Long-tenn behavior of a large underground cavern

被引：0

作者：

Koyama, T ^{[1
]}

Suzuki, Y ^{[1
]}

Ishibashi, K ^{[1
]}

Minami, M ^{[1
]}

Okubo, S ^{[1
]}

Fukui, K ^{[1
]}

机构：

[1] Tokyo Elect Power Co Ltd, Tokyo, Japan

来源：

Contribution of Rock Mechanics to the New Century, Vols 1 and 2 | 2004年

关键词：

underground cavern; hard rock; FEM; time dependent;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

In this paper, long-term behavior of rock at a large underground cavern which was excavated in hard rock was considered through measurement data, We especially focused on the slight change of rock strain measured by multiple stage extensometers at an underground power station which has passed approximately seven years since its excavation work was finished. From the result of consideration, it was found that relatively large increase of interval strain occurred in the vicinity of the boundary between failure zone and elastic zone after the end of excavation. This paper also shows the comparison between measurements and results of numerical analysis which applies a non-liner rheological model to the time dependent rock behavior.

引用

页码：593 / 598

页数：6

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