Shanxi to wear coal mines to prevent and treat water hazards

10 types of coal mines will be suspended for production

Since last year, the coal mine accidents in Shanxi Province have increased and the proportion of the total accidents has increased. This has become the “first killer” of coal mine safety in Shanxi. On May 24, the Provincial Coal Industry Department issued the “Notice on Improving the Management Level of Water Base for Prevention and Control of Shanxi Coal Mines”. It will take measures to stop production and stop production for the 10 categories of coal mine water disaster prevention and control, and investigate relevant personnel for responsibility.

Last year, the number of deaths from coal mine safety production in the province was 78, and the death rate per million tons was 0.077, which was a good level in the country and even in the world. However, after decomposing 78 people's accidents, it was found that although the gas accidents in the coal mines have dropped, the proportion of coal mine water accidents has increased, accounting for one-third of the total number of coal mine accidents in the province, among which, the coal mines in the province have experienced more than three accidents. 70% to 80% of them are water damage accidents. Coal mine water disaster prevention has caused the attention of Shanxi's relevant departments.

In the future, all construction and production of coal mines in Shanxi Province will exist: the long-term prevention and control of the coal mines and the annual plans for the prevention and control of coal mines; the unclear or unclear leadership structure for the prevention and control of coal mines, the unclear division of responsibilities, and the lack of complete water control systems for major coal mines. Item leakage items (except “Coal Mine Prevention and Control Water Regulations”), lack of exploration and excavation separation system, safety confirmation transfer system, and other major systems; hydrogeological type classification report has not been compiled, exceeds 3 years, or 1 year after accident has not been re-determined. Types of hydrogeology, providing basic maps such as coal mine water filling maps that are false or inconsistent with actual conditions; the “three lines” (alert lines, water probing lines, and water lines) have not been implemented to manage ancient empty, old space, and take-home water; The professional technicians for water control and exploration and discharge of water are below the minimum configuration requirements stipulated in the documents of the provincial office; the capacity of the main drainage system cannot meet the requirements of the “Coal Mine Safety Regulations”; the drainage system of the mining area is not perfect for the work surface operation, and the main water storage tank is not put into use. The second phase of the construction project ahead of schedule, the water tank in the mining area has not been put into use for the construction working face; , Do not conduct inspection and discharge project acceptance, did not issue permission notices for excavation without authorization, falsely created exploration and discharge of water ledgers, acceptance orders, ahead of the safety distance is less than the provisions still risk boring, the threat of overlying or adjacent goaf product Water is not treated without approval and it is not equipped with a dedicated exploration and drilling rig; or non-dedicated exploration and drainage rigs such as coal-powered drills are used for exploration and release of water; pressure-opening mining wells are not zoned for safety, and the water conductivity of unstructured front faults and collapse columns is not determined. The quarrying and mining without authorization did not formulate a special water inrush prevention technical measure to carry out pressure operations; it did not formulate a strong rainfall period and the quarrying surface had the symptoms of flooding to withdraw the emergency plan for the downhole workers in a timely manner, and arbitrarily exploited and approved the waterproofing isolation pillar. Under the water body mining ten incline coal seam, without the approval of the provincial coal management authority under the surface of the water under the body of 10 kinds of situations such as mining, will all stop production and shutdown, and investigate relevant personnel responsibilities.

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