How to deal with coal mine permeability, and how terrible coal mine permeability is

Preventive measures should be taken before the occurrence of water penetration accidents in coal mines, and underground operators should understand and do a good job of self-rescue measures after the occurrence of accidents, and the enterprise or the rescue party should organize rescue work to deal with water disasters in a timely manner and save the trapped personnel. The following are some of the rescue measures and technical measures for mine water treatment provided by Beijing Hengxiang Hongye after water permeation.

First, organizational measures.

1) Educate underground workers to be familiar with the permeability symbol, and report to the staff on duty immediately when the permeability symbol is found, and report to the supervisor and leader.

2) Organize special personnel to observe the water exploration point or water site day by day, and record the changes, make analysis and comparison, if there is obvious change, shall not continue the operation.

3. When necessary, organize a professional water exploration team to carry out water exploration work, and directly lead by the mine manager, formulate a water exploration system, and earnestly implement the principle of symbolic exploration.

4. Conduct a detailed investigation of the old air within the scope of the well field, and draw the survey data on the comparison map between the ground and the downhole, mark the distribution range of the old air and the amount of water in detail, and carefully draw the warning line of the old air. At the same time, it is necessary to carefully verify the relevant information.

Second, technical measures:

1) Sectional downward water exploration method: water exploration and release is the most important measure to eliminate the threat of water hazards. Because this method is not only suitable for the old empty water with low head, but also suitable for the stagnant water with high head, and the method of discharging it into parts is adopted, if the stagnant water with a high head is treated by the method of "end bottom", the danger will be greatly increased.

Therefore, the "segmented downward water exploration method" is used to divide the accumulated water of the high head into several sections, and explore and release them sequentially from top to bottom.

2) The arrangement of the boreholes and the determination of the number of boreholes. When the workplace is found to be permeable and decides to explore water, the first problem to be solved is how to arrange the drill holes and how to determine the number of drill holes. To solve these problems, it must be determined according to the specific conditions such as the thickness of the coal seam, the size of the dip angle, the relationship between the roadway and the roof and the floor whether the roadway is flat or up and down the hill and the size of the section.

3) Master the safety lead distance. This is mainly to find out the thickness of the coal wall that was broken through from the past water penetration incidents, the height of the water head that broke through the coal wall at that time, and the coal quality. Refer to these conditions to specify the lead distance of the water exploration work.

4) Water release problem: All preparations for water release should be made when carrying out water exploration. Only after the stagnant water is released can the danger of water hazards be completely removed, the mining area can be expanded, and more coal can be mined.

If the situation of the water to be discharged has been clearly investigated, the discharge pipe should be connected at an appropriate place in the waterway as soon as possible.

Through the combination of organizational and technical measures, the prevention of mine permeability will definitely have a good effect, nip the mine permeability in the bud, and give miners a safe production environment in the mine.

Coal mine permeability is terrifying. And thisCoal mine permeability is an accident caused by digging through the wall of the hole to connect to the groundwater or the abandoned tunnel of stagnant water when mining coal in the underground tunnel of the coal mine.

When coal miners are working underground, they should learn to save themselves when the coal mine is flooded. In addition, when the on-site personnel are trapped by the water gushing and cannot exit, they should quickly enter the pre-built evacuation chamber for evacuation, or choose a suitable location to quickly build a temporary evacuation chamber to evacuate.

Introduction to China's Coal Mines:

1. Datong Coal Mine: In the northern part of Shanxi Province, it has large reserves and many mineable coal seams, with an average thickness of 30 40 meters. Low ash content, less sulfur and phosphorus impurities, calorific value.

High, and the coal seam is stable, easy to mine. It is the largest high-quality thermal coal in China.

**Base. 2. Shenfu Coalfield: Accounting for 15% of the country's proven reserves, it is equivalent to 50 Datong mining areas, 100 Fushun mining areas, and the Donbas coalfields in Russia.

and the Kuzbass coalfield, the Ruhr coalfield in Germany, the Bode River coalfield and the Appalachian coalfield in the United States, and the Silesian coalfield in Poland.

The coalfield is also known as the world's seven largest coalfields. The Daliuta Coal Mine was put into operation in 1996. The discovery of the Shenfu coalfield was a major discovery in China in the eighties of the 20 th century.

3. Huolinhe Coal Mine: Geological structure of Horqin Oilfield and Daqing and Liaohe River.

The Fuyu Oilfield is similar, and the city's oil prospect reserves are about 800 million tons. Tongliao City.

There are abundant non-ferrous metal and non-metallic mineral deposits buried in the territory, and now there are more than 10 metal mines such as iron, zinc, tungsten, copper and more than 30 ore sites.