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| 大倾角软顶软煤回采巷道支护技术 | |
| 引用本文： | 贠东风,王晨阳,苏普正,谢磐石,周颖,辛亚军,刘华云,陈利.大倾角软顶软煤回采巷道支护技术[J].煤炭科学技术,2010,38(10). |
| 作者姓名： | 贠东风 王晨阳 苏普正 谢磐石 周颖 辛亚军 刘华云 陈利 |
| 作者单位： | 1. 西安科技大学,能源学院,陕西,西安,710054;教育部西部矿井开采及灾害防治重点实验室,陕西,西安,710054 2. 西安科技大学,能源学院,陕西,西安,710054 3. 华蓥山煤业有限公司李子垭南二井,四川,华蓥,638650 |
| 摘 要： | 为解决大倾角软顶软煤回采巷道的变形与失稳问题,以李子垭矿南二井3102工作面回采巷道支护为研究对象,分析了松软破碎顶板软煤层易冒落加剧了巷道支护难度,原钻爆法破岩和支护施工工艺不合理,由此依据煤层地质条件和巷道变形破坏特点,确定"锚杆锚索+大托盘+金属网+W型钢带+喷浆"联合支护和"管棚+注浆"超前支护方案,并采用FLAC3D有限差分软件对支护方案有效性进行计算,分析显示巷道位移为22～140mm、垂向应力125～198MPa,巷道围岩应力集中得到有效控制。 |
| 关 键 词： | 大倾角 软顶软煤 回采巷道 联合支护 锚杆支护 |
Support Technology of Mining Gateway in High Inclined Seam with Soft Top Coal |
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| YUN Dong-feng,WANG Chen-yang,SU Pu-zheng,XIE Pan-shi,ZHOU Ying,XIN Ya-jun,LIU Hua-yun,CHEN Li.Support Technology of Mining Gateway in High Inclined Seam with Soft Top Coal[J].Coal Science and Technology,2010,38(10). | |
| Authors: | YUN Dong-feng WANG Chen-yang SU Pu-zheng XIE Pan-shi ZHOU Ying XIN Ya-jun LIU Hua-yun CHEN Li |
| Abstract: | In order to solve the deformation and stability lost problems of the mining gateway in a high inclined seam with soft roof and soft top coal,taking the mining gateway support of No.3102 coal mining face in South No.2 Mine Shaft of Liziya Mine as the study object,the paper had a analysis on the support difficulty occurred by the easy falling seam with soft broken roof and soft coal and on the irrational of the previous drilling and blasting for the rock breaking and the support technique.According to the sea... |
| Keywords: | high inclined angle soft top coal mining gateway combined support bolt support |
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