DOI: 10.11799/ce201801013
Drilling technology of directional drilled borehole for grouting reinforcement of coal seam floor in Sangshuping Coal Mine
JIN Xin
DUAN Hui-jun
CUI Yan-bo
WEI Huan-huan
Abstract：In order to ensure underground coal mine safety production,the paper provides a technical method of directional borehole of grouting reinforcement in coal seam floor with directional drilling technology.A systematic analysis and research was conducted on the casing drilling,directional drilling and grouting technology.The test results in Sangshuping Coal Mine show that the directional drilling can realize advance exploration and advance treatment of seam floor and increase the effective section of borehole in the aquifer,meanwhile the coordinates of water point can be accurately calculated,which has ensured the safe tunneling of No.11 coal roadway in Sangshuping Coal Mine.
Keywords：coal seam floorgrouting reinforcementdirectional drillingwater prevention and control
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 45-47,51 )