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[1]张晓明,刘礼龙,王永军,等.露天矿遗煤区地表CO2通量变化规律测试分析[J].中国安全生产科学技术,2018,14(6):90-96.[doi:10.11731/j.issn.1673-193x.2018.06.014]
　ZHANG Xiaoming,LIU Lilong,WANG Yongjun,et al.Test and analysis of surface CO2 flux variation in opencast coal mining area[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(6):90-96.[doi:10.11731/j.issn.1673-193x.2018.06.014]
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露天矿遗煤区地表CO2通量变化规律测试分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年6期
页码:
90-96
栏目:
职业安全卫生管理与技术
出版日期:
2018-06-30

文章信息/Info

Title:
Test and analysis of surface CO2 flux variation in opencast coal mining area
文章编号:
1673-193X(2018)-06-0090-07
作者:
张晓明1; 2; 刘礼龙1; 王永军3; 张河猛3;  黄亮1; 佐佐木久郎4
（1.辽宁工程技术大学安全科学与工程学院，辽宁 阜新 12300；2.辽宁工程技术大学工程与环境研究所，辽宁 葫芦岛 125000；3.辽宁工程技术大学矿业学院，辽宁 阜新 123000；4.九州大学工学府，日本 福冈 819-0385）
Author(s):
ZHANG Xiaoming1; 2;  LIU Lilong1;  WANG Yongjun3;  ZHANG Hemeng3;  HUANG Liang1;  SASAKI Kyuro4
(1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China;2. Institute of Engineering and Environment, Liaoning Technical University, Huludao Liaoning 125000, China;3. College of Mining Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China;4. Faculty of Engineering, Kyushu University, Fukuoka 819-0385, Japan)
关键词:
土壤气体监测系统; 采空区; 遗煤自燃; 地表CO2通量; 地表环境评估
Keywords:
soil gas monitoring system;  goaf;  spontaneous combustion of residual coal;  CO2 flux on ground surface;  ground surface environmental assessment
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2018.06.014
文献标志码:
A
摘要:
探索了通过采空区上部地表CO2通量变化判定遗煤自燃状态的实验理论及方法，并根据地表和大气间的扩散原理，采用自主研发的土壤气体监测系统，对采空区上覆地表CO2通量进行了连续测定。研究结果表明：采空区遗煤自燃对其上覆地表CO2通量变化有较大影响；采空区年限及遗煤氧化自热程度影响地表CO2通量的大小；自燃带地表CO2通量明显大于窒息带。地表CO2通量变化能反映采空区漏风量对遗煤自燃的影响；研究地表CO2通量变化规律，能够帮助了解采空区遗煤自燃火区的发育方向、范围等相关问题。研究对废弃矿井采空区地表环境评估，废弃矿井采空区遗煤氧化自燃的危险性评估以及浅埋煤层氧化自燃发火进行程度的探测具有重要意义。
Abstract:
The experimental theory and method to judge the spontaneous combustion state of residual coal by measuring the change of CO2 flux on the upper ground surface of goaf were explored, and according to the diffusion principles of the ground surface and the atmosphere, the CO2 flux on the overlying ground surface of goaf was continuously measured by using the selfdeveloped soil gas monitoring system. The results showed that the spontaneous combustion of residual coal in the goaf had relatively large influence on the change of CO2 flux on the overlying ground surface. The life of goaf and the degree of oxidation and selfheating of the residual coal would influence the amount of CO2 flux on the ground surface, and the CO2 flux on the ground surface in the spontaneous combustion zone was obviously larger than that in the suffocation zone. The change of CO2 flux on the ground surface can reflect the influence of air leakage in goaf on the spontaneous combustion of residual coal. The study on the change laws of CO2 flux on the ground surface is helpful to understand the development direction, range and other related problems of the spontaneous combustion area of the residual coal in goaf. This study has important significance for the ground surface environmental assessment of goaf, the risk assessment on the oxidation and spontaneous combustion of residual coal in goaf, and the detection on the degree of oxidation and spontaneous combustion in the shallow coal seam.

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更新日期/Last Update: 2018-07-05