| 南屯煤矿深部沿空巷道耦合支护技术 |
| |
| 引用本文： | 李伟,冯增强. 南屯煤矿深部沿空巷道耦合支护技术[J]. 辽宁工程技术大学学报(自然科学版), 2008, 27(5) |
| |
| 作者姓名： | 李伟 冯增强 |
| |
| 作者单位： | 北京科技大学,土木与环境工程学院,北京,100083;兖矿集团公司南屯煤矿,山东,邹城,273500;兖矿集团公司南屯煤矿,山东,邹城,273500 |
| |
| 基金项目： | 教育部跨世纪优秀人才培养计划 |
| |
| 摘 要： | 通过研究,确定了南屯煤矿九采区93|02综放工作面沿空回采巷道围岩为高应力节理化复合型(HJ型)软岩,根据巷道围岩变形力学机制及其转化对策,确定了锚网索耦合支护设计方案,即采用破底板掘进和超前支护优化围岩结构,采用直墙圆拱形巷道断面优化围岩受力状态,锚杆为直径22 mm,长2 500 mm的螺纹钢锚杆,间排距800 mm ×500 mm,配合钢筋网及复合托盘,锚索长度为6 800 mm,排距2 000 mm.工程应用表明,巷道掘进期间围岩基本没有变形,工作面回采期间,顶底板变形量累计456 mm,两帮相对移近量累计518 mm,能够实现深部松软厚煤层沿空巷道围岩稳定性的有效控制,为工作面的安全高效生产创造了条件.
|
| 关 键 词： | 深部开采 沿空巷道 耦合支护 |
Coupling support technology for gob-side entry at depth in Nantun Coal Mine |
| |
| LI Wei,FENG Zengqiang. Coupling support technology for gob-side entry at depth in Nantun Coal Mine[J]. Journal of Liaoning Technical University (Natural Science Edition), 2008, 27(5) |
| |
| Authors: | LI Wei FENG Zengqiang |
| |
| Affiliation: | LI Wei1,2,FENG Zengqiang2(1.School of Civil , Environment Engineering,Beijing University of Science , Technology,Beijing 100083,China,2.Nantun Coal Mine,Yanzhou Coal Mining Group Corporation Ltd.,Zoucheng 273500,China) |
| |
| Abstract: | The surrounding rock of the gob-side entry of 93up02 coal mining face at Nantun Coal Mine appears to be high stressed joint complex soft rock.Based on the multiple deformation mechanics mechanism and transforming countermeasure of the surrounding rock,the design of bolt-mesh-anchor coupling support is suggested in the paper.It is to say that fore-poling supporting and floor-dinting are used to reinforce surrounding rock structure,and vertical wall semi-circular arch type of roadway are used to optimize the ... |
| |
| Keywords: | deep mining gob-side entry coupling support |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
