特厚煤层综放开采支架工作阻力的确定
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摘要
采用理论分析的方法对特厚煤层综放开采顶板岩层所成结构及支架工作阻力进行了研究。根据特厚煤层综放开采顶板岩层形成的"悬臂梁-铰接岩梁"结构,给出了直接顶、基本顶的新概念及判据;得出了特厚煤层综放开采支架工作阻力的解析计算式,并进行了实例验证。最后对所选架型现场的动态承载特征及其适应性进行了分析。结果表明:依据支架工作阻力解析式计算结果所选架型可靠性高、支架运行合理,利用率高,对工作面顶板条件适应性较好。
Based on the theoretical analysis,the roof structure and support loading of top coal caving in extra thick coal seam was studied.According to the roof structure of top coal caving in extra thick coal seam is "cantilever beam-articulated rock beam",the new concept and criterion of immediate roof and main roof were given,the analytic expression of support working resistance with top coal caving in extra thick coal seam was concluded and verified by examples,and dynamic loading characteristics and adaptability of selected support were analyzed.The results show that the selected support has high reliability,running reasonability,high utilization rate and better adaptability.
Based on the theoretical analysis,the roof structure and support loading of top coal caving in extra thick coal seam was studied.According to the roof structure of top coal caving in extra thick coal seam is "cantilever beam-articulated rock beam",the new concept and criterion of immediate roof and main roof were given,the analytic expression of support working resistance with top coal caving in extra thick coal seam was concluded and verified by examples,and dynamic loading characteristics and adaptability of selected support were analyzed.The results show that the selected support has high reliability,running reasonability,high utilization rate and better adaptability.
引文
[1]闫少宏,尹希文.大采高综放开采几个理论问题的研究[J].煤炭学报,2008,33(5):481-484.Yan Shaohong,Yin Xiwen.Discussing about the main theoreticalproblems of long wall with top coal caving[J].Journal of China CoalSociety,2008,33(5):481-484.
[2]闫少宏.大采高综放开采煤壁片帮冒顶机理与控制途径研究[J].煤矿开采,2008,13(4):5-8.Yan Shaohong.Research on side and roof falling mechanism andcontrol approaches in caving mining with large mining height[J].Coal Mining Technology,2008,13(4):5-8.
[3]王国法,刘俊峰,任怀伟.大采高放顶煤液压支架围岩耦合三维动态优化设计[J].煤炭学报,2011,36(1):145-151.Wang Guofa,Liu Junfeng,Ren Huaiwei.Design and optimization ofhigh seam caving coal hydraulic support based on model of supportand wall rock coupling[J].Journal of China Coal Society,2011,36(1):145-151.
[4]吴永平.特厚复杂煤层综放开采技术研究[J].煤矿开采,2008,13(1):18-21.Wu Yongping.Research on full mechanized caving mining technolo-gy in extremely thick and complicated coal seam[J].Coal MiningTechnology,2008,13(1):18-21.
[5]孟庆坤.涡北矿大采高综放开采及其液压支架选型[J].煤炭科学技术,2007,35(8):53-54.Meng Qingkun.Fully mechanized high cutting height and cavingmining technology and hydraulic powered support selection in WobeiMine[J].Coal Science and Technology,2007,35(8):53-54.
[6]闫少宏.特厚煤层大采高综放开采支架外载的理论研究[J].煤炭学报,2009,34(5):590-593.Yan Shaohong.Theory study on the load on support of long wall withtop coal caving with great mining height in extra thick coal seam[J].Journal of China Coal Society,2009,34(5):590-593.
[7]刘杰.特厚煤层综放工作面围岩运动的微地震监测[J].矿业安全与环保,2008,35(1):44-46.Liu Jie.Movement of roof strata in extra-thick coal seams in top-coalcaving mining based on a high precision micro-seismic monitoringsystem[J].Mining Safety&Environmental Protection,2008,35(1):44-46.
[8]杨志国,于润沧,郭然,等.基于微震监测技术的矿山高应力区采动研究[J].岩土力学与工程学报,2009,28(2):3632-3637.Yang Zhiguo,Yu Runcang,Guo Ran,et al.Mining engineering rockburst high-stress area micro seismic monitoring time-spatial distribu-tion[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(2):3632-3637.
[9]夏永学,潘俊锋,王元杰,等.基于高精度微震监测的煤岩破裂与应力分布特征研究[J].煤炭学报,2010,36(2):239-243.Xia Yongxue,Pan Junfeng,Wang Yuanjie,et al.Study of rule of sur-rounding rock failure and stress distribution based on high-precisionmicro-seismic monitoring[J].Journal of China Coal Society,2011,36(2):239-243.
[10]夏永学,康立军,齐庆新,等.基于微震监测的5个指标及其在冲击地压预测中的应用[J].煤炭学报,2010,35(12):2011-2015.Xia Yongxue,Kang Lijun,Qi Qingxin,et al.Five indexes of micro-seismic and their application in rock burst forecastion[J].Journalof China Coal Society,2010,35(12):2011-2015.
[11]孔令海,姜福兴,刘杰,等.基于高精度微震监测的特厚煤层综放面支架围岩关系[J].岩土工程学报,2010,32(3):401-406.Kong Linghai,Jiang Fuxing,Liu Jie,et al.Relationship betweensupport and strata in extra-thick coal seam fully-mechanized sublev-el caving mining based on high precision micro seismic monitoringtechnology[J].Chinese Journal of Geotechnical Engineering,2010,32(3):401-406.
[12]康天合,柴肇云,李义宝.底层大采高综放全厚开采20 m特厚中硬煤层的物理模拟研究[J].岩石力学与工程学报,2007,26(5):1065-1072.Kang Tianhe,Chai Zhaoyun,Li Yibao.Study on physical simulationof full-seam mining for a 20 m very thick and medium hard seam bybub-level caving mining with high bottom cutting height[J].Chi-nese Journal of Rock Mechanics and Engineering,2007,26(5):1065-1072.
[13]祝凌甫,闫少宏.大采高综放开采顶煤运移规律的数值模拟研究[J].煤矿开采,2011,16(1):11-40.Zhu Lingfu,Yan Shaohong.Numerical simulation of top-coal move-ment rule in fully-mechanized caving mining with large miningheight[J].Coal Mining,2011,16(1):11-40.
[14]刘全明.大采高综放工作面长度的空间效应初探[J].煤矿开采,2010,15(3):27-29.Liu Quanming.Research on space effect of face length of full mech-anized caving mining with large mining height[J].Coal MiningTechnology,2010,15(3):27-29.
[15]鲍里索夫A A.矿山压力原理与计算[M].王庆康,译.北京:煤炭工业出版社,1986.
[2]闫少宏.大采高综放开采煤壁片帮冒顶机理与控制途径研究[J].煤矿开采,2008,13(4):5-8.Yan Shaohong.Research on side and roof falling mechanism andcontrol approaches in caving mining with large mining height[J].Coal Mining Technology,2008,13(4):5-8.
[3]王国法,刘俊峰,任怀伟.大采高放顶煤液压支架围岩耦合三维动态优化设计[J].煤炭学报,2011,36(1):145-151.Wang Guofa,Liu Junfeng,Ren Huaiwei.Design and optimization ofhigh seam caving coal hydraulic support based on model of supportand wall rock coupling[J].Journal of China Coal Society,2011,36(1):145-151.
[4]吴永平.特厚复杂煤层综放开采技术研究[J].煤矿开采,2008,13(1):18-21.Wu Yongping.Research on full mechanized caving mining technolo-gy in extremely thick and complicated coal seam[J].Coal MiningTechnology,2008,13(1):18-21.
[5]孟庆坤.涡北矿大采高综放开采及其液压支架选型[J].煤炭科学技术,2007,35(8):53-54.Meng Qingkun.Fully mechanized high cutting height and cavingmining technology and hydraulic powered support selection in WobeiMine[J].Coal Science and Technology,2007,35(8):53-54.
[6]闫少宏.特厚煤层大采高综放开采支架外载的理论研究[J].煤炭学报,2009,34(5):590-593.Yan Shaohong.Theory study on the load on support of long wall withtop coal caving with great mining height in extra thick coal seam[J].Journal of China Coal Society,2009,34(5):590-593.
[7]刘杰.特厚煤层综放工作面围岩运动的微地震监测[J].矿业安全与环保,2008,35(1):44-46.Liu Jie.Movement of roof strata in extra-thick coal seams in top-coalcaving mining based on a high precision micro-seismic monitoringsystem[J].Mining Safety&Environmental Protection,2008,35(1):44-46.
[8]杨志国,于润沧,郭然,等.基于微震监测技术的矿山高应力区采动研究[J].岩土力学与工程学报,2009,28(2):3632-3637.Yang Zhiguo,Yu Runcang,Guo Ran,et al.Mining engineering rockburst high-stress area micro seismic monitoring time-spatial distribu-tion[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(2):3632-3637.
[9]夏永学,潘俊锋,王元杰,等.基于高精度微震监测的煤岩破裂与应力分布特征研究[J].煤炭学报,2010,36(2):239-243.Xia Yongxue,Pan Junfeng,Wang Yuanjie,et al.Study of rule of sur-rounding rock failure and stress distribution based on high-precisionmicro-seismic monitoring[J].Journal of China Coal Society,2011,36(2):239-243.
[10]夏永学,康立军,齐庆新,等.基于微震监测的5个指标及其在冲击地压预测中的应用[J].煤炭学报,2010,35(12):2011-2015.Xia Yongxue,Kang Lijun,Qi Qingxin,et al.Five indexes of micro-seismic and their application in rock burst forecastion[J].Journalof China Coal Society,2010,35(12):2011-2015.
[11]孔令海,姜福兴,刘杰,等.基于高精度微震监测的特厚煤层综放面支架围岩关系[J].岩土工程学报,2010,32(3):401-406.Kong Linghai,Jiang Fuxing,Liu Jie,et al.Relationship betweensupport and strata in extra-thick coal seam fully-mechanized sublev-el caving mining based on high precision micro seismic monitoringtechnology[J].Chinese Journal of Geotechnical Engineering,2010,32(3):401-406.
[12]康天合,柴肇云,李义宝.底层大采高综放全厚开采20 m特厚中硬煤层的物理模拟研究[J].岩石力学与工程学报,2007,26(5):1065-1072.Kang Tianhe,Chai Zhaoyun,Li Yibao.Study on physical simulationof full-seam mining for a 20 m very thick and medium hard seam bybub-level caving mining with high bottom cutting height[J].Chi-nese Journal of Rock Mechanics and Engineering,2007,26(5):1065-1072.
[13]祝凌甫,闫少宏.大采高综放开采顶煤运移规律的数值模拟研究[J].煤矿开采,2011,16(1):11-40.Zhu Lingfu,Yan Shaohong.Numerical simulation of top-coal move-ment rule in fully-mechanized caving mining with large miningheight[J].Coal Mining,2011,16(1):11-40.
[14]刘全明.大采高综放工作面长度的空间效应初探[J].煤矿开采,2010,15(3):27-29.Liu Quanming.Research on space effect of face length of full mech-anized caving mining with large mining height[J].Coal MiningTechnology,2010,15(3):27-29.
[15]鲍里索夫A A.矿山压力原理与计算[M].王庆康,译.北京:煤炭工业出版社,1986.
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