WANG Zhimin，LIANG Yunpei，ZOU Quanle，et al. Movement of overlying rock and deformation law of surface well under multiple mining with large dip angle[J]. Coal Science and Technology，2023，51（4）：47−55
. DOI: 10.13199/j.cnki.cst.2021-0827| Citation: |
WANG Zhimin，LIANG Yunpei，ZOU Quanle，et al. Movement of overlying rock and deformation law of surface well under multiple mining with large dip angle[J]. Coal Science and Technology，2023，51（4）：47−55 . DOI: 10.13199/j.cnki.cst.2021-0827
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Surface wells are prone to deformation and even instability under the mining action caused by coal seam mining. This is also a key issue that restricts the application of gas drainage technology in surface wells in mining pressure relief areas. Based on the mining of high-incline coal seam group in Xinjiang 1930 Coal Mine, this paper carried out similar simulation experiments of surface well deformation under high-incline coal seam group mining, by monitoring overlying rock movement, coal seamstress changes, and the axial and circumferential directions of different positions of surface well pipelines. Deformation reveals the law of deformation of surface wells under the mining of large-dip coal seams. Research shows that: first, surface wells are in a state of sheer, compression, and tension during the mining process. Most of the time, the shear deformation in the axial direction is greater than the tensile deformation in the axial direction, that is, the shearing action on the surface well is dominant. At the same time, during the mining process, the shear deformation in the circumferential direction and the axial expansion and contraction deformation of the surface well is negative to a certain extent. The correlation, to a certain extent, shows that the shearing and tensioning, and compressing effects of surface wells are mutually restrictive; secondly, the axial deformation of surface wells shows an increasing trend as a whole, but the phenomenon of tension and shrinkage alternates in the process, and there is a big difference in the constant increase in the repeated mining of the near-level coal seam, and the changing trend of the circumferential shear deformation is similar to that of the near-level coal seam. The direction of displacement is always the inclination direction of the coal seam; the final study also found that the surface well defamation law in the upper part of the main key layer showed an overall “increase-decrease” alternating three times, and “increase-decrease” in the main key layer and lower part. Repeat four times alternately. The research results can provide certain theoretical support for the engineering application of surface wells in high-dip multiple mining areas.
| [1] |
周德昶. 地面钻井抽采瓦斯技术的发展方向[J]. 中国煤层气,2007,4(1):18−23.
ZHOU Dechang. Development direction of surface drilling gas extraction technology[J]. China Coalbed Methane,2007,4(1):18−23.
|
| [2] |
林海飞,李树刚,赵鹏翔,等. 我国煤矿覆岩采动裂隙带卸压瓦斯抽采技术研究进展[J]. 煤炭科学技术,2018,46(1):28−35.
LIN Haifei,LI Shugang,ZHAO Pengxiang,et al. Research progress of pressure relief gas drainage technology in mining fracture zone of coal mine overburden in China[J]. Coal Science and Technology,2018,46(1):28−35.
|
| [3] |
周世宁,林伯泉,李增华. 瓦斯煤层开采的新思路及待研究的主要问题[J]. 中国矿业大学学报,2001,30(2):111−113.
ZHOU Shining,LIN Boquan,LI Zenghua. New ideas and main problems to be studied in gas seam mining[J]. Journal of China University of Mining & Technology,2001,30(2):111−113.
|
| [4] |
ZHOU Fubao,XIA Tongqiang,WANG Xinxin,et al. Recent developments in coal mine methane extraction and utilization in China: A review[J]. J Nat Gas Sci Eng,2016,31:437−458. doi: 10.1016/j.jngse.2016.03.027
|
| [5] |
孙海涛,郑颖人,郭盛强,等. 地面井层面拉剪破坏模型及极限分析判识方法[J]. 中国矿业大学学报,2013,42(1):31−38.
SUN Haitao,ZHENG Yingren,GUO Shengqiang,et al. Tension shear failure model and limit analysis identification method of surface well layer[J]. Journal of China University of Mining & Technology,2013,42(1):31−38.
|
| [6] |
鲁 义,刘 春,黄鑫业,等. 基于Flac数值模拟的地面垂直钻井剪切破坏研究[J]. 煤炭技术,2012,31(1):83−85.
LU Yi,LIU Chun,HUANG Xinye,et al. Study on shear failure of surface vertical drilling based on FLAC numerical simulation[J]. Coal Technology,2012,31(1):83−85.
|
| [7] |
WHITTLES DN,LOWNDES IS,KINGMAN SW,et al. The stability of methane capture boreholes around a long wall coal panel[J]. International Journal of Coal Geology,2006,43(3):369−387.
|
| [8] |
Périé P J. Laboratory investigation of rock fracture around boreholes [D]. Berkeley: University of California, 1990.
|
| [9] |
钱鸣高,缪协兴. 采场上覆岩层结构的形态与受力分析[J]. 岩石力学与工程学报,1995,14(2):97−097.
QIAN Minggao,MIAO Xiexing. Shape and stress analysis of overburden structure in stope[J]. Chinese Journal of Rock Mechanics and Engineering,1995,14(2):97−097.
|
| [10] |
LIU Yuzhou,LI Xiaohong. Safety analysis of stability of surface gas drainage boreholes above goaf areas[J]. International Journal of Coal Science & Technology,2007,2:149−153.
|
| [11] |
孙海涛,付军辉. 重复采动下煤矿采动活跃区地面井变形特征研究[J]. 煤炭科学技术,2018,46(6):40−45.
SUN Haitao,FU Junhui. Study on deformation characteristics of surface wells in mining active areas of coal mines under repeated mining[J]. Coal Science and Technology,2018,46(6):40−45.
|
| [12] |
PENG SP,FU JT,ZHANG JC. Borehole casing failure analysis in unconsolidated formations: a case study[J]. Journal of Petroleum Science & Engineering,2007,59(3):226−238.
|
| [13] |
袁 亮,郭 华,李 平,等. 大直径地面钻井采空区瓦斯抽采理论与技术[J]. 煤炭学报,2013,38(1):1−8.
YUAN Liang,GUO Hua,LI Ping,et al. Gas drainage theory and technology in goaf of large diameter surface drilling[J]. Journal of China Coal Society,2013,38(1):1−8.
|
| [14] |
梁运培,孙东玲. 岩层移动的组合岩梁理论及其应用研究[J]. 岩石力学与工程学报,2002,21(5):654−657. doi: 10.3321/j.issn:1000-6915.2002.05.010
LIANG Yunpei,SUN Dongling. Study on composite rock beam theory and its application of rock stratum movement[J]. Chinese Journal of Rock Mechanics and Engineering,2002,21(5):654−657. doi: 10.3321/j.issn:1000-6915.2002.05.010
|
| [15] |
梁运培,胡千庭,郭 华,等. 地面采空区瓦斯抽放钻孔稳定性分析[J]. 煤矿安全,2007,38(3):1−4.
LIANG Yunpei,HU Qianting,GUO Hua,et al. Stability analysis of gas drainage boreholes in ground goaf[J]. Safety in Coal Mines,2007,38(3):1−4.
|
| [16] |
李日富,梁运培,张 军. 地面钻孔抽采采空区瓦斯效率影响因素[J]. 煤炭学报,2009,34(7):942−946. doi: 10.3321/j.issn:0253-9993.2009.07.016
LI Rifu,LIANG Yunpei,ZHANG Jun. Influencing factors of gas extraction efficiency in goaf by ground drilling[J]. Journal of China Coal Society,2009,34(7):942−946. doi: 10.3321/j.issn:0253-9993.2009.07.016
|
| [17] |
CHEN J,WANG T,ZHOU Y,et al. Failure modes of the surface venthole casing during longwall coal extraction: A case study[J]. International Journal of Coal Geology,2012,90-91:135−148. doi: 10.1016/j.coal.2011.11.007
|
| [18] |
解盘石,田双奇,段建杰. 大倾角伪俯斜采场顶板运移规律试验研究[J]. 煤炭学报,2019,44(10):2974−2982.
XIE Panshi,TIAN Shuangqi,DUAN Jianjie. Experimental study on roof movement law of large dip pseudo downdip stope[J]. Journal of China Coal Society,2019,44(10):2974−2982.
|
| [19] |
杨 科,池小楼,刘钦节,等. 大倾角煤层综采工作面再生顶板与支架失稳机理[J]. 煤炭学报,2020,45(9):3045−3053.
YANG Ke,CHI Xiaolou,LIU Qinjie,et al. Instability mechanism of regenerated roof and support in fully mechanized mining face with large dip seam[J]. Journal of China Coal Society,2020,45(9):3045−3053.
|
| [20] |
姚 琦,冯 涛,廖 泽. 急倾斜走向分段充填倾向覆岩破坏特性及移动规律[J]. 煤炭学报,2017,42(12):3096−3105.
YAO Qi,FENG Tao,LIAO Ze. Failure characteristics and movement law of overburden with steeply inclined sublevel filling tendency[J]. Journal of China Coal Society,2017,42(12):3096−3105.
|
| [21] |
张俊英. 大倾角多煤层条带开采三维有限元模拟研究[J]. 煤炭学报,1999,24(3):20−24. doi: 10.3321/j.issn:0253-9993.1999.03.004
ZHANG Junying. Study on three-dimensional finite element simulation of large dip multi seam strip mining[J]. Journal of China Coal Society,1999,24(3):20−24. doi: 10.3321/j.issn:0253-9993.1999.03.004
|
| [22] |
马月连,赵文静,王文博,等. 煤层开采采厚效应的相似模拟研究[J]. 煤炭技术,2019,38(3):34−37.
MA Yuelian,ZHAO Wenjing,WANG Wenbo,et al. Similar simulation study on thickness effect of coal seam mining[J]. Coal Technology,2019,38(3):34−37.
|
| [23] |
刘 云,王艾伦. 复杂系统相似性原理与相似条件研究[J]. 系统工程学报,2009,24(3):350−354.
LIU Yun,WANG Ailun. Study on similarity principle and similarity conditions of complex systems[J]. Journal of Systems Engineering,2009,24(3):350−354.
|
| [24] |
袁 亮. 低透高瓦斯煤层群安全开采关键技术研究[J]. 岩石力学与工程学报,2008,27(7):1370−1379.
YUAN Liang. Research on key technologies for safe mining of low permeability and high gas coal seams[J]. Chinese Journal of Rock Mechanics and Engineering,2008,27(7):1370−1379.
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