut off, the depth of water of the front of wave absorbing works becomes deep. And it will be scattered about with subsidence one after another, and maintenance will take much cost.This research installs an artificial reef near a mouth of a river; the method of capturing the earth and sand from a river more effectively is the purpose. Installation of an artificial reef will produce a local seashore flow. A suitable setting position, method, etc. are examined using this. When installing an artificial reef near a mouth of a river, it is necessary to get to know about current appearance and earth-and-sand movement. In particular, it is necessary to clarify the sand trapping effect of the discharge earth and sand from a mouth of a river. It is observed that there is also an advance tendency of shoreline. Then, the geographical feature change characteristic of the artificial reef installed in certain seashore in the Sea of Japan was arranged.Moreover using the application of the extended type Boussinesq model, we calculate for the time series wave field around the opening. Furthermore, we compare the amount of geographical feature change using the various amount calculation formulas of sediment transport and the amount of local measured depth change. By installing an artificial reef group, it has ten percent of the amount of discharge earth and sand from a river.

土和沙子由河流供给。海边的沙子被海浪移动到岸边时得以保持。它成为一种动态平衡。然而，在以下情况下，海滩侵蚀会加剧。减少河流排放量和沙子。必须在海岸线附近安装大量混凝土块，并且必须保护海岸。而且，当土砂供应被切断时，吸波工程前部的水深会变深。而且会散落一地，不断沉降，维护成本很高。目的是更有效地从河流中捕获土和沙的方法。安装人工鱼礁将产生当地的海岸水流。利用它来研究合适的设置位置、方法等。在河口附近设置人工鱼礁时，有必要了解河口现状和土沙运动情况。特别是需要明确河口排放土砂的截沙效果。据观察，海岸线也有前移的趋势。然后，对日本海某海岸设置的人工鱼礁的地理地貌变化特征进行了整理。并应用扩展型Boussinesq模型，计算了开口周围的时间序列波场。此外，我们还使用各种泥沙输送量计算公式和当地实测深度变化量来比较地理地物变化量。通过安装人工鱼礁群，其排沙量相当于河流的百分之十。

项目成果

期刊论文数量（0）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Shoreline Change Around Detached Breakwater

独立防波堤周围的海岸线变化

DOI：
发表时间：
2007
期刊：
Japan-Vietnam Estuary Workshop
影响因子：
0
作者：
三木達也;杉原裕司;津守博通;河津那由他;辻本剛三;辻本剛三;Masato MINAMI
通讯作者：
Masato MINAMI

Research on wave height around a detached breakwaters and the amount of shoreline change

独立防波堤周围波高及岸线变化量研究

DOI：
发表时间：
2007
期刊：
Asian and Pacific Coasts 2007, Nanjing China
影响因子：
0
作者：
Masato MINAMI;Akira MANO
通讯作者：
Akira MANO

Effect of Detached Breakwater Alignment on Shoreline Change

独立防波堤排列对海岸线变化的影响

DOI：
发表时间：
2006
期刊：
15^<th> APD-IAHR ＆ ISMH
影响因子：
0
作者：
森啓之;南將人;T.Sato;B.Ontowirjo;田中仁;中山大輔;佐藤正視;Masashi SATO;伊福誠;中田正人;森啓之;Masato MINAMI
通讯作者：
Masato MINAMI

離岸堤背後の汀線変化と波浪場変化に関する研究

独立防波堤后岸线变化及波场变化研究