Model of surface subsidence basin for long-wall working face along strike of gently inclined coal seam

TANG Yichuan; XING Congcong; LIU Donghai; DENG Niandong; YAO Ting; SHANG Hui

doi:10.3969/j.issn.1001-1986.2020.05.020

Volume 48 Issue 5

Oct. 2020

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COAL GEOLOGY & EXPLORATION > 2020 > 48(5): 165-173,181. > DOI: 10.3969/j.issn.1001-1986.2020.05.020

TANG Yichuan, XING Congcong, LIU Donghai, DENG Niandong, YAO Ting, SHANG Hui. Model of surface subsidence basin for long-wall working face along strike of gently inclined coal seam[J]. COAL GEOLOGY & EXPLORATION, 2020, 48(5): 165-173,181. DOI: 10.3969/j.issn.1001-1986.2020.05.020

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Model of surface subsidence basin for long-wall working face along strike of gently inclined coal seam

1. College of Geology&Environment, Xi'an University of Science and Technology, Xi'an 710054, China;
2. The No. 107 Geological Team of the Chongqing Bureau of Geology and Mineral Exploration, Chongqing 401120, China

Funds:

National Natural Science Foundation of China(41702377)

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Received Date: July 29, 2020
Revised Date: September 10, 2020
Published Date: October 24, 2020

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Abstract

Abstract

In order to accurately describe the distribution of surface subsidence basin, and based on the power exponential function model and the subsidence features, the surface subsidence basin model of long-wall working face along strike with gently inclined coal seam was established concerned the combination of theoretical analysis and numerical simulation method. The influencing factors of model parameters and the changing patterns of parameters were analyzed, and the applicability and the predicting accuracy of the model were verified. The results showed that parameter n reflected the range of the bottom size of the sinking basin, which was mainly related to the degree of mining. The values of n ranged from 1 to 3, and its value accuracy depended on the number of observation points. The parameter k reflected the convergence speed and subsidence influencing range of the edge of the sinking basin, which was mainly related to coal mining method, roof management method and the thickness of loose layer. The value of k was determined by the maximum of surface subsidence value or thickness of coal. In the prediction of surface subsidence in Changcun coal mine, the sum of squared differences between the predicted value and the measured value was 3.08×10⁶, and the median error was 267.59 mm, which was 6.47% of the maximum of subsidence value. The research is aimed at providing theoretical basis for the prediction and prevention of surface subsidence in Changcun coal mine.
- mining subsidence,
- subsidence basin model,
- gentle-inclined coal seam,
- model parameters,
- Changcun coal mine

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[1]	何国清,杨伦. 矿山开采沉陷学[M]. 徐州:中国矿业大学出版社,1991. HE Guoqing,YANG Lun. Mining subsidence science[M]. Xuzhou:China University of Mining and Technology Press,1991.
[2]	范立民,向茂西,彭捷,等. 毛乌素沙漠与黄土高原接壤区泉的演化分析[J]. 煤炭学报,2018,43(1):207-218. FAN Limin,XIANG Maoxi,PENG Jie,et al.Evolution analysis on springs in contiguous area of Maowusu desert and loess plateau[J]. Journal of China Coal Society,2018,43(1):207-218.
[3]	廖国华,刘宝琛. 矿山岩石移动的时间-空间问题[J]. 煤炭学报,1964,1(3):1-14. LIAO Guohua,LIU Baochen. The time-space problem of overlying strata's movement under mining[J]. Journal of China Coal Society,1964,1(3):1-14.
[4]	崔希民,邓喀中. 煤矿开采沉陷预计理论与方法研究评述[J]. 煤炭科学技术,2017,45(1):160-169. CUI Ximin,DENG Kazhong. Research review of predicting theory and method for coal mining subsidence[J]. Coal Science and Technology,2017,45(1):160-169.
[5]	吴侃,葛家新,周鸣,等. 概率积分法预计模型的某些修正[J]. 煤炭学报,1998,23(1):33-36. WU Kan,GE Jiaxin,ZHOU Ming,et al. Some modifications of using probability integral method to predicate model[J]. Journal of China Coal Society,1998,23(1):33-36.
[6]	郭增长,王金庄,戴华阳. 极不充分开采地表移动与变形预计方法[J]. 矿山测量,2000(3):35-37. GUO Zengzhang,WANG Jinzhuang,DAI Huayang. A prediction method of surface movement and deformation in super-subcritical mining[J]. Mine Surveying,2000(3):35-37.
[7]	戴华阳,王金庄. 非充分开采地表移动预计模型[J]. 煤炭学报,2003,28(6):583-587. DAI Huayang,WANG Jinzhuang. Prediction model for surface movement and deformation induced by sub-critical extraction[J]. Journal of China Coal Society,2003,28(6):583-587.
[8]	郭增长,卢小平. 地表移动和变形的增量计算方法[J]. 矿山测量,2003(3):12-14. GUO Zengzhang,LU Xiaoping. Computational method of increment in surface movement and deformation[J]. Mine Surveying,2003(3):12-14.
[9]	PENG S S,CHIANG H S. Longwall mining[M]. New York:John Wiley & Sons,1984.
[10]	PENG S S,MA W M,ZHONG W L. Surface subsidence engineering[M]. Colorado:Metallurgy and Exploration,1992.
[11]	中国矿业学院. 煤矿岩层与地表移动[M]. 北京:煤炭工业出版社,1980. China Institute of Mining and Technology. Coal strata and surface movement[M]. Beijing:Coal Industry Press,1980.
[12]	何国清,马伟民,王金庄. 威布尔分布型影响函数在地表移动计算中的应用:用碎块体理论研究岩移基本规律的探讨[J]. 中国矿业学院学报,1982(1):1-20. HE Guoqing,MA Weimin,WANG Jinzhuang. Application of influence function of Weber distribution to the precalculation of ground surface movement:A study on the fundamental law of ground movement based on the clastic theory[J]. Journal of China University of Mining & Technology,1982(1):1-20.
[13]	何国清. 岩移预计的威布尔分布法[J]. 中国矿业学院学报,1988(1):8-15. HE Guoqing. The Weber-distribution method for calculating mining subsidence[J]. Journal of China University of Mining & Technology,1988(1):8-15.
[14]	郝延锦,吴立新,戴华阳. 用弹性板理论建立地表沉陷预计模型[J]. 岩石力学与工程学报,2006,25(增刊1):2958-2962. HAO Yanjin,WU Lixin,DAI Huayang. Establishing a ground settlement prediction model with elastic slab theory[J]. Chinese Journal of Rock Mechanics and Engineering,2006,25(Sup.1):2958-2962.
[15]	刘玉成,曹树刚,刘延保. 缓倾斜煤层矩形采空区地表沉陷盆地模型[J]. 中国矿业,2008,17(6):73-76. LIU Yucheng,CAO Shugang,LIU Yanbao. The subsidence basin model under rectangular goaf due to mining gentle-inclined coal seam[J]. China Mining Magazine,2008,17(6):73-76.
[16]	王宁,吴侃,刘锦,等. 基于Boltzmann函数的开采沉陷预测模型[J]. 煤炭学报,2013,38(8):1352-1356. WANG Ning,WU Kan,LIU Jin,et al. Model for mining subsidence prediction based on Boltzmann function[J]. Journal of China Coal Society,2013,38(8):1353-1356.
[17]	王军保,刘新荣,刘小军. 开采沉陷动态预测模型[J]. 煤炭学报,2015,40(3):516-521. WANG Junbao,LIU Xinrong,LIU Xiaojun. Dynamic prediction model for mining subsidence[J]. Journal of China Coal Society,2015,40(3):516-521.
[18]	高超,徐乃忠,刘贵. 特厚煤层综放开采地表沉陷预计模型算法改进[J]. 煤炭学报,2018,43(4):939-944. GAO Chao,XU Naizhong,LIU Gui. Improvement on prediction model algorithm for surface subsidence of extra thick seam using fully-mechanized coal caving method[J]. Journal of China Coal Society,2008,43(4):939-944.
[19]	徐永圻. 采矿学[M]. 徐州:中国矿业大学出版社,2003. XU Yongqi. Mining science[M]. Xuzhou:China University of Mining and Technology Press,2003.
[20]	吴侃,周鸣. 矿区沉陷预测预报系统[M]. 徐州:中国矿业大学出版社,1999:137-148. WU Kan,ZHOU Ming. Prediction and prediction system for mining subsidence[M]. Xuzhou:China University of Mining and Technology Press,1999:137-148.
[21]	国家安全监管总局,国家煤矿安监局,国家能源局,等. 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. State Administration of Safety,National Coal Mine Safety Administration,National Energy Administration,et al. Code for coal pillar retention and pressed coal mining in buildings,water bodies,railways and main shafts[S]. Beijing:Coal Industry Press,2017.
[22]	侯长祥. 关于计算最大下沉值通用公式的研究[J]. 煤炭科学技术,2001,29(3):35-37. HOU Changxiang. Research on the general calculating formula of maximum subsidence[J]. Coal Science and Technology,2001,29(3):35-37.
[23]	黄乐亭. 开采影响传播角与最大下沉角的关系[J]. 矿山测量,1986(1):13-18. HUANG Leting. The relationship between propagation angle of extraction and maximum subsidence angle[J]. Mine Surveying,1986(1):13-18.
[24]	邓念东,姚婷,尚慧,等. 铁路专线下综放开采地表沉陷规律[J]. 煤田地质与勘探,2019,47(6):121-125. DENG Niandong,YAO Ting,SHANG Hui,et al. Surface subsidence law caused by fully mechanized caving mining under railway[J]. Coal Geology & Exploration,2019,47(6):121-125.
[25]	滕永海,唐志新,郑志刚. 综采放顶煤地表沉陷规律研究及应用[M]. 北京:煤炭工业出版社,2009. TENG Yonghai,TANG Zhixin,ZHENG Zhigang. Research and application of surface subsidence law in fully mechanized top-coal caving[M]. Beijing:Coal Industry Press,2009.

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