反射検層結果を用いた岩盤掘削性の評価について

概要

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In estimating rock quality for the excavation no study has hitherto been made on hardness and clacks of rocks. In this paper the rock quality was studied from view-points of hardness, clacks and heterogeneity of rocks by using results of the reflection logging. Namely, the effect of them was shown by N_m, avarage of multiple reflection, and H_c, coefficient heterogeneity. In this paper the above-mentioned rock quality in a granite field was compared with actual results of grab excavation. As a results of this comparison a relation was observed among above mentioned subjects. The rock quality for excavation (G) is shown by equation G=1/2{(8-n_m)+H_c}.
一般社団法人日本応用地質学会の論文
1974-10-30