Effectiveness of non-destructive tests to irrigation canals and tunnels for function diagnosis
2004
Mori, M. (National Inst. for Rural Engineering, Tsukuba, Ibaraki (Japan)) | Tokashiki, M. | Natsuka, I. | Ishimura, H.
Abstract The diagnosis of irrigation and drainage canals and tunnels is generally based on some inspection which is taken by eyes or simples tools, concrete strength by unconfined compression test, and neutralization test until now. But no information had been recorded when the deterioration like open cracks had occurred or how much the crack progressed according to years, which must bebeneficial to assume mechanism of the deterioration. To specify the properties of management of irrigation canals, we collectedseveral standards for the diagnosis of roads or water canals that were applied in another Ministry or Corporation except Ministry of Agriculture, Forestry, and Fisheries, and consider the way to assess agricultural facilities. Moreover, we tried continuous scanningsystem for irrigation and drainage canals inspections. Also, at the point of concrete deterioration that was detected by continuous scanning system, we examined conventional non-destructive tests as the detail survey to get the information about the depth of crack, corrosion of rebar, and deformation of the shape. We recognized that these non-destructive tests were effective.
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