| 特厚煤层综放工作面大断面切眼支护技术 |
| |
| 引用本文： | 黄庆国,高峰,张磊,赵军.特厚煤层综放工作面大断面切眼支护技术[J].煤炭科学技术,2011,39(5):6-10. |
| |
| 作者姓名： | 黄庆国 高峰 张磊 赵军 |
| |
| 作者单位： | 1. 山西大同大学煤炭工程学院,山西,大同,037003
2. 大同煤矿集团有限责任公司技术中心,山西,大同,037003 |
| |
| 摘 要： | 为了解决塔山煤矿综放工作面跨度10 m切眼的支护难题,采用理论分析、数值计算方法确定了大跨度切眼的支护形式为高强度锚杆、组合锚索、W钢带、金属网、混凝土联合支护,以形成群锚封闭效应,维护切眼巷道围岩的稳定性和安全性。试验中锚索锚固力达140~160 kN,锚固区内顶板最大离层值7 mm,顶底板移近量最大值38 mm,试验结果表明,设计提出的锚杆-组合锚索-混凝土支护提高了支护结构的整体承载力,有效控制了切眼巷道围岩的变形,保证了大断面切眼的安全使用。
|
| 关 键 词： | 特厚煤层 综放工作面 大断面切眼 群锚支护 |
Support Technology of Large Cross Section Open-off Cut for Fully Mechanized Top Coal Caving Mining Face in Ultra Thick Seam |
| |
| HUANG Qing-guo,GAO Feng,ZHANG Lei,ZHAO Jun.Support Technology of Large Cross Section Open-off Cut for Fully Mechanized Top Coal Caving Mining Face in Ultra Thick Seam[J].Coal Science and Technology,2011,39(5):6-10. |
| |
| Authors: | HUANG Qing-guo GAO Feng ZHANG Lei ZHAO Jun |
| |
| Affiliation: | HUANG Qing-guo1,GAO Feng1,ZHANG Lei1,ZHAO Jun2(1.Coal School,Shanxi Datong University,Datong 037003,China,2.Technology Center,Datong Coal Mine Group Corporation Ltd.,China) |
| |
| Abstract: | In order to solve the support difficulty of the open-off cut with a span of 10 m for the fully mechanized top coal caving mining face in Tashan Mine,the theoretical analysis and the numerical calculation method was applied to set up the high strength bolt,the built-up anchor,the W steel band,the steel mesh and the concrete combined support as the large span open-off cut support mode in order to form a group bolt closed effect and to keep the surrounding rock stability of the open-off cut and the safety.Duri... |
| |
| Keywords: | ultra thick seam fully mechanized top coal caving mining face large cross section open-off cut bolt group support |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
