Gravel rolled down the nearly vertical limestone wall, and a yellow excavator worked on the slope without steps, with a steep cliff tens of meters high below the track. Not far from the cliff, processing, hoisting and other operations are crowded in the same area, there are no signs and safety signs in the operation area, nor can we see the coordinated management personnel, vehicles, machinery and workers crisscross.
the mine should adopt top-down disposal layer by layer, leaving a safety platform for each disposal layer, descending step by step like terraces, and controlling the slope inclination angle of each step within 70 degrees.
However, what the inspection team saw at the scene was another scene: the entire high and steep slope directly excavated the platform from the middle, forming two nearly vertical high and steep slopes at the upper and lower parts, with a slope angle of more than 80 degrees. Drilling rigs and excavators were working below the upper high and steep slope and at the front edge of the lower slope, and personnel and equipment were threatened by double rockfalls. No protective measures and warning signs were set up on the site.
Experts pointed out sharply that the treatment of two high and steep slopes in the industrial site of the mine should be based on the special treatment plan for the problems left over by history, and the current construction has inherent safety defects.
When the reporter asked if he could check the real-time data of the slope monitoring equipment, the security officer paused for a moment and said: "The data is on the mobile phone. The person in charge of monitoring has a rest today. I can't see it." When asked about the practical operation of the monitoring system and the contingency plan in flood season, he hesitated and could not give a clear answer.
A safety officer, only by the naked eye patrol, a single person covers multiple working faces; monitoring equipment can not be accessed in real time due to the rest of managers-this is the current situation of the mine slope safety management that the reporter saw at the scene.
Experts said that simple manual inspection can only find more obvious cracking hazards, and it is difficult to predict the hidden landslide risk; if there is no regular monitoring and analysis of monitoring data, it is impossible to predict the landslide risk, and it can not play an early warning role at critical moments.
In the processing area, a gas welder is working, oxygen cylinders and acetylene cylinders are only 1 to 2 meters away from their working position, and the distance between cylinders does not meet the requirements of the specifications. When the inspection team came forward and asked him to show his special operation certificate, the worker did not respond, put down the welding tool and turned away, and never returned. The enterprise also failed to provide the gas welding operation certificate, and the loopholes in site safety management were prominent.
In addition to the construction problems of the industrial site, the inspection team also found a number of hidden dangers in the mining site: the ground of the mountaintop drilling rig site was uneven, the drilling rig legs did not fall on the stable base surface, and the safety distance from the slope edge was insufficient; On one side of the mining area, the design change has been completed, but the acceptance of safety facilities has not been carried out, no warning line and warning signs have been set in the area, and there are uncleaned pumice scattered on the slope; on the other side of the mining area, there are also problems of uncleaned pumice and unprotected slope at the end of the slope and the boundary of the stope.
inspection team asked the person in charge of the site whether the enterprise had carried out stability analysis and formulated a special treatment plan for the same type of natural slope after the accident. The other side first tried to confuse that "the status quo evaluation" and "is being rectified according to the proposal", and finally had to admit that the specific plan has not yet been formulated, and the relevant governance work has not started substantially. The
inspection team noted that the safety status evaluation report issued by the third party entrusted by the enterprise concluded that "it has the conditions for safe production". However, the report lacks technical solutions to key issues such as how to monitor the slope after the accident, how to reinforce it and how to prevent similar accidents, which is a dead letter.
"Construction and production are mixed together, and on-site management is chaotic." Experts from the inspection team pointed out sternly that the enterprise claimed that it was "in the process of rectification", but the risk always existed before the hidden danger was eliminated, and that "in the process of rectification" could not be used as a reason for risky operation. "There was just a fatal accident last year, and the lessons should really be learned."
Hidden dangers will be handed over to local closed-loop rectification and timely clearance of
Baise City, with 203 non-coal mines under supervision, including 157 metal and non-metal mines. Local regulatory authorities admit that the task of mine supervision is heavy, professional supervision is relatively limited, safety supervision can not keep up with, and some unexpected and unmanageable problems will occur.
From 2022 to 2023, Guangxi has carried out special rectification for the mining problem of "half a mountain and one wall"; it will be deployed again in 2025 to prevent the rebound of such problems. However, Zhengchang Mining Yanfeishan Limestone Mine obtained a mining license in 2023, which should have strictly implemented the requirements of bench mining in the design and construction stage, but there are still major loopholes in slope management, especially in the case of fatal accidents in enterprises, but there is still not enough vigilance, which exposes the deep-seated problems of enterprises such as emphasizing production over safety and inadequate territorial supervision.
Next, the inspection team will hand over the hidden problems found in the on-site investigation to the relevant parties in Guangxi in accordance with the procedures, requiring serious investigation and punishment in accordance with the law and regulations, and promoting the rectification and landing. Under
the slope, there are workers working and factories under construction. When will the governance plan be implemented? The answer should not wait for another ten months.
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