@article{oai:repository.naro.go.jp:02001071,
 author = {石村, 英明 and ISHIMURA, Hideaki and 長束, 勇 and NATSUKA, Isamu and TOKASHIKI, Masaru and 渡嘉敷, 勝 and MORI, Mitsuhiro and 森, 充広 and TANAKA, Yoshikazu and 田中, 良和 and NAKA, Tatsuo and 中, 達雄 and 川口, 周作 and KAWAGUCHI, Shusaku and 松嶋, 茂之 and MATSUSHIMA, Shigeyuki and 作本, 敏和 and SAKUMOTO, Toshikazu},
 journal = {農業工学研究所技報, Technical report of the National Research Institute of Agricultural Engineering},
 month = {Mar},
 note = {An expanded steel pipe joint method,which applies the ductility and tenacity of steel and the elasticity of rubber,was evaluated for quality control and performances of still water,hydraulics,anticorrosion and operations. The results of the watertight performance using full-scale steel pipes 800 mm in nominal diameter were as follows:（1） the expanded joint withstood both thrust force with a bent pipe angle of 45 degrees and level 1 earthquake motions, （2） the watertight performance was more than 1.0 MPa with a compression loading rate of 7 %,flexural loading at an angle of 10 degrees and cyclic axial loading twice the seismic displacement. In addition,the watertight performance was more than 0.1 MPa in the practical test using steel pipe 1200 mm in nominal diameter. In small caliber and practical tests, equal hydraulic performances were observed when the insertion of the inside pipe was in both the upper and lower reaches direction. The coefficient of velocity"C"of the expanded joint was also shown to be equal to the weld joint of the steel pipe. A coating of the expanded joint maintained an anticorrosive performance for a long time even under flooding conditions. As for the expanded steel pipe joint method, execution time was reduced to about 1/3 and execution costs decreased 12% in  comparison to welded joints as seen in the practical tests. As for quality control,the perimeter of peak,length of insertion and deflection were confirmed to be standard values.},
 pages = {209--230},
 title = {拡径接合工法による鋼管継手部の性能評価},
 volume = {203},
 year = {2005},
 yomi = {イシムラ, ヒデアキ and ナツカ, イサム and トカシキ, マサル and モリ, ミツヒロ and タナカ, ヨシカズ and ナカ, タツオ and カワグチ, シュウサク and マツシマ, シゲユキ and サクモト, トシカズ}
}