| Citation: |
XIAO Peng，WU Mingchuan，SHUANG Haiqing，et al. Occurrence law of coal seam gas under influence of normal fault zone in coal measures[J]. Coal Geology & Exploration，2022，50(10)：16−25. DOI: 10.12363/issn.1001-1986.22.02.0076
|
The coal measure fault zone generated by the superimposition of the polytropic movement and multiple structure has important effects on the coal seam gas occurrence. The method of combining the geologic analysis, COMSOL Multiphysics numerical simulation and field data monitoring was adopted to analyze the interaction relations between the stress distribution characteristics and faults of the normal fault zone in the coal measure, study the coal seam permeability variation characteristics influenced by the normal fault zone in the coal measure, and simulate the gas migration status and concentration distribution condition after the formation of the normal fault zone. The coal seam gas occurrence law was further analyzed and obtained based on the monitoring results of the gas content and the gas outflow. As indicated by the study result, the stress concentration of the coal measure fault zone was mainly distributed on the fault plane of the coal seam. The stress drop occurred at the intersections of rock strata, coal seams and fault planes. The coal seam permeability in the affected area of the coal measure fault zone was in the order of large to small: the fault plane、average value in the area、upper wall of the fault、lower wall of the fault. The coal seam gas concentration was decreased gradually with the simulation time. The gas concentration decrease rates of the internal graben, horst and step fault in the normal fault zone of the coal seam were slightly higher than those of the boundary fault blocks at the both sides, and the gas showed obvious accumulation characteristics in the faults and fault blocks and the boundary outside the normal fault zone. The gas content in the normal fault zone of the coal measure and the average volume fraction of the return gas during stoping were 2.592 1 m3/t and 0.224 0%. The average values at the both sides of the boundary outside the fault zone were 4.480 2 m3/t and 0.454 9%. Accordingly, the new gas-concentrated areas were formed at the both sides of the normal fault zone in the coal measure.
| [1] |
张子敏. 瓦斯地质学[M]. 徐州: 中国矿业大学出版社, 1992.
|
| [2] |
彭苏萍. 我国煤矿安全高效开采地质保障系统研究现状及展望[J]. 煤炭学报,2020,45(7):2331−2345.
PENG Suping. Current status and prospects of research on geological assurance system for coal mine safe and high efficient mining[J]. Journal of China Coal Society,2020,45(7):2331−2345.
|
| [3] |
舒龙勇,程远平,王亮,等. 地质因素对煤层瓦斯赋存影响的研究[J]. 中国安全科学学报,2011,21(2):121−125. DOI: 10.3969/j.issn.1003-3033.2011.02.021
SHU Longyong,CHENG Yuanping,WANG Liang,et al. Research on influence of geological factors on gas storage in coal seam[J]. China Safety Science Journal,2011,21(2):121−125. DOI: 10.3969/j.issn.1003-3033.2011.02.021
|
| [4] |
孟凡彬. 煤系地层下的小断层识别影响因素探讨[J]. 工程地球物理学报,2019,16(3):259−265. DOI: 10.3969/j.issn.1672-7940.2019.03.001
MENG Fanbin. Discussion on factors affecting identification of small faults under coal measures strata[J]. Chinese Journal of Engineering Geophysics,2019,16(3):259−265. DOI: 10.3969/j.issn.1672-7940.2019.03.001
|
| [5] |
孔胜利,杨洋,贾音,等. 煤层瓦斯赋存特征及其关键地质因素影响研究[J]. 煤炭科学技术,2019,47(7):53−58.
KONG Shengli,YANG Yang,JIA Yin,et al. Study on occurrence characteristics of coal seam gas and its key geological factors[J]. Coal Science and Technology,2019,47(7):53−58.
|
| [6] |
蔺亚兵,秦勇,王兴,等. 彬长低阶煤高瓦斯矿区瓦斯地质及其涌出特征[J]. 煤炭学报,2019,44(7):2151−2158.
LIN Yabing,QIN Yong,WANG Xing,et al. Geology and emission of mine gas in Binchang mining area with low rank coal and high mine gas[J]. Journal of China Coal Society,2019,44(7):2151−2158.
|
| [7] |
CHEN Xiangjun,LI Liyang,YUAN Yu,et al. Effect and mechanism of geological structures on coal seam gas occurrence in Changping minefield[J]. Energy Science & Engineering,2020,8(1):104−115.
|
| [8] |
宋占全,魏国营. 薛湖井田小断层对煤与瓦斯突出的控制作用[J]. 煤矿安全,2017,48(12):153−156. DOI: 10.13347/j.cnki.mkaq.2017.12.041
SONG Zhanquan,WEI Guoying. Control effect of small faults on coal and gas outburst in Xuehu mine[J]. Safety in Coal Mines,2017,48(12):153−156. DOI: 10.13347/j.cnki.mkaq.2017.12.041
|
| [9] |
倪小明,贾炳,朱明阳. 寺河矿正断层附近瓦斯涌出量变化规律研究[J]. 安全与环境学报,2012,12(6):193−197. DOI: 10.3969/j.issn.1009-6094.2012.06.042
NI Xiaoming,JIA Bing,ZHU Mingyang. On the changing regularity of the gas emission due to the normal neighboring faults in Sihe coal mine[J]. Journal of Safety and Environment,2012,12(6):193−197. DOI: 10.3969/j.issn.1009-6094.2012.06.042
|
| [10] |
崔洪庆,姚念岗. 不渗透断层与瓦斯灾害防治[J]. 煤炭学报,2010,35(9):1486−1489. DOI: 10.13225/j.cnki.jccs.2010.09.022
CUI Hongqing,YAO Niangang. Impermeable faults and prevention of gas hazards[J]. Journal of China Coal Society,2010,35(9):1486−1489. DOI: 10.13225/j.cnki.jccs.2010.09.022
|
| [11] |
刘咸卫,曹运兴,刘瑞勋,等. 正断层两盘的瓦斯突出分布特征及其地质成因浅析[J]. 煤炭学报,2000,25(6):571−575. DOI: 10.3321/j.issn:0253-9993.2000.06.003
LIU Xianwei,CAO Yunxing,LIU Ruixun,et al. Analysis on distribution features of gas outburst from two walls of normal fault and geological origin[J]. Journal of China Coal Society,2000,25(6):571−575. DOI: 10.3321/j.issn:0253-9993.2000.06.003
|
| [12] |
韩松林,赵亚娟,高琳,等. 瓦斯地质区划及瓦斯异常分析:以顺和煤矿二2煤层为例[J]. 煤炭科学技术,2021,49(11):150−156.
HAN Songlin,ZHAO Yajuan,GAO Lin,et al. Gas anomaly analysis and gas geological division of No.22 coal seam in Shunhe coal mine[J]. Coal Science and Technology,2021,49(11):150−156.
|
| [13] |
孙长彦,杨宗楠,杨恒. 西山煤田山西组震积岩特征及其煤系气勘探开发意义[J]. 煤炭科学技术,2021,49(9):136−144. DOI: 10.13199/j.cnki.cst.2021.09.020
SUN Changyan,YANG Zongnan,YANG Heng. Seismites characteristics and significance of exploration and development from coal measure gas of Shanxi Formation in Xishan coalfield[J]. Coal Science and Technology,2021,49(9):136−144. DOI: 10.13199/j.cnki.cst.2021.09.020
|
| [14] |
杨柏. 井震结合“一井多断”小断层特征研究[J]. 长江大学学报(自科版),2016,13(32):50−53. DOI: 10.16772/j.cnki.1673-1409.2016.32.009
YANG Bai. Study on the characteristics of small fault with“multiple breakpoints in a well”in logging combined with seism[J]. Journal of Yangtze University (Natural Science Edition),2016,13(32):50−53. DOI: 10.16772/j.cnki.1673-1409.2016.32.009
|
| [15] |
肖晖,李建新,韩伟,等. 鄂尔多斯盆地南缘渭北隆起中新生代构造抬升及演化[J]. 西安科技大学学报,2013,33(5):576−582. DOI: 10.3969/j.issn.1672-9315.2013.05.014
XIAO Hui,LI Jianxin,HAN Wei,et al. The tectonic uplift time and evolution characteristics of Weibei uplift in the south edge of Ordos basin[J]. Journal of Xi'an University of Science and Technology,2013,33(5):576−582. DOI: 10.3969/j.issn.1672-9315.2013.05.014
|
| [16] |
翁剑桥,曾联波,吕文雅,等. 断层附近地应力扰动带宽度及其影响因素[J]. 地质力学学报,2020,26(1):39−47. DOI: 10.12090/j.issn.1006-6616.2020.26.01.004
WENG Jianqiao,ZENG Lianbo,LYU Wenya,et al. Width of stress disturbed zone near fault and its influencing factors[J]. Journal of Geomechanics,2020,26(1):39−47. DOI: 10.12090/j.issn.1006-6616.2020.26.01.004
|
| [17] |
武强,朱斌,刘守强. 矿井断裂构造带滞后突水的流–固耦合模拟方法分析与滞后时间确定[J]. 岩石力学与工程学报,2011,30(1):93−104.
WU Qiang,ZHU Bin,LIU Shouqiang. Flow–solid coupling simulation method analysis and time identification of lagging water–inrush near mine fault belt[J]. Chinese Journal of Rock Mechanics and Engineering,2011,30(1):93−104.
|
| [18] |
王怀勐,朱炎铭,李伍,等. 煤层气赋存的两大地质控制因素[J]. 煤炭学报,2011,36(7):1129−1134. DOI: 10.13225/j.cnki.jccs.2011.07.005
WANG Huaimeng,ZHU Yanming,LI Wu,et al. Two major geological control factors of occurrence characteristics of CBM[J]. Journal of China Coal Society,2011,36(7):1129−1134. DOI: 10.13225/j.cnki.jccs.2011.07.005
|
| [19] |
王璞,王成虎,杨汝华,等. 基于应力多边形与震源机制解的深部岩体应力状态预测方法初探[J]. 岩土力学,2019,40(11):4486−4496. DOI: 10.16285/j.rsm.2019.0404
WANG Pu,WANG Chenghu,YANG Ruhua,et al. Preliminary investigation on the deep rock stresses prediction method based on stress polygon and focal mechanism solution[J]. Rock and Soil Mechanics,2019,40(11):4486−4496. DOI: 10.16285/j.rsm.2019.0404
|
| [20] |
刘清泉,程远平,李伟,等. 深部低透气性首采层煤与瓦斯气固耦合模型[J]. 岩石力学与工程学报,2015,34(增刊1):2749−2758.
LIU Qingquan,CHENG Yuanping,LI Wei,et al. Mathematical model of coupled gas flow and coal deformation process in low–permeability and first mined coal seam[J]. Chinese Journal of Rock Mechanics and Engineering,2015,34(Sup.1):2749−2758.
|
| [21] |
程远平,雷杨. 构造煤和煤与瓦斯突出关系的研究[J]. 煤炭学报,2021,46(1):180−198. DOI: 10.13225/j.cnki.jccs.yg20.1539
CHENG Yuanping,LEI Yang. Causality between tectonic coal and coal and gas outbursts[J]. Journal of China Coal Society,2021,46(1):180−198. DOI: 10.13225/j.cnki.jccs.yg20.1539
|
| [22] |
中国煤炭工业协会. 煤层瓦斯含量井下直接测定方法: GB/T 23250—2009[S]. 北京: 中国标准出版社, 2009.
|
| [23] |
魏国营,门金龙,贾安立,等. 基于上覆基岩特征的赵固一矿井田煤层瓦斯富集区的判识方法[J]. 煤炭学报,2012,37(8):1315−1319.
WEI Guoying,MEN Jinlong,JIA Anli,et al. Gas enrichment area identification methods by the overlying bedrock characteristic for Zhaogu No.1 coal mine[J]. Journal of China Coal Society,2012,37(8):1315−1319.
|
| 1. |
张学博，王攀，王豪. 小断层影响下的采空区瓦斯运移规律研究. 煤炭科学技术. 2024(04): 214-230 .
| |
| 2. |
乔伟. 以孔代巷瓦斯抽采工艺技术应用. 矿业安全与环保. 2024(03): 92-96+106 .
| |
| 3. |
柴俊清. 采煤工作面前断层走向与瓦斯运移特征分析. 陕西煤炭. 2024(09): 64-68+73 .
| |
| 4. |
徐明，张新过，贾军辉，郭帅昌，贾天让. 基于瓦斯地质单元划分的瓦斯赋存规律与瓦斯治理策略. 中国煤层气. 2024(05): 38-42 .
| |
| 5. |
李萍，马邮国，成龙，刘厚宁. 黄陵二号煤矿2号煤层瓦斯赋存规律研究. 中国煤层气. 2023(01): 28-31 .
| |
| 6. |
丁元伟. 某矿低渗透煤层瓦斯富集敏感指标研究. 安全. 2023(10): 41-45 .
| |
| 7. |
程晓阳. 杨柳煤矿10号煤层瓦斯赋存规律研究. 中国煤炭地质. 2023(12): 26-30 .
|
Copyright of website design © Editorial Office of Coal Geology & Exploration 陕ICP备05001372号-6
陕公网安备 61019002002193号
Address: Editorial Office of Coal Geology & Exploration, No.82 Jinye 1st Rd, High-Tech Zone, Xi'an City, Shaanxi, China
Tel: 029-81778075 E-mail: ccrimtdzykt@vip.163.com
Supported by: Beijing Renhe Information Technology Co., Ltd. 
DownLoad: