Monitoring on Increased Seepage at Iwaya Dam

DOI Web Site
  • SODA Hideki
    独立行政法人水資源機構 総合技術センター ダムグループ
  • TAKEUCHI Eiji
    (前)独立行政法人水資源機構 岩屋ダム管理所
  • NARITOMI Hideki
    (前)独立行政法人水資源機構 中部支社 事業課 ダム事業課
  • KISHIDA Kiyoshi
    国立大学法人京都大学 工学研究科 都市社会工学専攻

Bibliographic Information

Other Title
  • 岩屋ダムにおける浸透量増加時の対応と今後のモニタリング
  • イワヤ ダム ニ オケル シントウリョウ ゾウカジ ノ タイオウ ト コンゴ ノ モニタリング

Search this article

Description

<p>Iwaya Dam managed by Japan Water Agency (JWA) is a rockfill dam of 127.5 meters high, 40 years after construction. In Iwaya dam, seepage increased with turbidity from November to December 2013, and the increase amounted to about 100 L/min in one month. In response to this, JWA upgraded the on-site monitoring system, investigated the cause, and established a panel of experts on dam safety. After that, it stabilized for more than 1 year ago. And the seepage decreased in 2016. On the other hand, cause of the increase in seepage is still unknown. JWA decided to continue regular safety management as aiming to the recurrence of the event. This paper shows the process from the increase to the current safety management.</p>

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top