掲載雑誌(和): 日本地震工学シンポジウム論文集 Vol: 9-1巻 年: 1994年 頁: 871-876頁 著者(和): 規矩 大義, 安田 進, 増田 民夫, 板藤 繁, 峯 啓一郎 タイトル(和): 液状化した砂の強度・変形特性に関するねじりせん断試験 抄録(和):
- キーワード(和): - 掲載雑誌(英): PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者(英): Hiroyoshi KIKU, Susumu YASUDA, Tamio MASUDA, Shigeru ITAFUJI, Keiichiro MINE タイトル(英): TORSIONAL SHEAR TESTS ON THE DEFORMATION CHARACTER OF SAND BEFORE AND AFTER LIQUEFACTION 抄録(英):
To study the post liquefaction behavior of the sand, torsional shear tests on saturated sand were performed under several conditions. In the tests, a prescribed number of cyclic loadings were applied first, then, a monotonic loading was applied in undrained condition. The stress-strain relationships during the monotonic loading are discussed. As a result, the stress-strain curves were affected by the excess pore water pressure ratio and by the severity of liquefaction. The shear modulus decreased to less than 1/1000 due to liquefaction, and shear strain increased more than 10% with very low stress in the liquefied specimen. And, there exists a so called "reference strain at resistance transformation, ■ " which increases with the decreases in soil density, confining pressure and severity of liquefaction. キーワード(英): - 記事区分 - 区分    委員会論文集