In recent years, phenomena caused by the effects of climate change due to greenhouse gases has become more apparent, such as the increased frequency of heavy rainfall. Such trends are said likely to become more prominent in coming years. This is thought to lead to the increase of slope failure in the future. It is necessary to quantitatively evaluate future trends in the frequency of slope failure to effectively countermeasures against such environmental changes. Therefore, in this paper, future trends of slope failure along the Akita Shinkansen section have been evaluated using the predicted precipitation at the end of the 21st century by numerical experiments of a climate model based on RCP 8.5 scenario. Results show that the frequency of slope failure would increase on an average of 2.2 times the current number.

  Anchor load cells are often used to manage the tension of ground anchors on expressways, but there are many cases in which measurement is impossible due to deterioration or lightning strikes. To resolve this problem, we developed a new technology to restore anchor load cells while maintaining tension. In this paper, we present the examination results of on-site tensile force data and provide a perspective for continuous tensile force management of ground anchors.