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首页> 外文会议>International conference on ground control in mining >Development and Implementation of the 'Spin to Stall' Resin Bolting System at Anglo Americans Australian Underground Coal Operations
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Development and Implementation of the 'Spin to Stall' Resin Bolting System at Anglo Americans Australian Underground Coal Operations

机译：在英美资源集团澳大利亚地下煤炭运营公司开发和实施“旋转至失速”树脂锚固系统

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Longwall mining is by far the most common method of underground coal extraction in Australia. The industry trends and expectations are placing increasing emphasis on the reliability and productivity of these operations. The longwalls are becoming wider and longer while retreat rates are continuously increasing due to significant improvements achieved in longwall equipment reliability and automation. This increased longwall productivity is placing significant emphasis on the reliability of longwall panel development. Although there have been significant improvements in the reliability of continuous miners and hydraulic drill rigs, the traditional resin encapsulated bolt installation is still the principal method used in all major coal-producing countries around the world. Anglo American realised an opportunity existed to introduce an alternative roof bolt installation technique called "spin to stall" in Australia. Spin to stall was first introduced in Anglo American Coal in South Africa where it has been successfully used for over a decade, though implementation of South African spin to stall resin in Australia has proven to be near impossible due to a significant difference in geotechnical conditions, mining method, and, subsequently, roof bolting equipment. Therefore, a new spin to stall development project was initiated between Anglo American Coal and Jennmar Australia (SPIN2STALL®). This paper summarises the journey of this project, the results, and the successful implementation of spin to stall achieved at Grasstree Mine.
机译：迄今为止，长壁开采是澳大利亚最常见的地下煤炭开采方法。行业趋势和期望越来越强调这些操作的可靠性和生产率。由于长壁设备可靠性和自动化方面的显着改善，长壁越来越宽，而后退率却不断提高。长壁生产率的提高极大地强调了长壁面板开发的可靠性。尽管连续采矿机和液压钻机的可靠性有了显着提高，但传统的树脂封装螺栓安装仍然是全世界所有主要产煤国使用的主要方法。英美资源集团意识到有机会在澳大利亚引入一种称为“旋转失速”的替代屋顶螺栓安装技术。旋转失速最初是在南非的英美资源集团煤炭公司中引入的，该方法已经成功使用了十多年，尽管由于岩土条件的巨大差异，事实证明在澳大利亚实施南非旋转失速树脂几乎是不可能的，采矿方法，以及随后的屋顶锚固设备。因此，英美资源集团煤炭与澳大利亚Jennmar之间启动了一个新的自转失速发展项目（SPIN2STALL®）。本文总结了该项目的过程，结果以及在Grasstree矿实现的自旋至失速的成功实施。

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