貯水地周辺に生じた地すべりの防止工の計画と効果

抄録

For the slopes along dam reservoir, waterlevel fluctuations according to the dam operations for floods control have some effects on the slope stability.
Especially at the first storage of reservoir, we have often found landslides occurred along the reservoirs. In this report, two cases of landslide experienced at a dam are shown on their geological features and the mechaism of slide affected by the ascending of water level . For decaying of activation of sliding, countermeasures were constructed, and then slide movement have not reacted even though at the higher water level than that of sliding occurred.