两种采用的面部垂直预处理技术的比较

IF 1.8 Q3 MINING & MINERAL PROCESSING
F. Sengani, Tawanda Zvarivadza, A. Adoko
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引用次数: 4

摘要

工作面垂直预调节是深部金矿开采中采用的一种将应力传递到开发端工作面前方的机制。虽然在金矿开采中已经实现了工作面垂直预调节,但冲击地压仍然是深部金矿开采面临的最大难题。本文研究了针对机械化金矿开发终端而开发的垂直面前预处理技术的有效性。该研究包括对某深部金矿4个工作面和5个工作面垂直预处理孔的比较。研究结果表明,5个面部垂直预处理孔比4个面部垂直预处理孔更有效。通过对工作面进行充分的压裂,改善承台附近的压裂,并迅速减少上盘压裂,验证了上述结果。利用探地雷达、钻孔潜望镜、地震监测系统和数值模拟验证了方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparison of two adopted face perpendicular preconditioning techniques
ABSTRACT Face perpendicular preconditioning is one of the mechanisms used in deep gold mines to transfer stress far ahead of the face on the development ends. Although face perpendicular pre-conditioning has been implemented in gold mines, rockbursts are still considered as the most problematic issue faced by deep gold mines. This paper investigates the effectiveness of face-perpendicular preconditioning that was developed for development ends in mechanized gold mines. The investigation comprised a comparison of four face and five face-perpendicular preconditioning holes in a deep gold mine. The results of the study indicated that five face-perpendicular preconditioning is more effective than four face-perpendicular preconditioning holes. The results were validated by adequate fracturing on the mining face, improvement of fracturing in the vicinity of the sockets and rapid decrease in the hangingwall fracturing. Ground Penetrating Radar, borehole periscope, seismic monitoring systems and numerical modelling were used to validate the effectiveness of the methods.
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来源期刊
CiteScore
2.20
自引率
9.10%
发文量
5
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