| 准东露天煤矿边坡煤体松动范围探测与确定 |
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| 引用本文： | 郭秉超,王宁波,漆涛,来兴平.准东露天煤矿边坡煤体松动范围探测与确定[J].煤炭科学技术,2010,38(3). |
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| 作者姓名： | 郭秉超 王宁波 漆涛 来兴平 |
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| 作者单位： | 1. 神华新疆能源有限责任公司,新疆,乌鲁木齐,830027
2. 西安科技大学,能源学院,陕西,西安,710054;教育部西部矿井开采及灾害防治重点实验室,陕西,西安,710054 |
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| 基金项目： | 国家自然科学基金资助项目(10772144);;教育部西部矿井开采与灾害防治省部共建重点实验室资助项目(09JS018) |
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| 摘 要： | 准东露天矿边坡台阶的煤体在开挖扰动及风化与极端气候条件作用下,其结构空间变异性显著,煤层自然发火倾向严重。采用数字式岩体松动范围测试与光学钻孔窥视系统,对采动影响下的煤体松动与破裂范围进行探测,比较分析结果表明:随台阶水平加高,同一水平内煤体松动与风化程度差异大,松动与破坏范围最小值约0.4 m,最大1.8~2.0 m;不同水平煤体风化与松动呈现明显变异性,为优化开采设计和煤自燃防治提供定量依据。
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| 关 键 词： | 露天煤矿 采动影响 煤体破碎特征 数字化探测 定量确定 |
Detection and Determination of Seam Releasing Zone in Slope of Zhundong Surface Mine |
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| GUO Bing-chao,WANG Ning-bo,QI Tao,LAI Xing-ping.Detection and Determination of Seam Releasing Zone in Slope of Zhundong Surface Mine[J].Coal Science and Technology,2010,38(3). |
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| Authors: | GUO Bing-chao WANG Ning-bo QI Tao LAI Xing-ping |
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| Affiliation: | 1.Shenhua Xinjiang Energy Corporation Limited/a>;Urumqi 830027/a>;China/a>;2.School of Energy/a>;Xi'an University of Science and Technology/a>;Xi'an 710054/a>;3.Ministry of Education' Key Lab of Mining and Disaster Prevention in Western Mine/a>;China |
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| Abstract: | Under the mining and excavation interferences,weathering and ultra climate conditions,the variability of the structure space in the bench seam of the slope of Zhundong Surface Mine was obvious and the spontaneous combustion tendency of the seam was serious.The digital rock released scope measurement and optical borehole survey system were applied to survey the seam released and broken scope under the mining influences.The comparison analysis results showed that with the bench level increased,the releasing a... |
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| Keywords: | surface mine mining influences broken features of seam digitalized detection quantitative determination |
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