粘土鉱物の種類に着目した締固めた粘土試料の膨潤圧と透水係数

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タイトル別名
  • Swelling-Pressure and Hydraulic Conductivity of Compacted Clays Focusing on the Clay-Mineral Type
  • ネンド コウブツ ノ シュルイ ニ チャクモク シタ テイガタメタ ネンド シリョウ ノ ボウジュンアツ ト トウスイ ケイスウ

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<p>It is very important to notice clay minerals, for resource development, stability evaluation of underground utilization and others. However, few quantitative data on the effects of clay-mineral type on the swelling characteristics and permeability of clays and clay minerals have been reported to date. This study was conducted to investigate the effects of clay-mineral type on the swelling characteristics and permeability of compacted clays using one-dimensional swelling-pressure and constant-pressure permeability tests. Comparative tests revealed that the difference of clay-mineral type in the clays influences the swelling-pressure and hydraulic conductivity. The swelling-pressure and hydraulic conductivity were closely associated with the specific surface area of clays. Furthermore, hydraulic conductivity was almost consistent that measured with the Kozeny-Carman equation. This result suggests that hydraulic conductivity can be estimated based on a specific surface area and void ratio of compacted clays.</p>

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  • 材料

    材料 70 (3), 272-278, 2021-03-15

    公益社団法人 日本材料学会

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