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综放工作面大断面切眼锚网索支护技术研究
Study on support technology with bolt-mesh-anchor for large cross section open-off cut of fully mechanized caving face
【摘要】 根据现场工程地质条件调查分析、岩石物理力学特性和超厚坚硬高瓦斯大断面综放切眼围岩力学变形机制及其转化研究 ,提出了超厚坚硬高瓦斯综放工作面巷道锚网锚索耦合支护设计方案。根据试验结果 ,证明在白芨沟矿采用锚网锚索耦合支护技术在技术上是可行的、安全上是可靠的 ,经济上是合理的
【Abstract】 Base on the analysis of the geological conditions, rock physical mechanics features and mechanics deformation mechanism of the surrounding rock of large cross section open off cut of fully mechanized caving face in ultra thick hard high gassy seam, the paper provided a design plan of a combined support with bolt mesh anchor for the gateway of the caving face. According to the result, the test showed that the combined support technology with the bolt mesh anchor used in Baijigou Mine is feasible in technology, reliable in safety and rational in economy.
【关键词】 特厚坚硬煤层;
高瓦斯矿井;
大断面切眼;
锚网支护;
锚索;
耦合支护;
【Key words】 special thick hard seam; high gassy mine; large cross section open off cut; bolt mesh support; anchor; combined support;
【Key words】 special thick hard seam; high gassy mine; large cross section open off cut; bolt mesh support; anchor; combined support;
【基金】 国家杰出青年基金资助项目 (5982 51 1 4 )
- 【文献出处】 煤炭科学技术 ,Coal Science and Technology , 编辑部邮箱 ,2002年01期
- 【分类号】TD353
- 【被引频次】29
- 【下载频次】315