赵丹;王明玉;贾进章;高鑫浩;

• 1:辽宁工程技术大学安全科学与工程学院
• 2:矿山热动力灾害与防治教育部重点实验室
• 3:煤科集团沈阳研究院有限公司
• 4:煤矿安全技术国家重点实验室

摘要(Abstract)：

为减少高瓦斯煤层的瓦斯灾害,提高高位钻孔瓦斯抽采效率,通过分析计算出马堡煤矿15#煤层上覆岩层移动"三带"高度,即:马堡煤矿15203工作面冒落带高度为10.06～14.46 m,裂隙带高度为38.75～49.95 m.再利用COMSOL数值模拟软件对高位钻孔的仰角、方位角、钻孔长度等因素进行模拟分析,并将确定的高位钻孔最佳布置参数在15203工作面进行工业试验.结果表明:数值模拟高位钻孔最佳布置参数为钻孔倾角宜控制在9°～12°,方位角以30°～45°为宜,钻孔长度为150 m;现场试验高位钻孔最佳布置参数为倾角在8°～11°,夹角在30°～42°,钻孔长度在145～155m,实测数据与模拟结果基本保持一致,为其他低渗透高瓦斯煤层的高位钻孔优化布设提供了参考价值.

关键词(KeyWords)： 高位钻孔;上覆岩层移动;COMSOL数值模拟;优化布置;瓦斯抽采治理

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（51204088）;; 辽宁省教育厅一般项目（551610001180）

作者(Authors): 赵丹;王明玉;贾进章;高鑫浩;

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