PROBLEM TO BE SOLVED: To provide a jack device and a jack method, the jack device performing a two-staged action that curtails time to reach a final target height and reduces effects of a wave.SOLUTION: A jack device is of a structure that connects a first lifting cylinder 4 and a second lifting cylinder 5 to a spud 3 in a way that allows releasing, the first lifting cylinder providing a long stroke and lifting a skeleton 2 relative to the spud 3 when connected with the spud 3, and the second lifting cylinder providing a short stroke and lifting the skeleton 2 relative to the spud 3 when connected with the spud 3. The long stroke of the first lifting cylinder 4 is of a magnitude sufficient to lift the skeleton 2 instantly to a prescribed height that is almost unaffected by a wave, when the skeleton is installed on a wavy water.SELECTED DRAWING: Figure 1

    【課題】最終の目標高さとなるまでの時間の短縮化を図り、波浪の影響を小さくする2段アクションのジャッキ装置及び昇降方法を提供する。【解決手段】スパッド3に、スパッド3との結合状態でスパッド3に対し躯体2を上昇させる長ストロークの第1の昇降シリンダ4と、スパッド3との結合状態でスパッド3に対し躯体2を上昇させる短ストロークの第2の昇降シリンダ5とを結合解除可能に結合する構造である。第1の昇降シリンダ4の長ストロークは、水上設置状態において、波浪時に躯体2を波浪の影響をほとんど受けない設定高さまで一気に移動させる大きさである。【選択図】 図1


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    Title :

    JACK DEVICE AND JACK METHOD


    Additional title:

    ジャッキ装置及びジャッキ方法


    Contributors:

    Publication date :

    2017-03-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E02B HYDRAULIC ENGINEERING , Wasserbau / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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