INFLOW SEDIMENT PROCESSING METHOD IN DAM STORAGE LAKE: Fid-Bau Portal

INFLOW SEDIMENT PROCESSING METHOD IN DAM STORAGE LAKE

HAYASHI SHINICHIRO / HAYASHI WASHIO / HAYASHI KANAKO / HAYASHI KOZABURO

PROBLEM TO BE SOLVED: To provide an inflow sediment processing method in a dam storage lake in order to rationally remove sediment that flowed into and accumulated in the dam storage lake.SOLUTION: A inflow sediment processing method in a dam storage lake comprises following processes: raising a peripheral wall of a floating boat with buoyance for storing sediment dug out of a lake bed depending on an increase in the stored sediment; raising the peripheral wall by connecting and assembling blocks in stages whenever an inside of the peripheral wall is filled with the sediment; raising the peripheral wall to a required height depending on a set water level and filling the inside of the peripheral wall with the sediment; flattening the sediment surface by land elevation; and constructing a lake facility on the flattened surface.SELECTED DRAWING: Figure 1

【課題】ダムの貯水湖に流入堆積した土砂の合理的排除を企図したダムの貯水湖における流入土砂の処理方法の提供を図る。【解決手段】湖底から掘出した土砂を収容するための浮力を有する浮船本体の周壁を、収容する土砂の増加に応じて嵩上げし、当該周壁の嵩上げの形成は、土砂が一杯になる毎に段階的な連結組み立てに基づき行なうように成し、設定水位に応じた所要高さに嵩上げがなされその内部に土砂が満たされた状態となった後、その表面に土盛を施して平坦化し、当該平坦化された上面に対して湖上施設を構築するようにしたダムの貯水湖における流入土砂の処理方法。【選択図】図１

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