8 0 0 0 OA 侵食海岸を襲った2011年大津波による護岸の破壊 ──茨城県北部神岡上海岸の事例──
- 著者
- 宇多 高明 酒井 和也 星上 幸良
- 出版者
- 一般社団法人 日本治山治水協会
- 雑誌
- 水利科学 (ISSN:00394858)
- 巻号頁・発行日
- vol.56, no.2, pp.15-29, 2012-06-01 (Released:2017-07-12)
- 参考文献数
- 8
2 0 0 0 OA 波の遮蔽構造物建設に伴う周辺海岸での侵食・堆積を未然に防ぐ手法に関する考察
- 著者
- 星上 幸良 小林 昭男 宇多 高明 三浦 正寛 熊田 貴之 三波 俊郎
- 出版者
- Japan Society of Civil Engineers
- 雑誌
- 海洋開発論文集 (ISSN:09127348)
- 巻号頁・発行日
- vol.19, pp.481-486, 2003 (Released:2011-06-27)
- 参考文献数
- 9
- 被引用文献数
- 1
Preventive method of beach erosion and accretion triggered by the formation of wave shadow zone associated with extension of port breakwater is investigated through the field observation, taking the Shimohara fishing port in Tateyama City in Chiba Prefecture as the example. This phenomenon is well-known in coastal engineering, but in Japan this kind of beach erosion and accretion have been repeatedly reported. In order to solve this problem, not only the research in engineering method, but also improvement of the environmental assessment system are required so as to include the prediction of topographic changes in the items of environment assessment.
1 0 0 0 OA 千葉県外房に位置する平砂浦海岸における保安林造成と海岸侵食
- 著者
- 星上 幸良 小林 昭男 宇多 高明 熊田 貴之 酒井 和也 三波 俊郎
- 出版者
- Japan Society of Civil Engineers
- 雑誌
- 海洋開発論文集 (ISSN:09127348)
- 巻号頁・発行日
- vol.19, pp.487-492, 2003 (Released:2011-06-27)
- 参考文献数
- 4
Relation between beach erosion and the development of coastal forest was investigated by comparing past aerial photographs, taking the Heisa-ura coast in Chiba Prefecture as the example. Sand dune has been well developed at this coast due to the strong wind-blown sand in winter in the past. In order to prevent the damage due to wind-blown sand, coastal forest has been extensively planted. However, excess development of coastal forest in recent years as well as the construction of earth dike along the coastal forest caused shoreline recession by the excavation of beach sand to supply the construction materials. Appropriate land management isrequired between the coastal forest area and the shore protection area in order to avoid devastation of natural sandy beach.