Author(s): Shiro Maeno; Akira Yamamura; Kimiko Kaseguma
Linked Author(s): Shiro Maeno
Keywords: No Keywords
Abstract: The authors developed a frame-shaped connected stone model as a nature oriented bed protection work. For these types of hydraulic structures, it is necessary to put appropriate size gravel in the frame to protect the filled gravel against scouring. However, it is considered that some scouring of the filled grave can be allowed in designing this type of frame-shaped connected stone model. Therefore, in this study, hydraulic characteristics of the frame-shaped connected stone model and critical tractive force on the filled gravel were investigated by model experiments. Experimental results show that the velocity decreases in the frame and the critical tractive force increases due to the frame of the connected stones. The critical tractive force of the frame-shaped connective stone model is similar to that of gabion mattresses.
Year: 2009