An Approach for Understanding and Promoting Coal Mine Safety by Exploring Coal Mine Risk Network

Table 3

Accident chain analysis.

Number	Accident chains
1	Smoking → naked light → fire → suffocation
2	Unreasonable blasting → gas concentration exceeding limit → gas burning → fire
3	Air blower failure → inadequate ventilation → gas concentration exceeding limit → gas burning → fire → gas explosion
4	Electric leakage → gas burning → gas explosion
5	Coal and gas outburst → suffocation
6	Electrical failures → air blower failure → inadequate ventilation → Gas concentration exceeding limit → fire
7	Violation operation → inadequate ventilation → gas concentration exceeding limit → gas explosion
8	Inadequate ventilation → gas concentration exceeding limit → suffocation
9	Violation operation → suffocation
10	Management negligence → violation weld → gas explosion
11	Management negligence → inadequate ventilation → suffocation
12	Management negligence → unreasonable blasting → roof collapse → gas burning
13	Mechanical friction → spark → gas explosion
14	Air blower failure → inadequate ventilation → gas concentration exceeding limit → gas explosion
15	Electric spark → gas burning → fire → gas explosion
16	Management negligence → violation operation → suffocation
17	Roof collapse → mechanical friction → spark → gas explosion
18	Inadequate ventilation → gas concentration exceeding limit → gas explosion
19	Unreasonable technique scheme → geostress concentration → coal and gas outburst → suffocation
20	Imperfect regulation → management negligence → unreasonable blasting → coal and gas outburst → suffocation
21	Management negligence → poor maintenance → electrical device failure → inadequate ventilation → gas concentration exceeding limit → gas explosion
22	Unreasonable blasting → coal dust explosion → carbon monoxide poisoning
23	Imperfect regulation → management negligence → electric spark → coal dust explosion
24	Management negligence → ruptured steel rope → mechanical friction → spark → gas explosion
25	Ruptured steel rope → mechanical friction → spark → coal dust explosion
26	Unreasonable blasting → roof collapse → ventilation failure → coal dust explosion → struck-by
27	Broken steel rope → sliding train → collision → spark → coal dust explosion
28	Violation operation → unreasonable blasting → naked light → gas burning → coal dust explosion
29	Electric spark → naked light → gas burning → fire → carbon monoxide poisoning
30	Electrical failures → naked light → fire → roof collapse
31	Cable short circuit → electric spark → fire → carbon monoxide poisoning
32	Electrical failures → cable short circuit → electric spark → fire → carbon monoxide poisoning
33	Violation operation → pressure fan failure → over-temperature → spark → fire → carbon monoxide poisoning
34	Inadequate training → violation weld → naked light → fire → carbon monoxide poisoning
35	Management negligence → electric spark → naked light → fire → roof collapse
36	Management negligence → conveyor failure → over-temperature → naked light → fire → suffocation
37	Management negligence → electrical failures → air blower failure → gas concentration exceeding limit → carbon monoxide poisoning
38	Inadequate training → unreasonable blasting → penetration into goaf → water leaking
39	Violation operation → penetration into goaf → water leaking
40	Management negligence → unreasonable blasting → penetration into goaf → water leaking
41	Unreasonable blasting → gas concentration exceeding limit
	Unreasonable blasting → naked light → gas burning → gas explosion
42	Inadequate geological prospecting → unreasonable blasting → penetration into goaf → water leaking
43	Inadequate geological prospecting → penetration into goaf → water leaking
44	Penetration into goaf → water leaking
45	Management negligence → violation operation → water leaking
46	Management negligence → stagnant water → suffocation
47	Management negligence → violation operation → penetration into goaf → water leaking
48	Inadequate training → standing on conveyor belt → fall → mechanical injury
49	Management negligence → ruptured steel rope → falling of cage
50	Broken steel rope → sliding train → train derailment → collision
51	Inadequate training → broken steel rope → mechanical injury
52	Unscientific design → faulty track → train derailment → collision
53	Train overload → brake failure → sliding train → train derailment → collision
54	Management negligence → poor maintenance → mechanical injury
55	Violation operation → electrical failures → electric shock
56	Management negligence → violation operation → electric shock
57	Cable short circuit → electric shock
58	Management negligence → inadequate training → fall → mechanical injury
59	Stray current → gas explosion
60	Management negligence → electric leakage → unreasonable blasting
61	Unscientific design → poor tunnel support → roof collapse
62	Float coal → tunnel support failure → roof collapse
63	Train derailment → collision → tunnel support failure → roof collapse
64	Optional withdrawal of pillar → roof collapse → struck-by
65	Inadequate geological prospecting → neglect of geostress concentration → roof collapse
66	Neglect of geostress concentration → roof separation → roof collapse
67	Poor tunnel support → flying rock → struck-by
68	Unreasonable blasting → tunnel support failure → roof collapse
69	Unscientific design → poor tunnel support → roof collapse → flying rock
70	Violation operation → roof collapse
71	Unreasonable technique scheme → tunnel support failure → roof separation → roof collapse → struck-by
72	Unreasonable technique scheme → unreasonable blasting → roof separation → roof collapse
73	Poor tunnel support → roof collapse → flying rock
74	Weakness of safe consciousness → standing on conveyor belt → fall → mechanical injury
75	Roof collapse → penetration into goaf → carbon monoxide poisoning
76	Air blower failure → inadequate ventilation → gas concentration exceeding limit
	Electrical failures → cable short circuit → electric spark → fire
77	Inadequate geological prospecting → neglect of geostress concentration → water leaking
78	Weakness of safe consciousness → unreasonable blasting → water leaking
79	Management negligence → spontaneous combustion of dynamite → dynamite explosion → roof collapse
80	Transformer overload → cable short circuit → electric spark → fire
81	Sudden torrential rain storm → water leaking
82	Spontaneous combustion of coal seam → fire
83	Unreasonable blasting → naked light → fire
84	Violation operation → electric shock
85	Inadequate training → violation operation → mechanical injury
86	Unreasonable blasting → coal and gas outburst → gas explosion
87	Drilling blasting hole → spark → gas explosion
88	Violation blasting → naked light → gas explosion → struck-by
89	Miner’s lamp failure → electric spark → gas explosion
90	Unscientific design → inadequate ventilation → gas concentration exceeding limit
	Cable insulation failure → cable short circuit → electric spark → gas explosion
91	Smoking → naked light → gas explosion
92	Inadequate ventilation → gas concentration exceeding limit
	Illegal disassembly of miner’s miner’s lamp → electric spark → gas explosion
93	Defective geological condition → coal and gas outburst
	Electric locomotive failure → electric spark → gas explosion
94	Gas monitoring system failure → gas concentration exceeding limit → gas explosion
95	Lack of dedusting device → coal dust concentration exceeding limit → coal dust explosion
96	Violation blasting → collapse of coal bunker → coal dust concentration exceeding limit → coal dust explosion
97	Violation weld → conveyor belt burning → fire → suffocation
98	Sudden torrential rain storm → power cut → water pump failure → mine flooding
99	Power cut → ventilation failure → gas concentration exceeding limit
	Violation blasting → naked light → gas explosion
100	Violation blasting → poisonous gas leakage → poisoning
101	Severe vibration in coal cutting → coal and gas outburst
102	Explosion of electric switch → spark → gas explosion
103	Roof collapse → air blower failure → inadequate ventilation → gas concentration exceeding limit
	Cable short circuit → electric spark → fire
104	Metal crash → spark → gas explosion
105	Illegal restart → electric spark → gas explosion
106	Optional close of ventilation → gas concentration exceeding limit
	Illegal disassembly of miner’s miner’s lamp → electric spark → gas explosion
107	Severe vibration in anchor construction → coal and gas outburst
108	Broken steel rope → sliding train → cable short circuit → electric spark → coal dust explosion
109	Mechanical friction → spark → coal dust explosion
110	Management negligence → electric leakage → ignition of cable → fire → poisonous gas leakage → poisoning
111	Conveyor over-temperature → ignition of engine oil → spark → fire
112	Violation operation → water leaking
113	Wrong geologic survey → wrong holing-through → water leaking
114	Delay of support → roof separation → roof collapse
115	Pressure fan failure → ignition of engine oil → spark → fire
116	Unstable pillar → roof separation → roof collapse
117	Winch brake failure → falling object → struck-by → mechanical injury
118	Trip → fall → struck-by
119	Trip → mechanical injury
120	Collapse of support structure → roof collapse → struck-by
121	Drinking → fall → mechanical injury
122	Violation operation → steel rope bouncing → mechanical injury
123	Management negligence → no warning sign
	Flying rock → struck-by
124	Management negligence → no warning sign → entering danger zone → suffocation
125	Entering danger zone → flying rock → struck-by
126	Unreasonable dismantling of elevator → falling object → struck-by