A Non-Pressurized Grouting Method using Clay for Controlling Groundwater. A Theory of Clay Grouting and the Construction Record of Kuji Underground Oil Storage Plant.

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  • 粘土グラウトによる地下水の制御　その理論と石油地下備畜・久慈基地の施工実績
  • ネンド グラウト ニ ヨル チカスイ ノ セイギョ ソノ リロン ト セキユ
  • A Theory of Clay Grouting and the Construction Record of Kuji Underground Oil Storage Plant
  • その理論と石油地下備蓄・久慈基地の施工実績

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Generally, clay is not applied to the pressurized injection by a grouting pump, because of clay's weakness and instability as a grouting material. However, it is conversely possible to reduce permeability of extensive rock mass by pouring dilute clayey water into the rock for a long time, because clay has non-hardening characteristic. Authors developed a non-pressurized clay grouting method by using the above-mentioned characteristics and applied this to the construction of underground oil storage caverns. Outline of clay grouting and results are described in this paper.

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