中兴矿近距离煤层上覆岩层移动规律研究
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摘要
应用新型多点位移计,以中兴矿3211工作面为现场,监测了近距离煤层顶板近20m范围内覆岩移动规律.通过现场监测获得了大量覆岩移动数据和同孔不同深度覆岩相对沉降变化量,以及同一深度不同孔岩层的相对沉降量.通过对监测数据的分析,得到了中兴矿周期性跨落步距.综合运用组合岩梁理论和关键层理论等对顶板岩层"三带"进行了划分,获得中兴矿的跨落高度大约为采高的2-4倍,这为中兴矿近距离条件下巷道布置及支护技术提供了依据.
With the increasing depth of coal mining,it is of great significance to study the movement rules of deep crack overburden strata.In this paper,new multi-point displacement equipment has been applied to 3211 working face in Zhongxing Coal Mine.And the strata movement law within the 20 meters around the roof has been obtained in detail.A large number of strata movement data through in-situ monitoring has been obtained,such as relative subsidence displacement of different position in the same hole and different hole in the same depth,respectively.Through the analysis of monitoring data,periodic falling span for Zhongxing Coal Mine has been obtained.Based on the combination rock beam theory and key strata theory,the "three zones" has been divided for Zhongxing Coal Mine.And it indicates that the height of falling strata is approximately 2～4 times than the thickness of coal stratum.The research can help to optimize the tunnel layout and support technology for close coal seam.
With the increasing depth of coal mining,it is of great significance to study the movement rules of deep crack overburden strata.In this paper,new multi-point displacement equipment has been applied to 3211 working face in Zhongxing Coal Mine.And the strata movement law within the 20 meters around the roof has been obtained in detail.A large number of strata movement data through in-situ monitoring has been obtained,such as relative subsidence displacement of different position in the same hole and different hole in the same depth,respectively.Through the analysis of monitoring data,periodic falling span for Zhongxing Coal Mine has been obtained.Based on the combination rock beam theory and key strata theory,the "three zones" has been divided for Zhongxing Coal Mine.And it indicates that the height of falling strata is approximately 2～4 times than the thickness of coal stratum.The research can help to optimize the tunnel layout and support technology for close coal seam.
引文
[1]周宏伟,谢和平,左建平.深部高地应力下岩石力学行为研究进展[J].力学进展,2005,35(1):91-99.ZHOU Hongwei,XIE Heping,ZUO Jianping.Developments in researches on mechanical behaviors of rocks under the confining of high ground pressure in the depths[J].Advances in Mechanics,2005,35(1):91-99.
[2]何满潮.深部的概念体系及工程评价指标[J].岩石力学与工程学报,2005,24(16):2854-2858.HE Manchao.Conception system and evaluation indexes for deep engineering[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(16):2854-2858.
[3]何国清,杨伦,凌赓娣,等.矿山开采沉陷学[M].徐州:中国矿业大学出版社,1991.HE Guoqing,YANG Lun,LING Gengdi,et al.Mining subsidence engineering[M].Xuzhou:Press of China University of Mining&and Technology,1991.
[4]纪万斌.塌陷与灾害[M].北京:地震出版社,1997.JI Wanbin.Subsidence and disaster[M].Beijing:Earthquake Press,1997.
[5]何万龙.山区开采沉陷与采动损害[M].北京:中国科学技术出版社,2003.HE Wanglong.Mining Subsidence and mining damage in mountainous area[M].Beijing:University of Sscience and Ttechnology of China Press,2003.
[6]杨伦,温吉洋,于世全.极不充分采动条件下地表下沉规律及计算方法研究[J].中国地质灾害与防治学报,2005,16(1):81-83.YANG Lun,WEN Jiyang,YU Shiquan.The law of subsidence and calculation method in the case of utmost insufficient extraction[J].The Chinese Journal of Geological Hazard and Control,2005,16(1):81-83.
[7]Vogel M,Andrast H P.Alp transit-safety in construction as a challenge,health and safety aspects in very deep tunnel construction[J].Tunneling And Under Ground Space Technology,2000,15(4):481-484.
[8]郭广礼,王悦汉,马占国.煤矿开采沉陷有效控制的新途径[J].中国矿业大学学报,2004,33(2):150-153.GUO Guangli,WANG Yuehan,MA Zhanguo.A new method for ground subsidence control in coal mining[J].Journal of China University of Mining and Technology,2004,33(2):150-153.
[9]姜晨光,贺勇,梁安波,等.矿区地表沉陷规律的新认识[J].岩石力学与工程学报,2003,22(1):162-165.JIANG Chenguang,HE Yong,LIANG Anbo,et al.New knowledge on law of ground sinking in mining area[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(1):162-165.
[10]Diering D H.Ultra-deep level mining-future requirements[J].Journal of The South African Institute of Mining And Metallurgy1997,97(6):249-255
[11]何满朝.软岩工程力学的理论与实践[C]//何满朝.中国煤矿软岩巷道支护理论与实践.北京:中国矿业大学出版社,1996.HE Manchao.Soft rock engineering mechanics theory and practice[C]//HE Manchao.Soft rock tunnel support theory and practice for China coal mines.Beijing:China University of Mining and Technology Press,1996.
[12]宋振骐.实用矿山压力[M].徐州:中国矿业大学出版社,1988.SONG Zhenqi.Practical ground pressure control[M].Xuzhou:China University of Mining and Technology,1988.
[13]钱鸣高,刘听成.矿山压力及其控制[M].北京:煤炭工业出版社,1984.QIAN Minggao,LIU Tingcheng.Ground pressure and strata control[M].Beijing:Coal Industry Press,1984.
[14]梁运培,文光才.顶板岩层“三带”划分的综合分析法[J].煤炭科学技术,2000,28(5):39-42.LIANG Yunpei,WEN Guangcai.Comprehensive analysis method of"three zone classification"on mine roof strata[J].Coal Science and Technology,2000,28(5):39-42.
[2]何满潮.深部的概念体系及工程评价指标[J].岩石力学与工程学报,2005,24(16):2854-2858.HE Manchao.Conception system and evaluation indexes for deep engineering[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(16):2854-2858.
[3]何国清,杨伦,凌赓娣,等.矿山开采沉陷学[M].徐州:中国矿业大学出版社,1991.HE Guoqing,YANG Lun,LING Gengdi,et al.Mining subsidence engineering[M].Xuzhou:Press of China University of Mining&and Technology,1991.
[4]纪万斌.塌陷与灾害[M].北京:地震出版社,1997.JI Wanbin.Subsidence and disaster[M].Beijing:Earthquake Press,1997.
[5]何万龙.山区开采沉陷与采动损害[M].北京:中国科学技术出版社,2003.HE Wanglong.Mining Subsidence and mining damage in mountainous area[M].Beijing:University of Sscience and Ttechnology of China Press,2003.
[6]杨伦,温吉洋,于世全.极不充分采动条件下地表下沉规律及计算方法研究[J].中国地质灾害与防治学报,2005,16(1):81-83.YANG Lun,WEN Jiyang,YU Shiquan.The law of subsidence and calculation method in the case of utmost insufficient extraction[J].The Chinese Journal of Geological Hazard and Control,2005,16(1):81-83.
[7]Vogel M,Andrast H P.Alp transit-safety in construction as a challenge,health and safety aspects in very deep tunnel construction[J].Tunneling And Under Ground Space Technology,2000,15(4):481-484.
[8]郭广礼,王悦汉,马占国.煤矿开采沉陷有效控制的新途径[J].中国矿业大学学报,2004,33(2):150-153.GUO Guangli,WANG Yuehan,MA Zhanguo.A new method for ground subsidence control in coal mining[J].Journal of China University of Mining and Technology,2004,33(2):150-153.
[9]姜晨光,贺勇,梁安波,等.矿区地表沉陷规律的新认识[J].岩石力学与工程学报,2003,22(1):162-165.JIANG Chenguang,HE Yong,LIANG Anbo,et al.New knowledge on law of ground sinking in mining area[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(1):162-165.
[10]Diering D H.Ultra-deep level mining-future requirements[J].Journal of The South African Institute of Mining And Metallurgy1997,97(6):249-255
[11]何满朝.软岩工程力学的理论与实践[C]//何满朝.中国煤矿软岩巷道支护理论与实践.北京:中国矿业大学出版社,1996.HE Manchao.Soft rock engineering mechanics theory and practice[C]//HE Manchao.Soft rock tunnel support theory and practice for China coal mines.Beijing:China University of Mining and Technology Press,1996.
[12]宋振骐.实用矿山压力[M].徐州:中国矿业大学出版社,1988.SONG Zhenqi.Practical ground pressure control[M].Xuzhou:China University of Mining and Technology,1988.
[13]钱鸣高,刘听成.矿山压力及其控制[M].北京:煤炭工业出版社,1984.QIAN Minggao,LIU Tingcheng.Ground pressure and strata control[M].Beijing:Coal Industry Press,1984.
[14]梁运培,文光才.顶板岩层“三带”划分的综合分析法[J].煤炭科学技术,2000,28(5):39-42.LIANG Yunpei,WEN Guangcai.Comprehensive analysis method of"three zone classification"on mine roof strata[J].Coal Science and Technology,2000,28(5):39-42.
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