To provide a reinforcing method of the existing fill structure capable of dispensing with another purchase or transport of banking building materials such as soil and ballast, etc. for at least fill.
The reinforcing method of the existing water storage filling structure includes a water level lowering step lowering the water storage level to the lowest water level WI, an excavation step excavating a slope 2 of the existing filling 1 to the lowest water level WI, a mixing step mixing cut 10 cut out by the excavation step with cement, a reconstruction step reconstructing a mixing material 14 mixed by the mixing step on the slope 2 excavated by the excavation step, a step dredging sediment in a reservoir applying the filling structure for water storage thereto and a construction step carrying out volume reduction processing eliminating moisture from the sediment to the sediment obtained by the dredging, adding the cement to the volume-reduced sediment and constructing the sediment cement mixing material from the top of the mixing material reconstructed by the reconstruction step.
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FUJIYAMA TETSUO
MAEDA KAZUYUKI
Hidemi Matsukura
Yutaka Nagata