岩石の亀裂音に関する研究

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書誌事項

タイトル別名
  • Studies on Crack Noises of Rocks
  • ガンセキ ノ キレツオン ニ カンスル ケンキュウ

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Crack noises of rock specimens which are subjected to tensile or compressive stresses wers studied.<BR>As the rock specimens, amphibole schist, slate, granite, liparite, porphyrite and tuff were used<BR>A crystal cartridge and a D. C. pre-amplifier (Fig. 1) were used for recording the noises on a taperecorder. The figures and frequencies of noise waves were investigated on an oscilloscope. To count the noise frequencies, two types of recording appliances were developed; a D. C. motor type counter and an electromagnetic counter (Fig. 3).<BR>Dimensions of the specimens, load applying method, induced crack noise frequencies, etc are summarized on the attached table. Fig. 5-12 are the crack noise count vs.' applied load. The crack noises of slate and granite were remarkable. The noise of tuff was poor.

収録刊行物

  • 日本鑛業會誌

    日本鑛業會誌 77 (882), 1066-1070, 1961

    一般社団法人 資源・素材学会

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