THE EFFECTS OF A COUNTERMEASURE WORK AGAINST COASTAL EROSION AFTER ADDITIONAL NOURISUMENT IN IBUSUKI COAST
-
- TSUCHIYA Hiroshi
- 若築建設株式会社 技術研究所
-
- TSUDA Muneo
- 東亜建設工業株式会社 技術研究開発センター
-
- KOJIMA Kazuyuki
- 水工技研株式会社
-
- KOJIMA Haruyuki
- 九州共立大学 総合研究所
Bibliographic Information
- Other Title
-
- 指宿港海岸における再養浜後の養浜砂流出防止工の効果
- イブスキコウ カイガン ニ オケル サイヨウハマ ゴ ノ ヨウハマ サ リュウシュツ ボウシコウ ノ コウカ
Search this article
Abstract
Ibusuki coast has been the most popular spot for the sand steamed hot spring. In addition, its sandy beach has important functions in the environment and disaster prevention. However, the loss of its functions has been threatened by the recent coastal erosion. Integrated shore protection system composed of beach nourishment, groin and distorted ripple mat (DRIM) has been applied to prevent the nourished sand from being washed away. The beach nourishment was constructed in 2009 and 2011 with topographic monitoring surveys. The present study discusses the effects of the countermeasure work comprised of DRIM and groin based on the survey results from 2010 to 2015. Evaluation of the beach deformation was carried out through topographic change, deformation trend and empirical eigenfunction analysis. From the results of the evaluation, it was confirmed that the countermeasure work is effective in retaining the nourishied sand.
Journal
-
- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
-
Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 72 (2), I_829-I_834, 2016
Japan Society of Civil Engineers