西アフリカ，サヘル地帯での簡易弾性波探査による浅層地下水調査

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タイトル別名
  • Determination of Shallow Groundwater Resources by Handy Seismic Refraction Method in the Sahel Region, West Africa.
  • ニシアフリカ サヘル チタイ デ ノ カンイ ダンセイハ タンサ ニ ヨル センソウ チカスイ チョウサ

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抄録

In the Sahel region, spread in West Africa, groundwater in the alluvial plain of wadi is very important water resources for dry-season irrigation. Determining the depth to bedrock and depth to water table by geophysical methods makes possible to decrease the costs and labours for well construction. The author carried out handy seismic refraction method by sledgehammmer striking, for explosives such as dynamites commonly used for seismic sources are hard to available in this region.<BR>Determined depths of basement and water table by seismic method are sufficiently analogous with actual depths measured in the boreholes. This handy seismic method is suitable for determining depths of basement and water table shallower than twenty meters, and applicable widely in the Sahel region for preliminary study of shallow groundwater resources.

収録刊行物

  • 応用地質

    応用地質 41 (1), 34-40, 2000

    一般社団法人 日本応用地質学会

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