Study on development height of permeable fractured zone based on overburden failure transfer
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摘要: 采动影响下覆岩破坏及导水裂缝带高度对于水体下采煤、保水采煤等具有重要意义。分析了采动影响下覆岩破坏传递过程，并将其划分为传递发育阶段和终止阶段；通过理论分析建立了上覆岩层悬空完整和悬伸稳定力学模型，提出以极限悬空距和极限悬伸距为判据用于判断每层岩层破坏情况，得出了计算导水裂缝带高度理论新方法，并通过工程实例与实测值进行了对比分析。结果表明，基于覆岩破坏传递模型的导水裂缝带发育高度计算方法预计的导水裂缝带高度（158.8 m）与实测结果（150~170 m）吻合较好，验证了该理论方法的可行性。Abstract: It is extremely significant for coal mining under water bodies and water conservation mining to research overburden failure and the height of permeable fractured zone. The processes of overburden failure transfer were analyzed, which could be divided into transmission development stage and transmission termination stage. Through theoretical analysis, mechanical model of strata suspended integrity and overhanging stability were established. The limited suspension distance and overhang distance of each stratum were proposed to judge the damage of each layer. A new theoretical method to predict the development height of permeable fractured zone was put forward. The project example was compared with the field data. The results show that the height of permeable fractured zone by this theorical method(158.8 m) is consistent with the measured data(150-170 m), verifying its rationality.
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[1] 郭文兵,邵强,尹士献,等. 水库下采煤的安全性分析[J]. 采矿与安全工程学报,2006,23(3):324-328. GUO Wenbing,SHAO Qiang,YIN Shixian,et al. Analysis of the security of mining under a reservoir[J]. Journal of Mining and Safety Engineering,2006,23(3):324-328.
[2] 冯洁,王苏健,陈通,等. 生态脆弱矿区土层中导水裂缝带发育高度研究[J]. 煤田地质与勘探,2018,46(1):97-100. FENG Jie,WANG Sujian,CHEN Tong,et al. Height of water flowing fractured zone of soil layer in the ecologically fragile mining area[J]. Coal Geology & Exploration,2018,46(1):97-100.
[3] 赵高博,郭文兵,杨达明,等. 综放开采覆岩破坏模型及导水裂隙带高度研究[J].中国安全科学学报,2017,27(11):144-149. ZHAO Gaobo,GUO Wenbing,YANG Daming,et al. Study on overburden failure models and height of water flowing fractured zone in fully mechanized caving mining[J]. China Safety Science Journal,2017,27(11):144-149.
[4] 孙运江,左建平,李玉宝,等.邢东矿深部带压开采导水裂隙带微震监测及突水机制分析[J]. 岩土力学,2017,38(8):2335-2342. SUN Yunjiang,ZUO Jianping,LI Yubao,et al. Mi-cro-seismic monitoring on fractured zone and water inrush mechanism analysis of deep mining above aquifer in Xingdong coal mine[J]. Rock and Soil Mechanics,2017,38(8):2335-2342.
[5] 李超峰,虎维岳,王云宏,等. 煤层顶板导水裂缝带高度综合探查技术[J]. 煤田地质与勘探,2018,46(1):101-107. LI Chaofeng,HU Weiyue,WANG Yunhong,et al. Comprehensive detection technique for coal seam roof water flowing fractured zone height[J]. Coal Geology & Exploration,2018,46(1):101-107.
[6] 国家煤炭工业局. 建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规范[S]. 北京:煤炭工业出版社,2017. [7] 许延春,李俊成,刘世奇,等. 综放开采覆岩"两带"高度的计算公式及适用性分析[J]. 煤矿开采,2011,21(2):4-7. XU Yanchun,LI Juncheng,LIU Shiqi,et al. Calculation formula of "Two-zone" height of overlying strata and its adaptability analysis[J]. Coal Mining Technology,2011,21(2):4-7.
[8] 许家林,王晓振,刘文涛,等. 覆岩主关键层位置对导水裂隙带高度的影响[J].岩石力学与工程学报,2009,28(2):380-385. XU Jialin,WANG Xiaozhen,LIU Wentao,et al. Effects of primary key stratum location on height of water flowing fracture zone[J]. Chinese Journal of Rock Mechanics and Engineering,2009,28(2):380-385.
[9] 许家林,朱卫兵,王晓振. 基于关键层位置的导水裂隙带高度预计方法[J]. 煤炭学报,2012,37(5):762-769. XU Jialin,ZHU Weibing,WANG Xiaozhen. New method to predict the height of fractured water-conducting zone by location of key strata[J]. Journal of China Coal Society,2012,37(5):762-769.
[10] 王志强,李鹏飞,王磊,等. 再论采场"三带"的划分方法及工程应用[J]. 煤炭学报,2013,38(增刊2):287-294. WANG Zhiqiang,LI Pengfei,WANG Lei,et al. Method of division and engineering use of "three band" in the stope again[J]. Journal of China Coal Society,2013,38(S2):287-294.
[11] 高延法,黄万朋,刘国磊,等. 覆岩导水裂缝与岩层拉伸变形量的关系研究[J]. 采矿与安全工程学报,2012,29(3):301-306. GAO Yanfa,HUANG Wanpeng,LIU Guolei,et al. The relationship between permeable fractured zone and rock stratum tensile deformation[J]. Journal of Mining & Safety Engineering,2012,29(3):301-306.
[12] 黄万朋,高延法,王波,等. 覆岩组合结构下导水裂隙带演化规律与发育高度分析[J].采矿与安全工程学报,2017,34(2):330-335. HUANG Wanpeng,GAO Yanfa,WANG Bo,et al. Evolution rule and development height of permeable fractured zone under combined-strata structure[J]. Journal of Mining & Safety Engineering,2017,34(2):330-335.
[13] 吴侃,王悦汉,邓喀中. 采空区上覆岩层移动破坏动态力学模型的应用[J]. 中国矿业大学学报,2000,29(1):34-36. WU Kan,WANG Yuehan,DENG Kazhong. Application of dynamic mechanics model of overlying strata movement and damage above goaf[J]. Journal of China University of Mining & Technology,2000,29(1):33-36.
[14] 王悦汉,邓喀中,吴侃,等. 采动岩体动态力学模型[J]. 岩石力学与工程学报,2003,32(3):352-357. WANG Yuehan,DENG Kazhong,WU Kan,et al. On the dynamic mechanics model of mining subsidence[J]. Chinese Journal of Rock Mechanics and Engineering,2003,32(3):352-357.
[15] 马亚杰,武强,章之燕,等. 煤层开采顶板导水裂隙带高度预测研究[J]. 煤炭科学技术,2008,36(5):59-62. MA Yajie,WU Qiang,ZHANG Zhiyan,et al. Research on prediction of water conducted fissure height in roof of coal mining seam[J]. Coal Science and Technology,2008,36(5):59-62.
[16] 钱鸣高,石平五,许家林. 矿山压力与岩层控制[M]. 徐州:中国矿业大学出版社,2010. [17] 缪协兴,茅献彪,胡光伟,等. 岩石(煤)的碎胀与压实特性研究[J]. 实验力学,1997(3):64-70. MIAO Xiexing,MAO Xianbiao,HU Guangwei,et al. Research on broken expend and express and press solid characteristics of rocks and coals[J]. Journal of Experimental Mechanics,1997(3):64-70.
[18] 郭广礼,缪协兴,张振南.老采空区破裂岩体变形性质研究[J]. 科学技术与工程,2002(5):44-47. GUO Guangli,MIAO Xiexing,ZHANG Zhennan. Research on rupture rock mass deformation characteristics of longwall goafs[J]. Science Technology and Engineering,2002(5):44-47.
[19] 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. [20] 张宏伟,朱志洁,霍利杰,等.特厚煤层综放开采覆岩破坏高度[J]. 煤炭学报,2014,39(5):816-821. ZHANG Hongwei,ZHU Zhijie,HUO Lijie,et al. Overburden failure height of superhigh seam by fully mechanized caving method[J]. Journal of China Coal Society,2014,39(5):816-821.
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