| 講演要旨(和文) | | 沿岸地域は,放射性廃棄物地層処分場建設候補地の一つであり,沿岸地域の地下構造および堆積環境を知る事は,地下水流動を考える上で非常に重要である.また,処分場建設候補地として浅海域の海底が挙げられているが,浅海域は陸域・海域双方からのデータ取得が困難なデータの空白域となっていることが多く,そのような空白域を埋めるような技術の開発が望まれる.本研究では,浅海域の弾性波探査としての陸海接合反射法地震探査の予備的研究と位置づけて,P波反射法探査およびS波浅層反射法探査を沿岸陸域で実施し,沿岸地域の地下構造を明らかにした. |
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| | 講演要旨(英文) | | A coastal area is one of the proposed sites for radioactive waste disposal facilities construction, and it is very important to understand the underground structure and environment of sedimentation of a coastal area, when considering a groundwater flow. Moreover, although the seabed of the shallow sea region is listed as a proposed site for disposal site construction, however, such an area tends to be a blank region of geophysical data because of the difficulties of data acquisition both from land and marine. To fill up such a blank region, development of data acquisition technology is required. This research is regarded as preliminary research of the land-and-marine integrated seismic reflection survey of a shallow sea region. We carried out a P-wave and a S-wave-shallow seismic reflection surveys and clarified underground structure of the coastal area. |
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