XU Feiya，GUO Wenbing，WANG Chen. Research on surface subsidence law in high-intensity mining of shallow buried with thick coal seam[J]. Coal Science and Technology，2023，51（5）：11−20
. DOI: 10.13199/j.cnki.cst.2021-0821| Citation: |
XU Feiya，GUO Wenbing，WANG Chen. Research on surface subsidence law in high-intensity mining of shallow buried with thick coal seam[J]. Coal Science and Technology，2023，51（5）：11−20 . DOI: 10.13199/j.cnki.cst.2021-0821
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Taking Daliuta Coal Mine in Western Shendong mining area as the engineering background, this paper selected typical shallow buried high-intensity mining panel 52307 to establish the observation station for surface movement. Combined RTK technology and 3D laser scanning technology for real-time monitoring, based on key layer theory and CISPM comprehensive surface subsidence prediction model software, the characteristics of surface movement and deformation, surface movement angular parameters and surface cracks in high-intensity mining of shallow buried was studied. The results showed that with the advance of the panel from the set-up room, the surface subsidence was small at the set-up room position and then increased suddenly and rapidly. Simultaneously, the subsidence curve became steep sharply. When the maximum subsidence value was reached, the subsidence velocity tended to slow down. The surface movement deformation was mainly concentrated in the middle of the panel, while the subsidence deformation around the panel and the influence range of surface movement was small. The surface movement angular parameters were quite larger in the Daliuta coal mine area, while the bedrock movement angle and boundary angle reached 87.7 ° and 84.1 ° respectively. The surface cracks caused by mining were in an overall “C” shape, mainly distributed in the middle of the panel. Then, As the working face continued to advance, the ground fissures continue to slowly extend, develop, and gradually close from the set-up room to the tailgate side, eventually forming a continuous surrounding "funnel" shape. Ground fissures always lagged behind the working face position and the lag distance of surface cracks increases linearly with the mining speed. According to the analysis of surface subsidence law and surface cracks development, it was concluded that under the condition of high-intensity mining of shallow buried with thick coal seam, due to the high mining intensity of the working face, fast advancing speed, single key layer structure and low occurrence horizon, the roof activity was intense and easy to slide and lose stability. As a result, it was appeared resulting in rapid convergence around the surface movement basin, serious damage in the middle, and intensive development of ground fissures.
| [1] |
2020 煤炭行业发展年度报告[R]. 北京: 中国煤炭工业协会, 2021.
|
| [2] |
王伟东,李少杰,韩九曦. 世界主要煤炭资源国煤炭供需形势分析及行业发展展望[J]. 中国矿业,2015,24(2):5−9. doi: 10.3969/j.issn.1004-4051.2015.02.004
WANG Weidong,LI Shaojie,HAN Jiuxi. Analysis of the main global coal resource countries’ supply-demand structural trend and coal industry outlook[J]. China Mining Magazine,2015,24(2):5−9. doi: 10.3969/j.issn.1004-4051.2015.02.004
|
| [3] |
杨正凯,张金虎,张 宁. 特厚软煤大采高综放工作面成套装备技术研究[J]. 煤炭工程,2020,52(8):123−126.
YANG Zhengkai,ZHANG Jinhu,ZAHNG Ning. Key technology in complete set of equipment for high cutting fully mechanized caving face in extra-thick soft coal[J]. Coal Engineering,2020,52(8):123−126.
|
| [4] |
黄庆享,赵萌烨,黄克军. 浅埋煤层群开采顶板双关键层结构及支护阻力研究[J]. 中国矿业大学学报,2019,48(1):71−77,86. doi: 10.13247/j.cnki.jcumt.000968
HUANG Qingxiang,ZHAO Mengye,HUANG Kejun. Study of roof double key strata structure and support resistance of shallow coal seams group mining[J]. Journal of China University of Mining and Technology,2019,48(1):71−77,86. doi: 10.13247/j.cnki.jcumt.000968
|
| [5] |
杨俊哲,刘前进. 8.8 m超大采高工作面矿压显现规律实测及机理分析[J]. 煤炭科学技术,2020,48(1):69−74.
YANG Junzhe,LIU Qianjin. Analysis and measured of strata behavior law and mechanism of 8.8 m ultra- high mining height working face[J]. Coal Science and Technology,2020,48(1):69−74.
|
| [6] |
高 超,徐乃忠,何标庆,等. 关键层对特厚煤层综放开采地表沉陷规律的影响研究[J]. 煤炭科学技术,2019,47(9):229−234. doi: 10.13199/j.cnki.cst.2019.09.029
GAO Chao,XU Naizhong,HE Biaoqing,et al. Study on influence of key strata on surface subsidence law of fully-mechanized caving mining in extra-thick coal seam[J]. Coal Science and Technology,2019,47(9):229−234. doi: 10.13199/j.cnki.cst.2019.09.029
|
| [7] |
AN Yanpei, ZHANG Nong, ZHAO Yiming, et al. Field and numerical investigation on roof failure and fracture control of thick coal seam roadway[J]. Engineering Failure Analysis, 2021(1):105594.
|
| [8] |
王 伟. 浅埋深厚煤层开采地表岩移观测分析[J]. 江西煤炭科技,2019(3):57−59,62. doi: 10.3969/j.issn.1006-2572.2019.03.020
WANG Wei. Observation and analysis of surface rock movement in mining of shallow depth coal seam[J]. Jiangxi Coal Science and Technology,2019(3):57−59,62. doi: 10.3969/j.issn.1006-2572.2019.03.020
|
| [9] |
李 磊. 榆林矿区浅埋深厚土层薄基岩煤层开采覆岩破坏规律研究[J]. 煤矿开采,2017,22(3):62−64,103. doi: 10.13532/j.cnki.cn11-3677/td.2017.03.019
LI Lei. Study of overburden broken law of coal seam mining with deep and thick soil layer with shallow depth in Yulin Mine Area[J]. Coal Mining Technology,2017,22(3):62−64,103. doi: 10.13532/j.cnki.cn11-3677/td.2017.03.019
|
| [10] |
郭文兵,白二虎,杨达明. 煤矿厚煤层高强度开采技术特征及指标研究[J]. 煤炭学报,2018,43(8):2117−2125. doi: 10.13225/j.cnki.jccs.2017.1573
GUO Wenbing,BAI Erhu,YANG Daming. Study on the technical characteristics and index of thick coal seam highintensity mining in coalmine[J]. Journal of China Coal Society,2018,43(8):2117−2125. doi: 10.13225/j.cnki.jccs.2017.1573
|
| [11] |
杜善周. 神东矿区大规模开采的地表移动及环境修复技术研究[D]. 北京: 中国矿业大学(北京), 2010.
DU Shanzhou. The rule of the overlying strata movement and their phytoremediation technology after large-scale underground mining operation in Shengdong coal mine area[D]. Beijing : China University of Mining & Technology-Beijing, 2010.
|
| [12] |
王志山. 综放高强度开采地表沉陷变形规律实测研究[J]. 矿山测量,2018,46(4):69−72. doi: 10.3969/j.issn.1001-358X.2018.04.018
WANG Zhishan. Study on law of surface subsidence of fully mechanized caving mining with in - situ measurement[J]. Mine Surveying,2018,46(4):69−72. doi: 10.3969/j.issn.1001-358X.2018.04.018
|
| [13] |
谭志祥,王宗胜,李运江,等. 高强度综放开采地表沉陷规律实测研究[J]. 采矿与安全工程学报,2008,84(1):59−62. doi: 10.3969/j.issn.1673-3363.2008.01.012
TAN Zhixiang,WANG Zongsheng,Li Yunjang,et al. Field research on ground subsidence rules of intensive fully-m echanized m ining by sublevel caving[J]. Journal of Mining & Safety Engineering,2008,84(1):59−62. doi: 10.3969/j.issn.1673-3363.2008.01.012
|
| [14] |
徐乃忠,高 超,吴太平. 浅埋深高强度综采地表沉陷规律实测研究[J]. 煤炭科学技术,2017,45(10):150−154,202.
XU Naizhong,GAO Chao,WU Taiping. Study on actual measurement of surface subsidence law occurred by shallow mining depth and high intensity fully mechanized coal mining[J]. Coal Science and Technology,2017,45(10):150−154,202.
|
| [15] |
孙庆先. 浅埋煤层综采(综放)条件下地表移动变形特征分析[J]. 煤炭工程,2019,51(3):97−102.
SUN Qingxian. Study on characteristics of shallow coal seam surface subsidence under fully-mechanized mining (top-coal caving)[J]. Coal Engineering,2019,51(3):97−102.
|
| [16] |
郭文兵,王金帅,李圣军. 浅埋厚煤层高强度开采地表移动规律实测研究[J]. 河南理工大学学报(自然科学版),2016,35(4):470−475.
GUO Wenbing,WANG Jinshuai,LI Shengjun. Surveying study on surface movement characteristics of the high intensity mining under shallow depth thick seam[J]. Journal of Henan Polytechnic Univeirsity (Natural Science),2016,35(4):470−475.
|
| [17] |
陈俊杰,南 华,闫伟涛,等. 浅埋深高强度开采地表动态移动变形特征[J]. 煤炭科学技术,2016,44(3):158−162.
CHEN Junjie,NAN Hua,YAN Weitao,et al. Features of surface dynamic movement and deformation caused by high intensity mining with shallow depth[J]. Coal Science and Technology,2016,44(3):158−162.
|
| [18] |
李德海,许国胜,余华中. 厚松散层煤层开采地表动态移动变形特征研究[J]. 煤炭科学技术,2014,42(7):103−106.
LI Dehai,XU Guosheng,YU Huahong. Study on features of surface dynamic movement and deformation caused by coal mining under thick alluvium[J]. Coal Science and Technology,2014,42(7):103−106.
|
| [19] |
余学义,穆 驰,张冬冬. 厚松散层大采高开采地表移动变形规律研究[J]. 煤矿安全,2020,51(4):235−239,243.
YU Xueyi,MU Chi,ZHANG Dongdong. Study on law of surface movement and deformation in thick loose layer with large mining height[J]. Safety in Coal Mines,2020,51(4):235−239,243.
|
| [20] |
任永强,时 代. 万利矿区浅部煤层开采地表移动规律研究[J]. 矿山测量,2013(1):59−61. doi: 10.3969/j.issn.1001-358X.2013.01.020
REN Yongqiang,SHI Dai. Study on surface movement law of shallow coal seam mining in Wanli mining area[J]. Mine Surveying,2013(1):59−61. doi: 10.3969/j.issn.1001-358X.2013.01.020
|
| [21] |
张安兵,高井祥,张兆江,等. 老采空区地表沉陷混沌特征及时变规律研究[J]. 中国矿业大学学报,2009,38(2):170−174. doi: 10.3321/j.issn:1000-1964.2009.02.005
ZHANG Anbing,GAO Jingxiang,ZHANG Zhaojiang,et al. Chaotic Characteristics and Time-Variable Law of Surface Subsidence of Goaf[J]. Journal of China University of Mining & Technology,2009,38(2):170−174. doi: 10.3321/j.issn:1000-1964.2009.02.005
|
| [22] |
张安兵,刘新侠,高井祥,等. 基于经验模式分解和相空间重构的采空区地表动态变形混沌性态及时变规律研究[J]. 岩土力学,2010,31(10):3191−3196. doi: 10.3969/j.issn.1000-7598.2010.10.026
ZHANG Anbing,LIU Xinxia,GAO Jingxiang,et al. Law of time-dependent deformation and chaos characteristics of goaf surface based on empirical mode decomposition and phase space reconstruction technique[J]. Rock and Soil Mechanics,2010,31(10):3191−3196. doi: 10.3969/j.issn.1000-7598.2010.10.026
|
| [23] |
胡青峰,崔希民,袁德宝,等. 厚煤层开采地表裂缝形成机理与危害性分析[J]. 采矿与工程安全学报,2013,29(6):864−869.
HU Qingfeng,CUI Ximin,YUAN Debao,et al. Formation mechanism of surface cracks caused by thick seam mining and hazard analysis[J]. Journal of Mining & Safety Engineering,2013,29(6):864−869.
|
| [24] |
黄庆享,张 沛,董爱菊. 浅埋煤层地表厚砂土层“拱梁”结构模型研究[J]. 岩土力学,2009,30(9):2722−2726. doi: 10.3969/j.issn.1000-7598.2009.09.030
HUANG Qingxiang,ZHANG Pei,DONG Aiju. Mathematical model of “arch beam” of thick sandy soil layer movement in shallow seam[J]. Rock and Soil Mechanics,2009,30(9):2722−2726. doi: 10.3969/j.issn.1000-7598.2009.09.030
|
| [25] |
黄庆享,杜君武,侯恩科,等. 浅埋煤层群覆岩与地表裂隙发育规律和形成机理研究[J]. 采矿与安全工程学报,2019,36(1):7−15.
HUANG Qingxiang,DU Junwu,HOU Enke,et al. Research on overburden and ground surface cracks distribution and formation mechanism in shallow coal seams group mining[J]. Journal of Mining & Safety Engineering,2019,36(1):7−15.
|
| [26] |
钱鸣高, 石平五, 许家林. 矿山压力与岩层控制[M]. 北京: 中国矿业大学出版社, 2010.
QIAN Minggao, SHI Pingwu, XU Jialin. Ground pressure and strata control[M]. Beijing: China University of Mining and Technology Press, 2010.
|
| [27] |
张连贵. 兖州矿区非充分开采覆岩破坏机理与地表沉陷规律研究[D]. 徐州: 中国矿业大学, 2009.
ZHANG Liangui. Overburden failure mechanism and surface movement law due to sub-critical extraction in Yanzhou Mining Area[D]. Xuzhou: China University of Mining & Technology, 2009.
|
| [28] |
国家安全监管总局, 国家煤矿安监局, 国家能源局, 国家铁路局. 建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规范[M]. 北京: 煤炭工业出版社, 2017.
State administration for safety control and management, state administration of coal mine safety, state energy administration, state railway administration. standard of coal pillar design and mining under buildings, water bodies, railvays and main wells and roadvays[M]. Beijing: Coal Industry Press, 2017.
|
| [29] |
PENG Syd S, XU Feiya. Application research of 3D laser scanning technology in monitoring subsidence area of coal mining[C]. Proceedings of 37th International Conference on Ground Control in Mining, USA, Morgantown, 2018: 266−273.
|
| [30] |
GU Yuanyuan,ZHOU Dawei,ZHANG Demin,et al. Study on subsidence monitoring technology using terrestrial 3D laser scanning without a target in a mining area: an example of Wangjiata coal mine, China[J]. Bulletin of Engineering Geology and the Environment,2020:3575−3583.
|
| [31] |
PENG Syd S, Yi LUO. Comprehensive and Integrated Subsidence Prediction Model -CISPM(V2.0)[C]//Proceedings of 3rd Workshop on Surface Due to Underground Mining, 1992: 22−31.
|
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