PREDICTION OF EXISTENCE OF KEYBLOCK IN UNDERGROUND CAVERN EXCAVATION

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  • 地下空洞掘削におけるキーブロックの発生予測
  • チカ クウドウ クッサク ニ オケル キーブロック ノ ハッセイ ヨソク

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Abstract

In the ecavern excavated in hard rock, failure model is dominated by the slip slide or fall of jointed rock. In this paper, it is shown how to predict the frequency of keyblock and to evaluate supporting by joint data got from site investigation data

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