掲載雑誌(和):
岩盤力学に関するシンポジウム講演論文集
Vol:
25巻
年:
1993年
頁:
271-275頁
著者(和):
稲崎 富士, 千田 敬二
タイトル(和):
坑内HSP法によるトンネル切羽前方弱層評価
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抄録(和):
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キーワード(和):
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掲載雑誌(英):
PROCEEDINGS OF THE SYMPOSIUM ON ROCK MECHANICS
著者(英):
Tomio INAZAKI, Keiji CHIDA
タイトル(英):
PREDICTION AHEAD OF THE TUNNEL FACE USING HSP METHOD
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抄録(英):
A new method we named Horizontal Seismic Profiling (HSP) was proposed and applied successfully for the prediction ahead of the tunnel face. The idea of the HSP originates from that of Vertical Seismic Profiling (VSP) which is one of the borehole seismic methods widely made use of in hydrocarbon exploration, and which has begun also to be applied into geotechnical prospecting. The difference of these two methods is in only that seismic measurements can be carried out in the horizontal tunnels or in the vertical boreholes. HSP provides the seismic information beyond the tunnel face but also along the tunnel wall, so it is substitutable for the conventional in-tunnel seismic refraction survey. The performance of HSP was examined at a tunnel under excavation in the Kanto Mountains. The results of a field experiment coincided with outcrops actually exposed by excavations and have proved the usefulness of the present method for predicting weak zones and rock mass quality change ahead the tunnel face.
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キーワード(英):
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記事区分:
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区分
委員会論文集