Article(id=1282037426247942504, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1282037390130790473, articleNumber=null, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2025.12.1445, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1747756800000, receivedDateStr=2025-05-21, revisedDate=1754323200000, revisedDateStr=2025-08-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1783591141520, onlineDateStr=2026-07-09, pubDate=1766851200000, pubDateStr=2025-12-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1783591141520, onlineIssueDateStr=2026-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1783591141520, creator=13701087609, updateTime=1783591141520, updator=13701087609, issue=Issue{id=1282037390130790473, tenantId=1146029695717560320, journalId=1146031787341344770, year='2025', volume='35', issue='12', pageStart='1', pageEnd='259', issueExtLink='null', onlineDate='null', pubDate='1766851200000', pubDateStr='2025-12-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1783591132910, creator='13701087609', updateTime=1783593783109, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1282048505929777979, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1282037390130790473, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1282048505929777980, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1282037390130790473, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=96, endPage=102, ext={EN=ArticleExt(id=1282037426470240617, articleId=1282037426247942504, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Division of spontaneous combustion risk zones in coal mine gob areas using gas kernel density distribution, columnId=1149733269173878863, journalTitle=China Safety Science Journal, columnName=Safety engineering technology, runingTitle=null, highlight=null, articleAbstract=

To prevent coal spontaneous combustion disasters in the gob area and precisely delineate hazardous zones, the variation patterns of CO and O2 volume fractions along the gob length were statistically analyzed based on field measurements. Critical warning threshold ranges for spontaneous combustion were established and a gob hazard zoning method based on gas volume fraction kernel density was proposed. The results demonstrate that O2 volume fraction exhibits a linear variation with distinct stages, and the variation rate before the inflection point is lower than that after the point. The CO volume fraction follows a quadratic polynomial variation. The kernel densities of both CO and O2 volume fractions decrease with increasing gob length. Their highest kernel density distributions occur within 0-10m and 0-30m, respectively. O2 volume fraction is more stable before the inflection point but exhibits greater fluctuation afterward. The average upper and lower acceptable limits for O2 volume fraction before and after the inflection point are 3.3% and 6.3%, respectively. The critical CO and O2 volume fraction values for hazard zoning based on kernel density are 0.009% and 15.1%, which divides the gob area into four quadrants and three risk levels (safe, potentially hazardous, and hazardous).

, authors=Qing GUO1, Wanxing REN**, 2, Shengcheng WANG1, Hao WANG3, authorsList=Qing GUO, Wanxing REN, Shengcheng WANG, Hao WANG, authorCompany=null, correspAuthors=Wanxing REN, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1282037426994528620, articleId=1282037426247942504, tenantId=1146029695717560320, journalId=1146031787341344770, language=CN, title=基于气体核密度的采空区煤自燃危险区域划分, columnId=1149733269727526997, journalTitle=中国安全科学学报, columnName=安全工程技术, runingTitle=null, highlight=null, articleAbstract=

为预防采空区煤自燃灾害,精准划分采空区煤自燃危险区域,通过统计分析现场采空区CO和O2体积分数,得到气体体积分数随采空区长度的变化特征,确定煤自燃预警临界值范围,并提出基于气体体积分数核密度的采空区煤自燃危险区域划分方法。结果表明:采空区O2体积分数符合线性变化且具有阶段性,拐点前的变化速率小于拐点后的变化速率;CO体积分数符合二次多项式变化特征;CO和O2体积分数的核密度随着采空区长度的增加而降低,其最高核密度分布范围分别为0~10 m和0~30 m;拐点前O2体积分数更加稳定,拐点后O2体积分数波动性更大,拐点前后O2体积分数的上、下可接受区间平均值分别为3.3%和6.3%;通过核密度划分煤自燃危险区域的CO和O2体积分数临界值为0.009%和15.1%,将采空区划分为安全、潜在危险和危险3个危险等级4个象限。

, authors=郭庆讲师1, 任万兴教授**, 2, 王圣程副教授1, 汪皓讲师3, authorsList=郭庆讲师, 任万兴教授, 王圣程副教授, 汪皓讲师, authorCompany=null, correspAuthors=任万兴教授, authorNote=

郭庆(1989—),男,河南永城人,博士,讲师,主要从事煤矿火灾防控、粉尘防治等方面的研究。E-mail:

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** 任万兴(1980—),男,河南封丘人,博士,教授,主要从事矿井灾害防治方面的研究。E-mail:
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郭庆(1989—),男,河南永城人,博士,讲师,主要从事煤矿火灾防控、粉尘防治等方面的研究。E-mail:

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郭庆(1989—),男,河南永城人,博士,讲师,主要从事煤矿火灾防控、粉尘防治等方面的研究。E-mail:

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基于气体核密度的采空区煤自燃危险区域划分
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郭庆讲师 1 , 任万兴教授 **, 2 , 王圣程副教授 1 , 汪皓讲师 3
中国安全科学学报 | 安全工程技术 2025,35(12): 96-102
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中国安全科学学报 |安全工程技术 2025 , 35 (12) : 96 -102
基于气体核密度的采空区煤自燃危险区域划分
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郭庆讲师1 , 任万兴教授**, 2 , 王圣程副教授1, 汪皓讲师3
作者信息
  • 1徐州工程学院 土木学院,江苏 徐州 221018
  • 2中国矿业大学 安全学院,江苏 徐州 221116
  • 3上海海事大学 海洋科学与工程学院,上海 200135
通讯作者:
** 任万兴(1980—),男,河南封丘人,博士,教授,主要从事矿井灾害防治方面的研究。E-mail:
作者简介:

郭庆(1989—),男,河南永城人,博士,讲师,主要从事煤矿火灾防控、粉尘防治等方面的研究。E-mail:

Division of spontaneous combustion risk zones in coal mine gob areas using gas kernel density distribution
Qing GUO1 , Wanxing REN**, 2 , Shengcheng WANG1, Hao WANG3
Affiliations
  • 1School of Civil Engineering, Xuzhou University of Technology, Xuzhou Jiangsu 221018, China
  • 2School of Safety Engineering, China University of Mining and Technology, Xuzhou Jiangsu 221116, China
  • 3College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 200135, China
出版时间: 2025-12-28 doi: 10.16265/j.cnki.issn1003-3033.2025.12.1445
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为预防采空区煤自燃灾害,精准划分采空区煤自燃危险区域,通过统计分析现场采空区CO和O2体积分数,得到气体体积分数随采空区长度的变化特征,确定煤自燃预警临界值范围,并提出基于气体体积分数核密度的采空区煤自燃危险区域划分方法。结果表明:采空区O2体积分数符合线性变化且具有阶段性,拐点前的变化速率小于拐点后的变化速率;CO体积分数符合二次多项式变化特征;CO和O2体积分数的核密度随着采空区长度的增加而降低,其最高核密度分布范围分别为0~10 m和0~30 m;拐点前O2体积分数更加稳定,拐点后O2体积分数波动性更大,拐点前后O2体积分数的上、下可接受区间平均值分别为3.3%和6.3%;通过核密度划分煤自燃危险区域的CO和O2体积分数临界值为0.009%和15.1%,将采空区划分为安全、潜在危险和危险3个危险等级4个象限。

煤自燃  /  采空区  /  危险区域  /  核密度  /  统计学特征

To prevent coal spontaneous combustion disasters in the gob area and precisely delineate hazardous zones, the variation patterns of CO and O2 volume fractions along the gob length were statistically analyzed based on field measurements. Critical warning threshold ranges for spontaneous combustion were established and a gob hazard zoning method based on gas volume fraction kernel density was proposed. The results demonstrate that O2 volume fraction exhibits a linear variation with distinct stages, and the variation rate before the inflection point is lower than that after the point. The CO volume fraction follows a quadratic polynomial variation. The kernel densities of both CO and O2 volume fractions decrease with increasing gob length. Their highest kernel density distributions occur within 0-10m and 0-30m, respectively. O2 volume fraction is more stable before the inflection point but exhibits greater fluctuation afterward. The average upper and lower acceptable limits for O2 volume fraction before and after the inflection point are 3.3% and 6.3%, respectively. The critical CO and O2 volume fraction values for hazard zoning based on kernel density are 0.009% and 15.1%, which divides the gob area into four quadrants and three risk levels (safe, potentially hazardous, and hazardous).

coal spontaneous combustion  /  gob hazardous zone  /  coal fire early warning  /  kernel density  /  statistical characteristics
郭庆讲师, 任万兴教授, 王圣程副教授, 汪皓讲师. 基于气体核密度的采空区煤自燃危险区域划分. 中国安全科学学报, 2025 , 35 (12) : 96 -102 . DOI: 10.16265/j.cnki.issn1003-3033.2025.12.1445
Qing GUO, Wanxing REN, Shengcheng WANG, Hao WANG. Division of spontaneous combustion risk zones in coal mine gob areas using gas kernel density distribution[J]. China Safety Science Journal, 2025 , 35 (12) : 96 -102 . DOI: 10.16265/j.cnki.issn1003-3033.2025.12.1445
  • 国家自然科学基金资助(52404230)
  • 国家重点研发计划项目(2022YFC3004701)
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2025年第35卷第12期
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doi: 10.16265/j.cnki.issn1003-3033.2025.12.1445
  • 接收时间:2025-05-21
  • 首发时间:2026-07-09
  • 出版时间:2025-12-28
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  • 收稿日期:2025-05-21
  • 修回日期:2025-08-05
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国家自然科学基金资助(52404230)
国家重点研发计划项目(2022YFC3004701)
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    1徐州工程学院 土木学院,江苏 徐州 221018
    2中国矿业大学 安全学院,江苏 徐州 221116
    3上海海事大学 海洋科学与工程学院,上海 200135

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** 任万兴(1980—),男,河南封丘人,博士,教授,主要从事矿井灾害防治方面的研究。E-mail:
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2种不同金属材料的力学参数

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Genus
种数
Number of
species
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species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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