采空区地下遗煤燃烧-地表碳通量相关性分析

doi:10.16265/j.cnki.issn1003-3033.2024.02.0420

中国安全科学学报 ›› 2024, Vol. 34 ›› Issue (2): 161-167.doi: 10.16265/j.cnki.issn1003-3033.2024.02.0420

采空区地下遗煤燃烧-地表碳通量相关性分析

王永军¹^,²(), 郑倩¹, 张河猛¹^,², 董伟³, 张晓明¹^,⁴, 佐佐木久郞³

¹ 辽宁工程技术大学安全科学与工程学院,辽宁葫芦岛 125105
² 辽宁工程技术大学矿山热动力灾害与防治教育部重点实验室,辽宁葫芦岛 125105
³ 九州大学工学府,日本福冈 819-0385
⁴ 辽宁工程技术大学工程与环境研究所,辽宁葫芦岛 125105

收稿日期:2023-08-20 修回日期:2023-11-21 出版日期:2024-02-28
作者简介:
王永军 (1985—),男,山东临沂人,博士,讲师,硕士生导师,主要从事煤炭自燃、矿井通风等方面的研究。E-mail: wyj917@126.com。
张河猛讲师
张晓明教授
佐佐木久郞教授
基金资助:
国家自然科学基金资助(52304220); 辽宁省教育厅基本科研项目(LJKMZ20220667); 日本JSPS科研费项目(JP-20K21163)

Correlation analysis between combustion of underground residual coal and surface carbon flux in goaf

WANG Yongjun¹^,²(), ZHENG Qian¹, ZHANG Hemeng¹^,², DONG Wei³, ZHANG Xiaoming¹^,⁴, SASAKI Kyuro³

¹ College of Safety Science and Engineering, Liaoning Technical University, Huludao Liaoning 125105, China
² Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education, Liaoning Technical University, Huludao Liaoning 125105, China
³ Faculty of Engineering, Kyushu University, Fukuoka 819-0385, Japan
⁴ Institute of Engineering and Environment, Liaoning Technical University, Huludao Liaoning 125105, China

Received:2023-08-20 Revised:2023-11-21 Published:2024-02-28

摘要/Abstract

摘要：

为探究复杂条件下地表碳通量对地下遗煤自燃的响应机制,通过长期监测阜新海州露天矿采空区上覆地表碳通量、土壤温度、地表裂缝、环境风速、土壤湿度等数据,并结合现场试验,研究遗煤燃烧与地表碳通量的相关性,分析地表裂缝、环境风速、土壤湿度等因素对地下煤自燃-地表碳通量的影响特征。结果表明:地下遗煤燃烧是触发地表碳通量异常响应的根本因素,碳通量与土壤温度分布呈正相关;裂缝是影响地表碳通量分布的主要因素,环境风速与地表碳通量基本呈正相关,地表碳通量一般不受土壤湿度影响,但受降雨影响较大。

关键词: 采空区, 遗煤燃烧, 地表碳通量, 相关性分析, 地表裂缝, 环境风速, 土壤湿度

Abstract:

In order to explore the response mechanism of spontaneous combustion of underground coal and surface carbon flux under complex conditions, the surface CO₂ flux, soil temperature, fissure, environmental wind velocity and soil humidity in Fuxin Haizhou open-pit mine were monitored for a long time. Field tests, data analysis and other methods were applied to study the correlation between the underground coal spontaneous combustion and surface CO₂ flux. The influence of surface fissure, environmental wind velocity and soil humidity on the response mechanism of underground coal spontaneous combustion-surface carbon flux were analyzed. The results show that underground coal combustion is the fundamental factor triggering the abnormal surface carbon flux response. The surface CO₂ flux is positively correlated with the surface soil temperature distribution. Surface fissure is the main factor affecting the surface CO₂ flux distribution. The environmental wind speed is positively correlated with the surface CO₂ flux. The surface CO₂ flux response is generally not affected by soil humidity, but it is greatly affected by rainfall.

Key words: goaf, combustion of residual coal, soil surface CO₂ flux, correlation analysis, surface fissure, environmental wind velocity, soil humidity

中图分类号:

X936

王永军, 郑倩, 张河猛, 董伟, 张晓明, 佐佐木久郞. 采空区地下遗煤燃烧-地表碳通量相关性分析[J]. 中国安全科学学报, 2024, 34(2): 161-167.

WANG Yongjun, ZHENG Qian, ZHANG Hemeng, DONG Wei, ZHANG Xiaoming, SASAKI Kyuro. Correlation analysis between combustion of underground residual coal and surface carbon flux in goaf[J]. China Safety Science Journal, 2024, 34(2): 161-167.

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采空区地下遗煤燃烧-地表碳通量相关性分析

Correlation analysis between combustion of underground residual coal and surface carbon flux in goaf

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