| 提高综放工作面端头煤层放出率的试验 |
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| 引用本文： | 黄炳香,刘长友,王美柱,刘瑞涛,刘春生.提高综放工作面端头煤层放出率的试验[J].煤炭科学技术,2010,38(3). |
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| 作者姓名： | 黄炳香 刘长友 王美柱 刘瑞涛 刘春生 |
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| 作者单位： | 1. 中国矿业大学,矿业工程学院,江苏,徐州,221116
2. 义马煤业集团有限责任公司,耿村煤矿,河南,义马,472300 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目(2007CB209400);;国家自然科学基金资助项目(50774079) |
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| 摘 要： | 为了提高综放工作面端头顶煤的放出率,进行了软厚直接顶(顶煤)条件下综放工作面端头区放煤的现场试验。实测研究了综放面端头区放煤条件下的矿压显现特征,优化了端头区放煤参数,并对放煤效果进行了实测分析。试验结果表明,软厚直接顶及顶煤具有较好的随动性和充填程度,利于端头放煤的安全高效实施。综放面端头区顶板压力很小,是工作面中部的6.54%。由于端头放煤后端头区顶板活动加剧,顶板压力增大了26.64%。综放面端头区放煤的顶板控制关键是"护"和"稳",改善端头支护系统的稳定性是端头区安全放煤的保障。根据综放面端头顶板的稳定性程度,合理确定了端头区的可放煤区域和双轮或三轮顺序不等量控制放煤工艺。
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| 关 键 词： | 综放开采 端头区 顶板控制 放煤 放出率 |
Test to Improve Top Coal Caving Rate at Face End of Fully Mechanized Top Coal Caving Mining Face |
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| HUANG Bing-xiang,LIU Chang-you,WANG Mei-zhu,LIU Rui-tao,LIU Chun-sheng.Test to Improve Top Coal Caving Rate at Face End of Fully Mechanized Top Coal Caving Mining Face[J].Coal Science and Technology,2010,38(3). |
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| Authors: | HUANG Bing-xiang LIU Chang-you WANG Mei-zhu LIU Rui-tao LIU Chun-sheng |
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| Affiliation: | 1.School of Mining Engineering/a>;China University of Mining and Technology/a>;Xuzhou 221116/a>;China/a>;2.Gengcun Mine/a>;Yima Coal Mining Group Corporation Limited/a>;Yima 472300/a>;China |
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| Abstract: | In order to improve the top coal caving rate at the face end of the fully mechanized top coal caving mining face,a site test of the top coal caving at the face end of the fully mechanized top coal caving mining face was conducted under the soft and thick direct roof(top coal) condition.The paper had an actual measurement and research on the mine strata pressure behavior features at the face end area of the fully mechanized top coal caving mining face under the condition of the top coal caving.The top coal c... |
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| Keywords: | fully mechanized top coal caving mining face end area roof control top coal caving caving rate |
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