| Citation: |
XU Junsong，PAN Pengzhi，CHEN Jianqiang，et al. Study on burst risk assessment of coal seam in folded area based on pre-mining stress back analysis[J]. Coal Science and Technology，2023，51（9）：35−45. DOI: 10.12438/cst.2022-0827
|
In order to scientifically evaluate the impact risk of steeply inclined extra-thick coal seam in folded area and provide theoretical guidance for the prevention and control of rock burst, a numerical model including folds is established in this paper based on the prevention and control of rock burst in south mining area of Wudong Coal Mine. With the help of multiple linear regression and CASRock engineering software, the back analysis of ground stress field of steeply-inclined extra-thick coal seam in folded area of Wudong Mine is carried out. Taking B1+2 coal seam as the research object, the stress data in coal seam, roof and floor are extracted, the stress-cover depth variation curve is plotted, the distribution characteristics of pre-mining stress field are explored, and the risk assessment index related to pre-mining stress is determined. According to the back analysis data of in-situ stress and previous research results, the evaluation indexes of burst risk are determined from the aspects of geological factors and mining conditions. The static weights of 7 geological factors and 5 mining conditions are obtained by Analytic Hierarchy Process. By substituting the static weight into the dynamic weight calculation formula and combining with the traditional comprehensive index method, the risk assessment of B1+2 panel at +500 m level in the south area of Wudong Mine is carried out. According to the rockburst risk classification table, the burst risk of this panel is medium, which is consistent with the conclusion of the geological report, and the rationality of the method was verified. This method is used to estimate the burst risk of coal seam with different depths. Control group is chosen, using the traditional comprehensive risk index method to evaluate the burst of the same area, the results show that the method to obtain the risk ratings were higher than the traditional methods, approach of this paper highlights the risk factors in the evaluation index, overcoming the other indicators evaluation error caused by the interference factors.
| [1] |
齐庆新, 窦林名. 冲击地压理论与技术[M]. 徐州: 中国矿业大学出版社, 2008: 32−38.
|
| [2] |
LU Caiping,LIU Guangjian,LIU Yang. Microseismic multi-parametercharacteristics of rock-burst hazard induced by hard roof fall and high stress concentration[J]. International Journal of Rock Mechanics & Mining Sciences,2015,24(2):18−32.
|
| [3] |
兰天伟,张宏伟,李 胜,等. 矿井冲击地压危险性预测的多因素模式识别[J]. 中国安全科学学报,2013,23(3):33−38. doi: 10.16265/j.cnki.issn1003-3033.2013.03.012
LAN Tianwei,ZHANG Hongwei,LI Sheng,et al. Multi-factor pattern recognition method for predicting mine rock burst risk[J]. China Safety Science Journal,2013,23(3):33−38. doi: 10.16265/j.cnki.issn1003-3033.2013.03.012
|
| [4] |
金佩剑,王恩元,刘晓斐,等. 冲击地压危险性综合评价的突变级数法研究[J]. 采矿与安全工程学报,2013,30(2):256−261.
JIN Peijian,WANG Enyuan,LIU Xiaofei,et al. Catastrophe progression method on comprehensive evaluation of rock burst[J]. Journal of Mining & Safety Engineering,2013,30(2):256−261.
|
| [5] |
曲效成, 姜福兴, 于正兴, 等. 基于当量钻屑法的冲击地压监测预警技术研究及应用[J]. 岩石力学与工程学报, 2011, 30(11): 2346-2351
QU Xiaocheng, JIANG Fuxing, YU Zhengxing, et al. Rockburst monitoring and precaution technology based on equivalent drilling research and its applications. [J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(11): 2346-2351.
|
| [6] |
聂百胜,何学秋,王恩元,等. 电磁辐射法预测煤矿冲击地压[J]. 太原理工大学学报,2000,31(6):609−611. doi: 10.3969/j.issn.1007-9432.2000.06.002
NIE Baisheng,HE Xueqiu,WANG Enyuan,et al. Forecasting rockburst with the electromagnetic emission method in coalmine[J]. Journal of Taiyuan University of Technology,2000,31(6):609−611. doi: 10.3969/j.issn.1007-9432.2000.06.002
|
| [7] |
齐庆新,李首滨,王淑坤. 地音监测技术及其在矿压监测中的应用研究[J]. 煤炭学报,1994,19(3):221−232. doi: 10.13225/j.cnki.jccs.1994.03.001
QI Qingxin,LI Shoubin,WANG Shukun. Application of AE method technique in monitoring ground pressure[J]. Journal of China Coal Society,1994,19(3):221−232. doi: 10.13225/j.cnki.jccs.1994.03.001
|
| [8] |
窦林名,贺 虎,何 江,等. 冲击危险评价的相对应力集中系数叠加法[J]. 煤炭学报,2018,43(2):328−332. doi: 10.13225/j.cnki.jccs.2017.4155
DOU Linming,HE Hu,HE Jiang,et al. New method of rockburst risk assessment using relative stress concentration factor superposition[J]. Journal of China Coal Society,2018,43(2):328−332. doi: 10.13225/j.cnki.jccs.2017.4155
|
| [9] |
窦林名,曹晋荣,曹安业,等. 煤矿矿震类型及震动波传播规律研究[J]. 煤炭科学技术,2021,49(6):23−31.
DOU Linming,CAO Jinrong,CAO Anye,et al. Research on types of coal mine tremor and propagation law of shock waves[J]. Coal Science and Technology,2021,49(6):23−31.
|
| [10] |
曲孔典,马文强,刘 钒,等. 冲击地压综合指数法中采空区宽度评价指数修正[J]. 煤炭技术,2016,35(5):93−95.
QU Kongdian,MA Wenqiang,LIU Fan,et al. Evaluation index modification of gob width in comprehensive index method about rock-burst[J]. Coal Technology,2016,35(5):93−95.
|
| [11] |
陈建强,闫瑞兵,刘昆轮. 乌鲁木齐矿区冲击地压危险性评价方法研究[J]. 煤炭科学技术,2018,46(10):26−29. doi: 10.13199/j.cnki.cst.2018.10.004
CHEN Jianqiang,YAN Ruibing,LIU Kunlun. Study on evaluation method of rock - burst danger in Urumqi Mining Area[J]. Coal Science and Technology,2018,46(10):26−29. doi: 10.13199/j.cnki.cst.2018.10.004
|
| [12] |
秦忠诚,陈光波,李 谭,等. 基于集对分析−区间三角模糊数的冲击地压耦合评价模型及应用[J]. 山东科技大学学报:自然科学版,2019,38(1):16−24.
QIN Zhongcheng,CHEN Guangbo,LI Tan,et al. Evaluation model and application of rock-burst coupling based on set pair analysis and interval triangular fuzzy number[J]. Journal of Shandong University of Science and Technology(Nature Science),2019,38(1):16−24.
|
| [13] |
尹永明,张兴凯,周建新,等. 基于模糊综合评判的冲击地压危险性分区预评价技术研究[J]. 中国安全生产科学技术,2017,13(3):180−184. doi: 10.11731/j.issn.1673-193x.2017.03.029
YIN Yongming,ZHANG Xingkai,ZHOU Jianxin,et al. Study on zoning pre-evaluation technology of rock - burst risk based on fuzzy comprehensive evaluation[J]. Journal of Safety Science and Technology,2017,13(3):180−184. doi: 10.11731/j.issn.1673-193x.2017.03.029
|
| [14] |
曾繁慧,张 晶,汪北方,等. 煤矿冲击地压危险性模糊综合评价[J]. 辽宁工程技术大学学报(自然科学版),2018,37(1):205−209.
ZENG Fanhui,ZHANG Jing,WANG Beifang,et al. Fuzzy comprehensive evaluation of rock -burst risk in coal mine[J]. Journal of Liaoning Technical University (Natural Science),2018,37(1):205−209.
|
| [15] |
张宏伟,荣 海,陈建强,等. 基于地质动力区划的近直立特厚煤层冲击地压危险性评价[J]. 煤炭学报,2015,40(12):2756−2761. doi: 10.13225/j.cnki.jccs.2015.0244
ZHANG Hongwei,RONG Hai,CHEN Jianqiang,et al. Risk assessment of rockburst based on geo-dynamic division method in suberect and extremely thick coal seam[J]. Journal of China Coal Society,2015,40(12):2756−2761. doi: 10.13225/j.cnki.jccs.2015.0244
|
| [16] |
邓志刚. 基于三维地应力场反演的宏观区域冲击危险性评价[J]. 煤炭科学技术,2018,46(10):78−82. doi: 10.13199/j.cnki.cst.2018.10.012
DENG Zhigang. Danger evaluation of pressure bump in macro area based on 3D geostress field inversion[J]. Coal Science and Technology,2018,46(10):78−82. doi: 10.13199/j.cnki.cst.2018.10.012
|
| [17] |
姜福兴,舒凑先,王存文. 基于应力叠加回采工作面冲击危险性评价[J]. 岩石力学与工程学报,2015,34(12):2428−2435. doi: 10.13722/j.cnki.jrme.2013.1596
JIANG Fuxing,SHU Couxian,WANG Cunwen. Impact risk appraisal of stope working faces based on stress superimposition[J]. Chinese Journal of Rock Mechanics and Engineering,2015,34(12):2428−2435. doi: 10.13722/j.cnki.jrme.2013.1596
|
| [18] |
秦子晗. 沿空工作面冲击危险性动态权重评价方法研究[J]. 煤矿开采,2014,19(1):87−90. doi: 10.13532/j.cnki.cn11-3677/td.2014.01.025
QIN Zihan. Dynamic weight evaluation method for rock-burst dangerin mining face along gob[J]. Coal Mining Technology,2014,19(1):87−90. doi: 10.13532/j.cnki.cn11-3677/td.2014.01.025
|
| [19] |
何学秋,陈建强,宋大钊,等. 典型近直立煤层群冲击地压机理及监测预警研究[J]. 煤炭科学技术,2021,49(6):13−22.
HE Xueqiu,CHEN Jianqiang,SONG Dazhao,et al. Study on mechanism of rock burst and early warning of typical steeply inclined coal seams[J]. Coal Science and Technology,2021,49(6):13−22.
|
| [20] |
GB 50197—2015, 煤炭工业露天矿设计规范[S].
|
| [21] |
杨小朋. 急倾斜煤层冲击地压危险性评价[D]. 绵阳: 西南科技大学, 2019.
YANG Xiaopeng. Steep seam impact ground pressure hazard evaluation [D]. Mianyang: Southwest university of science and technology, 2019.
|
| [22] |
张宏伟, 李 胜, 韩 军, 荣海/乌东煤矿冲击地压地质动力区划研究[R]. 乌鲁木齐: 国家能源集团新疆能源公司, 2015.
|
| [23] |
潘俊锋, 杜涛涛, 张 营. 乌东煤矿南采区地应力测量[R]. 乌鲁木齐: 国家能源集团新疆能源公司, 2020.
PAN Junfeng, DU Taotao, ZHANG Ying. In-situ stress measurement in south mining area of Wudong Coal Mine [R]. Urumqi: Xinjiang Energy Company of State Energy Group, 2020.
|
| [24] |
PANP Z,FENG X T,HUDSON J A. Study of failure andscale effects in rocks under uniaxial compression using 3Dcellular automata[J]. International Journal of Rock Mechanics and Mining Shiences,2009,46(4):674−685.
|
| [25] |
侯俊领. 煤矿深井地应力场反演及应用研究[D]. 淮南: 安徽理工大学, 2014.
HOU Junling. Inversion and application of in-situ stress field in deep coal mine [D]. Huainan: Anhui University of Science and Technology, 2014.
|
| [26] |
康 震. 向斜构造对乌东煤矿冲击地压的影响研究[D]. 阜新: 辽宁工程技术学, 2016.
KANG Zhen. Syncline structure for the east coal mine bumps research [D]. Fuxin: Liaoning Technical University, 2016.
|
Supported by: Beijing Renhe Information Technology Co., Ltd. 
DownLoad: