PRESENT SITUATION OF SEA-SAND MINING IN KYUSHU ISLAND, JAPAN AND ITS INFLUENCE ON COASTAL ENVIRONMENT
No. 23 (1992), Conference Proceedings
No. 23 (1992)

PRESENT SITUATION OF SEA-SAND MINING IN KYUSHU ISLAND, JAPAN AND ITS INFLUENCE ON COASTAL ENVIRONMENT

Conference Proceedings
https://doi.org/10.9753/icce.v23.%25p
Published 1992-01-29
M. Hashida
Department of Civil Engineering, Nippon Bunri University
N. Matsunaga
Department of Earth System Science and Technology, Kyushu University
T. Komatsu
Department of Civil Engineering, Hydraulics and Soil Mechanics, Kyushu University
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Keywords

sand mining
Kyushu Island

How to Cite

Hashida, M., Matsunaga, N., & Komatsu, T. (1992). PRESENT SITUATION OF SEA-SAND MINING IN KYUSHU ISLAND, JAPAN AND ITS INFLUENCE ON COASTAL ENVIRONMENT. Coastal Engineering Proceedings, 1(23). https://doi.org/10.9753/icce.v23.%p
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Abstract

The sea-sand mining has been carried out in the coast of western part of Japan since the early 1970's. Mined sea-sand is mainly used as fine aggregate of concrete structures. Mining a large amount of sea-sand near the coast induces the possibility of beach erosion and devastation of fishing grounds. In order to evaluate its influence on coastal environment, the present situation of sea-sand mining has been investigated in seven prefectures of Kyushu Island in Japan. The sea-sand mining in Kyushu Island is classified into two types. One is the mining in the sea areas where sea-sand reserves are limited. In these areas, the compatibility between the sea-sand mining and the protection of coastal environment will become very important in future. The other is the type that sea-sand has been supplied constantly from rivers or other sea areas. In this case, it will be the most important to keep the balance between the amount of mined sea-sand and that of supplied one.
https://doi.org/10.9753/icce.v23.%25p
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