Research on causes of coal mine fire and explosion based on complex network

doi:10.16265/j.cnki.issn1003-3033.2023.01.0601

Abstract

Abstract:

In order to prevent or reduce the occurrence of coal mine fire and explosion accidents, excavate the key disaster-causing factors of coal mine fire and explosion, and clarify the mechanism of action between the causes, firstly, based on the domestic coal mine fire accident cases, 26 disaster-causing factors of coal mine fire and explosion were analyzed. Then, based on the complex network theory, the disaster-causing factor network of coal mine fire and explosion was constructed, and the network topology characteristic parameters such as degree centrality, clustering coefficient, and betweenness centrality were calculated to analyze the characteristics of the disaster-causing factors of coal mine fire and explosion. Finally, the risk index of coal mine fires causing chains were introduced to calculate the risk degree of different edges, the high-risk edge was excavated, and the chain-breaking measures were put forward. The results show that the network of key disaster-causing factors for coal mine fire and explosion has the characteristics of a small-world network, and the conversion path between causes is short. The key disaster-causing factors include workers' illegal operations, ventilation equipment failure, power failure, and supervisors' dereliction of duty. The most dangerous aspect is the failure of supervision personnel to perform their duties and the illegal operations by workers, followed by spontaneous coal combustion and high temperature radiation. Before the fire occurs, effective measures are taken to control the key nodes. Following the occurrence of the fire, the high-risk chain-breaking operation can achieve the effects of disaster prevention and mitigation while actively controlling the occurrence and development of coal mine explosion fire.

Key words: coal mine fire, explosion disaster causing factor, complex network, topological features, risk degree

YANG Yingliu, JIN Lianghai, SHAO Bo, CHEN Shu, JIANG Xin, CHEN Ying. Research on causes of coal mine fire and explosion based on complex network[J]. China Safety Science Journal, 2023, 33(1): 145-151.

Figures/Tables 9

Tab.1

Causes and casualties of representative accidents

地点	概况	地点	概况
贵州水城	矿灯起火,引爆瓦斯和煤尘,162人死亡	嫩草冲煤矿	矿灯失爆起火引爆瓦斯,12人死亡
新华区四矿	电缆短路起火引爆瓦斯,76人死亡	松林煤矿	停电风机产生火花引爆瓦斯,11人死亡
屯兰煤矿	风机开关爆炸瓦斯燃爆,74人死亡	田玉煤业	钢丝绳与耙斗车摩擦起火引爆瓦斯,11人死亡
李生文矿	气割掉落高温熔渣引发火灾,70人死亡	水井湾煤矿	矿灯失爆起火引爆瓦斯,10人死亡
肖家湾煤矿	绞车信号装置失爆引爆瓦斯,48人死亡	祖保煤矿	电缆短路起火引起煤尘爆炸,10人死亡
伊川煤矿	明火引爆瓦斯,44人死亡	永吉煤业	煤炭自然引瓦斯爆炸,10人死亡
私庄煤矿	违规使用风镐煤与瓦斯突出,43人死亡	大河边煤矿	电机内爆起火引爆瓦斯,9人死亡
宝马煤矿	电焊火花引起瓦斯燃爆,32人死亡	梁宝寺煤矿	电缆燃爆引发火灾,7人死亡
万宝煤矿	绞车配电盘产生火星引发火灾,30人死亡	大树煤矿	矿灯电缆短路产生火花引爆瓦斯,7人死亡
霞流冲煤矿	电器失爆起火引爆瓦斯,29人死亡	奋进煤矿	煤粉氧化自然引发火灾,6人死亡
巨源煤业	火工品起火引爆瓦斯,26人死亡	华龙煤业	手机爆炸引爆瓦斯,5人死亡
地点	概况	地点	概况
砚石台煤矿	瓦斯浓度超限遇明火,22人死亡	群力煤矿	引爆器起火引爆瓦斯,5人死亡
杏花煤矿	高温引燃煤体,22人死亡	土朱煤矿	吊椅与台阶摩擦起火引爆瓦斯,4人死亡
鸡西矿业	违规操作引发火灾,21人死亡	阜生煤业	托盘、锁具脱落摩擦起火,引爆瓦斯,4人死亡
百吉矿业	运煤车产生火花,引爆煤尘,21人死亡	株山冲煤矿	引爆器起火引爆瓦斯,4人死亡
吉盛煤矿	工字钢垮落撞击产生火花引爆瓦斯,20人死亡	常村煤矿	棚腿内错摩擦起火瓦斯燃烧,4人受伤
昌隆煤矿	瓦斯爆炸,18人死亡	厚信煤业	“裸爆”致高温引爆瓦斯,3人死亡
王庄煤矿	变电所起火,引燃煤体,17人死亡	桑树坪煤矿	煤粉与钻具产生高温煤体阴燃,3人死亡
八宝煤矿	漏风,煤炭自燃,引爆瓦斯,17人死亡	任楼煤矿	漏风煤炭自燃引瓦斯燃爆,3人死亡
兴利矿业	电焊引燃木板引发火灾,17人死亡	维新煤业	煤屑与铁矿摩擦高温,引燃煤屑和瓦斯,1人死亡
豫新煤业	明火,氧气与瓦斯浓度超限,引爆瓦斯,17人死亡	米村煤矿	磁力启动装置起火引爆瓦斯与煤尘,1人死亡
松藻煤矿	胶带与车辊摩擦起火引燃煤体,16人死亡	郭庄煤业	切割引起乙炔气燃爆,1人死亡
高坑煤矿	违规放炮引爆瓦斯,15人死亡,11人伤	余吾煤业	打火机照明引起瓦斯燃爆,2人伤
二亩沟煤业	爆破产生明火引爆瓦斯,15人死亡	夏店煤矿	违规放炮造成瓦斯燃烧
兴源煤矿	继电器高温起火引爆瓦斯,15人死亡	李阳煤业	供氧增大造成煤层自燃
湘峪煤矿	岩石滚落摩擦起火引爆瓦斯,14人死亡	余吾煤业	顶板来压造成瓦斯突出
红土田煤矿	违规放炮引爆瓦斯,14人死亡	隰东煤业	超前钻探揭露老空巷,造成瓦斯异常涌出
泰源煤矿	压风机电缆起火,引燃煤层,13人死亡	潞宁煤业	填充材料高温起火引燃煤体

Tab.1

Tab.2

Fig.1

Tab.3

Fig.2

Fig.3

Fig.4

Tab.4

Tab.5

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编号	致灾因子	编号	致灾因子	编号	致灾因子
S₁	工人违规操作	S₁₀	机械摩擦起火	S₁₉	停电
S₂	监管人员失职	S₁₁	煤屑与铁矿摩擦起火	S₂₀	煤炭自燃
S₃	安全培训不到位	S₁₂	矿石撞击火花	S₂₁	通风设备故障
S₄	浮煤堆积	S₁₃	电缆燃爆起火	S₂₂	火工品起火
S₅	气割掉落高温熔渣	S₁₄	电路短路起火	S₂₃	打火机明火
S₆	爆破起火	S₁₅	顶板来压	S₂₄	可燃物高温
S₇	打钻起火	S₁₆	漏风	S₂₅	高温辐射
S₈	放炮起火	S₁₇	瓦斯浓度超限	S₂₆	氧气含量增大
S₉	电焊火花	S₁₈	设备失爆	—	—

指标名称	指标值	指标名称	指标值
节点数/个	26	网络直径	3
连边数/条	60	聚类系数	0.186
平均度	2.308	平均路径长度	1.476
紧密度系数	0.092

边	B_ab	R_ab	边	B_ab	R_ab	边	B_ab	R_ab	边	B_ab	R_ab
(2,1)	13.50	100.58	(16,26)	4.00	5.63	(2,3)	1.50	1.49	(1,5)	3.35	0.65
(20,25)	4.00	30.86	(16,20)	2.50	5.06	(22,25)	1.00	1.38	(19,18)	1.33	0.53
(3,1)	15.00	18.49	(14,24)	1.25	4.65	(24,25)	1.00	1.38	(1,18)	3.10	0.43
(7,25)	1.01	11.46	(9,24)	1.25	4.39	(8,25)	2.10	1.38	(19,17)	1.00	0.25
(12,25)	1.00	10.93	(6,24)	1.25	4.30	(10,25)	1.10	1.31	(1,15)	6.00	0.20
(11,25)	1.00	10.80	(23,25)	2.43	3.37	(1,13)	3.35	1.27	(1,6)	3.35	0.19
(21,25)	1.33	10.28	(14,25)	1.10	3.09	(5,24)	1.25	1.22	(1,9)	3.35	0.18
(18,25)	1.43	9.31	(15,17)	4.00	2.75	(21,22)	2.00	1.00	(1,14)	3.35	0.18
(26,20)	3.00	9.00	(19,21)	3.33	2.53	(10,24)	1.25	0.99	(3,4)	2.00	0.17
(7,24)	1.25	8.66	(1,8)	3.35	1.97	(8,24)	2.25	0.98	(1,7)	3.35	0.09
(12,24)	1.00	7.24	(2,8)	3.00	1.76	(13,25)	1.10	0.87	(3,23)	1.00	0.09
(11,24)	1.00	7.16	(19,23)	1.33	1.74	(1,10)	3.35	0.82	(1,23)	1.60	0.07
(21,24)	2.00	6.00	(21,27)	1.00	1.69	(4,20)	1.33	0.76	(2,4)	2.00	0.07
(9,25)	1.10	5.82	(19,26)	2.00	1.65	(1,16)	3.10	0.69	(1,4)	1.50	0.06
(6,25)	1.10	5.69	(5,25)	1.10	1.62	(13,24)	1.00	0.65	(25,15)	1.10	0.05

边	断链措施
监管人员失职→工人违规操作	建立标准化安全作业流程,建立矿工行为奖惩机制
煤炭自燃→高温辐射	采煤面采用后退式开采,减少采煤工作面向采空区漏风,采煤工作面喷洒阻化剂,尽量出尽残煤减少采空区自燃煤源
安全培训不到位→工人违规操作	加强员工火灾安全教育和培训,落实安全培训考核
打钻起火→高温辐射	选择安全的排粉方式,钻具上安装“风、水”三通,施工人员携带自救器,施工钻孔回风侧2 m内设置一氧化碳传感器
矿石撞击火花→高温辐射	采掘机械要避免切割岩石,遇见矸要先放炮松动再通过采掘机械
煤屑与铁矿摩擦起火→高温辐射	喷洒阻燃剂,及时清理堆积浮煤
通风设备故障→高温辐射	加强日常的检查和维护,发现破损和有针眼漏风风筒,及时处理
设备失爆→高温辐射	定期对设备进行检查及维护,以及确保安全供电
氧气含量增大→煤炭自燃	设置氧气含量采集装置,实时监控矿井氧气含量,发现异常立即处理
打钻起火→可燃物高温起火	选择安全的排粉方式,钻具上安装“风、水三通”,施工人员携带自救器,施工钻孔回风侧2 m内设置一氧化碳传感器

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