Appliod Study on Conservation of Structures in Rivers

Murota和Fukuhara调查了北陆地区急流河流周围水工建筑物的破坏实例。此外，为了探讨其破坏机理，他们还进行了简单断面和复式断面明渠的室内试验，阐明了动水动力对丁坝和洪水面溃决的影响，为台风来袭时防潮闸的操作提供指导。Hashino通过降雨估计了与台风相关的暴雨和大风暴潮的并发特征-Kanda用随机台风模型模拟了风暴潮，提出了设计风暴潮型的随机公式。Kanda在兵库县的河流中用超声波流量计测量了流速脉动的湍流特性，研究了混凝土护岸底部的侵蚀机理。Sato建立了可除霜岩石块模型，并将其应用于设计风暴潮型的随机公式中。Kanda在兵库县的河流中进行了现场调查，研究了混凝土护岸底部的侵蚀机理。Kanda在兵库县的河流中使用了超声波流量计，研究了混凝土护岸底部的侵蚀机理。Kanda在兵库县的河流中使用了超声波流量计，研究了混凝土护岸底部的侵蚀机理。Sato在兵库县的河流中使用了可除霜岩石块模型，并将其应用于设计风暴潮型的随机公式中。模型，以研究地下水运动对河流周围建筑物稳定性的影响。

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.