節理性岩盤表層部にみられるトップリングの性質とその意義

DOI Web Site 被引用文献7件

書誌事項

タイトル別名
  • Characteristics of the Toppling at the Surface Part of Jointed Rock Slope
  • セツリセイ ガンバン ヒョウソウブ ニ ミラレル トップリング ノ セイシツ

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説明

Toppling phenomena were observed along the cut of forestry road where rhyolitic welded tuff of the Nohi rhyolitic rocks is distributed. The rock mass of the welded tuff is separated into platy segments at the site by joints that strike parallel with the slope surface and dip 80° to 90°. The joints decrease in their number and the rocks near joints change in their texture with increasing vertical distance from the slope surface. These facts show that the joints have developed by weathering action from the slope surface.<BR>The toppling phenomena are inferred to have developed through the following process. Firstly the development of joints separated the rock mass into platy segments with narrow width, and decreases the strength of segments against bending and buckling. Secondly segments began to topple when they are buckled mainly by their own weight or bended by the force exerted by adjacent segments.

収録刊行物

  • 応用地質

    応用地質 24 (1), 9-20, 1983

    一般社団法人 日本応用地質学会

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