基于井下定向钻孔的煤层底板水害防治技术研究

doi:10.11799/ce201706020

Abstract

Abstract: Floor water invasion has been one of the major types of water disasters in the process of coal mine production and construction, but it has an important technical way for water disaster prevention and control in coal seam floor by the use of borehole grouting. In view of the shortcomings of conventional borehole for water disaster prevention and control, this paper proposes a method of using directional borehole for water disaster prevention and control in coal seam floor, and the borehole design and borehole construction and borehole grouting technology are studied, and the complete technical system is summed up. The application results show that the design is reasonable, the drilling construction goes well, the grouting effect is remarkable in Henan Iiaozuo mining area. The water disaster from coal seam floor is prevented and controlled in advance through this technology, and it also plays an important reference for similar conditions of mine areas with water disaster prevention and control in coal seam floor.

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Technology and application of Mine Floor Water Disaster Prevention by Directional Drilling in Underground Coal Mine

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