Restoration work for a Dam at Oyama River

Restoration work for a Dam at Oyama River

御山川(Ⅱ)治山工事
Objective

Disaster Restoration

Disaster Protection

Infrastructure Improvement

Techniques Chemical Grouting
Period 09/2012~01/2013
Comment The dam's stone masonry collapse due to leakage from the aging sediment control dam, which caused freezing and thawing as well as the impact of earthquakes. Initially, there was a plan to install a concrete cutoff wall on the upstream side, but it was changed to grouting the dam to prevent leakage. We used a dam grouting technique to restore the dam.

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