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Appliod Study on Conservation of Structures in Rivers

河流建筑物保护应用研究

基本信息

批准号：
61850098
负责人：
MUROTA Akira
金额：
$ 5.76万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1987
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-61850098/
关键词：
rever structure spur dike model test compound cross-section revetment water gate 水門降雨波形樋管

项目摘要

Murota and Fukuhara investigated the examples of breakages of hydraulic structures around rapid stream rivers in the Hokuriku district. In addition, to examine the mechanism of their damage, they carried out laboratory experiments using open channels with simple and compound cross-sections and clarified the effects of dynamic fluid force on the breaks of spur dikes and flood planes.To give the directions of operation of tide gates when typhoons strike, Hashino estimated the concurrent characteristics of both heavy rainfalls and large storm surges associated with typhoons through the rainfall-storm surge simulation with a stochastic typhoon model and proposed a stochastic formula of design storm pattern.Kanda carried out a field survey to measure turbulence properties of velocity fluctuation using a ultrasonic flowmeter in rivers in Hyogo Prefecture and investigated the mechanism of erosion at the toe of the concrete revetment.Sato constructed a defurmable rock block model and applied the model to groundwater motion around dam basements and rock slopes in order to examine the effects of its motion on the stability of the structures laid around rivers.

Murota和Fukuhara调查了北陆地区湍急河流周围水工结构的断裂例子。此外，为了研究其破坏机制，他们在室内进行了简单断面和复合断面的明渠试验，阐明了动流体力对直堤和洪面溃决的影响。为了给出台风来袭时潮门的操作方向，Hashino利用随机台风模型对暴雨-风暴潮进行模拟，估计了与台风相关的暴雨和大风暴潮同时发生的特征，并提出了设计风暴型的随机公式。神田利用超声波流量计对兵库县河流流速波动的湍流特性进行了实地调查，并对混凝土护岸趾部的侵蚀机理进行了研究。Sato建立了可变形岩块模型，并将该模型应用于大坝基底和岩坡周围的地下水运动，以考察其运动对河流周围结构稳定性的影响。