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| 巨厚复合顶煤大断面煤巷支护参数优化 | |
| 引用本文： | 于永江,赵宇,郝云新,林木.巨厚复合顶煤大断面煤巷支护参数优化[J].辽宁工程技术大学学报(自然科学版),2011,30(5):693-696. |
| 作者姓名： | 于永江 赵宇 郝云新 林木 |
| 作者单位： | 1. 辽宁工程技术大学,矿业学院,辽宁,阜新,123000 2. 东煤地质局,沈阳测试研究中心,辽宁,沈阳,110013 3. 内蒙古煤炭科学研究院,内蒙古,呼和浩特,010020 |
| 基金项目： | 国家自然科学基金资助项目(51174106;50804020) |
| 摘 要： | 针对在大断面、巨厚复合顶煤条件下巷道支护参数难以确定的问题,通过采用钻孔窥视法和FEPG软件数值模拟方法对不连沟煤矿的巨厚复合顶煤特大断面全煤大巷进行锚杆(索)支护参数优化,提出在巨厚复合顶煤特大断面全煤大巷中采用高强度、大刚度的长锚杆和长锚索的联合支护方法,并对其支护效果进行监测,研究结果表明:该支护系统很好地保证了复合顶煤大断面煤巷的安全,可靠性较高。 |
| 关 键 词： | 巨厚复合顶煤 大断面 离层 钻孔窥视法 FEPG 参数优化 刚度 联合支护 |
Damage mechanism and optimum support parameters for coal roadway with a large cross-section and thick combined top-coal |
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| YU Yongjiang,ZHAO Yu,HAO Yunxin,LIN Mu.Damage mechanism and optimum support parameters for coal roadway with a large cross-section and thick combined top-coal[J].Journal of Liaoning Technical University (Natural Science Edition),2011,30(5):693-696. | |
| Authors: | YU Yongjiang ZHAO Yu HAO Yunxin LIN Mu |
| Institution: | YU Yongjiang1,ZHAO Yu2,HAO Yunxin3,LIN Mu1(1.College of Mine Technology and Engineering,Liaoning Technical University,Fuxin 123000,China,2.Shenyang Test Research Center,Northeast Coalfield Geological Bureau,Shenyang 110013,3.Inner Mongolia Coal Science Research Institute,Hohhot 010020,China) |
| Abstract: | To overcome the abnormal difficulty in roadway maintenance under the conditions of large cross-section and thick combined top-coal,this study analyzes the separation process of combined top-coal layers in a large cross-section coal roadway.It concludes that the destruction forms of roadway with thick composite top-coal are mainly separating and buckling.The deformation and movement of combined top-coal occur between each layer.Without roof support,the destruction process is mainly in three stages including ... |
| Keywords: | thick combined top-coal large cross-section separation layer drillhole peep method FEPG parameter optimization stiffness combined support |
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