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首页> 外文会议>Conference on Massmin 2000 Oct 29 - Nov 2, 2000, Brisbane, Queensland >Open Stope Mining Strategies at Brunswick Mine
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Open Stope Mining Strategies at Brunswick Mine

机译：不伦瑞克矿山的露天采场开采策略

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摘要

By 1996 ground control-related problems at Brunswick Mine had raised serious concerns regarding the safe and economical extraction of large portions of the reserves. These difficulties were mainly caused by high stress levels in pillars, instabilities resulting from wide spans supported by ageing support elements, and chronic difficulties supplying rock fill from the surface quarry to the underground workings, which resulted in many large voids remaining open for long periods of time. Significant changes have been implemented at the site since 1996, amongst which were a change of mining method, the introduction of paste backfill, the establishment of stress management measures, and the introduction of shotcrete on a large-scale. This paper focuses on the regional ground conditions associated with both the previously used primary-secondary mining method and the newly implemented pyramidal pillarless technique, as well as on some of the stress management measures implemented at the mine.
机译：到1996年，不伦瑞克（Brunswick）矿山的地面控制相关问题引起了人们对安全，经济地开采大部分储量的严重关切。这些困难主要是由于支柱中的高应力水平，由老化的支撑元件支撑的大跨度造成的不稳定性以及从地面采石场向地下作业提供岩石填充物的长期困难所致，导致许多大型空隙长期处于开放状态。时间。自1996年以来，该站点已进行了重大更改，其中包括采矿方法的更改，浆糊回填的引入，应力管理措施的建立以及喷浆混凝土的大规模引入。本文着眼于与先前使用的初次至二次采矿方法和新实施的金字塔无柱技术相关的区域地面条件，以及该矿山实施的一些应力管理措施。

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