| 小煤柱沿空留巷围岩控制应用研究 |
| |
| 引用本文： | 李海洋.小煤柱沿空留巷围岩控制应用研究[J].山东煤炭科技,2021,39(1):88-90. |
| |
| 作者姓名： | 李海洋 |
| |
| 作者单位： | 山西晋煤集团赵庄煤业,山西长治046605 |
| |
| 摘 要： | 为保证小煤柱沿空留巷的顺利进行,通过分析掘巷和工作面回采时顶板的应力分布特征,结合巷道实际地质条件,设计了小煤柱和沿空留巷支护方案。小煤柱的宽度为12 m时,留巷后巷道围岩稳定,顶底板最大变形量210 mm,两帮移近量270 mm。
|
| 关 键 词： | 沿空留巷 小煤柱 |
Application Research on Surrounding Rock Control of Gob Side Entry Retaining with Small Coal Pillar |
| |
| Li Haiyang.Application Research on Surrounding Rock Control of Gob Side Entry Retaining with Small Coal Pillar[J].Shandong Coal Science and Technology,2021,39(1):88-90. |
| |
| Authors: | Li Haiyang |
| |
| Affiliation: | (Zhaozhuang Coal Industry,Shanxi Jinmei Group,Shanxi Changzhi 046605) |
| |
| Abstract: | In order to ensure the smooth progress of gob side entry retaining with small coal pillar,by analyzing the stress distribution characteristics of the roof during roadway excavation and working face mining,combined with the actual geological conditions of the roadway,the support scheme of gob side entry retaining with small coal pillar was designed.When the width of the small coal pillar is 12 m,the surrounding rock of the roadway is stable after retaining roadway,the maximum deformation of the roof and floor is 210 mm,and the approach of the two sides is 270 mm. |
| |
| Keywords: | gob side entry retaining small coal pillars |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
