Image Optimization Analysis of Roadway Loose Ring Detection Based on Geological Radar and Support Improvement
Take the underground roadway of Zhongguan iron mine in Hebei province as the engineering background.The loose ring detection,image processing optimization analysis and support improvement were carried out.First,based on the principle of radar detection,a loose ring detection scheme for underground roadway of metal mine is proposed.The radar detection image processing method is optimized.The findings were then analyzed in detail,the influence of different lithologies and different buried depth levels on the range of roadway loosening circle is discussed.The research results show that the ground-penetrating radar can effectively measure the range of loose circle in underground roadway.The distribution of loose circle in underground roadway of Zhongguan iron mine is complex and changeable.The worse the lithology of the roadway,the greater the buried depth and the wider the range of the loose circle,and vice versa.According to the range of loosening circle and the action mechanism of bolt,in the surrounding rock section with poor lithology,loosening ring thickness range of more than 2.5 m,the support scheme should be optimized by adopting longer bolt lengths and encrypting bolt spacing.
geological radarroadway surrounding rockloose ring detectionimage optimization analysissupport optimization
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