| 复杂环境下急倾斜特厚煤层安全开采 |
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| 引用本文： | 来兴平, 王宁波, 胥海东, 漆涛, 曹建涛, 蒋东晖. 复杂环境下急倾斜特厚煤层安全开采[J]. 工程科学学报, 2009, 31(3): 277-280. DOI: 10.13374/j.issn1001-053x.2009.03.030 |
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| 作者姓名： | 来兴平 王宁波 胥海东 漆涛 曹建涛 蒋东晖 |
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| 作者单位： | 西安科技大学能源学院,西安,710054;教育部西部矿井开采及灾害防治重点实验室,西安,710054;神华新疆能源有限责任公司,乌鲁木齐,830027 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金 |
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| 摘 要： | 采用理论分析、数值计算等综合方法,研究了苇湖梁煤矿+579E2EB1+2急倾斜煤层(64°)高阶段(54m)综放面开采中出现的采空区顶板坍塌与气体超限的问题.现场开采试验表明,采取快速推进、控制均匀放煤、优化通风系统及主动综合防瓦斯等有效措施,遏制动力学灾害并确保安全开采.
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| 关 键 词： | 复杂环境 急倾斜特厚煤层 开采扰动区 层裂结构 动态失稳 |
| 收稿时间： | 2008-01-21 |
Safety top-coal-caving of heavy and steep coal seams under complex environment |
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| LAI Xing-ping, WANG Ning-bo, XU Hai-dong, QI Tao, CAO Jian-tao, JIANG Dong-hui. Safety top-coal-caving of heavy and steep coal seams under complex environment[J]. Chinese Journal of Engineering, 2009, 31(3): 277-280. DOI: 10.13374/j.issn1001-053x.2009.03.030 |
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| Authors: | LAI Xing-ping WANG Ning-bo XU Hai-dong QI Tao CAO Jian-tao JIANG Dong-hui |
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| Abstract: | The seam angle is 64°+ and the mining level height is 54 m at the + 579E2EB1+2 top-coal-caving working face in Weihuliang Mine in northwestern China. Theoretical analysis, numerical calculation and field test were used to study roof collapse and gas overlimit in mined-out area during mining on the working face. The results show that fast mining, control symmetrical top-coal caving in dipping and strike directions, optimizing the ventilation system, and the initiative in preventing gas are valid for safety mining. |
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| Keywords: | complex environment heavy and steep coal seam excavation disturbance zone spalling structure dynamic destabilization |
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