Beijing has fully entered the era of "no coal mines". 23 Oct 2020

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The closure of Datai Coal Mine, the last state-owned coal mine in Tougou, has recently passed acceptance. This marks Mentougou's complete bid farewell to thousands of years of coal mining history, and Beijing has entered the era of "no coal mines".

The closure of Datai Coal Mine, the last state-owned coal mine in Tougou, has recently passed acceptance. This marks Mentougou's complete bid farewell to thousands of years of coal mining history, and Beijing has entered the era of "no coal mines". 

 

In recent years, Mentougou District has assumed a new positioning function as an ecological conservation area in accordance with the requirements for relieving non-capital functions. Withdrawal from the resource-mining industry, large and small coal mines have ceased production.

 

Long-term mining has resulted in bare rock and even hollowed out the mountain. In recent years, in response to the environmental damage caused by mining, Mentougou District has carried out water and soil erosion control and other work. Continue to increase the efforts to restore the ecological restoration of abandoned mines and restore alpine vegetation.

 

"Through the combination of slope improvement engineering and high-order aggregate spraying technology, the original barren hills with exposed rock masses are transformed into forest land for growing shrubs and trees. This can effectively improve the problems of exposed mines and vegetation damage caused by mining." Beijing Introduction of Wang Kai from Mentougou Branch of Municipal Planning and Land Commission. In the ecological restoration and treatment of abandoned mines, the most difficult task is the treatment of exposed rock walls.

 

In order to explore the best solution for the treatment of exposed rock walls, Mentougou piloted the treatment of abandoned mines such as Maiziyu in Longquan Town and Shuiyuzui in Miaofengshan Town. The pilot treatment adopts the technique of hanging nets and spraying attachment. Workers mix specific cement, nutrient soil and green plant seeds in a certain proportion into vegetation concrete, which is sprayed on the rock wall under pressure. After covering the rock wall, use drip irrigation and sprinkler irrigation facilities for watering, so that the green plant seeds in the concrete break out of the soil to form green vegetation, so as to achieve the purpose of retaining water and soil, reducing dust, and improving air quality.