Reduction of Water Measures Method of the Mountains Tunnel which Applied a Grouting Technology of the Dam

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  • ダムのグラウチング技術を適用した山岳トンネルの減水対策工
  • ダム ノ グラウチング ギジュツ オ テキヨウ シタ サンガク トンネル ノ ゲンスイ タイサクコウ

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Abstract

<p>There was the Hokusatu tunnel in the road which linked Kagoshima Airport to The Hokusatu Region of Kagoshima Prefecture, and groundwater including highly-concentrated arsenic gushed out approximately 300 t/h during tunnel digging from the 100 m section of the center neighborhood. Therefore as a result of having carried out reduction of water measures by the grouting method of construction of the dam, 40 t/h or less were able to reduce water. This report sentence reports the details of the test grouting that we carried out before main construction.</p>

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