Abstract

The influence of jointing on the stability of adjacent rock mass is analyzed using the coefficient of structural weakening and the joint spacing. The gravity–tectonic stress field of ore bodies in Gornaya Shoria, including the azimuth of the principal horizontal stresses is characterized. The laboratory tension tests of combinations of support systems as well as the small-scale extension tests of rock bolts made of different materials are discussed. The framework for a multi-factor digital model of safe and efficient support design for iron ore mines in Gornaya Shoria is based on the stability assessment of adjacent rock mass in terms of jointing and stress state.

中文翻译：

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Gornaya Shoria岩爆危险地下矿井的支撑系统设计

摘要

利用结构弱化系数和节理间距分析了节理对邻近岩体稳定性的影响。刻画了Gornaya Shoria矿体的重力构造应力场，包括主要水平应力的方位角。讨论了支撑系统组合的实验室拉伸试验以及由不同材料制成的岩栓的小规模拉伸试验。Gornaya Shoria的铁矿石矿山安全有效支持设计的多因素数字模型的框架是基于邻道岩体在节理和应力状态方面的稳定性评估。