SOIL FRACTURING OF THE SURROUNDING CLAY DURING DEEP MIXING COLUMN INSTALLATION

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概要

• 論文の詳細を見る

• During deep mixing (DM) column installation, excess pore pressure arises in the surrounding clay due to the injection of chemical admixtures and the shearing action caused by blade rotation. The excess pore pressure is greater than the in-situ effective stress, resulting in fractures in the surrounding clay. Pore water infiltrates into fractures, and the consolidation of clay is accelerated. The chemical admixture penetrates into the fractures and thereby exchangeable cations diffuse into the surrounding clay effectively. All of these effects accelerate the strength increase of the surrounding clay after the installation of DM columns. The main objective of this study is to confirm the aforementioned phenomena. These phenomena are verified through (1) a laboratory vane shear test, (2) a laboratory test on a model column made in a model clay ground, and (3) full-scale field tests on DM column installation.

• 社団法人地盤工学会の論文
• 1999-10-15

著者

• 三浦 哲彦

  Professor Department Of Civil Engineering Saga University 1 Honjo-machi Saga 840-8502 Japan.

• Miura N

  Saga Univ. Saga

• SHEN SHUILONG

  Lecturer, Institute of Lowland Technology, Saga University, 1 Honjo, Saga 840-8502.

• Shen S‐l

  佐賀大 低平地防災研セ

• Shen Shui-Long

  Lecturer, Institute of Lowland Technology, Saga University, 1 Honjo, Saga 840-8502.

関連論文

• MODELLING AND STUDY OF SMEAR ZONES AROUND BAND SHAPED DRAINS
• PREDICTION OF PULLOUT RESISTANCE AND PULLOUT FORCE-DISPLACEMENT RELATIONSHIP FOR INEXTENSIBLE GRID REINFORCEMENTS
• Engineering Behavior of Cement Stabilized Clay at High Water Content (IS-YOKOHAMA 2000「沿岸域の地盤工学における理論と実際」特集号〔英文〕)
• SOIL FRACTURING OF THE SURROUNDING CLAY DURING DEEP MIXING COLUMN INSTALLATION
• 高い等方圧力を受ける砂の圧縮特性について
• 高拘束圧下における標準砂の排水せん断特性について

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