Accident case analysis: one question per Monday (14). +3 wealth for participation, plus an additional 1–14 wealth for correct answers

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At 4:00 on November 29, 2011, the cage in the blind vertical shaft of roadway 390 at Mine A experienced a jamming fault while lifting ore; the cage was damaged and got stuck at a distance of 2.5 meters from the shaft mouth. The crane operator on duty, Person A, immediately ascended to the surface to report the incident to the mine manager, Person B, and the maintenance worker, Person C, who then descended into the shaft to carry out repairs. Without taking any protective measures, Bing cut and welded the cage corners and shaft shoring three times, with the cutting and welding work concluding at 7 o’clock. Subsequently, B and C climbed out of the well and returned to the surface. 　　At 7:29 that day, A noticed something unusual with the wire rope used to lift the cage in the winch room; he went to the shaft mouth to take a look and found that a fire had broken out in the blind shaft. He immediately returned to the winch room and turned off the power switch that supplied electricity to the lower levels of the shaft. And immediately ascend the shaft to report to B and C. Subsequently, A and C went down the shaft together. When they reached level 390, there was heavy smoke and visibility was less than 5 meters. A and C continued forward until they reached a point about 300 meters away from the shaft where the fire had started; they were unable to go any further, so they returned to the surface to report to B. B immediately called the police, requested assistance from the mine rescue team, and activated the emergency response plan for Iron Mine A. 　　As of 10:00 on November 27, it was confirmed that a total of 122 people were trapped underground; 52 of them were rescued by the rescue team, while 70 died. Among the victims were 61 miners from 4 nearby iron mines. 　　The accident investigation revealed that Mine A and Zhou Da’s 4 other iron mines were mined through interconnected tunnels; the underground passages and unbackfilled voids were connected to one another. None of these mines had an independent mine ventilation system, and their safety exits and signs did not meet safety standards. 　　The accident investigation team determined that the direct cause of the incident was that, during cutting and welding operations, the hot metal fragments and weld slag resulting from these activities fell on the brambles used to line the shaft, causing the brambles to catch fire. This in turn ignited the combustible materials in the wooden supports of the shaft, leading to the fire. The economic losses resulting from this accident include: 95.23 million yuan in expenses incurred due to casualties, 30.52 million yuan for cleanup efforts, 18.50 million yuan in property damage, 5.80 million yuan in losses due to production shutdowns, and 50,000 yuan in costs associated with addressing environmental pollution. Answer the following questions based on the above description (multiple-choice). 1. According to the \"Classification of Fires\" (GB/T4968 — 2008), the type of fire that occurred in the blind shaft of Mine A belongs to (　　). A. Class A fire B. Class B fire C. Class C fire D. Class D fire E. Class E fire 2. When carrying out cutting and welding operations in the blind shaft of Level 390 in Mine A, which permit is required? (　　) A. Permit for working in confined spaces B. Permit for working on live electrical equipment C. Permit for hot work D. Permit for working in high-temperature environments E. Permit for working in humid conditions 3. The direct economic loss resulting from this accident was ( ) ten thousand yuan. 　　A. 8523 　　B. 12575 　　C. 14425 　 D. 15010 　　E. 15010 4. According to the “Regulations on the Reporting, Investigation, and Handling of Work Safety Accidents” (State Council Order No. 493), regarding the investigation and handling of this accident, which of the following statements are correct? (　　) 　　A. The State Council may authorize the **Work Safety Supervision and Administration Administration to organize an accident investigation team to conduct the investigation. 　　B. The provincial people’s government where Mine A is located may authorize its work safety supervision and administration department to organize an accident investigation team to conduct the investigation. 　　C. The Fire Bureau of the Ministry of Public Security may organize the investigation. 　　D. The composition of the accident investigation team should follow the principles of simplicity and efficiency. 　　E. Employees of Mine A or the union of Mine A should be included in the accident investigation. 5. The indirect causes of this accident include (　　) 　　A. Insufficient safety training for workers. 　　B. Delayed reporting of the accident and delayed rescue efforts. 　　C. Lack of safety management systems. 　　D. Failure to enroll in work-related injury insurance as required. 　　E. Failure to obtain the necessary work safety permits as required. 6. In this accident, when Person A discovered a fire in the blind shaft, the emergency measures that should have been taken included (　　) 　　A. Attempting to reverse the airflow in the blind shaft. 　　B. Trying to increase the wind speed in the blind shaft. 　　C. Using a fire extinguisher to put out the fire; if that fails, evacuating immediately. 　　D. Reporting the fire to the control room of Mine A. 7. Based on the circumstances of the accident, the aspects of Mine A’s emergency management that need improvement include (　　) 　　A. Emergency plans for accidents such as mine fires. 　　B. Equipping workers who go underground with self-rescue equipment. 　　C. Authorizing Manager B to handle mine fire incidents entirely through written instructions. 　　D. Work safety liability insurance for high-risk industries. 　　E. Mine communication systems and safety signage. Answers 1. According to the “Classification of Fires” (GB/T4968 – 2008), the type of fire that occurred in the blind shaft of Mine A belongs to (　A　) 　　A. Class A fire 　　B. Class B fire 　　C. Class C fire 　　D. Class D fire 　　E. Class E fire 　　According to the “Classification of Fires” (GB/T4968 – 2008), fires are classified into seven categories: A, B, C, D, E, F, and K, based on the type of combustible material and its burning characteristics. 　　Class A fire: refers to fires involving solid materials. This substance usually has the properties of organic matter and generally produces hot embers when burned. Such as fires involving wood, coal, cotton, wool, linen, paper, etc. 　　Class B fires: refer to fires involving liquids or meltable solid substances. Fires involving kerosene, diesel, crude oil, methanol, ethanol, asphalt, paraffin, etc. 　　Class C fire: refers to gas fires. Such as fires involving gas, natural gas, methane, ethane, propane, hydrogen, etc. 　　Class D fire: refers to fires involving metals. Such as fires involving potassium, sodium, magnesium, aluminum-magnesium alloys, etc. 　　Class E fire: Fire involving electricity. A fire in which an object burns due to being charged. 　　Class F fire: Fires involving cooking materials in cooking appliances (such as animal and vegetable fats). 　　Class K fire: Fires involving cooking oils. Generally, the average combustion rate of cooking oil is higher than that of hydrocarbon oils. Compared to other types of liquid fires, cooking oil fires are difficult to extinguish; due to its many behaviors that differ from those of hydrocarbon oil fires, it is classified as a separate category of fire. Description of this fire: It caused the bamboo fences to catch fire, which in turn ignited the combustible materials in the wooden supports around the shaft; the burning of wood constitutes a Class A fire. 2. When carrying out cutting and welding operations in the blind vertical shaft of the 390-meter-long tunnel at Mine A, the permit that needs to be obtained is (C). A. Permit for working in confined spaces B. Permit for working on live electrical circuits C. Permit for hot work D. Permit for working in high-temperature environments E. Permit for working in humid conditions 3. The direct economic loss resulting from this accident was (C) million yuan. 　　A. 8523 　　B. 12575 　　C. 14425 　 D. 15010 　　E. 15010 Basic definition: Economic losses due to casualties refer to all economic losses incurred as a result of casualties among enterprise employees during the labor production process, including both direct and indirect economic losses. 2 Direct economic losses: refer to the costs incurred due to casualties resulting from an accident and the expenses related to aftermath handling, as well as the value of the damaged property. 3. Indirect economic losses: Refer to the value of losses resulting from reduced output due to the accident, damage to resources, and other losses caused by the impact of the accident.
Scope of calculation for direct economic losses:
1. Costs incurred as a result of casualties:
① Medical expenses (including nursing costs)
② Funeral and compensation expenses
③ Grants and relief funds
④ Wages lost due to suspension of work
2. Costs related to aftermath handling:
① Administrative costs associated with dealing with the accident
② Costs for emergency rescue at the scene
③ Costs for cleaning up the site
④ Fines and compensation related to the accident
3. Value of property losses:
① Value of losses to fixed assets
② Value of losses to current assets
Scope of calculation for indirect economic losses:
1. Value of losses due to suspension or reduction in production
2. Value of lost working time (Value of lost working time = Number of workdays lost by the affected individuals × Average daily net output per employee for the entire year)
3. Value of resource losses
4. Costs associated with addressing environmental pollution
5. Costs for training new employees
6. Other types of losses
Therefore, the direct economic losses resulting from this accident are: 9523 + 3052 + 1850 = 14425.
4. According to the “Regulations on the Reporting, Investigation, and Handling of Production Safety Accidents” (State Council Order No. 493), regarding the investigation and handling of this accident, which of the following statements are correct? (AD)
A. The State Council may authorize the **General Administration of Work Safety to organize an accident investigation team.
B. The provincial people’s government where Mine A is located may authorize its work safety supervision department to organize an accident investigation team.
C. The Fire Department under the Ministry of Public Security can organize the investigation.
D. The composition of the accident investigation team should follow the principles of simplicity and efficiency.
E. Employees from Mine A or the union representing those employees should be included in the accident investigation team.
Article 19: In cases of particularly serious accidents, the State Council or relevant departments authorized by the State Council shall organize an accident investigation team to conduct the investigation. Major accidents, significant accidents, and ordinary accidents are investigated respectively by the provincial people’s government where the accident occurred, the municipal people’s government at the district level, and the county-level people’s government. Provincial people’s **congresses, people’s **congresses of cities divided into districts, and county-level people’s **congresses can directly organize accident investigation teams to conduct investigations, or they can authorize or delegate relevant departments to organize such teams for the purpose of investigating accidents. Article 22: The composition of the accident investigation team shall follow the principles of simplicity and efficiency. Depending on the specific circumstances of the accident, the accident investigation team is composed of representatives from the relevant people’s authorities, work safety supervision and management departments, departments responsible for work safety supervision and management, supervision agencies, public security organs, and trade unions; the People’s Procuratorate shall also be invited to send representatives to participate. The accident investigation team may hire relevant experts to participate in the investigation. 5. The indirect causes of this accident include (　AC　). A. Insufficient safety training for workers. B. Delayed reporting of the accident and rescue efforts. C. Lack of safety management systems. D. Failure to enroll in work-related injury insurance as required. E. Failure to obtain the necessary permits for safe production as required. 6. In this accident, when Person A discovered a fire in the blind shaft, the emergency measures that should have been taken included (　C,D　). A. Attempting to reverse the airflow in the blind shaft. B. Trying to increase the wind speed in the blind shaft. C. Using a fire extinguisher to put out the fire; if that failed, evacuating immediately. D. Reporting the fire to the dispatch room of Mine A. 7. Based on the circumstances of this accident, the areas in which Mine A’s emergency management needs improvement include (　A,E　). A. Emergency plans for incidents such as mine fires. B. Equipping workers who work underground with self-rescue equipment. C. Granting Manager B full authority to handle mine fire incidents through written instructions. D. Work-related injury insurance for high-risk industries. E. Mine communication systems and safety signage