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| Application and practice of vertical method in coal pillar reservation of mine village protection |
| Xin Zhiqiang |
| Shanxi Jinshen Energy Co., Ltd, Xinzhou 036500, China |
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Abstract In the mine design, in order to protect the village within the scope of the mine field from the influence of underground mining, reasonable determination of village protection coal pillar is one of the main problems faced by mine design. In view of this problem, taking the actual situation of Ciyaogou Coal Mine as an example, this paper introduces the influencing factors and methods of retaining protective coal pillar, expounds the design steps of retaining protective coal pillar by vertical method, and calculates the protective coal pillar of Dongshanliang Village in detail, and determines the boundary of protective coal pillar. The results show that the vertical method has good practicability in the design of mine protective coal pillar, and the safe mining of mine under buildings can be realized by using the vertical method to set up mine protective coal pillar. At the same time, it has certain guiding significance for the coal pillar retention in mines with similar conditions.
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