Study on the effect of tunnel face stabilization using the distinct element method

被引：0
|
作者：
Okabe, T [1 ]
Haba, T [1 ]
Mitarashi, Y [1 ]
Tezuka, H [1 ]
Jiang, Y [1 ]
机构：
[1] KFC Ltd, Tokyo, Japan
来源：
Contribution of Rock Mechanics to the New Century, Vols 1 and 2 | 2004年
关键词：
distinct element method; granular media; tri-axial test; long face bolting; tunneling;
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
This study aims to investigate the effect of face stabilization using a three-dimensional distinct element program for granular media. First, tri-axial compression tests were simulated to study the correlations between the properties analytically determined, including the contact stiffness and the bond strength of particles forming ground, and the properties actually obtained through tests. Furthermore, collapses at tunnel faces were simulated to study the mechanism of collapses that might occur around the face. The authors compared different face-stabilizing methods to verify the effect of the long face bolting. In addition, this paper discusses how face behavior varies depending on the spacing of long face bolts.
引用
收藏
页码：1301 / 1304
页数：4
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