In this study, for practical use, we carried out the field tests (with pipe diameter: 300mm) at actual reservoir to examine the hydraulic characteristics, the applicability to the material, and the equipment availability of the burrowing type sediment removal suction pipe. As a result, it was confirmed that the pipe could discharge sediment at almost the expected performance for reservoir material (almost non-cohesive debris-less sediment material). Furthermore we were revealed the development necessity such as sediment concentration measurement method. |