仰采大采高工作面煤壁片帮影响因素分析及控制措施研究 .pdfVIP

学兔兔 2013年第7期 煤 炭 工 程 doi：10．1 1799／ce201307018 仰采大采高工作面煤壁片帮影响因素分析 及控制措施研究 范 苑，孔德中，王兆会 (中国矿业大学(北京)资源与安全工程学院，北京 100083) 摘 要：针对东庞煤矿大采高工作面仰采阶段的煤壁片帮具体情况，通过理论分析、数值模 拟、室内实验、现场实测等研究手段，研究了仰采大采高工作面煤壁片帮的影响因素，提出了提 高支架初撑力、降低割煤高度、加快工作面推进速度和煤壁注浆加固等控制煤壁片帮技术措施， 并取得了良好的应用效果。论文的研究结论对于如何提高仰采大采高综采工作面的开采效率和应 用成功率具有一定的借鉴意义。 关键词：仰斜开采；大采高工作面；煤壁片帮；控制措施 中图分类号：TD823 文献标识码：A 文章编号：1671—0959(2013)07-0051-03 Analysis on Factors Affected to Coal Wall Spalling in Fully Mechanized High Cutting Upward Mining Face and Study on Control Measures FAN Yuan，KONG De—zhong，WANG Zhao—hui (School of Resources and Safety Engineering，China University of Mining and Technology(Beijing)，Beijing 100083，China) Abstract：According to the certain conditions of the coal wall spalling occurred at the upward mining stage of the fully mechanized high cutting coal mining face in Dongpang Mine，with the theoretical analysis，numerical simulation，indoor experiment，site measurements and other study means，the factors affected to the coal wall spalling the factors affected to the coal wall spalling occurred in the fully mechanized upward and high cutting coal mining face were studied．The measures to improved the initial support force of the powered support，to reduce the coal cutting height，to speed up the advancing rate of the coal mining face，to reinforce the coal wall with grouting and to control the coal wall spalling technology were provided and good application effects were obtained．The study conclusion of the paper would have certm