Among the dams, the arch dam has a structure in which the water pressure of the reservoir is transmitted to the foundation of bedrock on the riverbed and both banks through the dam body, and the dam body is supported by the bedrock.
As a measure to ensure the stability of the bedrock that supports the arch-type concrete dam, bedrock PS anchors (* 1) are inserted into the bedrock and tightened to reinforce it, thereby integrating the foundation bedrock.
* 1 PS anchor (Prestressed anchor)
A structure that suppresses and reinforces external forces such as earthquakes by applying a compressive force to structures.
einforcing the bedrock that supports the arch-type concrete dam with PS anchors
Image of bedrock reinforcement after installing multiple PS anchors. (Plan)