Coal mine safety is the lifeline of the coal industry. To help employees receive effective safety training and警示教育, the Safety Department of Gengban Coal Mine regularly organizes safety training sessions in phases and batches, covering topics such as the fundamentals of laws and regulations, core safety knowledge, and case studies of typical accidents (for警示教育 purposes).

  I. Laws, Regulations, and Red-Line Awareness

When conducting safety training, it is essential to first clarify the legal boundaries and industry standards.

The Regulations on Coal Mine Safety Production clearly stipulate the safety production requirements that coal mining enterprises must meet, as well as the safety responsibilities of the principal person in charge (the mine manager).

“Coal Mine Safety Regulations”: This is the “constitution” of coal mining operations, covering operational standards for all stages, including mining, ventilation, mechanical and electrical systems, and transportation.

“The Five‑Position Mine Manager” and “Five‑Position Technical Personnel”: Emphasizes the mandatory staffing of safety production management positions, including the mine manager and the chief engineer.

“Three Violations” Rectification: Improper Command, Unsafe Operations, and Violation of Labor Discipline

  Core slogans: “Safety first, prevention foremost, comprehensive management”; “Hidden dangers are accidents; prevention and control are better than disaster relief.”

II. The Five Major Natural Disasters in Coal Mines and Their Prevention and Control

The core technical content of safety education focuses on intensive training in “one ventilation and three prevention” measures and roof‑control management.

1.  Gas Control (The Number-One Killer)

Hazard: Flammable and explosive; high concentrations may cause asphyxiation.

Preventive and control measures:

Ventilation: Ensure an adequate supply of fresh air underground to dilute and reduce the concentration of methane.

Monitoring: Use gas sensors and strictly enforce the “three‑inspection before blasting” and “three‑person interlocking blasting” procedures.

Power outage: If gas levels exceed the permissible limit, operations must be immediately halted, personnel evacuated, and the power supply disconnected.

2.  Mine fire

Internal causes of fire: spontaneous combustion of coal, particularly in goaf areas.

External causes of fire: electrical equipment short circuits and unauthorized hot work.

Response: Establish fire prevention and suppression systems, equip with firefighting equipment, and familiarize yourself with evacuation routes.

3.  Mineral dust (coal dust)

Hazards: It can cause pneumoconiosis (an occupational disease), and high-concentration coal dust may explode when exposed to an ignition source.

Prevention and control: wet drilling, spray watering, flushing roadway walls, using water‑based mud, and wearing dust‑proof respirators.

4.  Water damage

Signs of water inflow: red staining, condensation, a drop in air temperature, the appearance of fog, increased seepage from the roof, the emergence of pressurized water flow, audible water sounds, and bulging of the floor, among others.

Prevention and control principles: “Prediction and forecasting, exploration–excavation separation, explore before excavating, treat before mining.”

5.  Roof accident

Hazards: Roof falls and rib spalls, which may result in personnel being buried or crushed.

Prevention and control: Strictly enforce the roof‑bolting and roof‑checking system, provide timely support, prohibit working with unsupported roofs, and conduct regular monitoring of roof pressure.

III. Analysis of Typical Accident Cases (Educational Warning)

Educating people through real-life cases—drawing “lessons from blood and tragedy”—is the most powerful way to resonate with them. Below are several classic cautionary themes:

Case study 1 : Gas explosion accident

Typical scenario: At a mining tunneling face, the local ventilation fan stops operating, leading to the accumulation of methane. Workers illegally perform live‑line maintenance on electrical equipment, generating an electric spark that triggers a methane explosion.

Lesson: Local ventilation fans must be kept running continuously (“three dedicated lines and two interlocks”); live‑working on electrical equipment is strictly prohibited; operations conducted when gas levels exceed the limit are an absolute red line.

Case study 2 : Water seepage incident

Typical scenario: The water exploration and drainage team engaged in fraudulent practices, failing to conduct exploration and drainage as specified in the design. During tunneling, they directly breached an old goaf containing accumulated water, causing a large volume of water to surge out instantaneously.

Lesson: The water‑drainage and exploration system must be strictly enforced; it is better to err on the side of caution—preparing for nine false alarms than to overlook a single potential hazard. Blind excavation under unclear hydrogeological conditions is strictly prohibited.

Case study 3 : Transportation accident

Typical scenario: During inclined‑shaft hoisting, the “no pedestrians when trains are running; no trains when pedestrians are present” rule was not strictly enforced, and personnel illegally crossed the wire rope or track, resulting in being struck and killed by a runaway hoisting car.

Lesson: Strictly enforce transportation management regulations, improve anti‑runaway vehicle devices, and strengthen training on compliance with rules and discipline for employees.

IV. Recommendations for Safety Education Formats and Materials

To ensure that safety education is not merely a formality, it is recommended to adopt a combination of diverse approaches:

1.  “Three-Minute” Pre-Entry Safety Briefing

Content: Daily question, risk notification, and mental status screening.

Materials: Short safety rhymes, job descriptions, and finger‑pointing verbal instructions.

2.  The “Seven-Step Method” for Pre-Shift Meetings

Roll call, plan summary, hazard identification, procedural training, accountability implementation, key‑point emphasis, and safety oath.

3.  Watch the cautionary education film.

We recommend watching the “Black Three Minutes: A Moment Between Life and Death” series of short films released by the National Administration of Mine Safety, as well as the annual national coal mine accident warning videos.

4.  Interactive teaching

VR/AR Experience: Simulate underground disaster scenarios to allow employees to practice evacuation procedures.

Practical drills: self-rescuer blind‑fit competition and fire‑fighting equipment‑use exercise.

Attachment: Some photos from the training session