Design considerations for pillar systems in deep mines

被引：1
|
作者：
Wagner H. [1 ]
Ladinig T. [1 ]
Blaha H. [1 ]
机构：
[1] Montanuniversität Leoben, Lehrstuhl für Bergbaukunde, Bergtechnik und Bergwirtschaft, Erzherzog-Johann-Straße 3, Leoben
来源：
Geomechanik und Tunnelbau | 2016年 / 9卷 / 05期
关键词：
deep mines; mine design; pillar load; pillar stability; pillar system; Rock mechanics - Felsmechanik; Structural analysis - Statik;
D O I：
10.1002/geot.201600045
中图分类号：
学科分类号：
摘要：
Pillar systems in mines are statically indeterminate systems. The paper presents the results of numerical investigations to evaluate the effects of panel dimensions on pillar loads. It is shown that pillar load in deep mines is strongly influenced by the lateral and vertical extent of extraction panels. The commonly applied tributary area concept does not account for these effects and is an oversimplification that has to be applied with caution. The effects of local pillar failures on stability of pillar workings are examined using simple models. It is shown that limiting panel dimensions by substantial barrier pillars can reduce the danger of regional pillar collapses and enhance overall mine stability. © 2016 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin
引用
收藏
页码：524 / 528
页数：4
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