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タイトルヨミ
オオガタ アツミツ ソウチ ニヨル シメカタメ フ ホウワド ノ アツミツ ジッケン
日本語以外のタイトル
Experimental Study of Consolidation of Compacted Partially Saturated Soils Using Large Consolidometer
ファイル
言語
日本語
著者
鳥山 晄司
内容記述(抄録等)
The one dimensional compression tests of compacted soils under undrained and drained conditions were carried out using large consolidometer. The size of specimen is 30cm diameter and 10cm height. The soils used in the experiment are a clayey soil and mixed soils of the clayey soil and gravel which maximum diameter is 10 mm.
From this experiment, the following results are obtained.
(1) Under undrained condition, the pore pressure built up by compressive stress in clayey soil is little in dry side of optimum moisture content ω_<opt> and large in wet side of ω_<opt>.
When compressive stress is again applied after consolidation of clayey soil, the pore pressure built up under undrained condition is increased in dry side of ω_<opt> and decreased in wet side of ω_<opt> in comparison with the pore pressure at first time.
(2) The coefficient of consolidation c_v is obtained from compressive strain ε, pore water pressure u_w and pore air pressure u_a. The value of c_v for ε, u_w and u_a are mutually different and the values of c_v for u_w and u_a are greater than that for ε.
(3) The rate of secondary consolidation dε/d log t is about 1×<10>^^^<-3>~3×<10>^^^<-3> and this is equal to the value obtained by other many compacted soils with standard oedometer.
(4) The great pore pressure is remained after the colmpletion of primary consolidation of compressive strain ε.
(5) The mixture of gravel in clayey soil has effects on the decrease of void ratio and the increase of coefficient of consolidation.
掲載誌名
島根大学農学部研究報告
19
開始ページ
110
終了ページ
117
ISSN
0370940X
発行日
1985-12-20
NCID
AN00108015
出版者
島根大学農学部
出版者別表記
Shimane University, Faculty of Agriculture
資料タイプ
紀要論文
部局
生物資源科学部
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