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No.51 (2004/12) >

 
Title :長年月を経たダム堤体盛土の力学特性に及ぼす年代効果の影響
Title alternative :Aging Effects on Mechanical Properties of Compacted Soil which Constitutes Earth Dam Passed through Long Period
Authors :小宮, 康明
新城, 俊也
宮城, 調勝
Authors alternative :Komiya, Yasuaki
Shinjo, Toshiya
Miyagi, Norikatsu
Issue Date :1-Dec-2004
Abstract :築堤から43年の年月を経た宜野座ダムの堤体盛土とその縮固め土では力学性状が異なり,堤体盛土の方が締固め土よりも体積圧縮係数土圧密降伏応力,せん断強度等が大きく,弾性変形領域が広く,間隙水圧の発生量が低い傾向がみられた.このような差違は年代効果によると考えられる.終わりに,試料採取においては沖縄県北部農林土木事務所にご協力を頂き,小那覇安通氏には宜野座ダムに関する資料を提供して頂いた.記してお礼申し上げる.
This study was conducted to investigate the aging effects on mechanical properties of compacted soil. The consolidation and shear strength parameters were measured on the undisturbed soil sample collected from 7.8m depth in Ginoza earth dam passed through 43 years and its compacted soil. Volumetric compressibility, consolidation yield stress, shear strength of the dam soil were bigger than those of its compacted soil, and the elastic deformation region of dam soil was wider than that of its compacted soil and the generation rate of pore water pressure tended to be low with the passage of the time. It seemed that these differences were caused by the aging effects.
Type Local :紀要論文
ISSN :0370-4246
Publisher :琉球大学農学部
URI :http://hdl.handle.net/20.500.12000/3573
Citation :琉球大学農学部学術報告 = The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus no.51 p.107 -111
Appears in Collections:No.51 (2004/12)

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